full-disclosure - [FD] Backdoor.Win32.Anaptix.bd / Insecure Permissions

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Date: Sat, 30 Jan 2021 16:22:12 -0500
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Backdoor.Win32.Anaptix.bd / Insecure Permissions

Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source:
https://malvuln.com/advisory/9f178de7f9918288d93ac0f065f0aa2f.txt
Contact: malvuln13@...il.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Anaptix.bd
Vulnerability: Insecure Permissions
Description: Anaptix.bd malware creates a vuln directory named
Synaptics under c:\ drive, granting change (C) permissions to the
authenticated users group.
Type: PE32
MD5: 9f178de7f9918288d93ac0f065f0aa2f
Vuln ID: MVID-2021-0062
Disclosure: 01/30/2021

Exploit/PoC:
C:\>cacls Synaptics
C:\Synaptics BUILTIN\Administrators:(OI)(CI)(ID)F
             NT AUTHORITY\SYSTEM:(OI)(CI)(ID)F
             BUILTIN\Users:(OI)(CI)(ID)R
             NT AUTHORITY\Authenticated Users:(ID)C
             NT AUTHORITY\Authenticated Users:(OI)(CI)(IO)(ID)C

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