Open Source
https://github.com/ANSSI-FR/SecuML
https://anssi-fr.github.io/SecuML/
https://github.com/MISP/PyMISP
https://github.com/Cyb3rWard0g/ThreatHunter-Playbook
https://github.com/0x4D31/awesome-threat-detection
https://github.com/stamparm/maltrail
https://github.com/DefensePointSecurity/threat_note
https://github.com/CIRCL/AIL-framework
https://github.com/Coalfire-Research/Red-Baron
https://github.com/nicolasriverocorvalan/cloud-sniper
https://github.com/outflanknl/RedELK
https://github.com/Cyb3rWard0g/HELK
https://github.com/rastrea2r/rastrea2r
https://github.com/yeti-platform/yeti
Reference
https://arnaudloos.com/2019/open-source-sirp-overview/
https://github.com/POTATOES-BoilEm-MashEm-StickEm-inAStew/SecurityOperationsCenter
https://github.com/Hestat/soc-threat-hunting
https://www.owasp.org/index.php/OWASP_Security_Operations_Center_(SOC)_Framework_Project
https://github.com/jmscory/Security-Tool-Chest
https://www.sath.com/how-to-setup-soc-using-open-source-tools/
https://www.exabeam.com/siem/7-open-source-siems-features-vs-limitations/
http://prasannamundas.com/share/opensource-tools-for-security-operations/
https://laskowski-tech.com/2018/07/11/no-fuss-foss/