AoB Scan

bool Check(const BYTE *pbData, const BYTE *pbMask, const char *pszMask)
{
    for(; *pszMask; ++pszMask, ++pbData, ++pbMask)
        if(*pszMask != '?' && *pbData != *pbMask )
            return false;

    return (*szMask) == NULL;
}

DWORD FindPattern(BYTE *bMask, char *pszMask, DWORD dwOffset)
{
    DWORD dwAddress = 0x00400000;
    DWORD dwLen = 0x07FFFFFF;

    __try
    {
        for(DWORD i = 0; i < dwLen; i++)
            if(Check((BYTE*)(dwAddress + i), bMask, pszMask))
                return (DWORD)(dwAddress + i + dwOffset);
    }
    __except(EXCEPTION_EXECUTE_HANDLER)
    {
        MessageBox(NULL, "Error occurred while trying to find the pattern.", "Error", MB_OK | MB_ICONERROR);
    }

    return 0x00400000;
}