THOR Lite vs AISI DFIR: 2026 Comparison
THOR Lite is a free digital forensics and incident response tool. AISI DFIR is a commercial digital forensics and incident response tool by AISI. 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:
Security teams that need to hunt for known malware and suspicious artifacts across Windows, Linux, and macOS without licensing friction should start with THOR Lite. It scans against YARA rules and IOC databases at speed without agent deployment, making it ideal for incident response workflows where you're chasing specific indicators rather than building continuous monitoring. Skip this if you need behavioral detection or post-compromise forensics beyond pattern matching; THOR Lite is a scanner, not a behavioral engine.
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.
