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Collaboration Model for Law Enforcement X-Ways Investigator (investigator version of X-Ways Forensics)

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Presentation on theme: "Collaboration Model for Law Enforcement X-Ways Investigator (investigator version of X-Ways Forensics)"— Presentation transcript:

1 Collaboration Model for Law Enforcement X-Ways Investigator (investigator version of X-Ways Forensics)

2 Overview of User Interfaces functional range/ complexity cost X-Ways Investigator half the price for investigators specialized in areas other than IT, e.g. accounting, building laws, money laundering, corruption, child pornography,... additional administrative precautions and further simplifications possible for computer specialists X-Ways Forensics normal price (competitors)

3 X-Ways Investigator: Important Features ability to create cases, assign evidence objects (media, images with any supported file system); optionally solely open containers, and also optionally only containers classified as secure (i.e. virus-free) differently specialized investigators may examine the same containers simultaneously, in their own cases, or write- protected in the case of another investigator logical search, search in index listing files from all evidence objects simultaneously, dynamic filters, sorting files, marking/selecting files viewing files, printing documents adding files to report tables, entering comments about files, evaluating files in ones area of expertise; report creation

4 Collaboration Model X-Ways Forensics Preparatory work performed with X-Ways Forensics, like imaging media, verify image integrity, assemble RAID systems, search deleted partitions,... run thorough search for deleted files, file signature check, include contents of archives and pictures embedded in documents, specially deal with encrypted files,... roughly filter out irrelevant data, like known ignorable files based on hash, exact duplicate files, with case-specific filters,... rought select potentially relevant files based on search hits (resulting e.g. from keywords provided by specialized investigators), based on file type filters or special hash sets of incriminating files,... roughly copy out relevant text from large binary files such as free space, swap files, etc. if found to be relevant because of search hits create a search index with adequate settings

5 Evidence File Container Preparatory work with X-Ways Forensics results in a with all potentially relevant files container An evidence file container retains the following for each file: file contents, file size filename in Unicode complete original path (optionally including evidence object name) deletion state (existent, deleted, renamed, moved,...) all original timestamps as available (creation, contents change, metadata change, last access, deletion) DOS/Windows attributes, Unix/Linux permissions/filemode compression and encryption state if applicable, classification as alternative data stream, resource, slack if applicable, classification as ficitious file (for free space, embedded pictures, thumbnails, partition gaps etc.) Arbitrary free-text comments for each individual file can also be passed on, e.g. the real name of a file owner, preliminary findings,...

6 Collaboration Model X-Ways Forensics for computer specialists containers-only version for investigators specialized in areas other than IT, e.g. accounting, building laws, money laundering, corruption, child pornography,.... container report cleared of viruses protected internal network prosecutor X-Ways Investigator

7 Installation Options Each investigator has an individual installation and configuration. Somewhat more administrative effort. Required e.g. for child pornography investigators who need to review CDs and DVDs without preparatory work by others. Several investigators share an installation on a server, optionally with an individual configuration. The network traffic is high when searching or hashing data. Several investigators share an installation on a terminal server, optionally with an individual configuration. The network traffic is reduced to screen data. Administrators are in charge of the installations, user accounts, and the assignment of access rights to case data and container files. Computer specialists provide the investigators with containers and search indexes.

8 Customizable User Interface Prevent media from being opened directly Prevent conventional images from being opened directy Prevent containers from being opened that are not classified as secure Disable functions to create containers Prevent non-picture files from being copied to the hard disk as part off the case report Disable functions work with the hash database Disable advanced options Prevent more complex commands from being invoked The user interface of X-Ways Investigator can be partially tailored to individual needs, i.e. further simplified, or reduced for security reasons.


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