Book Image

Reconnaissance for Ethical Hackers

By : Glen D. Singh
5 (1)
Book Image

Reconnaissance for Ethical Hackers

5 (1)
By: Glen D. Singh

Overview of this book

This book explores reconnaissance techniques – the first step in discovering security vulnerabilities and exposed network infrastructure. It aids ethical hackers in understanding adversaries’ methods of identifying and mapping attack surfaces, such as network entry points, which enables them to exploit the target and steal confidential information. Reconnaissance for Ethical Hackers helps you get a comprehensive understanding of how threat actors are able to successfully leverage the information collected during the reconnaissance phase to scan and enumerate the network, collect information, and pose various security threats. This book helps you stay one step ahead in knowing how adversaries use tactics, techniques, and procedures (TTPs) to successfully gain information about their targets, while you develop a solid foundation on information gathering strategies as a cybersecurity professional. The concluding chapters will assist you in developing the skills and techniques used by real adversaries to identify vulnerable points of entry into an organization and mitigate reconnaissance-based attacks. By the end of this book, you’ll have gained a solid understanding of reconnaissance, as well as learned how to secure yourself and your organization without causing significant disruption.
Table of Contents (15 chapters)
1
Part 1: Reconnaissance and Footprinting
8
Part 2: Scanning and Enumeration

Wireless reconnaissance

Wireless reconnaissance enables ethical hackers and penetration testers to identify their target’s wireless network and determine associated clients, network settings, operating frequencies and channels, and the approximate distance between you and the access point.

When an access point is powered on, it sends beacons to advertise its presence and network information to nearby wireless clients. Within these beacons, the access point inserts the network name or Service Set Identifier (SSID), which helps clients to identify one wireless network from the other. Once a client is connected (associated) with a wireless network, it automatically saves the network information and password within its Preferred Network List (PNL). From then on, when wireless capabilities are enabled on the client, it will send probes to seek any of the saved networks from the PNL; once a network is found and within range, the client will attempt to automatically establish an...