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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22. Other Books You May Enjoy

Identifying flags and artifacts

By default, the 0 value is stored in the NtGlobalFlag field of the Process Environment Block (located at offset 0x68 on 32-bit Windows and 0xBC on 64-bit Windows):

Figure 5.11 – NtGlobalFlag

The value of the NtGlobalFlag variable is unaffected by the attachment of a debugger. On the other hand, if a debugger was responsible for creating the process, the following flags will be set:

FLG_HEAP_ENABLE_TAIL_CHECK (0x10)
FLG_HEAP_ENABLE_FREE_CHECK (0x20)
FLG_HEAP_VALIDATE_PARAMETERS (0x40)

To check whether a process has been started with a debugger, check the value of the NtGlobalFlag field in the PEB structure.

Practical example

Let’s observe the practical implementation and demonstration via a straightforward PoC code for anti-debugging:

/*
 * Malware Development for Ethical Hackers
 * hack.c - Anti-debugging tricks
 * detect debugger via NtGlobalFlag
 * author: @cocomelonc
*/
#include...

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

Table of Contents (23) Chapters

Identifying flags and artifacts

Practical example

Authors (1)

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

Table of Contents (23) Chapters

Identifying flags and artifacts

Practical example

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Authors (1)

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