Book Image

Kali Linux Cookbook

Book Image

Kali Linux Cookbook

Overview of this book

In this age, where online information is at its most vulnerable, knowing how to execute the same attacks that hackers use to break into your system or network helps you plug the loopholes before it's too late and can save you countless hours and money. Kali Linux is a Linux distribution designed for penetration testing and security auditing. It is the successor to BackTrack, the world's most popular penetration testing distribution. Discover a variety of popular tools of penetration testing, such as information gathering, vulnerability identification, exploitation, privilege escalation, and covering your tracks. Packed with practical recipes, this useful guide begins by covering the installation of Kali Linux and setting up a virtual environment to perform your tests. You will then learn how to eavesdrop and intercept traffic on wireless networks, bypass intrusion detection systems, and attack web applications, as well as checking for open ports, performing data forensics, and much more. The book follows the logical approach of a penetration test from start to finish with many screenshots and illustrations that help to explain each tool in detail. The Kali Linux Cookbook will serve as an excellent source of information for the security professional and novice alike!
Table of Contents (16 chapters)
Kali Linux Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Using ATI Stream


In this recipe, we will use ATI Stream to crack password hashes. ATI Stream is similar to CUDA in that it is a parallel computing platform that increases computing performance by harnessing the power of the graphics processing unit (GPU). As time has passed, GPU processing power has increased dramatically which allows us the ability to use it for our computational purposes. For demonstration purposes, we will use OclHashcat-plus to crack the passwords. OclHashcat comes in two versions: plus and lite. Both are included with

Kali Linux.

Getting ready

An ATI Stream supported graphics card is required to complete this exercise.

How to do it...

Let's begin the process by working with OclHashcat-plus.

  1. Open a terminal window and change to the directory that contains OclHashcat:

    Cd /usr/share/oclhashcat-plus
    
  2. Execute the command to launch the oclHashcat-lite help file.

    ./oclHashcat-plus64.bin –help
    
  3. The syntax for running OclHashcat is in the form of oclHashcat-plus64.bin [options] hash...