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Updated to V4.5, improved handle hijacking routines, better start/sto…
…p download functionality, added FakeVEH shellcode execution method, fixed symbol issue and handle hijacking crash (hopefully)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,51 +1,76 @@ | ||
| #include "pch.h" | ||
|
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||
| #include "Eject.h" | ||
| #include "Start Routine.h" | ||
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| bool EjectDll(HANDLE hTargetProc, HINSTANCE hModule) | ||
| bool EjectDll(HANDLE hTargetProc, HINSTANCE hModule, bool WOW64) | ||
| { | ||
| LOG(" EjectDll called\n"); | ||
| LOG(" PID = %08X\n", GetProcessId(hTargetProc)); | ||
| LOG(" hModule = %p\n", hModule); | ||
| LOG(3, "EjectDll called\n"); | ||
| LOG(4, "PID = %08X\n", GetProcessId(hTargetProc)); | ||
| LOG(4, "hModule = %p\n", hModule); | ||
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| HANDLE hThread = nullptr; | ||
| auto ntRet = NATIVE::NtCreateThreadEx(&hThread, THREAD_ALL_ACCESS, nullptr, hTargetProc, NATIVE::LdrUnloadDll, ReCa<void *>(hModule), NULL, 0, 0, 0, nullptr); | ||
| if (FAILED(ntRet)) | ||
| { | ||
| LOG(" NtCreateThreadEx failed: %08X\n", ntRet); | ||
| ERROR_DATA eject_data; | ||
| DWORD remote_ret = 0; | ||
| DWORD ret = 0; | ||
|
|
||
| return false; | ||
| #ifdef _WIN64 | ||
| if (WOW64) | ||
| { | ||
| ret = StartRoutine_WOW64(hTargetProc, WOW64::LdrUnloadDll_WOW64, MDWD(hModule), LAUNCH_METHOD::LM_NtCreateThreadEx, NULL, remote_ret, INJ_EJECT_TIMEOUT, eject_data); | ||
| } | ||
|
|
||
| if (WaitForSingleObject(hThread, 500) != WAIT_OBJECT_0) | ||
| else | ||
| { | ||
| LOG(" Ejection thread timed out\n"); | ||
| ret = StartRoutine(hTargetProc, ReCa<f_Routine>(NATIVE::LdrUnloadDll), hModule, LAUNCH_METHOD::LM_NtCreateThreadEx, NULL, remote_ret, INJ_EJECT_TIMEOUT, eject_data); | ||
| } | ||
| #else | ||
| UNREFERENCED_PARAMETER(WOW64); | ||
|
|
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| TerminateThread(hThread, 0); | ||
| CloseHandle(hThread); | ||
| ret = StartRoutine(hTargetProc, ReCa<f_Routine>(NATIVE::LdrUnloadDll), hModule, LAUNCH_METHOD::LM_NtCreateThreadEx, NULL, remote_ret, INJ_EJECT_TIMEOUT, eject_data); | ||
| #endif | ||
|
|
||
| if (ret != SR_ERR_SUCCESS) | ||
| { | ||
| LOG(3, "Failed to eject dll:\n"); | ||
| LOG(4, "ret = %08X\n", ret); | ||
| LOG(4, "advanced = %08X\n", eject_data.AdvErrorCode); | ||
|
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| return false; | ||
| } | ||
|
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| if (!GetExitCodeThread(hThread, ReCa<DWORD *>(&ntRet))) | ||
| else if (NT_FAIL(remote_ret)) | ||
| { | ||
| LOG(" GetExitCodeThread failed: %08X\n", GetLastError()); | ||
|
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| CloseHandle(hThread); | ||
| LOG(3, "Failed to eject dll:\n"); | ||
| LOG(4, "remote_ret = %08X:\n", remote_ret); | ||
|
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| return false; | ||
| } | ||
|
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| CloseHandle(hThread); | ||
| LOG(3, "Dll ejected successfully\n"); | ||
|
|
||
| if (NT_FAIL(ntRet)) | ||
| { | ||
| LOG(" LdrUnloadDll failed: %08X\n", ntRet); | ||
| return true; | ||
| } | ||
|
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||
| return false; | ||
| bool EjectHijackLibrary(HANDLE hTargetProc, HINSTANCE hInjectionModuleEx, bool Interrupt) | ||
| { | ||
| LOG(2, "Ejecting hijack library\n"); | ||
|
|
||
| if (!Interrupt) | ||
| { | ||
| return EjectDll(hTargetProc, hInjectionModuleEx); | ||
| } | ||
|
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| LOG(" Dll ejected successfully\n"); | ||
| ERROR_DATA interrupt_data; | ||
| DWORD remote_ret = 0; | ||
| DWORD ret = 0; | ||
| f_Routine pInterruptDownloadEx = ReCa<f_Routine>(ReCa<UINT_PTR>(InterruptDownloadEx) - ReCa<UINT_PTR>(g_hInjMod) + ReCa<UINT_PTR>(hInjectionModuleEx)); | ||
|
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| return true; | ||
| ret = StartRoutine(hTargetProc, pInterruptDownloadEx, nullptr, LAUNCH_METHOD::LM_NtCreateThreadEx, NULL, remote_ret, INJ_EJECT_TIMEOUT, interrupt_data); | ||
|
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| if (ret != SR_ERR_SUCCESS) | ||
| { | ||
| LOG(2, "Failed to interrupt hijack library:\n"); | ||
| LOG(3, "ret = %08X\n", ret); | ||
| LOG(3, "advanced = %08X\n", interrupt_data.AdvErrorCode); | ||
| } //try to eject even if interrupt failed | ||
|
|
||
| return EjectDll(hTargetProc, hInjectionModuleEx); | ||
| } |
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