full-disclosure - [FD] Trojan-Spy.Win32.WinSpy.wlt / Insecure Permissions

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Message-ID: <CAAHK0WSiDSjDJg2yW2ZbKX5O1A3uauWq42rRb=OGg9Cn1Dg4Ww@mail.gmail.com>
Date: Mon, 15 Feb 2021 22:44:58 -0500
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Trojan-Spy.Win32.WinSpy.wlt / Insecure Permissions

Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source:
https://malvuln.com/advisory/00e1c4a654756dd6c9c81437c01ee3dd.txt
Contact: malvuln13@...il.com
Media: twitter.com/malvuln

Threat: Trojan-Spy.Win32.WinSpy.wlt
Vulnerability: Insecure Permissions
Description: WinSpy.wlt trojan drops an four executables, one of them
"dlink.exe" listens on TCP port 443. It also creates a dir named "MsPaint"
under Program Files (x86), granting full (F) permissions to everyone group.
Type: PE32
MD5: 00e1c4a654756dd6c9c81437c01ee3dd
Vuln ID: MVID-2021-0087
Dropped files: java.exe, winapp.exe, dlink.exe, RDS.exe, messenger.exe
Disclosure: 02/15/2021

Exploit/PoC:
C:\>cacls "\Program Files (x86)\MsPaint"
C:\Program Files (x86)\MsPaint Everyone:(OI)(CI)F

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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