Difference between pages "Tools:Data Recovery" and "Common Log File System (CLFS)"

From ForensicsWiki
(Difference between pages)
Jump to: navigation, search
m (Carving)
 
(External links)
 
Line 1: Line 1:
= Partition Recovery =
+
The '''Common Log File System''' ('''CLFS''') is a special purpose file (sub)system designed for transaction logging and/or recovery. The CLFS is not a file system in the traditional meaning of a disk file system, but more of a logical (special purpose) file system that operates in combination with a disk file system like [[NTFS]].
  
*[http://www.stellarinfo.com/recover-windows-nt.htm NTFS Partition Recovery]
+
== Overview ==
: Stellar NTFS Data Recovery Software to recover data from Windows based NTFS/NTFS5 file systems
+
A CLFS log consists of a base log file (.blf) and one or more container files.
  
*[http://www.infinadyne.com/cddvd_diagnostic.html CD/DVD Diagnostic]
+
There are two types of logs:
: Recover data and video from CDs/DVDs/Blu-Ray.  This is specifically not for forensic purposes but for data recovery.  A different tool called CD/DVD Inspector is for forensic examination of optical media.
+
* dedicated logs; contains a single stream of log record.
 +
* multiplexed (or common ) logs; contains several streams of log records.
  
*[http://www.ptdd.com/index.htm Partition Table Doctor]
+
== Implementation ==
: Recover deleted or lost partitions (FAT16/FAT32/NTFS/NTFS5/EXT2/EXT3/SWAP).
+
  
*[http://www.diskinternals.com/ntfs-recovery/ NTFS Recovery]
+
According to Wikipedia CLFS was introduced in Windows server 2003 R2.
: DiskInternals NTFS Recovery is a fully automatic utility that recovers data from damaged or formatted disks.
+
  
*[http://www.stud.uni-hannover.de/user/76201/gpart/ gpart]
+
In Windows Vista the CLFS is implemented as a driver named: clfs.sys. User space equivalent functionality is provided by clfsw32.dll, which communicates to the driver by DeviceIoControl calls.
: Gpart is a tool which tries to guess the primary partition table of a PC-type hard disk in case the primary partition table in sector 0 is damaged, incorrect or deleted.
+
  
*[http://www.cgsecurity.org/wiki/TestDisk TestDisk]
+
== Also see ==
: [[TestDisk]] is an OpenSource software and is licensed under the GNU Public License (GPL).  
+
Windows Internals 5 by Mark E. Russinovich and David A. Solomon
  
*[http://www.stellarinfo.com/partition-recovery.htm Partition Recovery Software]
+
== External links ==
: Partition Recovery software for NTFS & FAT system that examines lost windows partition of damaged and corrupted hard drive.
+
[http://msdn.microsoft.com/en-us/library/bb986747%28VS.85%29.aspx MSDN on Common Log File System]
  
== See Also ==
+
[http://en.wikipedia.org/wiki/Common_Log_File_System Wikipedia on Common Log File System]
  
* [http://support.microsoft.com/?kbid=166997 Using Norton Disk Edit to Backup Your Master Boot Record]
+
[[Category:Logical file systems]]
 
+
== Notes ==
+
 
+
* "fdisk /mbr" restores the boot code in the [[Master Boot Record]], but not the partition itself. On newer versions of Windows you should use fixmbr, bootrec, mbrfix, or [[MBRWizard]]. You can also extract a copy of the specific standard MBR code from tools like bootrec.exe and diskpart.exe in Windows (from various offsets) and copy it to disk with dd (Use bs=446 count=1). For Windows XP SP2 c:\%WINDIR%\System32\diskpart.exe the MBR code is found between offset 1b818h and 1ba17h.
+
 
+
= Data Recovery =
+
The term "Data Recovery" is frequently used to mean forensic recovery, but the term really should be used for recovering data from damaged media.
+
 
+
* [http://www.stellarinfo.com/ Stellar Data Recovery]
+
: Data recovery software services & tools to recover lost data from hard drive.
+
 
+
*[http://www.salvationdata.com/data-recovery-equipment/hd-doctor.htm HD Doctor Suite]
+
: HD Doctor Suite is a set of professional tools used to fix firmware problem
+
 
+
*[http://www.salvationdata.com SalvationDATA]
+
: Claims to have a program that can read the "bad blocks" of Maxtor drives with proprietary commands.
+
 
+
*[http://www.toolsthatwork.com/bringback.htm BringBack]
+
: BringBack offers easy to use, inexpensive, and highly successful data recovery for Windows and Linux (ext2) operating systems and digital images stored on memory cards, etc.
+
 
+
*[http://www.runtime.org/raid.htm RAID Reconstructor]
+
: Runtime Software's RAID Reconstructor will reconstruct RAID Level 0 (Striping) and RAID Level 5 drives.
+
 
+
* [http://www.e-rol.com/en/ e-ROL]
+
: Erol allows you to recover through the internet files erased by mistake. Recover your files online for free.
+
 
+
* [http://www.recuva.com/ Recuva]
+
: Recuva is a freeware Windows tool that will recover accidentally deleted files.
+
 
+
* [http://www.snapfiles.com/get/restoration.html Restoration]
+
: Restoration is a freeware Windows software that will allow you to recover deleted files
+
 
+
* [http://www.undelete-plus.com/ Undelete Plus]
+
: Undelete Plus is a free deleted file recovery tool that works for all versions of Windows (95-Vista), FAT12/16/32, NTFS and NTFS5 filesystems and can perform recovery on various solid state devices.
+
 
+
* [http://www.data-recovery-software.net/ R-Studio]
+
: R-Studio is a data recovery software suite that can recover files from FAT(12-32), NTFS, NTFS 5, HFS/HFS+, FFS, UFS/UFS2 (*BSD, Solaris), Ext2/Ext3 (Linux) and so on.
+
 
+
* [http://www.deepspar.com/ DeepSpar Disk Imager]
+
: DeepSpar Disk Imager is a dedicated disk imaging device built to handle disk-level problems and to recover bad sectors on a hard drive.
+
 
+
* [http://digital-assembly.com/products/adroit-photo-recovery/ Adroit Photo Recovery]
+
: Adroit Photo Recovery is a photo recovery tool that uses validated carving and is able to recover fragmented photos. Adroit Photo Recovery is able
+
: to recover high definition RAW images from Canon, Nikon etc.
+
 
+
* [http://sourceforge.net/projects/freerecover/ FreeRecover]
+
: FreeRecover is a small program that can recover deleted files from NTFS drives.
+
 
+
See also [[Data Recovery Stories]]
+
 
+
=Carving=
+
*[http://www.cnwrecovery.com/ CnW Recovery]
+
: Data carving tools and will recover most know file types.  For some formats the files are verified and intelligent names added based on file metadata.  Several video formats can be reconstructed from isolated fragments.
+
 
+
*[http://www.datalifter.com/products.htm DataLifter® - File Extractor Pro]
+
: Data carving runs on multiple threads to make use of modern processors
+
 
+
* [http://sourceforge.net/projects/defraser/ NFI Defraser]
+
: "Defraser is a forensic analysis application that can be used to detect full and partial multimedia files in datastreams. It is typically used to find (and restore) complete or partial video files in datastreams (for instance, unallocated diskspace)." Written in C#; runs on Windows.
+
 
+
*[http://www.simplecarver.com/ Simple Carver Suite]
+
: Simple Carver Suite is a collection of unique tools designed for a number of purposes including data recovery, forensic computing and eDiscovery. The suite was originally designed for data recovery and has since expanded to include unique file decoding, file identification and file classification.
+
 
+
*[http://foremost.sourceforge.net/ Foremost]
+
: Foremost is a console program to recover files based on their headers, footers, and internal data structures.
+
 
+
*[http://www.digitalforensicssolutions.com/Scalpel/ Scalpel]
+
: Scalpel is a fast file carver that reads a database of header and footer definitions and extracts matching files from a set of image files or raw device files. Scalpel is filesystem-independent and will carve files from FATx, NTFS, ext2/3, or raw partitions.
+
 
+
*[[EnCase]]
+
: EnCase comes with some enScripts that will do carving.
+
 
+
*[[CarvFs]]
+
: A virtual file system (fuse) implementation that can provide carving tools with the possibility to do recursive multi tool zero-storage carving (also called in-place carving). Patches and scripts for scalpel and foremost are provided. Works on raw and encase images.
+
 
+
*[[LibCarvPath]]
+
: A shared library that allows carving tools to use zero-storage carving on carvfs virtual files.
+
 
+
*[http://greg-kennedy.com/nwserver/?p=10 midi-carver]
+
: midi-carver is a data carver for MIDI files.
+
 
+
*[http://www.cgsecurity.org/wiki/PhotoRec PhotoRec]
+
: PhotoRec is file data recovery software designed to recover lost files including video, documents and archives from Hard Disks and CDRom and lost pictures (thus, its 'Photo Recovery' name) from digital camera memory.
+
 
+
*[http://www.datarescue.com/photorescue/ PhotoRescue]
+
: Datarescue PhotoRescue Advanced is picture and photo data recovery solution made by the creators of IDA Pro. PhotoRescue will undelete, unerase and recover pictures and files lost on corrupted, erased or damaged compact flash (CF) cards, SD Cards, Memory Sticks, SmartMedia and XD cards.
+
 
+
* [http://sourceforge.net/projects/revit/ ReviveIt]
+
: Revive It (RevIt) is an experimental carving tool, initially developed for the DFRWS 2006 carving challenge. It uses 'file structure based carving'. Note that RevIt currently is a work in progress.
+
 
+
* [http://jbj.rapanden.dk/magicrescue/ Magic Rescue]
+
: Magic Rescue is a file carving tool that uses "magic bytes" in a file contents to recover data.
+
 
+
* [[FTK]]
+
: FTK2 includes some file carvers
+
 
+
* [[X-Ways]]
+
: X-Ways Forensic provides a robust list of file types as well as the ability to specific custom file headers/trailers.  File types are available for carving, identification and filtering.
+
 
+
*[[Adroit Photo Forensics]]
+
: Adroit Photo Forensics supports data carving of popular image formats. Also supports fragmented carving using [[File_Carving:SmartCarving|SmartCarving]] and [[File_Carving:GuidedCarving|GuidedCarving]].
+
 
+
*[http://belkasoft.com/bfc/en/forensic_carver.asp Belkasoft Forensic Carver], [http://belkasoft.com/bec/en/evidence_center.asp Belkasoft Evidence Center]
+
: Belkasoft Forensic Carver and Belkasoft Evidence Center support data carving for Instant Messenger and Browser artifacts. These tools support carving of physical or logical Windows drives as well as popular forensic image formats like Encase Evidence Files, DD or SMART.
+

Revision as of 04:03, 3 December 2010

The Common Log File System (CLFS) is a special purpose file (sub)system designed for transaction logging and/or recovery. The CLFS is not a file system in the traditional meaning of a disk file system, but more of a logical (special purpose) file system that operates in combination with a disk file system like NTFS.

Overview

A CLFS log consists of a base log file (.blf) and one or more container files.

There are two types of logs:

  • dedicated logs; contains a single stream of log record.
  • multiplexed (or common ) logs; contains several streams of log records.

Implementation

According to Wikipedia CLFS was introduced in Windows server 2003 R2.

In Windows Vista the CLFS is implemented as a driver named: clfs.sys. User space equivalent functionality is provided by clfsw32.dll, which communicates to the driver by DeviceIoControl calls.

Also see

Windows Internals 5 by Mark E. Russinovich and David A. Solomon

External links

MSDN on Common Log File System

Wikipedia on Common Log File System