Book Image

Learning Network Forensics

By : Samir Datt
Book Image

Learning Network Forensics

By: Samir Datt

Overview of this book

We live in a highly networked world. Every digital device—phone, tablet, or computer is connected to each other, in one way or another. In this new age of connected networks, there is network crime. Network forensics is the brave new frontier of digital investigation and information security professionals to extend their abilities to catch miscreants on the network. The book starts with an introduction to the world of network forensics and investigations. You will begin by getting an understanding of how to gather both physical and virtual evidence, intercepting and analyzing network data, wireless data packets, investigating intrusions, and so on. You will further explore the technology, tools, and investigating methods using malware forensics, network tunneling, and behaviors. By the end of the book, you will gain a complete understanding of how to successfully close a case.
Table of Contents (17 chapters)
Learning Network Forensics
About the Author
About the Reviewers

Acquiring the information and evidence

The stage is set, the objectives are clear, it is time for us to get started. As mentioned in the earlier chapters, we needed to have a plan in place; now is the time the plan goes in to action.

However, before we begin, we need to lay a strong emphasis on the way we go about acquiring the information and evidence. A tiny slip up in the way we handle this can have widespread ramifications. Therefore, we need to focus on how to handle this stage.

Important handling guidelines

As you have learned in the earlier chapters, digital evidence is extremely fragile. In fact, just like medicines, digital evidence comes with a expiration date. The impermanence of data in memory, periodicity of log rotation, volatile storage, degradation of data on media, and the malware itself contribute to the significant loss of valuable evidence unless it is gathered, stored, and handled with due care.

All the investigators need to consider the following points:

  • All actions that...