Book Image

Digital Forensics and Incident Response - Third Edition

By : Gerard Johansen
5 (1)
Book Image

Digital Forensics and Incident Response - Third Edition

5 (1)
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)
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

EDR for threat hunting

A group of tools that greatly aid in threat hunting is EDR tools. These tools build on the existing methodology of antivirus platforms. Many of these platforms also have the ability to search across the enterprise for specific IOCs and other data points, allowing threat hunt teams to search an extensive number of systems for any matching IOCs. These tools should be leveraged extensively during a threat hunt.

This type of functionality may be out of the budget of some organizations. In that case, we can use the previously discussed tool Velociraptor for threat hunting as well. In this case, let’s look at a threat hunt where the hypothesis is that a previously unidentified threat actor is using RDP to connect to internal systems as their initial foothold:

  1. To start, log into Velociraptor and click on the target symbol in the far-left column. This will open up the threat hunting page.

Figure 18.4 – Configuring a...