Book Image

Mastering Kali Linux for Advanced Penetration Testing – Fourth Edition - Fourth Edition

By : Vijay Kumar Velu
Book Image

Mastering Kali Linux for Advanced Penetration Testing – Fourth Edition - Fourth Edition

By: Vijay Kumar Velu

Overview of this book

Remote working has given hackers plenty of opportunities as more confidential information is shared over the internet than ever before. In this new edition of Mastering Kali Linux for Advanced Penetration Testing, you’ll learn an offensive approach to enhance your penetration testing skills by testing the sophisticated tactics employed by real hackers. You’ll go through laboratory integration to cloud services so that you learn another dimension of exploitation that is typically forgotten during a penetration test. You'll explore different ways of installing and running Kali Linux in a VM and containerized environment and deploying vulnerable cloud services on AWS using containers, exploiting misconfigured S3 buckets to gain access to EC2 instances. This book delves into passive and active reconnaissance, from obtaining user information to large-scale port scanning. Building on this, different vulnerability assessments are explored, including threat modeling. See how hackers use lateral movement, privilege escalation, and command and control (C2) on compromised systems. By the end of this book, you’ll have explored many advanced pentesting approaches and hacking techniques employed on networks, IoT, embedded peripheral devices, and radio frequencies.
Table of Contents (17 chapters)
15
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16
Index

Large-scale scanning

In the case of testing bigger organizations with multiple class B/C IP ranges, large-scale scanning is engaged. For example, with a global company, often, a number of IP blocks exist as part of external internet facing. As mentioned earlier in Chapter 2, Open-Source Intelligence and Passive Reconnaissance, attackers do not have time limitations to scan, but penetration testers do. Pentesters can engage multiple tools to perform the activity; Masscan is one such tool that would be engaged to scan large-scale IP blocks to quickly analyze the live hosts in the target network. Masscan is installed in Kali by default.

The biggest advantage of Masscan is the randomization of hosts, ports, speed, flexibility, and compatibility. Figure 3.22 provides a Class C scanning network within a few seconds to complete and identify the available HTTP service on port 80 and services running on the target hosts:

Figure 3.22: Running masscan on the class-c IP range to...