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Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2022040109

Below is a copy:

Backdoor.Win32.GF.j / Unauthenticated Remote Command Execution
Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source: https://malvuln.com/advisory/fa00524d7289cdba327d5c34ab3d9bd7.txt
Contact: [email protected]
Media: twitter.com/malvuln

Threat: Backdoor.Win32.GF.j
Vulnerability: Unauthenticated Remote Command Execution
Description: The malware listens on TCP port 21554. Third-party adversaries who can reach infected hosts can run commands made available by the backdoor.

Eg. commands
setport (change port)
RESETALL (resets to default port)
KillHER (terminates backdoor)

Family: GF
Type: PE32
MD5: fa00524d7289cdba327d5c34ab3d9bd7
Vuln ID: MVID-2022-0566
Dropped files: Windll.exe 
Disclosure: 04/26/2022


Exploit/PoC:
C:\>nc64.exe x.x.x.x 21554
setport 666
New port:  666
KillHER


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