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

Chapter 3. Capturing & Analyzing Data Packets


"Unless you capture the moment, it's gone!"

 --Samir Datt

In this chapter, you will learn to get your hands dirty by actually capturing and analyzing network traffic. We will start by understanding the network configuration that is required to capture data packets, including the concept of port mirroring, and then go on to using different software tools to capture and analyze network traffic with real-world scenarios of accessing data over the Internet and the resultant network capture.

The chapter will cover the following topics:

  • Tapping into network traffic

  • Packet sniffing and analysis using Wireshark

  • Packet sniffing and analysis using NetworkMiner

  • Case study – sniffing out an insider