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

Learning to handle the evidence

Once the sources of evidence are identified, the next critical aspect is to learn how to handle the evidence. In the previous chapter, we saw that forensics involves investigative processes used in a manner that is acceptable to a court of law.

Therefore, we need to ensure that all processes followed by us do not compromise the evidentiary value of the collected information.

Rules for the collection of digital evidence

Digital evidence, by its very nature, is fragile. It is extremely easy to tamper with and equally easy to destroy it.

In fact, in the early days, one of the key features that made computers so popular was the fact that a document that was made in a word processor could be very easily modified and mass produced.

In an evidentiary world, this means that whenever we handle the evidence or transport digital evidence, we may cause it to change. In fact, we may cause the digital evidence to change even when viewing it. Digital evidence may also degrade...