syn.pl – tcpdump script which detects network activity – designed specifically to detect new “stealth and undetectable” nmap v2.00-2.01 scans (TCP, SYN, FIN, Frag, Xmas, Null, and UDP, etc ).

tcpdump script which detects network activity – designed specifically to detect new “stealth and undetectable” nmap v2.00-2.01 scans (TCP, SYN, FIN, Frag, Xmas, Null, and UDP, etc ).

You can download it from the following link: https://packetstormsecurity.com/files/download/12848/syn.pl

Source: https://packetstormsecurity.com/files/12848/syn.pl.html