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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

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Product type Paperback
Published in Feb 2016
Publisher
ISBN-13 9781782174905
Length 274 pages
Edition 1st Edition
Concepts
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Author (1):
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Samir Datt Samir Datt
Author Profile Icon Samir Datt
Samir Datt
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Table of Contents (12) Chapters Close

Preface 1. Becoming Network 007s 2. Laying Hands on the Evidence FREE CHAPTER 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

Identifying sources of evidence


For any successful investigation, it is extremely important to successfully collect, collate, preserve, and analyze the evidence.

To begin with, we need to identify the sources of evidence for any investigation.

The sources of evidence can be easily divided into the following two categories:

Evidence obtainable from within the network

Consider the following image:

This can include the following:

  • Evidence from network & device logs:

    A log is a record of all the activities and outcomes performed by a device or by outside agents on a device. Thus, all the incoming or outgoing events are logged on a system. Logs are a crucial part of the investigation ecosystem.

    Devices such as firewalls, intrusion prevention and detection systems, anti-virus servers, and so on generate logs. Other logs include operating system event logs, application logs, and so on.

  • Network traffic:

    As discussed in the previous chapter, network traffic is transmitted in packets. The data is split...

You have been reading a chapter from
Learning Network Forensics
Published in: Feb 2016
Publisher:
ISBN-13: 9781782174905
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