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

Analyzing Log Files

The Sherlock Holmes of France, Dr. Edmond Locard, was a pioneer in the field of forensic science. A criminologist and teacher, Locard developed techniques and methodologies that still inform forensic science today. One principle for which he is well known is Locard's exchange principle. This principle states that when a suspect interacts with a crime scene, they leave traces behind. In the physical world, this can include hair, fibers from clothing, blood, or skin, which is left on the various surfaces and objects within the crime scene. The crime scene itself also leaves traces on the suspect. Fibers from the carpet, dust, metal fragments, or glass from a broken window may make its way onto the suspect. Forensic science has developed more and more sophisticated practices and technology to find more and more minute traces.

Locard's work was centered...