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

Forensic Imaging

One critical task that incident response analysts often have to perform is imaging digital evidence. As we discussed in prior chapters, a great deal of evidence related to an incident can be found within log files, memory, and other areas that can be acquired relatively quickly. In some incidents, such as internal malicious activity (for example, fraud, industrial espionage, or data leakage), a more detailed search for evidence may be required. This evidence includes master file table entries, files, and specific user data that is contained on the hard drive of a suspect system. In the event that incident response analysts encounter such circumstances, they will be required to obtain an image of a suspect drive. As with any aspect of digital forensics, obtaining a usable and court-defensible image depends on the appropriate tools, techniques, and documentation...