0 Replies - 11539 Views - Last Post: 04 January 2013 - 08:04 AM

#1 Yeti  Icon User is offline

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Detecting breakpoints

Posted 04 January 2013 - 08:04 AM

Goodevening, let me introduce myself in short.
Im a student and in free time im a software developer. Since im just a student i do not have the money to buy a commercial protector, so that is the reason im here. i want to develop a own private pe protector to protect my own software.
I hope you can help me a little with this.

The first feature of my protector should be able to detect hardeware & software breakpoints.
I want that this breakpoint checking is always executed while running the software.
I suppose i have to use CreateThread to check for bp's during running?

Also, i took a look at older asm opensource protectors and all of them using CreateProcess to open a selected file.
Then it checks if it is a valid pe. So far i understand. But then i have to add my "breakpoint check" to the openend file and i don't know how to do this.
So maybe you can point me a little in the right direction?

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