Difference between pages "Research Topics" and "Windows Application Compatibility"

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Interested in doing research in computer forensics? Looking for a master's topic, or just some ideas for a research paper? Here is our list. Please feel free to add your own ideas.
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{{expand}}
  
==Short-Term Engineering Projects==
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== sysmain.sdb ==
These projects would make a nice master's thesis or the start of a PhD.
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System compatibility database.
  
; Physical layer access to flash storage.
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== RecentFileCache.bcf ==
: Gain access to the physical layer of SD or USB flash storage device. This will require reverse-engineering the proprietary APIs or gaining access to proprietary information from the manufacturers. Use these APIs to demonstrate the feasibility of recovering residual data that has been overwritten at the logical layer but which is still present at the physical layer.
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In Windows 7 the RecentFileCache.bcf file is stored in:
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<pre>
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C:\Windows\AppCompat\Programs\
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</pre>
  
===SleuthKit Enhancements===
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== Amcache.hve ==
[[SleuthKit]] is the popular open-source system for forensics and data recovery.
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The Amcache.hve file is a [[Windows NT Registry File (REGF)]].
* Add support for a new file system:
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** The [[YAFFS]] [[flash file system]]. (YAFFS2 is currently used on the Google G1 phone.)
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** The [[JFFS2]] [[flash file system]]. (JFFS2 is currently used on the One Laptop Per Child laptop.)
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** [[XFAT]], Microsoft's new FAT file system.
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** [[EXT4]]
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* Enhance support for an existing file system:
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** Report the physical location on disk of compressed files.
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** Add support for NTFS encrypted files (EFS)
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** Extend SleuthKit's implementation of NTFS to cover Transaction NTFS (TxF)
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* Write a FUSE-based mounter for SleuthKit, so that disk images can be forensically mounted using TSK.  
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===Timeline Analysis===
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In Windows 8 the Amcache.hve file is stored in:
; Timeline Visualization and Analysis
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<pre>
: Write a new timeline viewer that supports Logfile fusion (with offsets) and provides the ability to view the logfile in the frequency domain.
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C:\Windows\AppCompat\Programs\
; Changed Clocks
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</pre>
: Detect a system that has had its clock changed.
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==Research Areas==
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== AppCompatCache ==
These are research areas that could easily grow into a PhD thesis.
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In Windows 2000 and XP:
; Stream-based Forensics
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<pre>
: Process the entire disk with one pass to minimize seek time.  (You may find it necessary to do a quick metadata scan first.)
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Key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\AppCompatibility
; Stegnography Detection (general purpose)
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</pre>
: Detect the use of stegnography by through the analysis of file examplars and specifications.
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; Sanitization Detection
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: Detect and diagnose sanitization attempts.
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; Compressed Data Reconstruction
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: Reconstruct decompressed data from a GZIP file after the first 1K has been removed.
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;Evidence Falsification Detection
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: Automatically detect falsified digital evidence through the use of inconsistency in file system allocations, application data allocation, and log file analysis.
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; Visualization of data/information in digital forensic context
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==Correlation==
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In Windows 2003 and later:
* Logfile correlation
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<pre>
* Document identity identification
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Key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\AppCompatCache
* Correlation between stored data and intercept data
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</pre>
* Online Social Network Analysis
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** Find and download in a forensically secure manner all of the information in a social network (e.g. Facebook, LinkedIn, etc.) associated with a targeted individual.
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** Determine who is searching for a targeted individual. This might be done with a honeypot, or documents with a tracking device in them, or some kind of covert Facebook App.
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* Automated grouping/annotation of low-level events, e.g. access-time, log-file entry, to higher-level events, e.g. program start, login
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==Programming Projects==
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== External Links ==
===File Visualization===
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* [http://technet.microsoft.com/en-us/library/dd837644(v=ws.10).aspx Technet: Understanding Shims], by [[Microsoft]]
Write a program that visualizes the contents of a file, sort of like hexedit, but with other features:
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* [http://msdn.microsoft.com/en-us/library/bb432182(v=vs.85).aspx MSDN: Application Compatibility Database], by [[Microsoft]]
* Automatically pull out the strings
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* [http://www.alex-ionescu.com/?p=39 Secrets of the Application Compatilibity Database (SDB) – Part 1], by [[Alex Ionescu]], May 20, 2007
* Show histogram
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* [http://www.alex-ionescu.com/?p=40 Secrets of the Application Compatilibity Database (SDB) – Part 2], by [[Alex Ionescu]], May 21, 2007
* Detect crypto and/or stenography.
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* [http://www.alex-ionescu.com/?p=41 Secrets of the Application Compatilibity Database (SDB) – Part 3], by [[Alex Ionescu]], May 26, 2007
I would write the program in java with a plug-in architecture.
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* [http://recxltd.blogspot.com/2012/04/windows-appcompat-research-notes-part-1.html Windows AppCompat Research Notes - Part 1], by Ollie, 28 April 2012
 
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* [http://recxltd.blogspot.com/2012/05/windows-appcompat-research-notes-part-2.html Windows AppCompat Research Notes - Part 2], by Ollie, 4 May 2012
===Carving===
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* [https://dl.mandiant.com/EE/library/Whitepaper_ShimCacheParser.pdf Leveraging the Application Compatibility Cache in Forensic Investigations], by [[Andrew Davis]], May 4, 2012
Write [[Carver 2.0 Planning Page | Carver 2.0]]
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* [http://journeyintoir.blogspot.ch/2013/12/revealing-recentfilecachebcf-file.html Revealing the RecentFileCache.bcf File], by [[Corey Harrell]], December 2, 2013
 
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* [http://journeyintoir.blogspot.ch/2013/12/revealing-program-compatibility.html Revealing Program Compatibility Assistant HKCU AppCompatFlags Registry Keys], by [[Corey Harrell]], December 17, 2013
Write a generic NTFS compressed carver
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* [http://journeyintoir.blogspot.ch/2014/04/triaging-with-recentfilecachebcf-file.html Triaging with the RecentFileCache.bcf File], by [[Corey Harrell]], April 21, 2014
 
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===fiwalk Enhancements===
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* Rewrite the metadata extraction system.
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* Extend [[fiwalk]] to report the NTFS "inodes."
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==File Format analysis==
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Analysis of file format for forensic artefacts; could be combined with programming to build code that parses the format.
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* Continue work on the [[Extensible Storage Engine (ESE) Database File (EDB) format]] in regard to
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** Fill in the missing information about older ESE databases
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** Exchange EDB (MAPI database), STM
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** Active Directory (Active Directory working document available on request)
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* Continue work on the [[Notes Storage Facility (NSF)]] (code available on request)
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* Microsoft SQL Server databases
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__NOTOC__
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Latest revision as of 01:06, 9 July 2014

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Please help to improve this article by expanding it.
Further information might be found on the discussion page.

sysmain.sdb

System compatibility database.

RecentFileCache.bcf

In Windows 7 the RecentFileCache.bcf file is stored in:

C:\Windows\AppCompat\Programs\

Amcache.hve

The Amcache.hve file is a Windows NT Registry File (REGF).

In Windows 8 the Amcache.hve file is stored in:

C:\Windows\AppCompat\Programs\

AppCompatCache

In Windows 2000 and XP:

Key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\AppCompatibility

In Windows 2003 and later:

Key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\AppCompatCache

External Links