Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/35cf54a19efcdeaa41899647075c7ef9.txt
Vulnerability: Insecure Permissions
Description: Agent.bjev creates an insecure dir named "Windupdt" under c:\ drive, granting change permissions (C) to the authenticated user group. Standard users can rename the malware to disable it or replace with their own executable. Then wait for a privileged user to logon to the infected machine to potentially escalate privileges.
Vuln ID: MVID-2021-0123
Dropped files: winupdate.exe
NT AUTHORITY\Authenticated Users:(ID)C
NT AUTHORITY\Authenticated Users:(OI)(CI)(IO)(ID)C
Volume in drive C has no label.
Directory of C:\Windupdt
06/17/2012 12:16 AM 974,848 winupdate.exe
1 File(s) 974,848 bytes
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