C语言编写的DLL注入工具源代码
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- // 鍙傛暟绫诲瀷
- typedef struct _INJECTTHREAD_PARAM
- {
- FARPROC pFunc[3];
- char szBuf[2][128];
- } INJECTTHREAD_PARAM, *PINJECTTHREAD_PARAM;
-
- // 姝ゅ嚱鏁颁互浠g爜褰㈠紡娉ㄥ叆鐩爣杩涚▼
- DWORD WINAPI InjectThreadProc(LPVOID param)
- {
- PINJECTTHREAD_PARAM pParam = (PINJECTTHREAD_PARAM)param;
- HMODULE hModule;
- FARPROC pFunc;
- HANDLE hThread;
-
- // 娉ㄥ叆鐨勪唬鐮侀噷涓嶈兘鐩存帴璋冪敤API鍑芥暟
- // LoadLibraryA(szDllPath)
- hModule = ((PFLOADLIBRARYA)pParam->pFunc[0])(pParam->szBuf[0]);
- if (!hModule)
- {
- return 1;
- }
-
- // GetProcAddress(hModule, szFunc)
- pFunc = ((PFGETPROCADDRESS)pParam->pFunc[1])(hModule, pParam->szBuf[1]);
- if (!pFunc)
- {
- return 1;
- }
-
- // CreateThread()鎵ц鍔犺浇鏃惰杩愯鐨勫嚱鏁, 涓嶇煡閬撲娇鐢ㄨ繖绉嶆柟寮忓悎涓嶅悎閫
- hThread = ((PFCREATETHREAD)pParam->pFunc[2])(NULL, 0, (LPTHREAD_START_ROUTINE)pFunc, NULL, 0, NULL);
-
- return 0;
- }
-
- BOOL InjectDll(DWORD dwPID, LPCSTR szDllPath, LPCSTR szFunc)
- {
- HMODULE hModule;
- INJECTTHREAD_PARAM param;
- HANDLE hProcess;
- HANDLE hThread;
- LPVOID pRemoteBuf[2];
- DWORD dwSize;
-
- hModule = GetModuleHandleW(L"kernel32.dll");
- memset(露m, 0, sizeof(INJECTTHREAD_PARAM));
- // 瑕佽繘琛屼唬鐮佹敞鍏, 灏卞繀闇瑕佹妸瑕佽皟鐢ㄥ弬鏁板厛鍐欏叆鐩爣杩涚▼
- param.pFunc[0] = GetProcAddress(hModule, "LoadLibraryA");
- param.pFunc[1] = GetProcAddress(hModule, "GetProcAddress");
- param.pFunc[2] = GetProcAddress(hModule, "CreateThread");
- strcpy_s(param.szBuf[0], strlen(szDllPath) + 1, szDllPath);
- strcpy_s(param.szBuf[1], strlen(szFunc) + 1, szFunc);
-
- if (!(hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, dwPID)))
- {
- return FALSE;
- }
-
- // 鍒ゆ柇鐜
- if (Is64BitProcess(GetCurrentProcess()) != Is64BitProcess(hProcess))
- {
- MessageBox(NULL, TEXT("鎵撳紑鍔ㄦ侀摼鎺ュ簱鏂囦欢澶辫触"), TEXT("鎻愮ず"), MB_ICONERROR | MB_OK);
- CloseHandle(hProcess);
- return FALSE;
- }
-
- dwSize = sizeof(INJECTTHREAD_PARAM);
- if (!(pRemoteBuf[0] = VirtualAllocEx(hProcess, NULL, dwSize, MEM_COMMIT, PAGE_READWRITE)))
- {
- return FALSE;
- }
- // 灏嗗叏閮ㄧ殑鍙傛暟浣滀负缁撴瀯浣撴暣涓啓鍏
- if (!WriteProcessMemory(hProcess, pRemoteBuf[0], (LPVOID)露m, dwSize, NULL))
- {
- return FALSE;
- }
-
- dwSize = (DWORD)InjectDll - (DWORD)InjectThreadProc;
- if (!(pRemoteBuf[1] = VirtualAllocEx(hProcess, NULL, dwSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE)))
- {
- return FALSE;
- }
- // 鍐嶅皢InjectThreadProc鐨勫嚱鏁颁唬鐮佸啓鍏ョ洰鏍囪繘绋
- if (!WriteProcessMemory(hProcess, pRemoteBuf[1], (LPVOID)InjectThreadProc, dwSize, NULL))
- {
- return FALSE;
- }
-
- // pRemoteBuf[1]灏辨槸InjectThreadProc鍦ㄧ洰鏍囪繘绋嬩腑鐨勮捣濮嬪湴鍧, 宸茬粡琚啓鍏, pRemoteBuf[0]鍒欐槸鍐欏叆鐨勫弬鏁板湴鍧
- if (!(hThread = CreateRemoteThread(hProcess, NULL, 0, (LPTHREAD_START_ROUTINE)pRemoteBuf[1], pRemoteBuf[0], 0, NULL)))
- {
- return FALSE;
- }
-
- WaitForSingleObject(hThread, INFINITE);
-
- VirtualFreeEx(hProcess, pRemoteBuf[0], 0, MEM_RELEASE);
- VirtualFreeEx(hProcess, pRemoteBuf[1], 0, MEM_RELEASE);
-
- CloseHandle(hThread);
- CloseHandle(hProcess);
-
- return TRUE;
- [align=left]
- }
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