nskan v0.61b is a Network SKANner, a simple program to scan and analize a host/subnet.
You can download it from the following link: https://packetstormsecurity.com/files/download/14216/nskan-0.61b.tgz
Source: https://packetstormsecurity.com/files/14216/nskan-0.61b.tgz.html