Difference between pages "New Technology File System (NTFS)" and "Windows XML Event Log (EVTX)"

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The '''New Technology File System''' ('''NTFS''') is a [[file system]] developed and introduced by [[Microsoft]] in 1995 with [[Windows]] NT. As a replacement for the [[FAT]] file system, it quickly became the standard for [[Windows 2000]], [[Windows XP]] and [[Windows Server 2003]].
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{{expand}}
  
The features of NTFS include:
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The Windows XML Event Log (EVTX) format was introduces in [[Windows|Windows Vista]] as a replacement for the [[Windows Event Log (EVT)]] format.
  
* [[Hard-links]]
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== Event Viewer ==
* Improved performance, reliability and disk space utilization
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On Windows the event logs can be managed with "Event Viewer" (eventvwr.msc) or "Windows Events Command Line Utility" (wevtutil.exe). Event Viewer can represent the EVTX files in both "general view" (or formatted view) and "details view" (which has both a "friendly view" and "XML view"). Note that the formatted view can hide significant event data that is stored in the event record and can be seen in the detailed view.
* Security [[access control lists]]
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* File system journaling
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== Time Stamps ==
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If you export an event log from Event Viewer additional "display information" can be exported. This display information is stored in a corresponding file named:
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<pre>
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LocaleMetaData\%FILENAME%_%LCID%.MTA
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</pre>
  
NTFS keeps track of lots of time stamps. Each file has a time stamp for 'Create', 'Modify', 'Access', and 'Entry Modified'. The latter refers to the time when the MFT entry itself was modified. These four values are commonly abbreviated as the 'MACE' values. Note that other attributes in each MFT record may also contain timestamps that are of forensic value.
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Where LCID is the "locale identifier" [http://msdn.microsoft.com/en-us/goglobal/bb964664.aspx].
  
Additional information on how NTFS timestamps work when files are moved or copied is available here: [http://support.microsoft.com/kb/299648 Microsoft KB 299648]
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== See Also ==
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* [[Windows Event Log (EVT)]]
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* [[Windows]]
  
=== Changes in Windows Vista  ===
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== External Links ==
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=== File Format ===
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* [http://msdn.microsoft.com/en-us/library/cc231282(v=prot.10).aspx EventLog Remoting Protocol Version 6.0 Specification], by [[Microsoft]]
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* [http://msdn.microsoft.com/en-us/library/cc231354.aspx Simple BinXml Example], by [[Microsoft]]
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* [http://computer.forensikblog.de/mt/mt-search.cgi?IncludeBlogs=3&tag=Evtx&limit=20 int for(ensic){blog;} - results tagged Evtx], by [[Andreas Schuster]]
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* [http://www.dfrws.org/2007/proceedings/p65-schuster_pres.pdf Introducing the Microsoft Vista Event Log File Format], by [[Andreas Schuster]] in 2007
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* [http://computer.forensikblog.de/en/2010/10/linking-event-messages-and-resource-dlls.html Linking Event Messages and Resource DLLs], by [[Andreas Schuster]] in 2010
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* [https://googledrive.com/host/0B3fBvzttpiiSRnQ0SExzX3JjdFE/Windows%20XML%20Event%20Log%20(EVTX).pdf Windows XML Event Log (EVTX) format], by the [[libevtx|libevtx project]]
  
In Windows Vista, NTFS no longer tracks the Last Access time of a file by default. This feature can be enabled by the user if desired via setting the registry key 'HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem\NtfsDisableLastAccessUpdate' to '0'.
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=== Event Identifiers ===
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* [http://eventid.net/ EventID.net]
  
== Alternate Data Streams ==
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=== Windows Vista/2008 ===
The '''NTFS''' file system includes a feature referred to as Alternate Data Streams (ADSs). This feature has also been referred to as "multiple data streams", "alternative data streams", etc. ADSs were included in '''NTFS''' in order to support the resource forks employed by the Hierarchal File System ([[HFS]]) employed by Macintosh systems. 
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* [http://support.microsoft.com/kb/947226 Description of security events in Windows Vista and in Windows Server 2008]
  
As of [[Windows XP]] SP2, files downloaded via Internet Explorer, Outlook, and Windows Messenger were automatically given specific "zoneid" ADSs.  The [[Windows]] Explorer shell would then display a warning when the user attempted to execute these files (by double-clicking them).
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=== Windows 7 ===
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* [http://msdn.microsoft.com/en-us/magazine/ee412263.aspx Core OS Events in Windows 7, Part 1]
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* [http://msdn.microsoft.com/en-us/magazine/ee358703.aspx Core Instrumentation Events in Windows 7, Part 2]
  
Sysadmins should be aware that prior to Vista, there are no tools native to the [[Windows]] platform that would allow you to view the existence of arbitrary ADSs. While ADSs can be created and their contents executed or viewed, it wasn't until the "/r" switch was introduced with the "dir" command on Vista that arbitrary ADSs would be visible. Prior to this, tools such as [http://www.heysoft.de/Frames/f_sw_la_en.htm LADS] could be used to view the existence of these files.
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== Tools ==
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* [http://computer.forensikblog.de/files/evtx/Parse-Evtx-current.zip Evtx Parser]
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* [[libevtx]]
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* [[log2timeline]]
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* [http://technet.microsoft.com/en-us/library/cc749339.aspx wevtutil]
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* [http://www.microsoft.com/en-us/download/details.aspx?id=24659 LogParser]
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* [http://www.williballenthin.com/evtx/ python-evtx]
  
Microsoft FSRM (File System Resource Manager) also uses ADS as part of 'file classification'.
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[[Category:File Formats]]
 
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Examiners should be aware that most forensic analysis applications, including [[EnCase]] and ProDiscover, will display ADSs found in acquired images in red.
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== Advanced Format (4KB Sector) Hard Drives ==
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NTFS does not natively handle drives that use the new standard of 4KB sectors. For information on this, see [[Advanced Format]].
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== Transactional NTFS (TxF) ==
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According to MSDN Transactional NTFS (TxF) allows file operations on an NTFS file system volume to be performed in a transaction.
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Several TxF related file-system-metadata files can be found in the file-system-metadata directory: \$Extend\$RmMetadata\. TxF also uses the MFT attribute $LOGGING_UTILITY_STREAM with the name $TXF_DATA.
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TxF uses the [[Common Log File System (CLFS)]]
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== External links ==
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* [http://en.wikipedia.org/wiki/NTFS Wikipedia: NTFS]
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* [http://msdn.microsoft.com/en-us/library/bb968806%28v=VS.85%29.aspx MSDN on Transactional NTFS]
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* [http://en.wikipedia.org/wiki/Transactional_NTFS Wikipedia on Transactional NTFS]
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* [http://www.tzworks.net/prototype_page.php?proto_id=12  Windows NTFS Metadata Extractor Utility] Free tool that can be run on Windows, Linux or Mac OS-X
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* [http://www.tzworks.net/prototype_page.php?proto_id=28 Graphic Engine for NTFS Analysis (gena)] (GUI to view NTFS internals/extract data on live systems)
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* [http://sourceforge.net/projects/linux-ntfs/files/NTFS%20Documentation/ Linux-ntfs Documentation] Detailed documentation of the NTFS format by the Linux-NTFS driver creators.
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* [http://support.microsoft.com/kb/140365 Default cluster size for NTFS, FAT, and exFAT]
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* [http://code.google.com/p/libfslibs/downloads/detail?name=New%20Technologies%20File%20System%20%28NTFS%29.pdf New Technologies File System (NTFS)], by the [[libfslibs|libfslibs project]], August 2009
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[[Category:File Systems]]
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Revision as of 03:11, 12 July 2013

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The Windows XML Event Log (EVTX) format was introduces in Windows Vista as a replacement for the Windows Event Log (EVT) format.

Contents

Event Viewer

On Windows the event logs can be managed with "Event Viewer" (eventvwr.msc) or "Windows Events Command Line Utility" (wevtutil.exe). Event Viewer can represent the EVTX files in both "general view" (or formatted view) and "details view" (which has both a "friendly view" and "XML view"). Note that the formatted view can hide significant event data that is stored in the event record and can be seen in the detailed view.

If you export an event log from Event Viewer additional "display information" can be exported. This display information is stored in a corresponding file named:

LocaleMetaData\%FILENAME%_%LCID%.MTA

Where LCID is the "locale identifier" [1].

See Also

External Links

File Format

Event Identifiers

Windows Vista/2008

Windows 7

Tools