Difference between pages "Sim Filesystem" and "Mac OS X"

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''Under Construction''
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{{Expand}}
  
The [[SIM Card]] is the basic memory device inside of many mobile phones in use today. This small piece of hardware has been key to solving many cases in the world of [[SIM Card Forensics]]. However, without the proper knowledge of the SIM card's filesystem, the user will be missing out on all the valuable information the [[SIM Card]] holds.
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Apple Inc.'s Macintosh OS X (pronounced "'''OS Ten'''") is the operating system distributed with Apple computers. It includes heavily used several programs by default, including [[Apple Mail]], a web browser called [[Apple Safari | Safari]], and an [[Apple Address Book]], and [[iCal]].  
  
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== Disk image types ==
  
== Getting Started ==
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Mac OS X has support for various disk image types build-in, some of which are:
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* read-write disk image (.dmg) some of which use the [[Raw Image Format]]
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* [[Sparse Image format|Sparse disk image (.spareimage)]]
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* [[Sparse Bundle Image format|Sparse bundle disk image (.sparsebundle)]]
  
[[File:What_you_need.jpg|250px|thumb|Items you'll need]]
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== Burn Folder ==
  
This is a list of items to get you started on reading SIM Cards and their information:
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Mac OS X Burn Folder:
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<pre>
 +
$NAME.fpbf
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</pre>
  
# [[Windows]] operating system
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This folder normally contains [[Mac OS X Alias Files|alias files]] (similar to LNK files under Windows). Which should have the following signature.
# [[SIMCon]]
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<pre>
#* Program used to read SIM Cards
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00000000  62 6f 6f 6b 00 00 00 00  6d 61 72 6b 00 00 00 00  |book....mark....|
# [[SIM Cards]]
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</pre>
# SIM Card Reader
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== Quick Guide for SIMCon ==
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These [[Mac OS X Alias Files|alias files]] contain additional date and time values.
  
# Make sure the SIM Card Reader with SIM Card is connected
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Also check the following files for references to deleted .fpbf paths:
# Open [[SIMCon]]
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<pre>
# Click File > Read SIM or Click [[File:Simcon.png]] in the upper left corner of [[SIMCon]]
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/Users/$USERNAME/Library/Preferences/com.apple.finder.plist
# Click OK when the next dialog box pops up
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/Users/$USERNAME/Library/Preferences/com.apple.sidebarlists.plist
#* '''Note''', some SIM cards are locked. This is where the PIN needs to be entered if known.
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</pre>
#* If the PIN is unknown, the SIM cannot be read.
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# Click OK again when the next dialog box pops up
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== Definitions ==
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Actual burning of optical media is logged in:
 +
<pre>
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/var/log/system.log
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/Users/$USERNAME/Library/Logs/DiscRecording.log
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/private/var/.logs_exporter/cache/Users/$USERNAME/Library/Logs/DiscRecording.log
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</pre>
  
=== MF ===
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== HFS/HFS+ date and time values ==
* Only '''one''' MF
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* The Master File (MF)
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* Root of the SIM Card file system
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* Equivalent to the root directory or "/" in the Linux filesystem
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=== DF ===
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In HFS+ date and time values are stored in an unsigned 32-bit integer containing the number of seconds since January 1, 1904 at 00:00:00 (midnight) UTC (GMT). This is slightly different from HFS where the date and time value are stored using the local time. The maximum representable date is February 6, 2040 at 06:28:15 UTC (GMT). The date values do not account for leap seconds. They do include a leap day in every year that is evenly divisible by four. This is sufficient given that the range of representable dates does not contain 1900 or 2100, neither of which have leap days. Also see: [http://web.archive.org/web/20090214212148/http://developer.apple.com/technotes/tn/tn1150.html Technical Note TN1150 - HFS Plus Volume Format]
* Dedicated Files (DF)
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* Equivalent to a folder in a Windows/Linux filesystem
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* Usually three DF's
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** DF_GSM / DF_DCS1800 / DF_TELECOM
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==== DF_DCS1800 / DF_GSM ====
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Converting HFS/HFS+ date and time values with Python:
* Contains network related information
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<pre>
* Specifying data in DF_GSM writes only to DF_GSM on the SIM
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import datetime
* The SIM is expected to mirror GSM and DCS1800
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==== DF_TELECOM ====
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print datetime.datetime( 1904, 1, 1 ) + datetime.timedelta( seconds=0xCBDAF25B )
* Contains the service related information
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</pre>
  
=== EF ===
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== Launch Agents ==
* Elementary Files (EF)
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<pre>
* Holds one to many records
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/System/Library/LaunchAgents/
* Represent the leaf node of the filesystem
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</pre>
* EF's sit below the DF's in the filesystem hierarchy
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=== PLMN ===
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== Launch Daemons ==
* Public Land Mobile Network
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System-wide:
** A PLMN is a network that is established and operated by an administration or by a recognized operating agency (ROA) for the specific purpose of providing land mobile telecommunications services to the public. [http://en.wikipedia.org/wiki/Public_land_mobile_network]
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<pre>
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/Library/LaunchDaemons
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/System/Library/LaunchDaemons
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</pre>
  
=== LAI ===
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These directories contain [[Property list (plist)]] files.
* Location Area Identity
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** Each location area of a public land mobile network (PLMN) has its own unique identifier which is known as Location Area Identity (LAI). [http://en.wikipedia.org/wiki/Location_Area_Identity]
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== Information ==
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== Startup Items ==
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<pre>
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/Library/StartupItems/
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/System/Library/StartupItems/
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</pre>
  
=== EF_ICCID ===
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== Crash Reporter ==
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<pre>
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/Library/Application Support/CrashReporter
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</pre>
  
This displays the ID or Card Identity of the SIM Card, this can also be found on the SIM card itself.
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== Diagnostic Reports ==
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<pre>
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/Library/Logs/DiagnosticReports
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</pre>
  
[[File:Ef_iccid.png|350px|thumb|EF_ICCID]]
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== Quarantine event database ==
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See [http://menial.co.uk/blog/2011/06/16/mac-quarantine-event-database/]
  
=== DF_GSM ===
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Snow Leopard and earlier
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<pre>
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/Users/$USER/Library/Preferences/com.apple.LaunchServices.QuarantineEvents
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</pre>
  
==== EF_IMSI ====
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<pre>
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SELECT datetime(LSQuarantineTimeStamp + 978307200, "unixepoch") as LSQuarantineTimeStamp, LSQuarantineAgentName, LSQuarantineOriginURLString, LSQuarantineDataURLString from LSQuarantineEvent;
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</pre>
  
[[File:Ef_imsi.png|350px|thumb|EF_IMSI]]
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Lion and later
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<pre>
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/Users/$USER/Library/Preferences/com.apple.LaunchServices.QuarantineEventsV2
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</pre>
  
* International Mobile Subscriber Identity (IMSI)[http://en.wikipedia.org/wiki/IMSI]
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== sleepimage ==
* 310  -  260  -  653235860
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This file is similar to the hibernation file on Windows.
* MCC  -  MNC  -  MSIN
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<pre>
** MCC[http://en.wikipedia.org/wiki/List_of_mobile_country_codes] (3 Digits)
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/private/var/vm/sleepimage
*** Mobile Country Code
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</pre>
** MNC[http://en.wikipedia.org/wiki/Mobile_Network_Code] (2 Digits EU / 3 Digits NA)
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*** Mobile Network Code
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** MSIN[http://en.wikipedia.org/wiki/MSIN] (Remaining Digits)
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*** Mobile Subscription Identification Number
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*** Within the network's customer base
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==== EF_PLMNSEL ====
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Also see: [http://osxdaily.com/2010/10/11/sleepimage-mac/]
[[File:Plmnsel.png|350px|thumb|EF_PLMNSEL]]
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* List of all PLMN's (see [[Sim_Filesystem#PLMN]])
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==== EF_LOCI ====
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== Package Files (.PKG) ==
* Location Information
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Package Files (.PKG) are XAR archives [http://en.wikipedia.org/wiki/Xar_(archiver)] that contain a cpio archive and metadata [http://s.sudre.free.fr/Stuff/Ivanhoe/FLAT.html].
** Contains Location Area Identity (see [[Sim_Filesystem#LAI]])
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*** LAI Network Code (see [[Sim_Filesystem#PLMN]] / [[Sim_Filesystem#LAI]])
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[[File:Ef_loci.png|350px|thumb|EF_LOCI]]
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== Also see ==
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* [[MacOS Process Monitoring]]
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* [[Acquiring a MacOS System with Target Disk Mode]]
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* [[Converting Binary Plists]]
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* [[FileVault Disk Encryption]]
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* [[File Vault]]
  
=== DF_TELECOM ===
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=== Formats ===
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* [[Basic Security Module (BSM) file format]]
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* [[Property list (plist)]]
  
==== EF_ADN ====
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== External Links ==
[[File:EF_adn.png|350px|thumb|EF_ADN]]
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* [http://www.apple.com/macosx/ Official website]
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* [http://en.wikipedia.org/wiki/OS_X Wikipedia entry on OS X]
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* [http://menial.co.uk/blog/2011/06/16/mac-quarantine-event-database/ Quarantine event database]
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* [http://www2.tech.purdue.edu/cit/Courses/cit556/readings/MacForensicsCraiger.pdf Mac Forensics: Mac OS X and the HFS+ File System] by P. Craiger
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* [http://web.me.com/driley/iWeb/Previous_files/Directory_Services_Overview.pdf Mac OS X Directory Services Integration including Active Directory]
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* [http://digitalinvestigation.wordpress.com/2012/04/04/geek-post-nskeyedarchiver-files-what-are-they-and-how-can-i-use-them/ NSKeyedArchiver files – what are they, and how can I use them?]
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* [http://krypted.com/mac-os-x/command-line-alf-on-mac-os-x/ Command Line ALF on Mac OS X]
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* [http://newosxbook.com/DMG.html Demystifying the DMG File Format]
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* [https://code.google.com/p/mac-security-tips/wiki/ALL_THE_TIPS mac-security-tips]
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 +
=== Apple Examiner ===
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* [http://www.appleexaminer.com/ The Apple Examiner]
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* [http://www.appleexaminer.com/MacsAndOS/Analysis/USBOSX/USBOSX.html USB Entries on OS X]
 +
* [http://www.appleexaminer.com/Downloads/MacForensics.pdf Macintosh Forensics - A Guide for the Forensically Sound Examination of a Macintosh Computer] by Ryan R. Kubasiak
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 +
=== iCloud ===
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* [http://support.apple.com/kb/HT4865?viewlocale=en_US&locale=en_US iCloud: iCloud security and privacy overview]
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[[Category:Mac OS X]]
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[[Category:Operating systems]]

Revision as of 14:08, 12 June 2014

Information icon.png

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

Apple Inc.'s Macintosh OS X (pronounced "OS Ten") is the operating system distributed with Apple computers. It includes heavily used several programs by default, including Apple Mail, a web browser called Safari, and an Apple Address Book, and iCal.

Disk image types

Mac OS X has support for various disk image types build-in, some of which are:

Burn Folder

Mac OS X Burn Folder:

$NAME.fpbf

This folder normally contains alias files (similar to LNK files under Windows). Which should have the following signature.

00000000  62 6f 6f 6b 00 00 00 00  6d 61 72 6b 00 00 00 00  |book....mark....|

These alias files contain additional date and time values.

Also check the following files for references to deleted .fpbf paths:

/Users/$USERNAME/Library/Preferences/com.apple.finder.plist
/Users/$USERNAME/Library/Preferences/com.apple.sidebarlists.plist

Actual burning of optical media is logged in:

/var/log/system.log
/Users/$USERNAME/Library/Logs/DiscRecording.log
/private/var/.logs_exporter/cache/Users/$USERNAME/Library/Logs/DiscRecording.log

HFS/HFS+ date and time values

In HFS+ date and time values are stored in an unsigned 32-bit integer containing the number of seconds since January 1, 1904 at 00:00:00 (midnight) UTC (GMT). This is slightly different from HFS where the date and time value are stored using the local time. The maximum representable date is February 6, 2040 at 06:28:15 UTC (GMT). The date values do not account for leap seconds. They do include a leap day in every year that is evenly divisible by four. This is sufficient given that the range of representable dates does not contain 1900 or 2100, neither of which have leap days. Also see: Technical Note TN1150 - HFS Plus Volume Format

Converting HFS/HFS+ date and time values with Python:

import datetime

print datetime.datetime( 1904, 1, 1 ) + datetime.timedelta( seconds=0xCBDAF25B )

Launch Agents

/System/Library/LaunchAgents/

Launch Daemons

System-wide:

/Library/LaunchDaemons
/System/Library/LaunchDaemons

These directories contain Property list (plist) files.

Startup Items

/Library/StartupItems/
/System/Library/StartupItems/

Crash Reporter

/Library/Application Support/CrashReporter

Diagnostic Reports

/Library/Logs/DiagnosticReports

Quarantine event database

See [1]

Snow Leopard and earlier

/Users/$USER/Library/Preferences/com.apple.LaunchServices.QuarantineEvents
SELECT datetime(LSQuarantineTimeStamp + 978307200, "unixepoch") as LSQuarantineTimeStamp, LSQuarantineAgentName, LSQuarantineOriginURLString, LSQuarantineDataURLString from LSQuarantineEvent;

Lion and later

/Users/$USER/Library/Preferences/com.apple.LaunchServices.QuarantineEventsV2

sleepimage

This file is similar to the hibernation file on Windows.

/private/var/vm/sleepimage

Also see: [2]

Package Files (.PKG)

Package Files (.PKG) are XAR archives [3] that contain a cpio archive and metadata [4].

Also see

Formats

External Links

Apple Examiner

iCloud