Backdoor.Win32.Vernet.axt Insecure Permissions

Backdoor.Win32.Vernet.axt malware suffers from an insecure permissions vulnerability.

MD5 | 2ee467842485eb6fe2395f56587a3097

Discovery / credits: Malvuln - (c) 2021
Original source:
Contact: [email protected]

Threat: Backdoor.Win32.Vernet.axt
Vulnerability: Insecure Permissions
Description: The malware writes an .EXE with insecure permissions under c:\ drive granting 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: f529d60abbdafccce3dc5e5ffd6cdfa6
Vuln ID: MVID-2021-0413
Disclosure: 12/03/2021

C:\>cacls chikean.exe
C:\chikean.exe BUILTIN\Administrators:(ID)F
NT AUTHORITY\Authenticated Users:(ID)C

C:\>dir chikean.exe
Volume in drive C has no label.

Directory of C:\

06/17/2012 01:43 AM 146,944 chikean.exe
1 File(s) 146,944 bytes

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