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我试图从另一个程序调用一个进程,这个进程是我通过 DLL 注入的。第一个,我们加载库“Client.dll”的地方完美运行,这是由 DllMain (DLL_PROCESS_ATTACH) 中的 MessageBox Debug 播种的。

将 DLL 加载到程序中后,我尝试从 Client.dll 调用 MainThread 函数,但是使用相同的方法(复制、粘贴、编辑)不起作用。两个都贴在下面,谁能告诉我为什么?我已经从 MainThread 中删除了所有代码,但出于调试原因。

这是主线程:

void MainThread(void * Arguments)
{
    MessageBoxA(NULL, "MainThread Started!", "bla", MB_OK); //Not Shown
    for (;;)
    {
         //This loop is here for the main program loop.
    }
    _endthread();
}

这是我加载 Client.dll 并尝试调用主线程的方式,请记住实际注入工作,但不是主线程的启动。

bool InjectDLL(DWORD ProcessID, const char* Path)
{
    HANDLE Handle = OpenProcess(PROCESS_ALL_ACCESS, false, ProcessID);
    if (!Handle)
    {
        std::cout << "Could not access process! Inject Failed!";
        return false;
    }

    LPVOID LoadLibraryAddress = (LPVOID)GetProcAddress(GetModuleHandleA("kernel32.dll"), "LoadLibraryA");
    LPVOID Allocate = VirtualAllocEx(Handle, NULL, strlen(Path), MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
    WriteProcessMemory(Handle, Allocate, Path, strlen(Path), NULL);

    HANDLE Thread = CreateRemoteThread(Handle, NULL, NULL, (LPTHREAD_START_ROUTINE)LoadLibraryAddress, Allocate, 0, NULL);
    WaitForSingleObject(Thread, INFINITE); // WAIT FOREVER!
    VirtualFreeEx(Handle, Thread, strlen(Path), MEM_RELEASE);

    //Start DLL Main Thread
    LPVOID MainThreadAddress = (LPVOID)GetProcAddress(GetModuleHandleA("Client.dll"), "MainThread");
    Allocate = VirtualAllocEx(Handle, NULL, 0, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
    WriteProcessMemory(Handle, Allocate, Path, strlen(Path), NULL);

    HANDLE MainThread = CreateRemoteThread(Handle, NULL, NULL, (LPTHREAD_START_ROUTINE)MainThreadAddress, Allocate, 0, NULL);
    WaitForSingleObject(MainThread, INFINITE); // Wait for Main Thread to start
    VirtualFreeEx(Handle, MainThread, strlen(Path), MEM_RELEASE);

    CloseHandle(MainThread);
    CloseHandle(Thread);
    CloseHandle(Handle);
    return true;
}

感谢任何能提供帮助的人。

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1 回答 1

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我没有看到任何错误检查 - 特别是在您获取“MainThread”地址的情况下。这是成功了吗?

为了使其正常工作,您需要通过 .DEF 文件或使用__declspec( dllexport ). 有关详细信息,请参阅此 SO 链接

于 2014-10-09T17:17:02.033 回答