lw-yara vs ocaml-yara by Elastic: 2026 Comparison
lw-yara is a free digital forensics and incident response tool. ocaml-yara by Elastic is a free digital forensics and incident response tool. Compare features, ratings, integrations, and community reviews side by side to find the best digital forensics and incident response fit for your security stack.
CST VerdictBased on our analysis of available product data, here is our conclusion:
Forensics teams and incident responders hunting PHP shells in compromised web applications should use lw-yara for its laser focus on webserver malware detection; the 107 GitHub stars and active maintenance show this ruleset actually gets used in post-breach investigations where generic YARA rules fall short. The free pricing means you can bake it into your DFIR playbooks without budget friction. Skip this if you need detection across the full application stack or run primarily on non-PHP infrastructure; lw-yara does one thing and won't help you find .NET backdoors or kernel rootkits.
OCaml developers embedding malware detection into custom security tools should use ocaml-yara for direct access to YARA's pattern-matching engine without language boundary overhead. The bindings are maintained by Elastic and free, which matters for teams building detection pipelines that need to call YARA thousands of times per second without spawning subprocess overhead. This is a poor fit for teams expecting a polished UI or integration with third-party threat feeds; ocaml-yara is a low-level library, not a scanning platform.
