Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source:
https://malvuln.com/advisory/ef1e59148c9a902ae5454760aaab73fe.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Trojan-Banker.Win32.Banker.agzg
Vulnerability: Insecure Permissions
Description: The malware writes a PE file to 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.
Family: Banker
Type: PE32
MD5: ef1e59148c9a902ae5454760aaab73fe
Vuln ID: MVID-2022-0608
Disclosure: 06/06/2022


Exploit/PoC:
C:\>cacls tuto.exe
C:\tuto.exe BUILTIN\Administrators:(ID)F
            NT AUTHORITY\SYSTEM:(ID)F
            BUILTIN\Users:(ID)R
            NT AUTHORITY\Authenticated Users:(ID)C


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

 Directory of C:\

05/04/2022  02:56 AM            14,336 tuto.exe
               1 File(s)         14,336 bytes


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