Difference between pages "Tools:Data Recovery" and "Windows SuperFetch Format"

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(Partition Recovery)
 
(File header)
 
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{{Wikify}}
+
{{expand}}
  
= Partition Recovery =
+
== MEMO file ==
 +
Some of the <tt>Ag*.db</tt> files are MEMO files.
  
; [[Partition Table Doctor]]
+
The MEMO file consists of:
: http://www.ptdd.com/index.htm
+
* file header
 +
* compressed blocks
  
; [[parted]]
+
=== File header ===
: The Linux partition management tool.
+
The file header is 84 bytes of size and consists of:
 +
{| class="wikitable"
 +
|-
 +
! Offset
 +
! Size
 +
! Value
 +
! Description
 +
|-
 +
| 0
 +
| 4
 +
| 0x304D454D ("MEM0") or 0x4F4D454D ("MEMO")
 +
| Signature
 +
|-
 +
| 4
 +
| 4
 +
|
 +
| Uncompressed (total) data size
 +
|-
 +
|}
  
; [[gpart]]
+
=== Compressed blocks ===
: http://www.stud.uni-hannover.de/user/76201/gpart/
+
The file header is followed by compressed blocks:
 +
{| class="wikitable"
 +
|-
 +
! Offset
 +
! Size
 +
! Value
 +
! Description
 +
|-
 +
| 0
 +
| 4
 +
|
 +
| Compressed data size
 +
|-
 +
| 4
 +
| ...
 +
|
 +
| Compressed data
 +
|-
 +
|}
  
; [[Testdisk]]
+
=== Uncompressed data ===
: http://www.cgsecurity.org/wiki/TestDisk
+
<b>TODO</b>
  
== See Also ==
+
== TRX file ==
 +
The <tt>Ag*.db.trx</tt> files are TRX files.
  
* [http://support.microsoft.com/?kbid=166997 Using Norton Disk Edit to Backup Your Master Boot Record]
+
<b>Note that the following format specification is incomplete.</b>
  
== Notes ==
+
=== File header ===
 +
The file header is 84 bytes of size and consists of:
 +
{| class="wikitable"
 +
|-
 +
! Offset
 +
! Size
 +
! Value
 +
! Description
 +
|-
 +
| 0
 +
| 4
 +
| 1
 +
| Unknown (Version?)
 +
|-
 +
| 4
 +
| 4
 +
|
 +
| Unknown
 +
|-
 +
| 8
 +
| 4
 +
|
 +
| File size
 +
|-
 +
| 12
 +
| 4
 +
|
 +
| Unknown (Record count?)
 +
|-
 +
| 16
 +
| 4
 +
|
 +
| Unknown (Record count?)
 +
|-
 +
| 20
 +
| 4
 +
|
 +
| Unknown (Records offset or file header size)
 +
|-
 +
|}
  
* "fdisk /mbr" restores the boot code in the [[Master boot record]], but not the partition itself.
+
== See Also ==
 
+
* [[SuperFetch]]
= Data Recovery =
+
 
+
; [[BringBack]]
+
: http://www.toolsthatwork.com/
+
: 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.
+
 
+
; [[ByteBack Data Recovery Investigative Suite v4.0]]
+
: http://www.toolsthatwork.com
+
: Now with UDMA, ATA & SATA support, memory management and greater ease and control of partition and [[Master boot record]] manipulations, ByteBack continues to uphold it's viability as the computer forensics and recovery application of professionals.
+
 
+
; [[RAID Reconstructor]]
+
: http://www.runtime.org/raid.htm
+
: Runtime Software's RAID Reconstructor will reconstruct [[RAID Level 0]] (Striping) and [[RAID Level 5]] drives.
+
 
+
; [[Salvation Data]]
+
: http://www.salvationdata.com
+
: Claims to have a program that can read the "[[bad blocks]]" of [[Maxtor]] drives with proprietary commands.
+
 
+
=Carving=
+
; [[DataLifter DataLifter® - File Extractor Pro]]
+
: http://www.datalifter.com/products.htm
+
 
+
; [[Foremost]]
+
: http://foremost.sourceforge.net/
+
Foremost is a console program to recover files based on their headers, footers, and internal data structures.
+
 
+
; [[Scalpel]]
+
: http://www.digitalforensicssolutions.com/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 eScripts that will do carving.
+
 
+
; CarvFs
+
A virtual filesystem (fuse) implementation that can provide carving tools
+
with the posibility 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.
+
: http://ocfa.sourceforge.net/libcarvpath/
+
 
+
; LibCarvPath
+
: http://ocfa.sourceforge.net/libcarvpath/
+
A shared library that allows carving tools to use zero-storage carving on
+
carvfs virtual files.
+
  
; PhotoRec
+
== External Links ==
: http://www.cgsecurity.org/wiki/PhotoRec
+
* [http://blog.rewolf.pl/blog/?p=214 Windows SuperFetch file format – partial specification], by ReWolf, October 5, 2011
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.
+
  
; RevIt
+
[[Category:File Formats]]
: https://www.uitwisselplatform.nl/projects/revit
+
RevIt (Revive It) 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.
+

Revision as of 01:28, 15 April 2014

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

MEMO file

Some of the Ag*.db files are MEMO files.

The MEMO file consists of:

  • file header
  • compressed blocks

File header

The file header is 84 bytes of size and consists of:

Offset Size Value Description
0 4 0x304D454D ("MEM0") or 0x4F4D454D ("MEMO") Signature
4 4 Uncompressed (total) data size

Compressed blocks

The file header is followed by compressed blocks:

Offset Size Value Description
0 4 Compressed data size
4 ... Compressed data

Uncompressed data

TODO

TRX file

The Ag*.db.trx files are TRX files.

Note that the following format specification is incomplete.

File header

The file header is 84 bytes of size and consists of:

Offset Size Value Description
0 4 1 Unknown (Version?)
4 4 Unknown
8 4 File size
12 4 Unknown (Record count?)
16 4 Unknown (Record count?)
20 4 Unknown (Records offset or file header size)

See Also

External Links