Forensic Analysis Techniques

Digital Forensics Overview

Digital forensics involves collecting, preserving, analyzing, and presenting digital evidence for security investigations or legal proceedings. Forensic analysis reveals what happened, how it happened, who was responsible, and what data was affected.

Forensic Process

Forensic methodology includes identification of evidence sources, preservation through forensic imaging, analysis using specialized tools, documentation of findings, and reporting with chain of custody for legal admissibility.

Evidence Collection

Collect volatile data (memory, network connections) before non-volatile (disk, logs). Use forensic imaging for bit-by-bit copies, maintain chain of custody documentation, and preserve original evidence without modification.

Analysis Techniques

Forensic analysis includes timeline analysis reconstructing events, log correlation across systems, malware analysis, network forensics examining traffic, and memory forensics revealing runtime artifacts not available on disk.

Tools and Platforms

Forensic tools include EnCase and FTK for comprehensive analysis, Autopsy for open-source investigation, Volatility for memory analysis, and Wireshark for network forensics. Specialized tools address mobile, cloud, or specific evidence types.

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