EnCase I PDF Print E-mail

Day 1
Day one starts with an introduction to EnCase® Forensic v6 and examination methodology. Attendees are shown how to use EnCase Forensic to acquire a complete copy of the data from a removable disk in a forensically sound manner. The concept of digital evidence and how computers work (paying particular regard to the associated impact on forensic examination) are also included.

The main areas covered on Day 1 include:
• EnCase Forensic methodology
– Creating an EnCase Forensic case file
• Navigating within the EnCase Forensic environment
• EnCase Forensic concepts
– Safeguarding and preserving evidential data
• Understanding the concept of digital evidence and its
impact on an investigation
• The basics of acquiring a forensically sound copy of data
from a removable disk
• Understanding how computers work
– Hardware and associated terminology
– The CMOS, BIOS and boot sequence
– Interpreting binary and hexadecimal data
– The basics of text encoding

Day 2
Day two expands upon the information provided in day one, and begins with a detailed discussion of the FAT file systems as well as an overview of the NT file system.  Hard disk acquisition is covered, using both a forensically sound Linux CD, as well as the use of a hardware write-blocking device. Attendees will learn how to properly preview a computer system prior to acquisition as well as explore keyword searching and bookmarking of relevant data.  

The main areas covered on Day 2 include:
• NT/FAT File Systems
– How these file systems track data on their respective volumes
as well as what occurs when a file is created as well as deleted
• Acquisition of a hard disk
– Write-blocking technologies
– Acquisition using a forensically sound Linux operating system

» Drive-to-drive acquisition
» Network crossover-cable acquisition
– Previewing computer systems
– Creation of keywords and searching
– Basic bookmarking

Day 3
Day three includes more complex bookmarking of data. Instruction is given on the use of file signatures to properly identify file types. The principal and practical usage of digital fingerprints (hash value) to identify files of interest and exclude known files is also covered. Attendees will install external viewers within EnCase Forensic and learn how to copy data from within an evidence file.  Restoring an evidence file back to physical media is also covered.    

The main areas covered on Day 3 include:
• File types
– Discussion of the categories of files/folders and the icons
employed by EnCase Forensic
• Reviewing search hits and bookmarking
– A more detailed discussion of bookmarking
and related options
• Signature analysis
– An automated comparison of the displayed file
extension with the actual content of the file
• Hash analysis
– Using digital signatures to identify/exclude files
without visually examining each one
• Installing external viewers
• Detailed copy/UnErase options
• Restoring evidence
– Often required by court order; necessary to
recover data and/or examine the operation of the
host system in real-time

Day 4
Day four explores how to reacquire evidence in order to modify evidence-file parameters but still maintain data integrity. Attendees are given advice and guidance for archiving as well as instruction on how to restore and open an archived case. Attendees will observe first hand how EnCase Forensic can detect and identify any changes to the content of an evidence file. Practical instruction will then be given concerning the use of the Timeline viewer within EnCase Forensic and the recovery of deleted data from the
unallocated space of a computer disk. Following this the importance of proper evidence handling will be discussed with the attendees being shown examples of good practice in this area.   

The main areas covered on Day 4 include:
• Archiving and reopening an archived case
• Verification of an evidence file
• Timeline view
• Location and recovery of evidence in unallocated space
– Manually
– Using EnScript® programs
• The importance and practicalities of evidence handling