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Mastering Kali Linux for Advanced Penetration Testing by Robert W. Beggs

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Chapter 3. Active Reconnaissance and Vulnerability Scanning

The objective of the reconnaissance phase is to gather as much information about the target as possible in order to facilitate the exploitation phase of the kill chain.

We have seen how passive reconnaissance, which is almost undetectable, can yield a significant amount of information about the target organization and its users.

Active reconnaissance builds on the results of open-source intelligence and passive reconnaissance, and focuses on using probes to identify the path to the target and the exposed attack surface of the target. In general, complex systems have a greater attack surface, and each surface may be exploited and then leveraged to support additional attacks.

Although active ...

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