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

Various VPN vulnerabilities & logging

Given the wide spread use of VPNs, extended functionality that they provide, economy of use, and their transparency to the user, it was just a matter of time before the bad guys began to target VPNs. Some of the reasons the VPNs are targeted include the following:

  • Users tend to use VPNs to transmit sensitive information. This is understandable as the common belief is that VPNs are secure.

  • VPNs usually have full and unrestricted access to the internal networks. Gaining access via a VPN provides full and unfettered access to the corporate networks.

  • VPNs provide anonymity from IDSs if they are configured to operate outside the VPN. Any bad guy who gains access to the VPN can hide in the encrypted tunnel and not be detected by the IDS.

  • VPNs are comparatively soft targets. This is because people tend to consider IPSec relatively secure and tend to spend resources hardening other network components.

So, what are the ways the VPNs can be compromised? Understanding...