Built on the Elastic Stack (Elasticsearch, Logstash, and Kibana), ElastiFlow is a modern, visually stunning solution.
Authors: M. Jonker, A. Sperotto, et al. Venue: IFIP/IEEE IM 2019 Link: Search for "NetFlow-free" on IEEE Xplore or Google Scholar – there is a short but excellent paper showing that flow export is unnecessary for detecting many attacks. netflow free