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Windows APT Warfare

You're reading from   Windows APT Warfare Identify and prevent Windows APT attacks effectively

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Product type Paperback
Published in Mar 2023
Publisher Packt
ISBN-13 9781804618110
Length 258 pages
Edition 1st Edition
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Author (1):
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Sheng-Hao Ma Sheng-Hao Ma
Author Profile Icon Sheng-Hao Ma
Sheng-Hao Ma
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Toc

Table of Contents (17) Chapters Close

Preface 1. Part 1 – Modern Windows Compiler
2. Chapter 1: From Source to Binaries – The Journey of a C Program FREE CHAPTER 3. Chapter 2: Process Memory – File Mapping, PE Parser, tinyLinker, and Hollowing 4. Chapter 3: Dynamic API Calling – Thread, Process, and Environment Information 5. Part 2 – Windows Process Internals
6. Chapter 4: Shellcode Technique – Exported Function Parsing 7. Chapter 5: Application Loader Design 8. Chapter 6: PE Module Relocation 9. Part 3 – Abuse System Design and Red Team Tips
10. Chapter 7: PE to Shellcode – Transforming PE Files into Shellcode 11. Chapter 8: Software Packer Design 12. Chapter 9: Digital Signature – Authenticode Verification 13. Chapter 10: Reversing User Account Control and Bypassing Tricks 14. Index 15. Other Books You May Enjoy Appendix – NTFS, Paths, and Symbols

Examples of disguising and hiding loaded DLLs

The following example is the module_disguise.c code under the Chapter#3 folder of the GitHub project, which is publicly available in this book's repository. In order to save space, this book only extracts the highlighted code; please refer to the complete source code to see all the details of the project.

In the previous section, you have seen that we can crawl the PEB→LDR structure in dynamic memory to get the desired function module image base address. The next question is whether the information recorded in these dynamic modules can be forged for malicious use. The answer is yes. In this section, we design two functions: renameDynModule and HideModule. The former is used to disguise dynamic module information with confusing paths and names, while the latter is used to hide the specified dynamically loaded module from the record.

Figure 3.17 shows the renameDynModule function, which has only one input parameter for the...

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