Introduction to Digital Forensics

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Overview

Introduction to digital forensics is designed to help commercial and government organizations collect, preserve and report on digital artefacts in a way which is suitable for use in investigations.
The course covers the broad topics essential to the digital forensics disciplines. It sets out a framework for investigations, covering the best practice as described by The National Police Chiefs' Council (NPCC) formally ACPO guidelines. Forensic fundamentals will be covered as well as the use of open source forensic tools. The data will be then analysed and an example report produced.

Participants to this course learn about the methods to identify, preserve, analysis and report on digital artefacts. Using a mixed approach of fundamentals and open source software, delegates will be able to select suitable tools and report on their findings in an evidential way.

The introduction to digital forensic course audience includes all teams across the IT, Security, Internal Audit, Law Enforcement and Government.

Objectives

  • The purpose, benefits, and key terms of digital forensics.
  • Describe and adhere to the principles of the forensic framework
  • Understand the importance of the chain of custody
  • Demonstrate a basic knowledge of key locations in different operating systems
  • Identify how different file systems represent files and how they deal with deletion etc.
  • Understand where timestamps and other meta data comes from
  • Have knowledge of the legal framework in which they operate, and the expected level of ethical behaviour expected.
  • Reporting and 5x5x5 procedures.

Syllabus

Module 1: Intro to Digital forensic

  • Describe what digital forensics is
  • Identify which crimes use computer, cyber crime/ cyber enabled crime
  • What skills should a computer forensic expert have?
  • Introduce the forensic framework,
  • Collection
  • Examination
  • Analysis
  • Reporting
  • Extended Framework: Collection authority and legislation for digital evidence
  • Module 2: Forensic fundamentals

  • What is data and how is it represented in a computer?
  • Create a .txt and examine in a hex editor
  • Discuss number systems Binary and Hex
  • Look at different files, compare a word document with the same text as the .txt file from a)
  • What is a digital device and how do we collect its data?
  • Memory capture -brief at this stage
  • Look at Hard drives
  • What does a hard drive look like? (inc flash)
  • History CHS and LBA addressing
  • Use of encryption on equipment and how that effects the investigation
  • Module 3: Famework: Collection

  • Crime scene management
  • Recording the scene and documenting your actions
  • To switch off or not: discuss the issue and create a first responders flow chart
  • Safe removal of hard drives
  • Other media, 'pen' drives, optical media and other removables
  • Cloud based data
  • Mobile in brief on the air wiping
  • Module 4: Examination 1: Data acquisition and preserving evidence for court

  • Write blocking and disk imaging
  • Alternative methods of disk imaging
  • Principles of hashing
  • Module 5: Examination 2: File system Analysis

  • Demonstrate tools to mount the image
  • Describe how to identify and examine the file system
  • Look how different file system represent data on disk
  • Overview of FAT and NTFS
  • Look at the way deleted files are handled
  • Describe how to identify Operating systems
  • Look at default locations for user data
  • Overview of the windows registry and useful locations for data
  • Module 6: Analysis

  • Levels of persistence and what it means evidently e.g 'live'; 'deleted', 'over-written'
  • Time lines
  • Putting the suspect 'in front of the keyboard'
  • Module 7: Reporting forensic findings and digital intelligence

  • Understanding the scope of the investigation
  • Tone and style backing up the substance
  • An understanding of 'true' and how information can be presented in a neutral way
  • Overview of digital intelligence including open source
  • Module 8: Legal framework

  • Identify what authority the investigation is being performed
  • Understand the bounds of the investigation as defined in the scope
  • Module 9: Mobile Forensics: introduction

  • Handling of mobile devices to preserve data
  • Physical and logical analysis of mobile devices
  • Module 10: E-discovery: introduction

  • What is E-discovery?
  • Review of E-discovery tools and techniques.
  • Training provider

    Teaching mode: Classroom - Instructor Led
    Duration: 5 days
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