Full Disclosure: Trojan.Win32.Inject.adwas / Insecure Permissions

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Trojan.Win32.Inject.adwas / Insecure Permissions

From: malvuln <malvuln13 () gmail com>
Date: Sat, 3 Jul 2021 17:38:48 -0400

Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source:
Contact: malvuln13 () gmail com
Media: twitter.com/malvuln

Threat: Trojan.Win32.Inject.adwas
Vulnerability: Insecure Permissions
Description: The malware creates a dir with insecure permissions under c:
drive and grants change (C) permissions to the authenticated user group.
Standard users can rename the executable dropped by the malware to disable
it or replace it with their own executable. Then wait for a privileged user
to logon to the infected machine to potentially escalate privileges.
Type: PE32
MD5: acfce60da9031e00c22818f2616d6424
Vuln ID: MVID-2021-0275
Dropped files: 8SXa5mznye.vbs, tski.dll
Disclosure: 07/03/2021

C:>cacls 8SXa5mznye8SXa5mznye
C:8SXa5mznye8SXa5mznye BUILTINAdministrators:(OI)(CI)(ID)F
                        NT AUTHORITYSYSTEM:(OI)(CI)(ID)F
                        NT AUTHORITYAuthenticated Users:(ID)C
                        NT AUTHORITYAuthenticated Users:(OI)(CI)(IO)(ID)C

C:>dir /a 8SXa5mznye8SXa5mznye
 Volume in drive C has no label.

 Directory of C:8SXa5mznye8SXa5mznye

06/16/2021  02:48 AM               190 8SXa5mznye.vbs
03/06/2017  08:49 AM           605,696 tski.dll
03/06/2017  08:49 AM         1,488,230 x
               3 File(s)      2,094,116 bytes

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provided that it is not altered except by reformatting it, and that due
credit is given. Permission is explicitly given for insertion in
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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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