Book Image

Hands-On Network Forensics

By : Nipun Jaswal
2 (2)
Book Image

Hands-On Network Forensics

2 (2)
By: Nipun Jaswal

Overview of this book

Network forensics is a subset of digital forensics that deals with network attacks and their investigation. In the era of network attacks and malware threat, it’s now more important than ever to have skills to investigate network attacks and vulnerabilities. Hands-On Network Forensics starts with the core concepts within network forensics, including coding, networking, forensics tools, and methodologies for forensic investigations. You’ll then explore the tools used for network forensics, followed by understanding how to apply those tools to a PCAP file and write the accompanying report. In addition to this, you will understand how statistical flow analysis, network enumeration, tunneling and encryption, and malware detection can be used to investigate your network. Towards the end of this book, you will discover how network correlation works and how to bring all the information from different types of network devices together. By the end of this book, you will have gained hands-on experience of performing forensics analysis tasks.
Table of Contents (16 chapters)
Free Chapter
1
Section 1: Obtaining the Evidence
4
Section 2: The Key Concepts
8
Section 3: Conducting Network Forensics

Identifying rogue access points

Rogue access points are an increasing area of concern. The attackers perform a denial of service (DOS) attack on the legitimate router and set up a fake access point with the same SSID, forcing the stations to connect to the rogue access point. The attackers can set up a fake access point through a number of ways. Identifying these rogue APs is what we will look at next.

Obvious changes in the MAC address

Say that we have a rogue access point in the vicinity. Using airodump-ng to capture packets, we get the following:

We can see that we have two networks with similar configurations, and the only changes we can see for now is the BSSID (MAC address) and the MB (link speed). While the MB...