April 2023
Intermediate to advanced
480 pages
12h 14m
English
Content preview from Blue Fox
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CHAPTER 11Dynamic Analysis
In the previous chapters you learned the fundamentals of Arm assembly and static analysis of disassembled code. This knowledge helps you identify control flow patterns, trace user‐controlled input, and analyze functions with a specific goal in mind. Now it's time to take it a step further and analyze a program in its dynamic, actively running state.
Debuggers are mainly used for one of two main purposes: to examine memory images (aka core dumps) associated with a crashed program or process or to examine the execution of a program or process in a controlled manner.
Debugging is especially useful for beginners who want to learn an assembly language. Learning assembly can get tedious and overwhelming, especially when presented with a 6,000‐page reference manual. The best way to learn assembly, in my experience, is to understand the most common instructions and learn the more exotic instructions as you run into them. When you open a binary in a disassembler, you will likely encounter instructions you have never seen before. Looking them up in the Arm reference manual is a good start, but seeing them in action and observing their behavior will solidify this knowledge.
Static and dynamic analysis come hand in hand. If you just run a program in a debugger, it will simply run and finish, or crash if triggered. The prerequisite for debugging is at least a minimum understanding of the binary you want to debug. Therefore, the first step is always static analysis. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.