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Digital Forensics and Incident Response

Digital Forensics and Incident Response

By : Gerard Johansen
4.9 (15)
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Digital Forensics and Incident Response

Digital Forensics and Incident Response

4.9 (15)
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)
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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

Network evidence overview

Adversaries are bound to the same network protocols that govern normal network traffic. Here, adversarial techniques that can be identified by analyzing network data properly are addressed.

In Chapter 5 we focused on the various sources of evidence that network devices produce. Most of this evidence is contained within the variety of log files produced by switches, routers, and firewalls. Depending on the type of environment that responders find themselves in, this evidence source can be augmented with NetFlow data and full packet captures.

Once the various sources have been understood, it is important to focus on what logs, NetFlow, and packet captures can tell us about an incident. The following are several areas of focus where proper logging and evidence collection may provide additional context surrounding an incident, as well as potential data points when deriving root cause:

  • Reconnaissance and scanning behavior: There are a plethora of...

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