Practical Hacking Techniques and Countermeasures

Viewed from the attacker's side, this book teaches computer security through hands-on lab exercises run on virtual machines. Each lab walks the reader through an attack from start to finish, showing the code, how it is built, and what it produces, with detailed screenshots to follow along. Because everything happens in a simulated environment, readers can test these techniques without damaging real systems or breaking the law. The lab manual format opens with setting up VMware Workstation and then moves into practical exercises.

The material covers social engineering, footprinting, and scanning tools early on. Later sections address spoofing, sniffing, password cracking, and the tools attackers use. The book also discusses wireless attacks, Trojans, man-in-the-middle attacks, and denial of service attacks. Its central idea is that understanding how an attack is conceived, prepared, and carried out makes it easier to defend against. The book aims to help readers design systems that resist attack and to strengthen the security of a personal computer or a corporate network.