You're reading from Malware Development for Ethical Hackers Learn how to develop various types of malware to strengthen cybersecurity

Product type Paperback

Published in Jun 2024

Publisher Packt

ISBN-13 9781801810173

Length 390 pages

Edition 1st Edition

Concepts

Cybersecurity

Author (1):

Mr. Zhassulan Zhussupov

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Table of Contents (23) Chapters

Preface

1. Part 1: Malware Behavior: Injection, Persistence, and Privilege Escalation Techniques FREE CHAPTER

2. Chapter 1: A Quick Introduction to Malware Development

3. Chapter 2: Exploring Various Malware Injection Attacks

4. Chapter 3: Mastering Malware Persistence Mechanisms

5. Chapter 4: Mastering Privilege Escalation on Compromised Systems

6. Part 2: Evasion Techniques

7. Chapter 5: Anti-Debugging Tricks

8. Chapter 6: Navigating Anti-Virtual Machine Strategies

9. Chapter 7: Strategies for Anti-Disassembly

10. Chapter 8: Navigating the Antivirus Labyrinth – a Game of Cat and Mouse

11. Part 3: Math and Cryptography in Malware

12. Chapter 9: Exploring Hash Algorithms

13. Chapter 10: Simple Ciphers

14. Chapter 11: Unveiling Common Cryptography in Malware

15. Chapter 12: Advanced Math Algorithms and Custom Encoding

16. Part 4: Real-World Malware Examples

17. Chapter 13: Classic Malware Examples

18. Chapter 14: APT and Cybercrime

19. Chapter 15: Malware Source Code Leaks

20. Chapter 16: Ransomware and Modern Threats

21. Index

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Exploring advanced math algorithms in malware

In previous chapters, we looked at popular and well-studied encoding and encryption algorithms such as XOR, AES, RC4, and Base64. In recent years, I’ve wondered, “What if we used other advanced encryption algorithms that are based on simple ones?” I decided to conduct research and apply various encryption algorithms that were presented to the public in the '80s and '90s and see how using them affects the VirusTotal score result. So, can they be used in malware development? Let’s look at some algorithms and cover some practical examples of payload encryption.

Tiny encryption algorithm (TEA)

Tiny encryption algorithm (TEA) is a symmetric-key block cipher algorithm that operates on 64-bit blocks and uses a 128-bit key. The basic flow of the TEA encryption algorithm is as follows:

Key expansion: The 128-bit key is split into two 64-bit subkeys.
Initialization: The 64-bit plaintext block...