OSSEC

Atomic OSSEC is commerical-grade OSSEC and is an IDS and XDR all in one. Atomic OSSEC provides leading real-time file integrity monitoring (FIM) software and support, which is a critical function for security and compliance. It provides threat intel, active response, compliance auditing and reporting, visualization dashboards and much more.Learn more.

1. https://www.ossec.net/ossec-downloads/