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 intelligence methodology

Threat intelligence goes through a feedback cycle in order to keep pace with an ever-changing environment. While there are several methodologies that can place context around this challenge, one that is often utilized is the cycle of intelligence that is used by the U.S. Department of Defense.

This cycle provides the framework and a starting point for organizations to incorporate threat intelligence into their operations:

The phases are explained as follows:

  • Direction: Decision makers such as the CISO, information security personnel, or incident response analysts set down what threat intelligence is required. In determining the requirements for intelligence, it is a good practice to identify the users of each of the types of threat intelligence previously discussed. For example, a CISO might want threat intelligence about what trends in cyberattacks...