October 2018
Beginner to intermediate
436 pages
9h 36m
English
Content preview from Mastering Reverse Engineering
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Decrypting with x86dbg
The preceding code snippet came from the HeapDemo.exe file. You can download this file from https://github.com/PacktPublishing/Mastering-Reverse-Engineering/tree/master/ch9. Go ahead and start debugging the file using x86dbg. This screenshot shows the disassembly code at the WinMain function right after loading the file in x86dbg:
From the executable's code entry point, we encounter heap allocation with the GetProcessHeap and RtlAllocateHeap APIs. This is followed by using a _memcpy function, which copies 0x1BE bytes of data from the address denoted by heapdemo.enc. Let's take a look at the memory dump from heapdemo.enc ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.