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

Collecting Network Evidence

The traditional focus of digital forensics has been on locating evidence on the suspect host's hard drive. Law enforcement officers interested in criminal activity such as fraud or child exploitation can find the evidence required for prosecution on a single hard drive. In the realm of incident response, though, it is critical that the focus goes far beyond a suspected compromised system. For example, there is a wealth of information that can be obtained within the hardware and software along with the flow of traffic from a compromised host to an external Command and Control (C2) server.

This chapter focuses on the preparation, identification, and collection of evidence that is commonly found among network devices and along traffic routes within an internal network. This collection is critical during incidents where an external threat source is...