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This is the '''Forensics Wiki''', a [http://creativecommons.org/licenses/by-sa/2.5/ Creative Commons]-licensed [http://en.wikipedia.org/wiki/Wiki wiki] devoted to information about [[digital forensics]] (also known as computer forensics). We currently list a total of [[Special:Allpages|{{NUMBEROFARTICLES}}]] pages.
 
This is the '''Forensics Wiki''', a [http://creativecommons.org/licenses/by-sa/2.5/ Creative Commons]-licensed [http://en.wikipedia.org/wiki/Wiki wiki] devoted to information about [[digital forensics]] (also known as computer forensics). We currently list a total of [[Special:Allpages|{{NUMBEROFARTICLES}}]] pages.
 
    
 
    
Much of [[computer forensics]] is focused on the [[tools]] and [[techniques]] used by [[investigator]]s, but there are also a number of important [[papers]], [[people]], and [[organizations]] involved. Many of those organizations sponsor [[conferences]] throughout the year and around the world. You may also wish to examine the popular [[journals]] and some special [[reports]].
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Much of [[computer forensics]] is focused on the [[tools]] and [[techniques]] used by [[investigator]]s, but there are also a number of important [[papers]], [[people]], and [[organizations]] involved. Many of those organizations sponsor [[Upcoming_events|conferences]] throughout the year and around the world. You may also wish to examine the popular [[journals]] and some special [[reports]].
 
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</div>   
  
  
 
==WIKI NEWS==
 
==WIKI NEWS==
2012-feb-25: We continue to have problems with our hosting provider and are in the process of identifying a new one. Thank you for your patience.
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2013-05-15: You can now subscribe to Forensics Wiki Recent Changes with the [[ForensicsWiki FeedBurner Feed]]
  
 
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{| width="100%"
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<h2 style="margin:0; background-color:#ffff33; font-size:120%; font-weight:bold; border:1px solid #afa3bf; text-align:left; color:#000; padding-left:0.4em; padding-top:0.2em; padding-bottom:0.2em;"> Featured Forensic Research </h2>
 
<h2 style="margin:0; background-color:#ffff33; font-size:120%; font-weight:bold; border:1px solid #afa3bf; text-align:left; color:#000; padding-left:0.4em; padding-top:0.2em; padding-bottom:0.2em;"> Featured Forensic Research </h2>
  
<small>Mar 2012</small>
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<small>May 2014</small>
 
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<bibtex>
 
<bibtex>
@inproceedings{Walls:2011a,
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@inproceedings{Hurley:2013:MAC:2488388.2488444,
Audio_Url = {http://prisms.cs.umass.edu/brian/pubs/Walls.hotsec.2011.mp3},
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author = {Hurley, Ryan and Prusty, Swagatika and Soroush, Hamed and Walls, Robert J. and Albrecht, Jeannie and Cecchet, Emmanuel and Levine, Brian Neil and Liberatore, Marc and Lynn, Brian and Wolak, Janis},
Author = { Robert J. Walls and Brian Neil Levine and Marc Liberatore and Clay Shields},
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title = {Measurement and Analysis of Child Pornography Trafficking on P2P Networks},
Booktitle = {Proc.\ USENIX Workshop on Hot Topics in Security (HotSec)},
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booktitle = {Proceedings of the 22Nd International Conference on World Wide Web},
Keywords = {forensics; security},
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series = {WWW '13},
Month = {August},
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year = {2013},
Slides_Url = {http://prisms.cs.umass.edu/brian/pubs/rjwalls.hotsec.2011.slides.pdf},
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isbn = {978-1-4503-2035-1},
Sponsors = {CNS-1018615, CNS-0905349, DUE-0830876, 2008-CE-CXK005},
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location = {Rio de Janeiro, Brazil},
Title = {{Effective Digital Forensics Research is Investigator-Centric}},
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pages = {631--642},
Url = {http://prisms.cs.umass.edu/brian/pubs/Walls.hotsec.2011.pdf},
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numpages = {12},
Video_Url = {http://prisms.cs.umass.edu/brian/pubs/Walls.hotsec.2011.mp4},
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url = {http://dl.acm.org/citation.cfm?id=2488388.2488444},
Year = {2011},
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acmid = {2488444},
Bdsk-Url-1 = {http://prisms.cs.umass.edu/brian/pubs/Walls.hotsec.2011.pdf}}
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publisher = {International World Wide Web Conferences Steering Committee},
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address = {Republic and Canton of Geneva, Switzerland},
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keywords = {digital forensics, forensic triage},
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}  
 
</bibtex>
 
</bibtex>
Many technical mechanisms across computer security for attribution, identification, and classification are neither sufficient nor necessary for forensically valid digital investigations; yet they are often claimed as useful or necessary. Similarly, when forensic research is evaluated using the viewpoints held by computer security venues, the challenges, constraints, and usefulness of the work is often misjudged. In this paper, we point out many key aspects of digital forensics with the goal of ensuring that research seeking to advance the discipline will have the highest possible adoption rate by practitioners. We enumerate general legal and practical constraints placed on forensic investigators that set the field apart. We point out the assumptions, often limited or incorrect, made about forensics in past work, and discuss how these assumptions limit the impact of contributions.
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Peer-to-peer networks are the most popular mechanism for the criminal acquisition and distribution of child pornography (CP). In this paper, we examine observations of peers sharing known CP on the eMule and Gnutella networks, which were collected by law enforcement using forensic tools that we developed. We characterize a year's worth of network activity and evaluate different strategies for prioritizing investigators' limited resources. The highest impact research in criminal forensics works within, and is evaluated under, the constraints and goals of investigations. We follow that principle, rather than presenting a set of isolated, exploratory characterizations of users.
 
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* [https://www.usenix.org/conference/hotsec11/effective-digital-forensics-research-investigator-centric Usenix Presentation]
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* [http://prisms.cs.umass.edu/brian/pubs/rjwalls.hotsec.2011.slides.pdf Slides]
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* [http://prisms.cs.umass.edu/brian/pubs/Walls.hotsec.2011.pdf paper]
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 +
First, we focus on strategies for reducing the number of CP files available on the network by removing a minimal number of peers. We present a metric for peer removal that is more effective than simply selecting peers with the largest libraries or the most days online. Second, we characterize six aggressive peer subgroups, including: peers using Tor, peers that bridge multiple p2p networks, and the top 10% of peers contributing to file availability. We find that these subgroups are more active in their trafficking, having more known CP and more uptime, than the average peer. Finally, while in theory Tor presents a challenge to investigators, we observe that in practice offenders use Tor inconsistently. Over 90% of regular Tor users send traffic from a non-Tor IP at least once after first using Tor.
 
(See also [[Past Selected Articles]])
 
(See also [[Past Selected Articles]])
  
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* '''[[Tools#Disk_Analysis_Tools|Disk Analysis]]''': [[EnCase]], [[SMART]], [[Sleuthkit]], [[foremost]], [[Scalpel]], [[frag_find]]...
 
* '''[[Tools#Disk_Analysis_Tools|Disk Analysis]]''': [[EnCase]], [[SMART]], [[Sleuthkit]], [[foremost]], [[Scalpel]], [[frag_find]]...
 
* '''[[Tools#Forensics_Live_CDs|Live CDs]]''': [[DEFT Linux]], [[Helix]] ([[Helix3 Pro|Pro]]), [[FCCU Gnu/Linux Boot CD]], [[Knoppix STD]], ...
 
* '''[[Tools#Forensics_Live_CDs|Live CDs]]''': [[DEFT Linux]], [[Helix]] ([[Helix3 Pro|Pro]]), [[FCCU Gnu/Linux Boot CD]], [[Knoppix STD]], ...
* '''[[Tools:Document Metadata Extraction|Metadata Extraction]]''': [[wvWare]], [[jhead]], [[Hachoir | hachoir-metadata]], ...
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* '''[[Tools:Document Metadata Extraction|Metadata Extraction]]''': [[wvWare]], [[jhead]], [[Hachoir | hachoir-metadata]], [[Photo Investigator]]...
 
* '''[[Tools:File Analysis|File Analysis]]''': [[file]], [[ldd]], [[ltrace]], [[strace]], [[strings]], ...
 
* '''[[Tools:File Analysis|File Analysis]]''': [[file]], [[ldd]], [[ltrace]], [[strace]], [[strings]], ...
 
* '''[[Tools:Network_Forensics|Network Forensics]]''': [[Snort]],  [[Wireshark]], [[Kismet]],  [[NetworkMiner]]...
 
* '''[[Tools:Network_Forensics|Network Forensics]]''': [[Snort]],  [[Wireshark]], [[Kismet]],  [[NetworkMiner]]...

Revision as of 12:13, 21 April 2014

This is the Forensics Wiki, a Creative Commons-licensed wiki devoted to information about digital forensics (also known as computer forensics). We currently list a total of 719 pages.

Much of computer forensics is focused on the tools and techniques used by investigators, but there are also a number of important papers, people, and organizations involved. Many of those organizations sponsor conferences throughout the year and around the world. You may also wish to examine the popular journals and some special reports.


WIKI NEWS

2013-05-15: You can now subscribe to Forensics Wiki Recent Changes with the ForensicsWiki FeedBurner Feed

Featured Forensic Research

May 2014

Hurley, Ryan, Prusty, Swagatika, Soroush, Hamed, Walls, Robert J., Albrecht, Jeannie, Cecchet, Emmanuel, Levine, Brian Neil, Liberatore, Marc, Lynn, Brian, Wolak, Janis - Measurement and Analysis of Child Pornography Trafficking on P2P Networks
Proceedings of the 22Nd International Conference on World Wide Web pp. 631--642, Republic and Canton of Geneva, Switzerland,2013
http://dl.acm.org/citation.cfm?id=2488388.2488444
Bibtex
Author : Hurley, Ryan, Prusty, Swagatika, Soroush, Hamed, Walls, Robert J., Albrecht, Jeannie, Cecchet, Emmanuel, Levine, Brian Neil, Liberatore, Marc, Lynn, Brian, Wolak, Janis
Title : Measurement and Analysis of Child Pornography Trafficking on P2P Networks
In : Proceedings of the 22Nd International Conference on World Wide Web -
Address : Republic and Canton of Geneva, Switzerland
Date : 2013

Peer-to-peer networks are the most popular mechanism for the criminal acquisition and distribution of child pornography (CP). In this paper, we examine observations of peers sharing known CP on the eMule and Gnutella networks, which were collected by law enforcement using forensic tools that we developed. We characterize a year's worth of network activity and evaluate different strategies for prioritizing investigators' limited resources. The highest impact research in criminal forensics works within, and is evaluated under, the constraints and goals of investigations. We follow that principle, rather than presenting a set of isolated, exploratory characterizations of users.

First, we focus on strategies for reducing the number of CP files available on the network by removing a minimal number of peers. We present a metric for peer removal that is more effective than simply selecting peers with the largest libraries or the most days online. Second, we characterize six aggressive peer subgroups, including: peers using Tor, peers that bridge multiple p2p networks, and the top 10% of peers contributing to file availability. We find that these subgroups are more active in their trafficking, having more known CP and more uptime, than the average peer. Finally, while in theory Tor presents a challenge to investigators, we observe that in practice offenders use Tor inconsistently. Over 90% of regular Tor users send traffic from a non-Tor IP at least once after first using Tor. (See also Past Selected Articles)

Featured Article

Forensic Linux Live CD issues
Forensic Linux Live CD distributions are widely used during computer forensic investigations. Currently, many vendors of such Live CD distributions state that their Linux do not modify the contents of hard drives or employ "write protection." Testing indicates that this may not always be the case. Read More...


Topics



You can help! We have a list of articles that need to be expanded. If you know anything about any of these topics, please feel free to chip in.