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Applied Network Security

You're reading from   Applied Network Security Proven tactics to detect and defend against all kinds of network attack

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Product type Paperback
Published in Apr 2017
Publisher
ISBN-13 9781786466273
Length 350 pages
Edition 1st Edition
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Authors (3):
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Michael McLafferty Michael McLafferty
Author Profile Icon Michael McLafferty
Michael McLafferty
Warun Levesque Warun Levesque
Author Profile Icon Warun Levesque
Warun Levesque
Arthur Salmon Arthur Salmon
Author Profile Icon Arthur Salmon
Arthur Salmon
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Toc

Table of Contents (18) Chapters Close

Preface 1. Introduction to Network Security FREE CHAPTER 2. Sniffing the Network 3. How to Crack Wi-Fi Passwords 4. Creating a RAT Using Msfvenom 5. Veil Framework 6. Social Engineering Toolkit and Browser Exploitation 7. Advanced Network Attacks 8. Passing and Cracking the Hash 9. SQL Injection 10. Scapy 11. Web Application Exploits 12. Evil Twins and Spoofing 13. Injectable Devices 14. The Internet of Things 15. Detection Systems 16. Advance Wireless Security Lab Using the Wi-Fi Pineapple Nano/Tetra 17. Offensive Security and Threat Hunting

What is a hash?

When hackers talk about passing the hash, they are referring to the hashed value of the password that was obtained from an exploited device. The process of hashing a password works by utilizing a cryptographic algorithm that transforms plaintext into a fixed length string of characters. This string of characters is called a fingerprint. A method known as salting makes cracking a hashed password much harder. Salting a hashed password works by adding a random string of characters before the password is hashed. A hash is considered to be a one-way function, because it cannot be reversed.

Hash tables are often used to index data for fingerprinting. An example of an MD5 hash looks like this, 8743b52063cd84097a65d1633f5c74f5. An example of a salted MD5 hash is 01dfae6e5d4d90d9892622325959afbe:7050461. The seven numbers at the end of the string is a random set of numbers added before the hash string is...

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