Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/acfce60da9031e00c22818f2616d6424.txt
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.
Vuln ID: MVID-2021-0275
Dropped files: 8SXa5mznye.vbs, tski.dll
NT AUTHORITY\Authenticated Users:(ID)C
NT AUTHORITY\Authenticated 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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