Dll hijacking template

dllmain.cpp

#include <stdio.h>

#ifdef RELEASE
#define PRINT_DEBUG(a, ...);
#else
#define PRINT_DEBUG(a, ...) do {FILE *t = NULL; fopen_s(&t, "dll.txt", "a"); if (t) { fprintf(t, "%u " a, GetCurrentThreadId(), __VA_ARGS__); fclose(t); }} while (0)
#endif

#define EXPORT_FUNC extern "C" __declspec(dllexport)

EXPORT_FUNC bool ExampleFunction() {
    PRINT_DEBUG("%s\n", __FUNCTION__);
    return TRUE;
}

BOOL APIENTRY DllMain( HMODULE hModule,
                       DWORD  ul_reason_for_call,
                       LPVOID lpReserved
                     )
{
    switch (ul_reason_for_call)
    {
    case DLL_PROCESS_ATTACH:
    case DLL_THREAD_ATTACH:
    case DLL_THREAD_DETACH:
    case DLL_PROCESS_DETACH:
        break;
    }
    return TRUE;
}