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CPT 499C lecture 16 Internet Artifacts

CPT 499C lecture 16 Internet Artifacts - DEPARTMENT OF...

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Internet Artifacts Slide 1 DEPARTMENT OF COMPUTER & INFORMATION TECHNOLOGY Introduction to Internet Artifacts
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Internet Artifacts Slide 2 DEPARTMENT OF COMPUTER & INFORMATION TECHNOLOGY Learning Objectives • At the end of this discussion, you will be able to: – Identify digital artifacts associated with Internet activity – Describe the evidentiary value of internet artifacts – Identify situations where evidence based on internet activity is time-critical
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Internet Artifacts Slide 3 DEPARTMENT OF COMPUTER & INFORMATION TECHNOLOGY Types of activity • Web browsing • E-mail • IM / IRC sessions
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Internet Artifacts Slide 4 DEPARTMENT OF COMPUTER & INFORMATION TECHNOLOGY Browser artifacts • Remember: There are many web browsing applications – Each application will store information in different location • For this class, we will limit discussion to Internet explorer
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Internet Artifacts Slide 5 DEPARTMENT OF COMPUTER & INFORMATION TECHNOLOGY Browser artifacts • Cookies • Index.dat * – More than one index.dat – We want the one in the history.ie5 folder – MORE on index.dat to follow… • Temporary Internet Files
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Internet Artifacts Slide 6 DEPARTMENT OF COMPUTER & INFORMATION TECHNOLOGY Cookies • Put on hard drive by the website – Format of data variable, unlikely to be useful • Cookie filename is often useful • Cookie file date and time info may help establish chronology
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Internet Artifacts Slide 7 DEPARTMENT OF COMPUTER & INFORMATION TECHNOLOGY Index.dat • Often the most valuable item on the drive • Itemized, dated record of: – Website access – Web-based e-mail – File Downloads – Search terms – Others?
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Internet Artifacts Slide 8 DEPARTMENT OF COMPUTER & INFORMATION TECHNOLOGY Index.dat - Considerations • Can be “cleaned” • Affected by some variables – Version of Internet Explorer – Browser settings – Add-ins • Does not directly prove intent – User clicked on an innocuous link – Pop-ups & redirects
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Internet Artifacts Slide 9 DEPARTMENT OF COMPUTER & INFORMATION TECHNOLOGY Index.dat - Considerations • Not directly viewable • Need a third-party tool to view data • Many free tools available
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Internet Artifacts Slide 10 DEPARTMENT OF COMPUTER & INFORMATION TECHNOLOGY Index.dat – Simple access ============================================= URL : http://www.mykitties.com Title : New Page 1 Hits : 17 Modified Date : 10/4/2005 9:05:35 PM Expiration Date : 10/30/2005 9:05:36 PM User Name : twedge
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