Book Image

Python Penetration Testing Cookbook

By : Rejah Rehim
Book Image

Python Penetration Testing Cookbook

By: Rejah Rehim

Overview of this book

Penetration testing is the use of tools and code to attack a system in order to assess its vulnerabilities to external threats. Python allows pen testers to create their own tools. Since Python is a highly valued pen-testing language, there are many native libraries and Python bindings available specifically for pen-testing tasks. Python Penetration Testing Cookbook begins by teaching you how to extract information from web pages. You will learn how to build an intrusion detection system using network sniffing techniques. Next, you will find out how to scan your networks to ensure performance and quality, and how to carry out wireless pen testing on your network to avoid cyber attacks. After that, we’ll discuss the different kinds of network attack. Next, you’ll get to grips with designing your own torrent detection program. We’ll take you through common vulnerability scenarios and then cover buffer overflow exploitation so you can detect insecure coding. Finally, you’ll master PE code injection methods to safeguard your network.
Table of Contents (15 chapters)

CPU instructions

When an application is written in high-level languages is compiled, the language instructions will be converted to assembly language corresponding to it. This is the code that machines can understand. With the debugger we can view each assembly instruction.

How to do it...

Follow the steps to understand the usage in debuggers:

  1. Open an application in the Immunity Debugger.
  2. We can view the opcode in the top-left pane of the Immunity Debugger.
  3. We can step through the instructions one by one and see the results by pressing F7:

Here is how the instructions pane looks:

This will update the corresponding registers in the top-right pane. Like this, we can follow the execution of each CPU instruction within Immunity...