AISI DFIR vs Viper: 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. Viper 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.
Malware analysts and incident responders who need to rapidly triage and organize thousands of samples will find Viper's plugin architecture invaluable; you can extend the framework to automate your lab's specific workflows instead of retrofitting commercial tools around them. The free, open-source model means zero licensing friction across your team and the ability to modify core functionality when vendor roadmaps don't align with your priorities. Skip Viper if your organization lacks in-house Python developers or expects vendor-backed technical support; you're maintaining and extending this yourself.
