hassh-utils is an Nmap NSE script that identifies hasshServer values of hosts running SSH servers. It then compares each calculated HASSH with a list of known HASSH values to attempt to fingerprint the software running on the remote host.
hassh-utils was written in 2018 by Adel Ka and the hasshdb lookup feature was developed by Daniel Roberson
https://github.com/0x4D31/hassh-utils