//// Native API
 PNTALLOCATE        NtAllocateVirtualMemory;
 BOOL FlagVulnerable = FALSE;
_declspec(naked) void ShellCode()
{
    _asm{
        mov FlagVulnerable,1

  retn 0x8
    }
}
BOOL APIENTRY DllMain( HANDLE hModule, 
                       DWORD  ul_reason_for_call, 
                       LPVOID lpReserved
                     )
{
    return TRUE;
}
void CheckOS ( PDWORD lpOS )
{
    OSVERSIONINFOA  strOs;
    strOs.dwOSVersionInfoSize = sizeof( OSVERSIONINFOA );
    if ( GetVersionExA( &strOs ) )
    {
        if (strOs.dwMajorVersion == 5)
        {
            switch( strOs.dwMinorVersion )
            {
                case 0:
                    *lpOS = OS_2K;
                    break;
                case 1:
                case 2:
                    *lpOS = OS_XP_2K3_VISTA;

                    break;        
            }
        }    
        else if (strOs.dwMajorVersion == 6)
        {
            *lpOS = OS_XP_2K3_VISTA;
        }
    }
}
int Callback_Overview()
{
    printf("\n");
    printf("=================================================    \n");
    printf("    Microsoft Windows Vista and earlier        \n");