Barebones launcher/injector for mhynot2

shittyinjector.cpp

#include <Windows.h>
#include <stdio.h>

#define GAME_DIR L"D:\\Games\\Genshin Impact\\Genshin Impact game"
#define DLL_PATH "C:\\Users\\Khang\\source\\repos\\mhynot2-rewritten\\x64\\Debug\\mhynot2-rewritten.dll"

int main() {
    printf("hi\n");

    SetCurrentDirectoryW(GAME_DIR);
    SetEnvironmentVariableW(L"__COMPAT_LAYER", L"RunAsInvoker"); // forcefully run as not admin

    STARTUPINFOW startup_info = {};
    startup_info.cb = sizeof(startup_info);
    PROCESS_INFORMATION process_info = {};

    SECURITY_ATTRIBUTES attrib = {};
    attrib.nLength = sizeof(attrib);
    SECURITY_DESCRIPTOR desc = {};

    auto shit = CreateProcessW(
        L"GenshinImpact.exe",
        NULL,
        NULL,
        NULL,
        FALSE,
        CREATE_SUSPENDED,
        NULL,
        NULL,
        &startup_info,
        &process_info
    );

    if (shit == FALSE) {
        printf("CreateProcessW epic fail GLE 0x%x\n", GetLastError());
        return 1;
    }

    auto loadlibrary = LoadLibraryA; // i actually had no idea that the address of kernel32 is the same between all processes
    const char* dll = DLL_PATH;
    auto mem = VirtualAllocEx(process_info.hProcess, NULL, strlen(dll) + 1, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);
    printf("LoadLibraryA %p\n", loadlibrary);
    printf("allocated path addr %p\n", mem);
    if (!mem) {
        printf("VirtualAllocEx epic fail GLE: 0x%x\n", GetLastError());
        return 1;
    }
    WriteProcessMemory(process_info.hProcess, mem, dll, strlen(dll) + 1, NULL);

    auto new_thread = CreateRemoteThread(
        process_info.hProcess,
        NULL,
        NULL,
        (LPTHREAD_START_ROUTINE)loadlibrary,
        mem,
        NULL,
        NULL
    );
    if (new_thread == NULL) {
        printf("CreateRemoteThread epic fail GLE: 0x%x\n", GetLastError());
        return 1;
    }

    printf("waiting for the dll loading thread to exit\n");
    WaitForSingleObject(new_thread, INFINITE);
    printf("looks like the dll injected properly, time to start the process\n");

    if (ResumeThread(process_info.hThread) == -1) {
        printf("ResumeThread epic fail GLE: 0x%x\n", GetLastError());
        return 1;
    }

    printf("everything seems to be good, cleaning up!\n");

    VirtualFreeEx(process_info.hProcess, mem, 0, MEM_RELEASE);

    CloseHandle(new_thread);
    CloseHandle(process_info.hProcess);
    CloseHandle(process_info.hThread);
    return 0;
}