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Practical Digital Forensics

You're reading from   Practical Digital Forensics Get started with the art and science of digital forensics with this practical, hands-on guide!

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Product type Paperback
Published in May 2016
Publisher
ISBN-13 9781785887109
Length 372 pages
Edition 1st Edition
Concepts
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Author (1):
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Richard Boddington Richard Boddington
Author Profile Icon Richard Boddington
Richard Boddington
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Table of Contents (12) Chapters Close

Preface 1. The Role of Digital Forensics and Its Environment 2. Hardware and Software Environments FREE CHAPTER 3. The Nature and Special Properties of Digital Evidence 4. Recovering and Preserving Digital Evidence 5. The Need for Enhanced Forensic Tools 6. Selecting and Analyzing Digital Evidence 7. Windows and Other Operating Systems as Sources of Evidence 8. Examining Browsers, E-mails, Messaging Systems, and Mobile Phones 9. Validating the Evidence 10. Empowering Practitioners and Other Stakeholders Index

Locating digital evidence

Locating evidence from the all-too-common large dataset requires some filtration of extraneous material, which has until recently been a mainly manual task of sorting the wheat from the chaff. But it is important to clear the clutter and noise of busy operating systems and applications, from which only a small amount of evidence really needs to be gleaned. This section describes the processes involved that practitioners follow in their endeavors to locate relevant material to assist an investigation.

Search processes

Search processes involve searching in a filesystem and inside files; common searches for files are based on:

  • Their names or patterns in their names
  • Keywords in their content
  • Temporal data (metadata), such as the last-accessed or last-written time

A pragmatic approach to the examination is necessary, where the onus is on the practitioner to create a list of keywords or search terms to cull specific, probative, and case-related information from very large...

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