Difference between pages "Error Correction Code" and "Plaso"

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'''Error Correction Code (ECC Errors)'''
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{{Infobox_Software |
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  name = plaso |
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  maintainer = [[Kristinn Gudjonsson]], [[Joachim Metz]] |
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  os = [[Linux]], [[Mac OS X]], [[Windows]] |
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  genre = {{Analysis}} |
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  license = {{APL}} |
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  website = [https://code.google.com/p/plaso/ code.google.com/p/plaso/] |
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}}
  
:All modern hard disk drives are ATA (Advanced Technology Attachment) compliant. Part of this compliancy means that drives must have the ability to detect errors while reading data from individual sectors on the drive. This is to prevent corrupted data from being propagated through to the operating system which would lead to system crashes.
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Plaso (plaso langar að safna öllu) is the Python based back-end engine used by tools such as log2timeline for automatic creation of a super timelines. The goal of log2timeline (and thus plaso) is to provide a single tool that can parse various log files and forensic artifacts from computers and related systems, such as network equipment to produce a single correlated timeline. This timeline can then be easily analysed by forensic investigators/analysts, speeding up investigations by correlating the vast amount of information found on an average computer system. Plaso is intended to be applied for creating super timelines but also supports creating [http://blog.kiddaland.net/2013/02/targeted-timelines-part-i.html targeted timelines].
  
:In order to accomplish this, every sector has a built in checksum and error correction code that is written at the time that data is written to the sector. Upon reading the sector, the drive recalculates the checksum and compares it to the one previously written. If it does not match, the error correction code will attempt to correct the data. Every sector has a standard 512 bytes of user data. A typical ECC is capable of correcting between 10 and 12 bytes. If repairing the corruption is beyond the capability of the ECC, the data will not be returned to the operating system. The drive will then return an error. This is typically a UNC (uncorrectable) error.
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The Plaso project site also provides [[4n6time]], formerly "l2t_Review", which is a cross-platform forensic tool for timeline creation and review by [[David Nides]].
  
:These types of errors occur when data is written to the sector improperly or inadvertently. Additionally, these errors can be due to read instability in the drive where the data itself is not actually corrupted but the drive is incapable of reading it correctly. This can be due to factors such as minute mechanical wear of the parts inside the head disk assembly.
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== Supported Formats ==
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=== Storage Media Image File Formats ===
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Storage Medis Image File Format support is provided by [[dfvfs]].
 +
 
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=== Volume System Formats ===
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Volume System Format support is provided by [[dfvfs]].
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=== File System Formats ===
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File System Format support is provided by [[dfvfs]].
 +
 
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=== File formats ===
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<b>TODO expand this list</b>
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* Apple System Log (ASL)
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* Basic Security Module (BSM)
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* Bencode files
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* [[Google Chrome|Chrome cache files]]
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* [[Extensible Storage Engine (ESE) Database File (EDB) format]] using [[libesedb]]
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* [[Internet Explorer History File Format]] (also known as MSIE 4 - 9 Cache Files or index.dat) using [[libmsiecf]]
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* Java IDX
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* [[OLE Compound File]] using [[libolecf]]
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* OpenXML
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* Pcap files
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* [[Property list (plist)|Property list (plist) format]] using [[binplist]]
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* SELinux audit logs
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* SkyDrive log and error log files
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* SQLite databases
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* Symantec AV logs
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* Syslog
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* [[Windows Event Log (EVT)]] using [[libevt]]
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* Windows Firewall
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* Windows Job files (think at jobs)
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* Windows Prefetch files
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* Windows Recycle bin (INFO2 and $I/$R)
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* [[Windows NT Registry File (REGF)]] using [[libregf]]
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* [[LNK|Windows Shortcut File (LNK) format]] using [[liblnk]]
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* [[Windows XML Event Log (EVTX)]] using [[libevtx]]
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* Xchat and Xchat scrollback files
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=== Bencode file formats ===
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* Transmission
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* uTorrent
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=== ESE database file formats ===
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* Internet Explorer WebCache format
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=== OLE Compound File formats ===
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* Document summary information
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* Summary information (top-level only)
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=== Property list (plist) formats ===
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* Airport
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* Apple Account
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* Bluetooth
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* Install History
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* iPod/iPhone
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* Mac User
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* Safari history
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* Software Update
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* Spotlight
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* Spotlight Volume Information
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* Timemachine
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=== SQLite database file formats ===
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* Android call logs
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* Android SMS
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* Chrome cookies
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* [[Google Chrome|Chrome browsing and downloads history]]
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* [[Mozilla Firefox|Firefox browsing and downloads history]]
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* Google Drive
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* Launch services quarantine events
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* MacKeeper cache
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* Mac OS X document versions
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* Skype text conversations
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* Zeitgeist activity
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=== Windows Registry formats ===
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<b>TODO expand this list</b>
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* [[Windows Application Compatibility|AppCompatCache]]
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* CCleaner
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* MountPoints2
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* MSIE Zone
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* MSIE Zone Software
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== History ==
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Plaso is a Python-based rewrite of the Perl-based [[log2timeline]] initially created by [[Kristinn Gudjonsson]]. Plaso builds upon the [[SleuthKit]], [[libyal]], [[dfvfs]] and various other projects.
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== See Also ==
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* [[dfvfs]]
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* [[log2timeline]]
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== External Links ==
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* [https://code.google.com/p/plaso/ Project site]
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* [https://sites.google.com/a/kiddaland.net/plaso/home Project documentation]
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* [http://blog.kiddaland.net/ Project blog]
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* [https://sites.google.com/a/kiddaland.net/plaso/usage/4n6time 4n6time]

Revision as of 03:49, 3 June 2014

plaso
Maintainer: Kristinn Gudjonsson, Joachim Metz
OS: Linux, Mac OS X, Windows
Genre: Analysis
License: APL
Website: code.google.com/p/plaso/

Plaso (plaso langar að safna öllu) is the Python based back-end engine used by tools such as log2timeline for automatic creation of a super timelines. The goal of log2timeline (and thus plaso) is to provide a single tool that can parse various log files and forensic artifacts from computers and related systems, such as network equipment to produce a single correlated timeline. This timeline can then be easily analysed by forensic investigators/analysts, speeding up investigations by correlating the vast amount of information found on an average computer system. Plaso is intended to be applied for creating super timelines but also supports creating targeted timelines.

The Plaso project site also provides 4n6time, formerly "l2t_Review", which is a cross-platform forensic tool for timeline creation and review by David Nides.

Supported Formats

Storage Media Image File Formats

Storage Medis Image File Format support is provided by dfvfs.

Volume System Formats

Volume System Format support is provided by dfvfs.

File System Formats

File System Format support is provided by dfvfs.

File formats

TODO expand this list

Bencode file formats

  • Transmission
  • uTorrent

ESE database file formats

  • Internet Explorer WebCache format

OLE Compound File formats

  • Document summary information
  • Summary information (top-level only)

Property list (plist) formats

  • Airport
  • Apple Account
  • Bluetooth
  • Install History
  • iPod/iPhone
  • Mac User
  • Safari history
  • Software Update
  • Spotlight
  • Spotlight Volume Information
  • Timemachine

SQLite database file formats

Windows Registry formats

TODO expand this list

History

Plaso is a Python-based rewrite of the Perl-based log2timeline initially created by Kristinn Gudjonsson. Plaso builds upon the SleuthKit, libyal, dfvfs and various other projects.

See Also

External Links