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HellBound Hackers | HellBound Hackers | Questions

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Ollydbg question


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Posted on 22-06-11 05:30
Hello everyone.

I just finished the App Cracking Challenge #5 using Ollydbg and was wondering some things. Could you enlighten me, if possible? =)

Is there any special techniques to get to callback functions? I mean, break when a button is pressed or something like that.

To do this I set up a memory breakpoint in my application's module after it had started and VB Runtime was waiting for events. So, when I clicked on the button I could break and bypass the functions that were haunting me.

Is this the best way to do it? Aren't there any ways to get the events directly at MSVBVM or USER32?

Also, how can you know the exact functions that are called when a string is read from a text field? I know GetItemDlg is used, but what to do when you have several fields?

Hope my questions aren't too specific, but maybe that's why Mr. Google couldn't answer me.

Thanks in advance.

Regards,

Flace