Difference between pages "QCOW Image Format" and "Category:Disk imaging"

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[[QEMU]] uses the '''QEMU Copy-On-Write (QCOW)''' files to store a disk image.
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<div style="margin-top:0.5em; border:2px solid #ff0000; padding:0.5em 0.5em 0.5em 0.5em; background-color:#dddddd; align:center;">
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'''Note:''' We're trying to use the same [[tool template]] for all devices. Please use this if possible.
 +
</div>
  
== MIME types ==
+
'''TODO: Not all of the following are tools, most are simply company names. The tools should have their own articles...'''
  
== File signature ==
+
= Hardware imagers =
QCOW files start with hexadecimal: 0x51 0x46 0x49 0xfb (ASCII: "QFI.")
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; [[DFL-DE Data Recovery Tool]]
 +
: Including three main modules: disk imaging modules, file recovery modules and automatic hdd repair modules, fixing both detected and undetected hard drives. http://www.datarecoverytools4u.com/product/data-extractor-dfl-de/.
 +
;[[Data Compass]]
 +
:A hardware and software tool by [[SalvationDATA]] that can image data from bad sectors, unstable heads and other drives.
 +
; [[DeepSpar Disk Imager]]
 +
: Handles Data Recovery Imaging issues, drive instability, and bad sectors. http://www.deepspar.com/products-ds-disk-imager.html  - Data Sheet and Whitepaper available for download from product web page.
 +
; [[ICS Solo3]]
 +
: Supports USB, Firewire and SCSI drives. http://www.icsforensic.com/
 +
; [[Logicube Talon]]
 +
: Supports USB
 +
; [[PSIClone]]
 +
: Built-in PATA, SATA, USB and write blocker. http://www.thepsiclone.com/
 +
: Enhanced Error Handling and Logging
 +
; [[Voom HardCopy III]]
 +
: Allows destination drive to be formatted in NTFS.
  
== File types ==
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= Unix-based imagers=
Currently there two are versions of the QCOW format; version 1 and 2. Version 2 is the preferred format.
+
  
== Contents ==
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; '''ewfacquire''', '''ewfacquirestream'''
The QCOW format is used to store storage media data, e.g. disk images.
+
: The tools '''ewfacquire''' and '''ewfacquiresteam''' are part of the [[libewf]] library package. They can create evidence files in the [[EnCase]] and [[FTK Imager]] .E0* (EWF-E01) and [[SMART]] .s0* (EWF-S01) formats. '''ewfacquire''' is intended to read from devices and '''ewfacquirestream''' from pipes. Both tools calculate an [[MD5]] hash on default while the data is being acquired. They are able to calculate a [[SHA1]] message digest as well, but because of compatibility with [[EnCase]] they only store the [[SHA1]] hash in the Extended EWF (EWF-X) format. '''ewfacquire''' and '''ewfacquirestream''' provide support for byte swapping of media bytes. This is useful for dealing with big endian media on and little endian architectures and vice versa. It also has intelligent error recovery.
 +
: [[libewf]]
  
The QCOW image file consists of:
+
; [[Adepto]]
* the file header
+
: http://www.e-fense.com/helix/
* the L1 table (cluster aligned)
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* the reference count table (cluster aligned)
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* reference count blocks
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* snapshot headers (8-byte aligned on cluster boundary)
+
* clusters containing:
+
** L2 tables
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** storage media data
+
  
The clusters are 512 bytes of size
+
; [[aimage]]
 +
: Part of the [[AFF]] system, [[aimage]] can create files is raw, AFF, AFD, or AFM formats. AFF and AFD formats can be compressed or uncompressed. [[aimage]]  can optionally compress and calculate [[MD5]] or [[SHA-1]] hash residues while the data is being copied. It has intelligent error recovery, similar to what is in [[ddrescue]].
  
== Encryption ==
+
; [[AIR]]
The QCOW2 format supports optional AES encryption
+
: AIR (Automated Image and Restore) is a GUI front-end to dd/dcfldd designed for easily creating forensic bit images.
 +
: http://air-imager.sourceforge.net/
  
== See Also ==
+
; [[dcfldd]]
* [[Disk Images]]
+
: A version of [[dd]] created by the [[Digital Computer Forensics Laboratory]]. [[dcfldd]] is an enhanced version of [[GNU]] dd with features useful for forensics and security, such as calculating [[MD5]] or [[SHA-1]] [[hash]]es on the fly and faster disk wiping.
  
== External Links ==
+
; [[dd]]
 +
: A program that converts and copies files, is one of the oldest [[Unix]] programs. I can copy data from any Unix "file" (including a [[raw partition]]) to any other Unix "file" (including a disk file or a raw partition). This is one of the oldest of the imaging tools, and produces [[raw image files]]. Extended into [[dcfldd]].
  
* [http://people.gnome.org/~markmc/qcow-image-format-version-1.html The QCOW Image Format], by [[Mark McLoughlin]], June 2006
+
; EnCase [[LinEn]]
* [http://people.gnome.org/~markmc/qcow-image-format.html The QCOW2 Image Format], by [[Mark McLoughlin]], September 2008
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: Linux-based version of EnCase's forensic imaging tool.
* [https://googledrive.com/host/0B3fBvzttpiiSSzlxcHFxRC0zYTA/QEMU%20Copy-On-Write%20file%20format.pdf QEMU Copy-On-Write file format], by the [[libqcow|libqcow project]], December 2010
+
  
== Tools ==
+
; GNU [[ddrescue]]
* [[libqcow]]
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: http://www.gnu.org/software/ddrescue/ddrescue.html
  
[[Category:File Formats]]
+
; [[dd_rescue]]
 +
: http://www.garloff.de/kurt/linux/ddrescue/
 +
: A tool similar to [[dd]], but unlike dd it will continue reading the next sector, if it stumbles over bad sectors it cannot read.
 +
 
 +
; iLook [[IXimager]]
 +
: The primary imaging tool for [[iLook]]. It is [[Linux]] based and produces compressed authenticatable [[image file]]s that may only be read in the iLook analysis tool.
 +
 
 +
; [[MacQuisition Boot CD]]
 +
: Provides software to safely image [[Macintosh]] drives.
 +
 
 +
; [[rdd]]
 +
: http://sourceforge.net/projects/rdd
 +
: Rdd is robust with respect to read errors and incorporates several other functions: MD5 and SHA-1 hashing, block hashing, entropy computation, checksumming, network transfer, and output splitting.
 +
 
 +
; [[sdd]]
 +
: Another [[dd]]-like tool. It is supposed to be faster in certain situations.
 +
 
 +
= Windows-based imagers =
 +
 
 +
; [[AccessData]]
 +
: Their ultimate tool lets you "READ, ACQUIRE, DECRYPT, ANALYZE and REPORT (R.A.D.A.R.)."
 +
 
 +
; [[ASR]]
 +
: A tool for [[imaging]] and analyzing disks.
 +
 
 +
; [[DIBS]]
 +
: Can image and convert many file formats. Also builds mobile toolkit.
 +
 
 +
; [[EnCase]]
 +
: Can image with out dongle plugged in. Only images to E0* file.
 +
 
 +
; [[FTK Imager]] by [[AccessData]]
 +
: Can image and convert many image formats. Including [[E0*]] (EWF-E01), s0* (EWF-S01) and [[dd]]. Also a free tool.
 +
 
 +
; [[Ghost]]
 +
: FTK can read forensic, uncompressed [[Ghost image]]s.
 +
 
 +
; [[iLook]]
 +
: The [[IRS]]'s set of forensic tools and utilities.  iLook V8 can image in Windows.
 +
 
 +
; [[Paraben]]
 +
: A complete set of tools for [[Windows]] (and [[handheld]]) products.
 +
 
 +
; [[ProDiscovery]]
 +
: Images and searches [[FAT12]], [[FAT16]], [[FAT32]] and all [[NTFS]] files.
 +
 
 +
; [[X-Ways Forensics]]
 +
: Has some limited imaging capabilities. The output is [[raw format]].
 +
 
 +
; [[X-Ways Replica]]
 +
: Performs [[hard disk]] [[cloning]] and imaging. The output is [[raw format]].
 +
 
 +
 
 +
[[Category:Tools]]
 +
 
 +
[[Category:Tools]]

Revision as of 00:32, 15 July 2013

Note: We're trying to use the same tool template for all devices. Please use this if possible.

TODO: Not all of the following are tools, most are simply company names. The tools should have their own articles...

Hardware imagers

DFL-DE Data Recovery Tool
Including three main modules: disk imaging modules, file recovery modules and automatic hdd repair modules, fixing both detected and undetected hard drives. http://www.datarecoverytools4u.com/product/data-extractor-dfl-de/.
Data Compass
A hardware and software tool by SalvationDATA that can image data from bad sectors, unstable heads and other drives.
DeepSpar Disk Imager
Handles Data Recovery Imaging issues, drive instability, and bad sectors. http://www.deepspar.com/products-ds-disk-imager.html - Data Sheet and Whitepaper available for download from product web page.
ICS Solo3
Supports USB, Firewire and SCSI drives. http://www.icsforensic.com/
Logicube Talon
Supports USB
PSIClone
Built-in PATA, SATA, USB and write blocker. http://www.thepsiclone.com/
Enhanced Error Handling and Logging
Voom HardCopy III
Allows destination drive to be formatted in NTFS.

Unix-based imagers

ewfacquire, ewfacquirestream
The tools ewfacquire and ewfacquiresteam are part of the libewf library package. They can create evidence files in the EnCase and FTK Imager .E0* (EWF-E01) and SMART .s0* (EWF-S01) formats. ewfacquire is intended to read from devices and ewfacquirestream from pipes. Both tools calculate an MD5 hash on default while the data is being acquired. They are able to calculate a SHA1 message digest as well, but because of compatibility with EnCase they only store the SHA1 hash in the Extended EWF (EWF-X) format. ewfacquire and ewfacquirestream provide support for byte swapping of media bytes. This is useful for dealing with big endian media on and little endian architectures and vice versa. It also has intelligent error recovery.
libewf
Adepto
http://www.e-fense.com/helix/
aimage
Part of the AFF system, aimage can create files is raw, AFF, AFD, or AFM formats. AFF and AFD formats can be compressed or uncompressed. aimage can optionally compress and calculate MD5 or SHA-1 hash residues while the data is being copied. It has intelligent error recovery, similar to what is in ddrescue.
AIR
AIR (Automated Image and Restore) is a GUI front-end to dd/dcfldd designed for easily creating forensic bit images.
http://air-imager.sourceforge.net/
dcfldd
A version of dd created by the Digital Computer Forensics Laboratory. dcfldd is an enhanced version of GNU dd with features useful for forensics and security, such as calculating MD5 or SHA-1 hashes on the fly and faster disk wiping.
dd
A program that converts and copies files, is one of the oldest Unix programs. I can copy data from any Unix "file" (including a raw partition) to any other Unix "file" (including a disk file or a raw partition). This is one of the oldest of the imaging tools, and produces raw image files. Extended into dcfldd.
EnCase LinEn
Linux-based version of EnCase's forensic imaging tool.
GNU ddrescue
http://www.gnu.org/software/ddrescue/ddrescue.html
dd_rescue
http://www.garloff.de/kurt/linux/ddrescue/
A tool similar to dd, but unlike dd it will continue reading the next sector, if it stumbles over bad sectors it cannot read.
iLook IXimager
The primary imaging tool for iLook. It is Linux based and produces compressed authenticatable image files that may only be read in the iLook analysis tool.
MacQuisition Boot CD
Provides software to safely image Macintosh drives.
rdd
http://sourceforge.net/projects/rdd
Rdd is robust with respect to read errors and incorporates several other functions: MD5 and SHA-1 hashing, block hashing, entropy computation, checksumming, network transfer, and output splitting.
sdd
Another dd-like tool. It is supposed to be faster in certain situations.

Windows-based imagers

AccessData
Their ultimate tool lets you "READ, ACQUIRE, DECRYPT, ANALYZE and REPORT (R.A.D.A.R.)."
ASR
A tool for imaging and analyzing disks.
DIBS
Can image and convert many file formats. Also builds mobile toolkit.
EnCase
Can image with out dongle plugged in. Only images to E0* file.
FTK Imager by AccessData
Can image and convert many image formats. Including E0* (EWF-E01), s0* (EWF-S01) and dd. Also a free tool.
Ghost
FTK can read forensic, uncompressed Ghost images.
iLook
The IRS's set of forensic tools and utilities. iLook V8 can image in Windows.
Paraben
A complete set of tools for Windows (and handheld) products.
ProDiscovery
Images and searches FAT12, FAT16, FAT32 and all NTFS files.
X-Ways Forensics
Has some limited imaging capabilities. The output is raw format.
X-Ways Replica
Performs hard disk cloning and imaging. The output is raw format.