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Mastering Malware Analysis

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

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Product type Paperback
Published in Jun 2019
Publisher Packt
ISBN-13 9781789610789
Length 562 pages
Edition 1st Edition
Languages
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Authors (2):
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Alexey Kleymenov Alexey Kleymenov
Author Profile Icon Alexey Kleymenov
Alexey Kleymenov
Amr Thabet Amr Thabet
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Amr Thabet
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Toc

Table of Contents (18) Chapters Close

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

Getting the required APIs from Kernel32.dll

For the shellcode to be able to access the kernel32.dll's APIs, it should parse its export table. The export table consists of three arrays. The first array is AddressOfNames, which contains the names of the APIs inside the DLL file. The second array is AddressOfFunctions, which contains the relative addresses (RVAs) of all of these APIs:

Figure 6: Export table structure (the numbers here are not real and have been provided as an example)

However, the issue here in these two arrays is that they are aligned with a different alignment. For example, GetProcAddress could be in the third item in the AddressOfNames, but it's in the fifth item in the AddressOfFunctions.

To handle this issue, Windows created a third array named AddressOfNameOrdinals. This array has the same alignment as AddressOfNames and contains the index of every item in the AddressOfFunctions. Note that AddressOfFunctions and AddressOfNameOrdinals have more items than...

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