full-disclosure - [FD] Backdoor.Win32.Verify.f / Missing Authentication

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Message-ID: <CAAHK0WRzAjVP00Ra6BnMgwzUX7EA9F2g3g3Sh1nBagLqBQm38g@mail.gmail.com>
Date: Wed, 20 Jan 2021 22:32:02 -0500
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Backdoor.Win32.Verify.f / Missing Authentication

Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source:
https://malvuln.com/advisory/119cd00c48678d63ec07762a7ff08ac7.txt
Contact: malvuln13@...il.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Verify.f
Vulnerability: Missing Authentication
Description: Backdoor.Win32.Verify by pMK, yet another self-hating
backdoor as it lacks authentication granting access to whoever can
reach the infected system. This malware listens on both TCP ports 1906
and 1907, after telnet logon you are greeted with:

Welcome to pMK_Veryfun v2081, type "help" or "helpv" for more information.
Version [2081] - 27 Mar 2005 - Written by [pMK] - x0x0x0x0x0x0x0 [pTH]
Access granted! My IP is [x.x.x.x|DESKTOP-BLAHBLAH]

Type: PE32
MD5: 119cd00c48678d63ec07762a7ff08ac7
Vuln ID: MVID-2021-0043
Dropped files: MsSysInfo32.exe
Disclosure: 01/20/2021

Exploit/PoC:
TELNET MALWARE_INFECTED_HOST 1906

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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