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- mimic delay in winverifytrust hook

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- add log messages for errors
This commit is contained in:
a
2025-08-15 15:22:53 +03:00
parent 6319e5d0f2
commit 2946dfbcee
1 changed files with 24 additions and 17 deletions
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41
steam_old_lib/dllmain.cpp
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@@ -9,6 +9,7 @@
#include <string>
#include <stdexcept>
#include <exception>
#include <string_view>
#include <cstdint>
@@ -71,6 +72,7 @@ __declspec(noinline)
static LONG WINAPI WinVerifyTrust_hook(HWND hwnd, GUID *pgActionID, LPVOID pWVTData) {
if (WinVerifyTrust_hooked) {
PRINT_DEBUG_ENTRY();
Sleep(2000); // mimic original behavior
SetLastError(ERROR_SUCCESS);
return 0; // success
}
@@ -79,6 +81,8 @@ static LONG WINAPI WinVerifyTrust_hook(HWND hwnd, GUID *pgActionID, LPVOID pWVTD
return actual_WinVerifyTrust(hwnd, pgActionID, pWVTData);
}
PRINT_DEBUG("[X] hook isn't enabled but original pointer is null, returning success anyway!");
Sleep(2000); // mimic original behavior
SetLastError(ERROR_SUCCESS);
return 0; // success
}
@@ -141,20 +145,20 @@ static bool redirect_win32_apis()
PRINT_DEBUG_ENTRY();
try {
wintrust_dll = LoadLibraryExW(wintrust_lib_path.c_str(), NULL, 0);
if (!wintrust_dll) throw std::runtime_error("");
if (!wintrust_dll) throw std::runtime_error("failed to load wintrust lib");
actual_WinVerifyTrust = (decltype(actual_WinVerifyTrust))GetProcAddress(wintrust_dll, "WinVerifyTrust");
if (!actual_WinVerifyTrust) throw std::runtime_error("");
if (!actual_WinVerifyTrust) throw std::runtime_error("failed to get proc address of WinVerifyTrust()");
if (DetourTransactionBegin() != NO_ERROR) throw std::runtime_error("");
if (DetourUpdateThread(GetCurrentThread()) != NO_ERROR) throw std::runtime_error("");
if (DetourTransactionBegin() != NO_ERROR) throw std::runtime_error("call failed: DetourTransactionBegin");
if (DetourUpdateThread(GetCurrentThread()) != NO_ERROR) throw std::runtime_error("call failed: DetourUpdateThread");
if (DetourAttach((PVOID *)&actual_WinVerifyTrust, (PVOID)WinVerifyTrust_hook) != NO_ERROR) throw std::runtime_error("");
if (DetourAttach((PVOID *)&actual_LoadLibraryA, (PVOID)LoadLibraryA_hook) != NO_ERROR) throw std::runtime_error("");
if (DetourAttach((PVOID *)&actual_LoadLibraryExA, (PVOID)LoadLibraryExA_hook) != NO_ERROR) throw std::runtime_error("");
if (DetourAttach((PVOID *)&actual_LoadLibraryW, (PVOID)LoadLibraryW_hook) != NO_ERROR) throw std::runtime_error("");
if (DetourAttach((PVOID *)&actual_LoadLibraryExW, (PVOID)LoadLibraryExW_hook) != NO_ERROR) throw std::runtime_error("");
if (DetourTransactionCommit() != NO_ERROR) throw std::runtime_error("");
if (DetourAttach((PVOID *)&actual_WinVerifyTrust, (PVOID)WinVerifyTrust_hook) != NO_ERROR) throw std::runtime_error("attach failed: WinVerifyTrust");
if (DetourAttach((PVOID *)&actual_LoadLibraryA, (PVOID)LoadLibraryA_hook) != NO_ERROR) throw std::runtime_error("attach failed: LoadLibraryA");
if (DetourAttach((PVOID *)&actual_LoadLibraryExA, (PVOID)LoadLibraryExA_hook) != NO_ERROR) throw std::runtime_error("attach failed: LoadLibraryExA");
if (DetourAttach((PVOID *)&actual_LoadLibraryW, (PVOID)LoadLibraryW_hook) != NO_ERROR) throw std::runtime_error("attach failed: LoadLibraryW");
if (DetourAttach((PVOID *)&actual_LoadLibraryExW, (PVOID)LoadLibraryExW_hook) != NO_ERROR) throw std::runtime_error("attach failed: LoadLibraryExW");
if (DetourTransactionCommit() != NO_ERROR) throw std::runtime_error("call failed: DetourTransactionCommit");
WinVerifyTrust_hooked = true;
LoadLibraryA_hooked = true;
@@ -162,9 +166,10 @@ static bool redirect_win32_apis()
LoadLibraryW_hooked = true;
LoadLibraryExW_hooked = true;
PRINT_DEBUG("success!");
return true;
} catch (...) {
} catch (const std::exception &ex) {
PRINT_DEBUG("[X] error: %s", ex.what());
}
if (wintrust_dll) {
@@ -172,6 +177,7 @@ static bool redirect_win32_apis()
wintrust_dll = nullptr;
}
PRINT_DEBUG("[X] Win32 API redirection failed");
return false;
}
@@ -187,8 +193,8 @@ static bool restore_win32_apis()
bool ret = false;
try {
if (DetourTransactionBegin() != NO_ERROR) throw std::runtime_error("");
if (DetourUpdateThread(GetCurrentThread()) != NO_ERROR) throw std::runtime_error("");
if (DetourTransactionBegin() != NO_ERROR) throw std::runtime_error("call failed: DetourTransactionBegin");
if (DetourUpdateThread(GetCurrentThread()) != NO_ERROR) throw std::runtime_error("call failed: DetourUpdateThread");
if (actual_WinVerifyTrust) {
DetourDetach((PVOID *)&actual_WinVerifyTrust, (PVOID)WinVerifyTrust_hook);
@@ -198,11 +204,11 @@ static bool restore_win32_apis()
DetourDetach((PVOID *)&actual_LoadLibraryExA, (PVOID)LoadLibraryExA_hook);
DetourDetach((PVOID *)&actual_LoadLibraryW, (PVOID)LoadLibraryW_hook);
DetourDetach((PVOID *)&actual_LoadLibraryExW, (PVOID)LoadLibraryExW_hook);
if (DetourTransactionCommit() != NO_ERROR) throw std::runtime_error("");
if (DetourTransactionCommit() != NO_ERROR) throw std::runtime_error("call failed: DetourTransactionCommit");
ret = true;
} catch (...) {
} catch (const std::exception &ex) {
PRINT_DEBUG("[X] error: %s", ex.what());
}
if (wintrust_dll) {
@@ -210,6 +216,7 @@ static bool restore_win32_apis()
wintrust_dll = nullptr;
}
PRINT_DEBUG("result = %i", (int)ret);
return ret;
}