Mquery vs base64_substring: 2026 Comparison
Mquery is a free threat hunting tool. base64_substring is a free threat hunting tool. Compare features, ratings, integrations, and community reviews side by side to find the best threat hunting fit for your security stack.
CST VerdictBased on our analysis of available product data, here is our conclusion:
Malware analysts who need to pivot fast between Yara rules and sample sets will find Mquery's speed unmatched; it executes queries across millions of binaries in seconds where traditional approaches take minutes. The free tier with 437 GitHub stars signals active maintenance and real adoption among blue teams without procurement friction. Skip this if your team needs integrated sandbox detonation or collaborative case management; Mquery is a query engine, not a full threat intelligence platform.
Threat hunters who need to catch obfuscated malware samples will appreciate base64_substring's narrow focus: it generates YARA rules that account for base64's encoding variations, eliminating the manual work of writing rules that actually match what malware authors deploy. The tool is free and already battle-tested across 40 GitHub stars worth of security teams. This is not for buyers looking for a general YARA rule generator or those who need automation across multiple obfuscation techniques; base64_substring solves one problem exceptionally well and stays out of your way otherwise.
