Port scanner that can perform SYN, FIN, NULL, and XMAS scans with options to perform them very slowly and in decoy mode.
You can download it from the following link: https://packetstormsecurity.com/files/download/57018/Samotny_pi3.c
Source: https://packetstormsecurity.com/files/57018/Samotny_pi3.c.html