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Hook on windows 7 x64
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Hi, i'm trying to write a simple driver (on windows 7 x64) that hook general Protection Exception from idt, i would to know why when i add to my isr a call to an API (like KdPrint) the system hang, i saw that on windows xp must be corrected the value of segment registers, what i need to do on win7?
my goal is to add to my isr a dpc routine that does some functions, it is possible?
thank's for attention and sorry my bad English.
 
edit:
I think I found the problem, if I add the SWAPGS instruction at the beginning and at the end of my ISR the DPC routine runs fine but now I have the problem that once that the ISR was performed the CPU is in x86 mode
Posted 24 Jan '13 - 2:00
Member 8119034495
Edited 27 Jan '13 - 0:29
v3
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Comments
Sergey Alexandrovich Kryukov - 24 Jan '13 - 14:33
Just one note: even to me, a person who worked in kernel ring so long time ago that I wasn't familiar even with emerging Windows NT (and that's why I hardly can help you), your question looks quite clear. And doable. So, sorry for not helping you, but I voted 5 for this question, and the effort to write in English. Only please capitalize sentences and add blank spaces after ','. Cheers, —SA
OriginalGriff - 25 Jan '13 - 7:35
Don't bump your question - if you have information to add, then add it, but don't just make a trivial change to get it to teh top of the list. It's rude, and unnecessary. It does not help you get an answer, it just annoys those you might have helped you.
Member 8119034 - 25 Jan '13 - 10:47
I have add blank spaces after ',' as I had been asked
Michael Haephrati - 3 Mar '13 - 13:54
Could you elaborate more? Which type of driver are you trying to create? Is it a Kernel driver? Is there is chance you are blocked by Patch Guard?
Michael Haephrati - 7 Mar '13 - 16:10
You might find Easyhook will be very helpful for that matter. http://easyhook.codeplex.com/

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