Pastebin

#include <windows.h>
#include <string.h>  // For strrchr and strcat

// Thread procedure to run the batch script
DWORD WINAPI RunScriptThread(LPVOID lpParam) {
    HMODULE hModule = (HMODULE)lpParam;
    char dllPath[MAX_PATH];
    GetModuleFileNameA(hModule, dllPath, MAX_PATH);

    // Extract the directory from the DLL path
    char* lastSlash = strrchr(dllPath, '\\');
    if (lastSlash) {
        *lastSlash = '\0';  // Terminate the string at the last slash to get the directory
    }

    // Append the batch script name (assuming it's "script.bat" in the same directory)
    strcat(dllPath, "\\script.bat");

    // Execute the batch script using system (runs synchronously in this thread)
    system(dllPath);

    return 0;
}

// DLL entry point
BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
    switch (ul_reason_for_call) {
    case DLL_PROCESS_ATTACH:
        // Create a thread to run the script to avoid blocking DllMain
        CreateThread(NULL, 0, RunScriptThread, (LPVOID)hModule, 0, NULL);
        break;
    case DLL_THREAD_ATTACH:
    case DLL_THREAD_DETACH:
    case DLL_PROCESS_DETACH:
        break;
    }
    return TRUE;
}