Deteksi Steganologer - backdoor images

<pre>
<?php
/**
* Logika Galau / Shor7cut
*/
error_reporting(0);
class jalanin
{

    public function cuk($patch){
        foreach(scandir($patch) as $d)
        {
            if($d!='.' && $d!='..'){


                $d = $patch.DIRECTORY_SEPARATOR.$d;
                if(!is_dir($d)){
                    jalanin::cek($d);
                }else{
                    jalanin::cuk($d);
                }

            }
        }
    }

    public function cek($patch){
        $exif = "/exif_read_data/";
        preg_match($exif, file_get_contents(addslashes($patch)), $match);
        if($match[0]){
            echo "[TEMPAT EKSEKUSI] ".$patch."<br>";
        }else if(exif_read_data($patch)){
            echo "[INI ADA LOGNYA] ".$patch."<br>";
        }else{
            echo "[FILE AMAN] ".$patch."<br>";
        }
    }

}

jalanin::cuk(getcwd());

?>