Custom Activities Repository vs zeek paraglob: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
Custom Activities Repository is a free security orchestration automation and response tool. zeek paraglob is a free security orchestration automation and response tool by Zeek. Compare features, ratings, integrations, and community reviews side by side to find the best security orchestration automation and response fit for your security stack.
CST VerdictBased on our analysis of core features, integrations, here is our conclusion:
Teams building Ayehu NG automation workflows who need activities beyond the platform's built-in library should start here; the community-driven repository lets you extend orchestration without writing from scratch or waiting on vendor roadmaps. Seven GitHub stars and free distribution mean adoption is thin, so expect limited pre-built activities and sparse documentation compared to commercial SOAR marketplaces. Skip this if your team lacks Python or scripting skills to adapt community contributions to your environment, or if you need vendor-backed support guarantees for production automations.
Security teams running Zeek IDS/IPS deployments need Zeek Paraglob when string matching against thousands of threat indicators becomes a CPU bottleneck. Its Aho-Corasick engine handles orders of magnitude more patterns per query than naive regex, and the C++ implementation keeps overhead minimal on sensor boxes already straining under traffic volume. Skip this if your detection logic doesn't rely on bulk pattern matching or if you're not deep enough in Zeek to write custom scripts; it's a library for practitioners, not a GUI tool.
