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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

The sample is obfuscated using an obfuscator

There are many .NET obfuscators available. They are mostly used for key protection, but they are also commonly used by malware authors to protect their samples from reverse engineering. There are multiple tools for detecting known packers, for example, Detect It Easy (die), as you can see in the following screenshot:

Figure 12: Detect it Easy for detecting the obfuscator (ConfuserEx)

You can also use de4dot to detect the obfuscator by only running the de4dot.exe -d <sample> command or deobfuscate the sample using the de4dot.exe <sample> command.

For custom and unknown obfuscators, you will need to go through debugging and patching to deal with them. Before doing so, check different sources, if there are solutions or deobfuscators for it, or even if the obfuscator is actually open source (such as ConfuserEx). If the obfuscator is shareware, you may be able to communicate with them and get their aid to deobfuscate the sample (as...

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