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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

Editing the binary

In the previous recipe, we discovered this program acts very much like a reverse shell. We also discovered an IP address within this program that may or may not belong to our organization. Because dynamic analysis may provide us with additional information, and because this binary connects to someone else's host, we'll need to edit some of the bytes in the binary so that it connects to a host we own only. This is actually a lot easier than you may realize and we've already touched on one of the tools that can help us to accomplish this rather easily.

In this recipe, we'll use the hex editor tool to help us to accomplish our mission. We've already installed this tool in previous chapters and actually, we've also seen its output—when we examined a CTF style of binary challenge. This tool is rather simple to use but can be destructive...

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