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Network Forensics: Tools, Challenges, and Future Goals

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Presentation Transcript

  1. Network Forensics

  2. What is it? • Remote data acquisition (disk capture) • Remote collection of live systems (memory) • Traffic acquisition (cables and devices) • Multiple examiners viewing single source

  3. Technical • Current tools don’t cut it • Validation – integrity of data • Multiple machine functions (network devices) • Traffic Capture (non TCP/UDP) • Data loss due to high traffic volumes • Content ID and analysis (VoIP, IM) • Traffic pattern recognition • Data reduction • Attribution (IP forgery, onion routing) • False Positives • Dynamic systems • Speed and minimal system impact is a priority

  4. Legal • Privacy Issues • Commingling of data • Jurisdiction • Interstate Warrants

  5. Policy • Banners and policy statements • Logging requirements • Third party tools to meet our needs? • Pressure device vendors? • Bill of rights • Balance need for attribution with individual rights

  6. Short Term Goals • Define network forensics • Tools • Capture • Analysis (data normalization, visualization and mining) • Attribution • Process • Best practices • Guidelines for various devices/situations

  7. Long Term Goals • Persuade Industry Provide Monitoring Ability • OS development to enable capture of volatile data • OS development to minimize commingling

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