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Learning Network Forensics

You're reading from Learning Network Forensics Identify and safeguard your network against both internal and external threats, hackers, and malware attacks

Product type Paperback

Published in Feb 2016

Publisher

ISBN-13 9781782174905

Length 274 pages

Edition 1st Edition

Tools

Wireshark

Concepts

Forensics

Author (1):

Samir Datt

View More author details

Table of Contents (12) Chapters

Preface

1. Becoming Network 007s FREE CHAPTER

2. Laying Hands on the Evidence

3. Capturing & Analyzing Data Packets

4. Going Wireless

5. Tracking an Intruder on the Network

6. Connecting the Dots – Event Logs

7. Proxies, Firewalls, and Routers

8. Smuggling Forbidden Protocols – Network Tunneling

9. Investigating Malware – Cyber Weapons of the Internet

10. Closing the Deal – Solving the Case

Index

Collecting network traffic using Wireshark

While tcpdump is a cool tool to capture network traffic, Wireshark is widely used when it comes to network forensic investigations. In this section, we will focus on installing and using Wireshark to capture network traffic.

Wireshark is available for most of the OS, including Windows, Mac OS, and most flavors of Linux.

It is available for free download at https://www.wireshark.org/download.html.

Using Wireshark

Install Wireshark using the Ubuntu Software Center, as shown in the following screenshot:

Using Wireshark

Run Wireshark with network privileges either directly or using the terminal to start capturing packets, as shown in the following screenshot:

Using Wireshark

Configure according to network topology and other specific details using the Capture Options, as shown in the following screenshot:

Using Wireshark

To get started, all we need to do is select an interface to start capturing packets from. Let's select eth0, as follows:

Using Wireshark

When we select an interface to start capturing packets (eth0...

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Authors (1)

Datt

Datt

Samir Datt has been dabbling with digital investigations since 1988, which was around the time he solved his first case with the help of an old PC and Lotus 123. He is the Founder CEO of Foundation Futuristic Technologies (P) Ltd, better known as ForensicsGuru.com. He is widely credited with evangelizing computer forensics in the Indian subcontinent and has personally trained thousands of law enforcement officers in the area. He has the distinction of starting the computer forensics industry in South Asia and setting up India's first computer forensic lab in the private sector. He is consulted by law enforcement agencies and private sector on various technology-related investigative issues. He has extensive experience in training thousands of investigators as well as examining a large number of digital sources of evidence in both private and government investigations.

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