Book Image

Password Cracking with Kali Linux

By : Daniel W. Dieterle
Book Image

Password Cracking with Kali Linux

By: Daniel W. Dieterle

Overview of this book

Unlock the secrets of Windows password security with "Password Cracking with Kali Linux," your essential guide to navigating password-cracking techniques. This book offers a comprehensive introduction to Windows security fundamentals, arming you with the knowledge and tools for effective ethical hacking. The course begins with a foundational understanding of password security, covering prerequisites, lab setup, and an overview of the journey ahead. You'll explore Kerberoasting, tools like Rubeus, Mimikatz, and various attack methods, providing a solid base for understanding password vulnerabilities. The course focuses on practical applications of password cracking, including wordlist generation using tools like Crunch and Hashcat, and exploring various attack strategies. You'll delve into John the Ripper and Hashcat functionalities, learning to identify hash types and crack complex passwords efficiently. The course wraps up with advanced techniques in Linux password cracking and defense strategies. You'll gain insights into creating leaderboards, achievements, and monetizing games, equipping you with skills to not just crack passwords but also secure systems effectively.
Table of Contents (15 chapters)
Free Chapter
1
Password Cracking with Kali Linux
2
Dedication
3
About the Author
4
Thank You
5
Contents
Using Cracked Passwords to Crack New Passwords
One of the best advanced cracking techniques is to use the passwords that were cracked as a wordlist, and then using them in combo attacks or running rules on them. This is easy to do by parsing the Hashcat cracked output file. The output file will have the original hash, a colon, and then the cracked password. All we need to do is remove the hash and colon, and then re-save the file as a new wordlist.
The Linux text manipulation commands are great for parsing wordlists. In particular the “cut” command. All you need to do is figure out where the hash & colon ends and then cut the passwords out and save them in a new file. In the wordlist example below, the passwords start at column 34.
     cut -c34-128 cracked.txt > crackedwl.txt
Another helpful technique when creating your own wordlists or combining existing ones is to sort & remove duplicates:
     sort wordlist...