Network Defense and Countermeasures: Principles and Practices, 4th Edition

Chapter 10

Defending Against Trojan Horses and Phishing

Chapter Objectives

After reading this chapter and completing the exercises, you will be able to do the following:

• Describe Trojan horses.

• Take steps to prevent Trojan horse attacks.

• Describe phishing.

• Defend against phishing attacks.

Introduction

Chapter 2, “Types of Attacks,” introduced Trojan horses and the threat they pose to a network, and Chapter 8, “Operating System Hardening,” expanded upon that. Trojan horse programs are a common threat for any system connected to the Internet. They are a particular problem if your users download software, screen savers, or documents from the Internet. Trojan horses are not quite as widespread as virus attacks or DoS attacks, but they are certainly ...