full-disclosure - [FD] Backdoor.Win32.DirectConnection.103 (1.0 RAT-Tool) / Weak Hardcoded Password

Open Source and information security mailing list archives

Date: Thu, 3 Mar 2022 21:03:28 -0500
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Backdoor.Win32.DirectConnection.103 (1.0 RAT-Tool) / Weak
	Hardcoded Password

Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source:
https://malvuln.com/advisory/6a6ce3e7f24bf000d9a011a8f1905da8.txt
Contact: malvuln13@...il.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.DirectConnection.103 (1.0 RAT-Tool)
Vulnerability: Weak Hardcoded Password
Description: The malware listens on random incrementing high TCP ports
49701,49702 etc. When updating the backdoor the output files password
"1234!" is weak and hardcoded in cleartext within the PE file.
Family: DirectConnection
Type: PE32
MD5: 6a6ce3e7f24bf000d9a011a8f1905da8
Vuln ID: MVID-2022-0508
Dropped files: update.exe
Disclosure: 03/03/2022

Exploit/PoC:
'C:/update.exe',0

CODE:00498094 aTheNewServerOn db 'The new Server on the PC you will update
uses Port 1600 and Passw'
CODE:00498094                                         ; DATA XREF:
CODE:00497F04↑o
CODE:00498094                 db 'ord 1234!',0  <========== HERE

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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