Book Image

Digital Forensics and Incident Response - Third Edition

By : Gerard Johansen
5 (1)
Book Image

Digital Forensics and Incident Response - Third Edition

5 (1)
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 third edition will help you perform cutting-edge digital forensic activities and incident response with a new focus on responding to ransomware attacks. After covering the fundamentals of incident response that are critical to any information security team, you’ll explore incident response frameworks. From understanding their importance to creating a swift and effective response to security incidents, the book will guide you using examples. Later, you’ll cover digital forensic techniques, from acquiring evidence and examining volatile memory through to hard drive examination and network-based evidence. You’ll be able to apply these techniques to the current threat of ransomware. 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 be able to investigate and report unwanted security breaches and incidents in your organization.
Table of Contents (28 chapters)
1
Part 1: Foundations of Incident Response and Digital Forensics
6
Part 2: Evidence Acquisition
11
Part 3: Evidence Analysis
17
Part 4: Ransomware Incident Response
20
Part 5: Threat Intelligence and Hunting
Appendix

Threat hunting overview

Threat hunting is a developing discipline, driven in large part by the availability of threat intelligence along with tools, such as Endpoint Detection and Response (EDR) and SIEM platforms, that can be leveraged to hunt for threats at the scale of today’s modern enterprise architectures. What has developed out of this is specific working cycles and maturity models that can guide organizations through the process of starting and executing a threat hunting program.

Threat hunt cycle

Threat hunting, like incident response, is a process-driven exercise. There is not a clearly defined and accepted process in place, but there is a general sequence that threat hunting takes that provides a process that can be followed. The following diagram combines the various stages of a threat hunt into a process that guides threat hunters through the various activities to facilitate an accurate and complete hunt:

Figure 18.1 – Threat hunt...