Book Image

Digital Forensics and Incident Response

By : Gerard Johansen
Book Image

Digital Forensics and Incident Response

By: Gerard Johansen

Overview of this book

Digital Forensics and Incident Response will guide you through the entire spectrum of tasks associated with incident response, starting with preparatory activities associated with creating an incident response plan and creating a digital forensics capability within your own organization. You will then begin a detailed examination of digital forensic techniques including acquiring evidence, examining volatile memory, hard drive assessment, and network-based evidence. You will also explore the role that threat intelligence plays in the incident response process. Finally, a detailed section on preparing reports will help you prepare a written report for use either internally or in a courtroom. By the end of the book, you will have mastered forensic techniques and incident response and you will have a solid foundation on which to increase your ability to investigate such incidents in your organization.
Table of Contents (18 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Chapter 3. Network Evidence Collection

The traditional focus of digital forensics has been to locate evidence on the host hard drive. Law enforcement officers interested in criminal activity such as fraud or child exploitation can find the vast majority of evidence required for prosecution on a single hard drive. In the realm of incident response though, it is critical that the focus goes far beyond a suspected compromised system. For example, there is a wealth of information to be obtained within the points along the flow of traffic from a compromised host to an external C2 server.

This chapter focuses on the preparation, identification, and collection of evidence that is commonly found among network devices and along the traffic routes within an internal network. This collection is critical during an incident where an external threat source is in the process of commanding internal systems or is in the process of pilfering data out of the network. Network-based evidence is also useful when...