BSides Tallinn 2026

(FULL) Anti-Forensics (and Anti-Anti-Forensics) Techniques for Incident Responders (ALL SPOTS FULL)

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A full-spectrum dive into anti-forensics across Windows and Linux (with a tad of MacOS, if time permits), centered on real incidents and modern attacker behavior. The course walks through classic log wiping, deeper filesystem tricks, PowerShell, timestomping, sandbox artifacts, memory-only execution, endpoint solution blind spots, and advanced Linux log manipulation.

Each technique is paired with detection logic, weaknesses in attacker tradecraft, and practical forensic recovery paths. The material emphasizes hands-on analysis, including MFT/MSRUM/USN artifacts, ETW traces, VHDX extraction, /proc-based investigation, and highlights new research and tooling that shape current offensive and defensive strategies.

This is an excerpt from my full 2-3 day training I offer under my brand malmium.com (https://malmium.com/training-anti-forensics.html)

Stephan Berger

Stephan Berger has over a decade of experience in cybersecurity. Currently working with the Swiss-based company InfoGuard, Stephan investigates breaches and hacked networks as Head of Investigation of the Incident Response team. An avid Twitter user under the handle @malmoeb, he actively shares insights on cybersecurity trends and developments. Stephan also authors the blog DFIR.ch, where he provides in-depth analysis and commentary on digital forensics and incident response. Stephan has spoken at numerous conferences, sharing his expertise with audiences worldwide.