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log2timeline is designed as a framework for artifact timeline creation and analysis. The main purpose is to provide a single tool to parse various log files and artifacts found on suspect systems (and supporting systems, such as network equipment) and produce a body file that can be used to create a timeline, using tools such as mactime from TSK, for forensic investigators.
The tool is written in Perl for Linux but has been tested using Mac OS X (10.5.7 and 10.5.8). Parts of it should work natively in Windows as well (with ActiveState Perl installed).
log2timeline takes a log file (or a directory) and parses it to produce a body file that can be imported into other tools for timeline analysis. The tool has both a modular based approach to the input file as well as the output file. The default behavior of the current version is to export the timeline in a body format readable by TSK's (The SleuthKit) mactime (although this can be easily changed). log2timeline is build as a series of scripts, this one being the front-end, which uses other scripts to actually parse the log files (called modules). The tool is build to be easily extended for anyone that wants to create a new module.
The tool contains (current version of 0.51 nightly build (20102608)) three front-ends:
- log2timeline - The main front-end. A tool capable of parsing a single log file/directory pointed to the tool using a selected input module.
- timescanner - A recursive front-end capable of parsing a directory passed to the tool and recursively go through each and every file/dir and try to parse it with every or selected input modules (to provide an automatic method of creating a super timeline).
- glog2timeline - A simple GUI front-end, with similar capabilities as log2timeline (the main front-end)
Currently Supported Input Modules
The currently supported input modules (as of version 0.51 nightly build (20102608)) are:
- apache2_access - Parse the content of a Apache2 access log file
- apache2_error - Parse the content of a Apache2 error log file
- chrome - Parse the content of a Chrome history file
- evt - Parse the content of a Windows 2k/XP/2k3 Event Log
- evtx - Parse the content of a Windows XML Event Log (EVTX) file
- exif - Extract metadata information from files using ExifTool
- ff_bookmark - Parse the content of a Firefox bookmark file
- firefox2 - Parse the content of a Firefox 2 browser history
- firefox3 - Parse the content of a Firefox 3 history file
- iehistory - Parse the content of an index.dat file containg IE history
- iis - Parse the content of a IIS W3C log file
- isatxt - Parse the content of a ISA text export log file
- mactime - Parse the content of a body file in the mactime format
- mcafee - Parse the content of a log file
- opera - Parse the content of an Opera's global history file
- oxml - Parse the content of an OpenXML document (Office 2007 documents)
- pcap - Parse the content of a PCAP file
- pdf - Parse some of the available PDF document metadata
- prefetch - Parse the content of the Prefetch directory
- recycler - Parse the content of the recycle bin directory
- restore - Parse the content of the restore point directory
- setupapi - Parse the content of the SetupAPI log file in Windows XP
- sol - Parse the content of a .sol (LSO) or a Flash cookie file
- squid - Parse the content of a Squid access log (http_emulate off)
- syslog - Parse the content of a Linux Syslog log file
- tln - Parse the content of a body file in the TLN format
- userassist - Parses the NTUSER.DAT registry file
- volatility - Parse the content of a Volatility output files (psscan2, sockscan2, ...)
- win_link - Parse the content of a Windows shortcut file (or a link file)
- wmiprov - Parse the content of the wmiprov log file
- xpfirewall - Parse the content of a XP Firewall log
Currently Supported Output Modules
The currently supported output modules (as of version 0.51 nightly build (20102608)) are:
- beedocs - Output timeline using tab-delimited file to import into BeeDocs
- cef - Output timeline using the ArcSight Commen Event Format (CEF)
- cftl - Output timeline in a XML format that can be read by CFTL
- csv - Output timeline using CSV (Comma Separated Value) file
- mactime - Output timeline using mactime format
- mactime_l - Output timeline using legacy version of the mactime format (version 1.x and 2.x)
- simile - Output timeline in a XML format that can be read by a SIMILE widget
- sqlite - Output timeline into a SQLite database
- tab - Output timeline using TDV (Tab Delimited Value) file
- tln - Output timeline using H. Carvey's TLN format
- tlnx - Output timeline using H. Carvey's TLN format in XML
Plaso - The next generation
Version 0.x Log2timeline has been extremely useful but it was written in Perl and has performance limitations. A major effort to re-write it in Python, named plaso is underway and alpha releases have been released.
For version 1.x the plaso engine has been created and front-ends have been written.