Top 10 nsm open source projects

Suricata git repository maintained by the OISF

Arkime (formerly Moloch) is an open source, large scale, full packet capturing, indexing, and database system.

Zeek is a powerful network analysis framework that is much different from the typical IDS you may know.

Security Onion 16.04 - Linux distro for threat hunting, enterprise security monitoring, and log management

Mapping NSM rules to MITRE ATT&CK

A Suricata Docker image.

Network Service Mesh examples repo

Threat Hunting with ELK Workshop (InfoSecWorld 2017)

Documentation for Zeek

Useful resources for Zeek(https://zeek.org/) (Bro(http://bro.org/))