Discovery / credits: Malvuln - (c) 2021  
Original source:  
Threat: Backdoor.Win32.Delf.wr  
Vulnerability: Port Bounce Scan  
Description: The CrazyInvadres Group⌐ 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.  
Type: PE32  
MD5: fc74e80ff2f49380972904d77df1c0f1  
Vuln ID: MVID-2021-0327  
Disclosure: 08/30/2021  
nmap -n -Pn -b mal:vuln@ -p21,22,80  
Starting Nmap 7.80 ( ) at 2021-08-28 22:30 Pacific Daylight Time  
Nmap scan report for  
Host is up.  
21/tcp closed ftp  
22/tcp closed ssh  
80/tcp open http  
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