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Binary Analysis Cookbook

You're reading from   Binary Analysis Cookbook Actionable recipes for disassembling and analyzing binaries for security risks

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Product type Paperback
Published in Sep 2019
Publisher Packt
ISBN-13 9781789807608
Length 396 pages
Edition 1st Edition
Tools
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Author (1):
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Michael Born Michael Born
Author Profile Icon Michael Born
Michael Born
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Toc

Table of Contents (12) Chapters Close

Preface 1. Setting Up the Lab FREE CHAPTER 2. 32-bit Assembly on Linux and the ELF Specification 3. 64-bit Assembly on Linux and the ELF Specification 4. Creating a Binary Analysis Methodology 5. Linux Tools for Binary Analysis 6. Analyzing a Simple Bind Shell 7. Analyzing a Simple Reverse Shell 8. Identifying Vulnerabilities 9. Understanding Anti-Analysis Techniques 10. A Simple Reverse Shell With Polymorphism 11. Another Book You May Enjoy

Changing a binary's signature

It may come as no surprise that there are options for changing a binary's signature, and we should recognize when some of those options are employed in binaries we're analyzing manually. We will focus on the analysis of one technique in more depth in the next chapter, but, for now, let's learn a few ways to change a binary's signature. We'll actually employ a technique we learned about in an Chapter 5, Linux Tools for Binary Analysis, to accomplish our goal.

For this recipe, we'll try to change the binary's signature so that the signature detection Python script doesn't detect the signatures in the altered binary. We can use the output from the previous recipe to understand the signatures that the script is looking for. Specifically, we'll want to tackle the bytes 48 83 C0 3B and see if we can come...

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