Smap - a drop-in replacement for NMAP that powered by Shodan. It is a replica of Nmap which uses shodan.io's free API for port scanning. It takes similar cmdline arguments as Nmap and produces the same output which makes it a drop-in replacement for Nmap.
Smap is super fast since it simple fetches existent port data from shodan.io. It can be used as:
- a super fast port scanner (200 hosts per second)
- vulnerability detection (services/version fingerprinting)
- reconnaissance on most common ports (limited to top 1237)
- connection-less or passive-scan to the target
Most important is, it doesn't require any account/api key.
Links:
- https://github.com/s0md3v/Smap
- https://www.kitploit.com/2022/04/smap-drop-in-replacement-for-nmap.html