Cynux-Portscanner v1.1 is a simple and compact port scanner written in Perl which simply checks for open ports between 1-1024.
You can download it from the following link: https://packetstormsecurity.com/files/download/29489/cynux-portscanner.pl
Source: https://packetstormsecurity.com/files/29489/cynux-portscanner.pl.html