Book Image

Digital Forensics and Incident Response - Second Edition

By : Gerard Johansen
Book Image

Digital Forensics and Incident Response - Second Edition

By: Gerard Johansen

Overview of this book

An understanding of how digital forensics integrates with the overall response to cybersecurity incidents is key to securing your organization's infrastructure from attacks. This updated second edition will help you perform cutting-edge digital forensic activities and incident response. After focusing on the fundamentals of incident response that are critical to any information security team, you’ll move on to exploring the incident response framework. From understanding its importance to creating a swift and effective response to security incidents, the book will guide you with the help of useful examples. You’ll later get up to speed with digital forensic techniques, from acquiring evidence and examining volatile memory through to hard drive examination and network-based evidence. As you progress, you’ll discover the role that threat intelligence plays in the incident response process. You’ll also learn how to prepare an incident response report that documents the findings of your analysis. Finally, in addition to various incident response activities, the book will address malware analysis, and demonstrate how you can proactively use your digital forensic skills in threat hunting. By the end of this book, you’ll have learned how to efficiently investigate and report unwanted security breaches and incidents in your organization.
Table of Contents (22 chapters)
Section 1: Foundations of Incident Response and Digital Forensics
Section 2: Evidence Acquisition
Section 3: Analyzing Evidence
Section 4: Specialist Topics

Threat hunt planning

Beginning a threat hunt does not require a good deal of planning, but there should be some structure as to how the threat hunt will be conducted, the sources of data, and the time period on which the threat hunt will focus. A brief written plan will address all of the key points necessary, and place all of the hunt team on the same focus area so that extraneous data that does not pertain to the threat hunt is minimized. The following are seven key elements that should be addressed in any plan:

  • Hypothesis: A one- or two-sentence hypothesis that was discussed earlier. This hypothesis should be clearly understood by all the hunt team members.
  • MITRE ATT&CK tactic(s): In the previous chapter, there was a discussion about the MITRE ATT&CK framework and its application to threat intelligence and incident response. In this case, the threat hunt should include...