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File smtp-strangeport

Script types: portrule
Categories: malware, safe
Download: http://nmap.org/svn/scripts/smtp-strangeport.nse

User Summary

Checks if SMTP is running on a non-standard port.

This may indicate that crackers or script kiddies have set up a backdoor on the system to send spam or control the machine.

Example Usage

nmap -sV --script=smtp-strangeport <target>

Script Output

22/tcp  open   smtp
|_ smtp-strangeport: Mail server on unusual port: possible malware

Author: Diman Todorov

License: Same as Nmap--See http://nmap.org/book/man-legal.html

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