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Mastering Malware Analysis

You're reading from   Mastering Malware Analysis A malware analyst's practical guide to combating malicious software, APT, cybercrime, and IoT attacks

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Product type Paperback
Published in Sep 2022
Publisher Packt
ISBN-13 9781803240244
Length 572 pages
Edition 2nd Edition
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Authors (2):
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Amr Thabet Amr Thabet
Author Profile Icon Amr Thabet
Amr Thabet
Alexey Kleymenov Alexey Kleymenov
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Alexey Kleymenov
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Toc

Table of Contents (20) Chapters Close

Preface 1. Part 1 Fundamental Theory
2. Chapter 1: Cybercrime, APT Attacks, and Research Strategies FREE CHAPTER 3. Chapter 2: A Crash Course in Assembly and Programming Basics 4. Part 2 Diving Deep into Windows Malware
5. Chapter 3: Basic Static and Dynamic Analysis for x86/x64 6. Chapter 4: Unpacking, Decryption, and Deobfuscation 7. Chapter 5: Inspecting Process Injection and API Hooking 8. Chapter 6: Bypassing Anti-Reverse Engineering Techniques 9. Chapter 7: Understanding Kernel-Mode Rootkits 10. Part 3 Examining Cross-Platform and Bytecode-Based Malware
11. Chapter 8: Handling Exploits and Shellcode 12. Chapter 9: Reversing Bytecode Languages – .NET, Java, and More 13. Chapter 10: Scripts and Macros – Reversing, Deobfuscation, and Debugging 14. Part 4 Looking into IoT and Other Platforms
15. Chapter 11: Dissecting Linux and IoT Malware 16. Chapter 12: Introduction to macOS and iOS Threats 17. Chapter 13: Analyzing Android Malware Samples 18. Index 19. Other Books You May Enjoy

.NET explained

.NET languages (mainly C# and VB.NET) are languages that were designed by Microsoft to be cross-platform. The corresponding source code is compiled into a bytecode language, originally named Microsoft Intermediate Language (MSIL), which is now known as Common Intermediate Language (CIL). This language gets executed by the Common Language Runtime (CLR), which is an application virtual machine that provides memory management and exception handling.

.NET file structure

The .NET file structure is based on the PE structure that we described in Chapter 3, Basic Static and Dynamic Analysis for x86/x64. The .NET structure starts with a PE header that contains the last but one entry in the data directory pointing to .NET’s special CLR header (COR20 header).

.NET COR20 header

The COR20 header starts after 8 bytes of the .text section and contains basic information about the .NET file, as shown in the following screenshot:

Figure 9.2 –...

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