C++ Dll İnject ile Yapılan hacklerin Engellenmesi

#include "stdafx.h" 
#include <direct.h> 
#include <Windows.h> 
#include <TlHelp32.h> 
#include <iostream> 
#include <urlmon.h> 
#include <shellapi.h> 
#pragma comment (lib, "Urlmon.lib") 
using namespace std; 
void StartDefending(); 
void BlockInject(HANDLE, char*, char*); 
bool CheckFiles(); 
bool LoadFile(); 
void Main(); 
HWND hwnd; 
 BOOL APIENTRY DllMain( HMODULE hModule, 
                       DWORD  ul_reason_for_call, 
                       LPVOID lpReserved 
                     ) 
{ 
    switch (ul_reason_for_call) 
    { 
    case DLL_PROCESS_ATTACH: 
        Main(); 
    case DLL_THREAD_ATTACH: 
    case DLL_THREAD_DETACH: 
    case DLL_PROCESS_DETACH: 
        break; 
    } 
    return TRUE; 
} 
 void Main(){ 
    if(CheckFiles() == false){ 
        MessageBoxA(hwnd, "Dosyalarını hatalı veya bulunamadı.\n" 
        "Yani Dosyalarınız indiriliyor.\n" 
        "Lütfen bekleyiniz, indirme bitince oyun otomatik olarak açılacaktır.", "Hata", MB_ICONERROR|MB_NOFOCUS); 
        LoadFile(); 
        ExitProcess(0); 
    } 
    else{ 
        CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)StartDefending, NULL, 0, NULL); 
    } 
} 
 bool CheckFiles(){ 
    FILE *root_eix, *root_epk; 
    long eix, epk; 
    root_eix = fopen("pack/root.eix", "r"); 
    root_epk = fopen("pack/root.epk", "r"); 
    if(root_eix == NULL || root_epk == NULL) 
        return false; 
    else{ 
        fseek(root_eix, 0, SEEK_END); 
        fseek(root_epk, 0, SEEK_END); 
        eix = ftell(root_eix); 
        epk = ftell(root_epk); 
        if(eix != 3040){ 
            return false; 
        } 
        else if(eix == 3040){ 
            return true; 
        } 
        else if(epk != 530528){ 
            return false; 
        } 
        else if(epk == 530528){ 
            return true; 
        } 
    } 
} 
 bool LoadFile(){ 
    ShellExecute(NULL, NULL, "M2Test.exe", NULL, NULL, SW_SHOWNORMAL); 
    return true; 
} 
 void StartDefending(){ 
    bool pointer=true; 
    bool pointer2=true; 
    while(1){ 
        if(pointer){ 
            if(GetAsyncKeyState(VK_LBUTTON) && 1){ 
                pointer=false; 
            } 
            if(GetAsyncKeyState(VK_RBUTTON) && 1){ 
                pointer=false; 
            } 
        } 
        if(!pointer){ 
            if(pointer2){ 
                if(GetAsyncKeyState(VK_LBUTTON) && 1){ 
                    BlockInject(GetCurrentProcess(), "NTDLL.dll", "LdrLoadDll"); 
                    pointer2=false; 
                } 
                if(GetAsyncKeyState(VK_RBUTTON) && 1){ 
                    BlockInject(GetCurrentProcess(), "NTDLL.dll", "LdrLoadDll"); 
                    pointer2=false; 
                } 
                if(GetAsyncKeyState(VK_TAB) && 1){ 
                    BlockInject(GetCurrentProcess(), "NTDLL.dll", "LdrLoadDll"); 
                    pointer2=false; 
                } 
                if(GetAsyncKeyState(VK_F1) && 1){ 
                    BlockInject(GetCurrentProcess(), "NTDLL.dll", "LdrLoadDll"); 
                    pointer2=false; 
                } 
                if(GetAsyncKeyState(VK_F2) && 1){ 
                    BlockInject(GetCurrentProcess(), "NTDLL.dll", "LdrLoadDll"); 
                    pointer2=false; 
                } 
                if(GetAsyncKeyState(VK_F3) && 1){ 
                    BlockInject(GetCurrentProcess(), "NTDLL.dll", "LdrLoadDll"); 
                    pointer2=false; 
                } 
                if(GetAsyncKeyState(VK_F4) && 1){ 
                    BlockInject(GetCurrentProcess(), "NTDLL.dll", "LdrLoadDll"); 
                    pointer2=false; 
                } 
                if(GetAsyncKeyState(VK_F5) && 1){ 
                    BlockInject(GetCurrentProcess(), "NTDLL.dll", "LdrLoadDll"); 
                    pointer2=false; 
                } 
                if(GetAsyncKeyState(VK_F6) && 1){ 
                    BlockInject(GetCurrentProcess(), "NTDLL.dll", "LdrLoadDll"); 
                    pointer2=false; 
                } 
                if(GetAsyncKeyState(VK_F7) && 1){ 
                    BlockInject(GetCurrentProcess(), "NTDLL.dll", "LdrLoadDll"); 
                    pointer2=false; 
                } 
                if(GetAsyncKeyState(VK_F8) && 1){ 
                    BlockInject(GetCurrentProcess(), "NTDLL.dll", "LdrLoadDll"); 
                    pointer2=false; 
                } 
                if(GetAsyncKeyState(VK_F9) && 1){ 
                    BlockInject(GetCurrentProcess(), "NTDLL.dll", "LdrLoadDll"); 
                    pointer2=false; 
                } 
                if(GetAsyncKeyState(VK_F10) && 1){ 
                    BlockInject(GetCurrentProcess(), "NTDLL.dll", "LdrLoadDll"); 
                    pointer2=false; 
                } 
                if(GetAsyncKeyState(VK_F11) && 1){ 
                    BlockInject(GetCurrentProcess(), "NTDLL.dll", "LdrLoadDll"); 
                    pointer2=false; 
                } 
                if(GetAsyncKeyState(VK_F12) && 1){ 
                    BlockInject(GetCurrentProcess(), "NTDLL.dll", "LdrLoadDll"); 
                    pointer2=false; 
                } 
            } 
        } 
    } 
} 
 void BlockInject(HANDLE process, char* libname, char* apiname) 
{  
    DWORD pIP = 0; 
    DWORD pRet[]={0xC3}; 
    BYTE Buff = sizeof(pRet); 
    VOID* pAddr = GetProcAddress(LoadLibraryA(libname), apiname); 
    WriteProcessMemory(GetCurrentProcess(), (LPVOID)pAddr, (LPVOID)pRet, Buff, &pIP); 
}