Difference between pages "Advanced Steganography Demystifying Steganography Investigation" and "BitLocker Disk Encryption"

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(New page: '''Live Investigator Training''' [https://www.wetstonetech.com/cgi/shop.cgi?view,7] == == Live Investigator Training is designed to teach students the techniques for acquiring digital...)
 
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'''Live Investigator Training''' [https://www.wetstonetech.com/cgi/shop.cgi?view,7]
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'''BitLocker Disk Encryption''' (BDE) is [[Full Volume Encryption]] solution by [[Microsoft]] first included with the Enterprise and Ultimate editions of [[Windows|Windows Vista]]. It is also present in [[Windows|Windows 7]] along with a system for encrypting removable storage media devices, like [[USB]], which is called BitLocker To Go. Unlike previous versions of BitLocker, BitLocker To Go allows the user to protect volumes with a password or smart card.
  
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== BitLocker ==
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Volumes encrypted with BitLocker will have a different signature than the standard [[NTFS]] header. Instead, they have in their volume header (first sector): <tt>2D 46 56 45 2D 46 53 2D</tt> or, in ASCII, <tt>-FVE-FS-</tt>.
  
==  ==
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These volumes can be identified by the BitLocker GUID/UUID: 4967d63b-2e29-4ad8-8399-f6a339e3d00.
  
Live Investigator Training is designed to teach students the techniques for acquiring digital evidence from a running suspect’s system in an overt or covert manner. This includes acquiring running process state, open handles, process/port associations, system logs, installed devices, physical and logical drives, network statistics and configuration, user accounts and logged in users. Class participants will also learn how to acquire volatile memory and/or registry snapshots from the target host. This could include recently used applications and documents, recently visited web sites, chat logs and e-mails. Physical RAM capture may contain vital password and account information, remnants of visited web sites, recent messages, phone numbers, e-mail addresses and chat identities.
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The actual data on the encrypted volume is protected with either 128-bit or 256-bit [[AES]] and optionally diffused using an algorithm called Elephant. The key used to do the encryption, the Full Volume Encryption Key (FVEK) and/or TWEAK key, is stored in the BitLocker metadata on the protected volume. The FVEK and/or TWEAK keys are encrypted using another key, namely the Volume Master Key (VMK). Several copies of the VMK are also stored in the metadata. Each copy of the VMK is encrypted using another key, also know as key-protector key. Some of the key-protectors are:
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* TPM (Trusted Platform Module)
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* Smart card
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* recovery password
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* start-up key
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* clear key; this key-protector provides no protection
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* user password
  
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BitLocker has support for partial encrypted volumes.
  
'''Why Live Investigation?'''
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== BitLocker To Go ==
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Volumes encrypted with BitLocker To Go will have a hybrid encrypted volume, meaning that part of the volume is unencrypted and contains applications to unlock the volume and the other part of the volume is encrypted. The "discovery drive" volume contains BitLocker To Go Reader to read from encrypted volumes on versions of Microsoft [[Windows]] without BitLocker support.
  
As many corporation’s networks are becoming large and often geographically divers, it is imperative to practice a live investigation technique. LiveWire Investigator™ and it’s associated software bundle provides the capability of collecting and analyzing comprehensive information regarding evidence contained on ‘live-running’ devices.
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== manage-bde ==
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To view the BitLocker Drive Encryption (BDE) status on a running Windows system:
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<pre>
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manage-bde.exe -status
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</pre>
  
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To obtain the recovery password for volume C:
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<pre>
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manage-bde.exe -protectors -get C: -Type recoverypassword
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</pre>
  
'''Who Should Attend?'''
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Or just obtain the all “protectors” for volume C:
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<pre>
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manage-bde.exe -protectors -get C:
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</pre>
  
▫ Forensic Investigators
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== See Also ==
▫ Local, state and federal law enforcement
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* [[BitLocker:_how_to_image]]
▫ Private investigators
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* [[Defeating Whole Disk Encryption]]
▫ IT security professionals
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▫ Security auditors
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== External Links ==
  
'''Skills Learned'''
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* [http://www.nvlabs.in/archives/1-NVbit-Accessing-Bitlocker-volumes-from-linux.html NVbit : Accessing Bitlocker volumes from linux], 2008
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* Jesse D. Kornblum, [http://jessekornblum.com/publications/di09.html Implementing BitLocker for Forensic Analysis], ''Digital Investigation'', 2009
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* [http://en.wikipedia.org/wiki/BitLocker_Drive_Encryption Wikipedia entry on BitLocker]
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* [http://technet2.microsoft.com/WindowsVista/en/library/c61f2a12-8ae6-4957-b031-97b4d762cf311033.mspx?mfr=true Microsoft's Step by Step Guide]
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* [http://technet.microsoft.com/en-us/windowsvista/aa906017.aspx Microsoft Technical Overview]
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* [http://technet.microsoft.com/en-us/magazine/2009.05.win7.aspx An Introduction to Security in Windows 7]
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* [http://www.microsoft.com/whdc/system/platform/hwsecurity/BitLockerFAQ.mspx Microsoft FAQ]
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* [http://www.microsoft.com/downloads/details.aspx?FamilyID=131dae03-39ae-48be-a8d6-8b0034c92555&DisplayLang=en Microsoft Description of the Encryption Algorithm]
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* [http://secude.com/htm/801/en/White_Paper%3A_Cold_Boot_Attacks.htm Cold Boot Attacks, Full Disk Encryption, and BitLocker]
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* [http://technet.microsoft.com/en-us/library/hh831412.aspx What's New in BitLocker] in Windows 8
  
Upon completion of the course, students will have gained knowledge in the fundamentals of investigating a system in it’s running state to include...
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== Tools ==
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* [http://www.hsc.fr/ressources/outils/dislocker/ dislocker]
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* [[libbde]]
  
▫ Forensic network discovery
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[[Category:Disk encryption]]
▫ Evidence collection process
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[[Category:Windows]]
▫ Acquisition of volatile data
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▫ Automated audit trail
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▫ Forensic reporting
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Our trainers take you inside the minds of today’s criminals and students completeing the class will be able to execute a full investigation in the respective discipline. Participants proficiency in the above skills will be tested with certification exams.
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----
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'''Contact Information:'''
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1-877-WETSTONE ext 2
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www.wetstonetech.com [https://www.wetstonetech.com/index.html]
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Revision as of 01:00, 27 June 2013

BitLocker Disk Encryption (BDE) is Full Volume Encryption solution by Microsoft first included with the Enterprise and Ultimate editions of Windows Vista. It is also present in Windows 7 along with a system for encrypting removable storage media devices, like USB, which is called BitLocker To Go. Unlike previous versions of BitLocker, BitLocker To Go allows the user to protect volumes with a password or smart card.

Contents

BitLocker

Volumes encrypted with BitLocker will have a different signature than the standard NTFS header. Instead, they have in their volume header (first sector): 2D 46 56 45 2D 46 53 2D or, in ASCII, -FVE-FS-.

These volumes can be identified by the BitLocker GUID/UUID: 4967d63b-2e29-4ad8-8399-f6a339e3d00.

The actual data on the encrypted volume is protected with either 128-bit or 256-bit AES and optionally diffused using an algorithm called Elephant. The key used to do the encryption, the Full Volume Encryption Key (FVEK) and/or TWEAK key, is stored in the BitLocker metadata on the protected volume. The FVEK and/or TWEAK keys are encrypted using another key, namely the Volume Master Key (VMK). Several copies of the VMK are also stored in the metadata. Each copy of the VMK is encrypted using another key, also know as key-protector key. Some of the key-protectors are:

  • TPM (Trusted Platform Module)
  • Smart card
  • recovery password
  • start-up key
  • clear key; this key-protector provides no protection
  • user password

BitLocker has support for partial encrypted volumes.

BitLocker To Go

Volumes encrypted with BitLocker To Go will have a hybrid encrypted volume, meaning that part of the volume is unencrypted and contains applications to unlock the volume and the other part of the volume is encrypted. The "discovery drive" volume contains BitLocker To Go Reader to read from encrypted volumes on versions of Microsoft Windows without BitLocker support.

manage-bde

To view the BitLocker Drive Encryption (BDE) status on a running Windows system:

manage-bde.exe -status

To obtain the recovery password for volume C:

manage-bde.exe -protectors -get C: -Type recoverypassword

Or just obtain the all “protectors” for volume C:

manage-bde.exe -protectors -get C:

See Also

External Links

Tools