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

Wireshark

Wireshark is a Unix or Windows packet capture and analysis tool. Unlike tcpdump or tools such as RawCap, Wireshark is a GUI-based tool and includes not only packet capture but also analysis features. As a result, Wireshark may be difficult to deploy rapidly during an incident, as the program has to be installed. Furthermore, the tool is only supported on Windows or macOS. Installing Wireshark on a Linux system requires a bit more effort. The one distinct advantage that Wireshark has over command-line options is that incident response analysts can perform a detailed inspection of the traffic as it is being captured. Wireshark can be run on the system itself or on a USB drive. Once installed, it must be run as an administrator. To perform a packet capture with Wireshark, the following process is used:

  1. The first step is to select an interface where Wireshark will capture traffic:

Figure 5.11 – Wireshark Capture interfaces

In the...