CISA KEV Threat Intel Orchestrator: Automated Sigma Rule Generation from CISA KEV Catalog

This GitHub project presents a zero-touch automation pipeline that transforms newly added, weaponized CVEs from the CISA Known Exploited Vulnerabilities (KEV) catalog into production-ready Sigma detection rules. The workflow, scheduled to run weekly, pulls the live CISA KEV catalog, filters for new entries, and uses Google Gemini with structured prompts to generate tailored Sigma rules (including specific product targeting, appropriate Sysmon EventIDs, and MITRE ATT&CK mapping). It then logs each processed CVE to a Google Sheet for audit purposes and emails an analyst briefing. The author reports this reduces manual effort from 4-6 hours per CVE to zero minutes. The repository includes the n8n workflow, prompt templates, and sample outputs. Future plans include auto-deploying rules to SIEMs and automated testing. 

https://github.com/manishrawat21/Cisa-KEV-Threat-Intel-Orchestrator

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