ConventionEngine vs Sublime Security Sublime Rules: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros and cons, compared head to head.
ConventionEngine is a free detection engineering tool. Sublime Security Sublime Rules is a free detection engineering tool by Sublime Security. Compare features, ratings, integrations, and community reviews side by side to find the best detection engineering fit for your security stack. Independent and vendor-neutral: our scores and rankings are earned, never bought — sponsored placement is always labeled.
CST VerdictShort answer
Threat hunters working with Windows malware samples will find ConventionEngine useful for fast-path filtering of PE files before deeper analysis; PDB path inspection catches lazy packers and stolen toolchains that slip past signature-based detection. The tool is free and maintained on GitHub with a clear rule set that requires no licensing overhead. Skip this if you need automated hunting at scale or integration with your EDR; ConventionEngine works best as a manual triage layer for analysts who already have samples in hand. Security teams running Microsoft 365 or Google Workspace who need to stop BEC and credential phishing without adding another paid platform should start with Sublime Security Sublime Rules. The detection logic is built on Message Query Language rules that actually catch HTML smuggling and OneNote malware where signature-based filters fail, and you get DLP discovery rules included at zero cost. Skip this if your org needs automated response or investigation workflows; Sublime Rules is detection-only and assumes you have a process to act on what it finds.
Based on our analysis of core features, here is our conclusion:
