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An Introduction to Computer Forensics

An Introduction to Computer Forensics. Jim Lindsey Western Kentucky University September 28, 2007. What are we talking about?. Forensic …. What are we talking about?. Forensic Science is the use of science to investigate and establish facts in criminal and civil cases.

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An Introduction to Computer Forensics

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  1. An Introduction to Computer Forensics Jim Lindsey Western Kentucky University September 28, 2007

  2. What are we talking about? • Forensic …

  3. What are we talking about? • Forensic Science is the use of science to investigate and establish facts in criminal and civil cases.

  4. What are we talking about? • Computer Forensics is the discovery, collection, and analysis of evidence found on computers and networks.

  5. Interdisciplinary Field Computer Professional Investigator Computer Forensics • Forensic Examiners have to know about computers, how to perform an investigation and about the law. • Your job is to simply find the facts! Legal Professional

  6. Why should I care? • Computers and the Internet are the fastest growing technologies used in crime (criminal and civil). • BTK and Scott Peterson Murder Cases • Enron and Worldcom Cases • Human Resource Matters • ID Theft and Divorce Matters

  7. Deleted Files

  8. The Computer Forensic Process • Gather the materials to be analyzed. • Must be done legally! • Establish the chain of custody. • Get all needed devices. • Preserve the media. • Write blockers • Bit for bit images • Extract the evidence. • What is relevant to the case? • Again, must be done legally!

  9. The Computer Forensic Process • Analyze computer media. • Forensic HW • Forensic SW • Document the results. • Report your findings! • Consider the audience that will read the report!

  10. Computer Forensics At Work • Deleted Files • Tracking Packet Routes • Analyzing Network Traffic • Analyzing Mobile Devices • Analyzing ISP Logs • Analyzing Chat Logs • Analyzing a Packet Trace

  11. Summary • Defined computer forensics • Established why it is important for you to know about the topic • Described the computer forensic process • Looked at examples of tasks performed by computer forensic examiners

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