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) (see [[NTFS]])
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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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* Rewrite '''sorter''' in C++ to make it faster and more flexible.
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===EnCase Enhancement===
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In Windows 8 the Amcache.hve file is stored in:
* Develop an EnScript that allows you to script EnCase from Python. (You can do this because EnScripts can run arbitrary DLLs. The EnScript calls the DLL. Each "return" from the DLL is a specific EnCase command to execute. The EnScript then re-enters the DLL.)
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<pre>
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C:\Windows\AppCompat\Programs\
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</pre>
  
===Timeline Analysis===
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== AppCompatCache ==
; Timeline Visualization and Analysis
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In Windows 2000 and XP:
: 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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<pre>
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Key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\AppCompatibility
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</pre>
  
==Research Areas==
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In Windows 2003 and later:
These are research areas that could easily grow into a PhD thesis.
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<pre>
; Stream-based Forensics
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Key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\AppCompatCache
: 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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</pre>
; Stegnography Detection (general purpose)
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: 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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: SWOT of current visualization techniques in forensic tools; improvements; feasibility of 3D representation;
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==Correlation==
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== External Links ==
* Logfile correlation
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* [http://technet.microsoft.com/en-us/library/dd837644(v=ws.10).aspx Technet: Understanding Shims], by [[Microsoft]]
* Document identity identification
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* [http://msdn.microsoft.com/en-us/library/bb432182(v=vs.85).aspx MSDN: Application Compatibility Database], by [[Microsoft]]
* Correlation between stored data and intercept data
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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
* Online Social Network Analysis
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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
** 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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* [http://www.alex-ionescu.com/?p=41 Secrets of the Application Compatilibity Database (SDB) – Part 3], by [[Alex Ionescu]], May 26, 2007
** 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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* [http://recxltd.blogspot.com/2012/04/windows-appcompat-research-notes-part-1.html Windows AppCompat Research Notes - Part 1], by Ollie, 28 April 2012
* 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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* [http://recxltd.blogspot.com/2012/05/windows-appcompat-research-notes-part-2.html Windows AppCompat Research Notes - Part 2], by Ollie, 4 May 2012
 
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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
==Programming Projects==
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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
===File Visualization===
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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 program that visualizes the contents of a file, sort of like hexedit, but with other features:
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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
* Automatically pull out the strings
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* Show histogram
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* Detect crypto and/or stenography.
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I would write the program in java with a plug-in architecture.
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===Carving===
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* Write [[Carver 2.0 Planning Page | Carver 2.0]]
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* Create a method to detect NTFS-compressed cluster blocks on a disk (RAW data stream). A method could be to write a generic signature to detect the beginning of NTFS-compressed file segments on a disk. This method is useful in carving and scanning for textual strings.
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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 00:06, 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