AISI DFIR vs Sysmon for Linux: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
AISI DFIR is a commercial digital forensics and incident response tool by AISI. Sysmon for Linux 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 NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Mid-market and enterprise security teams that need to move fast on active incidents will find AISI DFIR's managed service model cuts through the hiring shortage for in-house forensics expertise. The Scout and Hunter tools automate evidence collection and persistence removal directly on affected systems, compressing response timelines that would otherwise stretch weeks. The caveat: this is a managed service first, so your team trades hands-on control for speed and specialist depth, making it less suitable for organizations that need full visibility and control over every forensic decision.
Linux security teams building detection pipelines or doing forensic analysis will get real value from Sysmon for Linux because its filtering rules catch adversary behavior that generic auditd misses, and it's free with 2,081 GitHub stars backing actual production deployments. The tool excels at the Detect function of NIST CSF 2.0, generating the granular process and network telemetry that makes hunting and incident response faster. Skip this if you need centralized management, GUI dashboards, or alert automation; Sysmon for Linux is logs-first and requires real parsing work downstream.
