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

Leveraging search engines for OSINT

The internet is the largest network in the world, and navigating and finding resources can be challenging at times, especially if we don’t know the domain name or Uniform Resource Locator (URL) of a specific website. To help us quickly find the right domain name for a website, we can use an internet search engine. Internet search engines crawl and index everything on the internet, which enables a person to perform an internet search using keywords to find all relevant resources while providing safe results.

Without internet search engines, a person needs to know the right domain name, hostname, or URL for the website they want to visit. For instance, imagine a world without internet search engines; each person would need to keep an up-to-date record of each new website and its IP address. If an organization changed its domain name, perhaps due to rebranding, the information would need to be shared with all internet subscribers. However...