Difference between pages "Pagefile.sys" and "MacOSX"

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Microsoft [[Windows]] uses a '''paging file''', called <tt>pagefile.sys</tt>, to store frames of memory that do not current fit into [[physical memory]]. Although Windows supports up to 16 paging files, in practice normally only one is used. This file, stored in <tt>%SystemDrive%\pagefile.sys</tt> is a hidden system file. Because the operating system keeps this file open during normal operation, it can never be read or accessed by a user. It is possible to read this file by parsing the raw file system (e.g. using [[The Sleuth Kit]]).
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{{Expand}}
  
== Analysis Options ==
 
  
Data is stored in the paging file when [[Windows]] determines that it needs more space in physical memory. Because storage locations in the paging file are not necessarily sequential, it is unlikely to find consecutive pages there. Although it is possible to find data in chunks smaller than or equal to 4KB, its the largest an examiner can hope for.
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== LaunchDaemons ==
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System-wide:
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<pre>
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/Library/LaunchDaemons/
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/System/Library/LaunchDaemons/
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</pre>
  
Sadly, the most productive method to date for analyzing paging files is searching for [[strings]]. It is possible to [[Carving|carve out files]], but as noted the examiner is unlikely to find anything larger than 4KB.
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These directories contain plists.
  
== See Also ==
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== LaunchAgents ==
* [[Windows Memory Analysis]]
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System-wide:
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<pre>
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/Library/LaunchAgents/
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/System/Library/LaunchAgents/
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</pre>
  
== External Links ==
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Per user:
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<pre>
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/Users/$USERNAME/Library/LaunchAgents/
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</pre>
  
* [http://www.4tphi.net/fatkit/papers/NickMaclean2006.pdf Acquisition and Analysis of Windows Memory], by [[Nicholas Maclean]] in 2006. Thesis on [[Windows Memory Analysis|Windows memory analysis]] and discusses the paging file.
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These directories contain plists.
* ''[http://www.jessekornblum.com/research/papers/buffalo.pdf Using Every Part of the Buffalo in Windows Memory Analysis]'' - A paper discussing the different states of memory including where to find data in the paging file
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* ''[http://www.microsoft.com/MSPress/books/6710.aspx Microsoft Windows Internals]'' - An excellent guide to the inner workings of Microsoft Windows
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[[Category:Memory Analysis]]
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[[Category:Operating systems]]
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[[Category:MacOSX]]

Revision as of 03:26, 2 June 2014

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LaunchDaemons

System-wide:

/Library/LaunchDaemons/
/System/Library/LaunchDaemons/

These directories contain plists.

LaunchAgents

System-wide:

/Library/LaunchAgents/
/System/Library/LaunchAgents/

Per user:

/Users/$USERNAME/Library/LaunchAgents/

These directories contain plists.