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Bypassed Macro APIs
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colo
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PostPosted: Wed Aug 15, 2007 7:14 am    Post subject: Reply with quote




if apis hook in mode driver how dog bypassed??? in mode driver?

NtGdiLineTo, NtUserSendInput, NTUserGetDC???? how can me make bypass in me source code trainer???
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UnLmtD
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PostPosted: Wed Aug 15, 2007 10:06 am    Post subject: Reply with quote

colo wrote:



if apis hook in mode driver how dog bypassed??? in mode driver?

NtGdiLineTo, NtUserSendInput, NTUserGetDC???? how can me make bypass in me source code trainer???


You could relocate the ServiceTable of KeSerivceDescriptorTableShadow, let gameguard to their hooks, and then restore the original address. This method works with KeSerivceDescriptorTable.

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colo
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PostPosted: Wed Aug 15, 2007 11:15 am    Post subject: Reply with quote

sry but one example? I am not a good programmer but I understand
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tahoma
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PostPosted: Wed Aug 15, 2007 5:15 pm    Post subject: There is no simple way. Reply with quote

colo wrote:
sry but one example? I am not a good programmer but I understand


You must write kernel mode driver against GG.

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kittonkicker
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PostPosted: Thu Aug 16, 2007 5:54 am    Post subject: Re: There is no simple way. Reply with quote

tahoma wrote:
colo wrote:
sry but one example? I am not a good programmer but I understand


You must write kernel mode driver against GG.


There's a few usermode tricks which can achieive a similar effect...
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linden
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PostPosted: Thu Aug 16, 2007 8:06 am    Post subject: Re: There is no simple way. Reply with quote

kittonkicker wrote:

There's a few usermode tricks which can achieive a similar effect...


But kernel driver is much more powerful. So I prefer/suggest writing a kernel mode driver Smile
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kittonkicker
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PostPosted: Thu Aug 16, 2007 11:34 am    Post subject: Re: There is no simple way. Reply with quote

linden wrote:
But kernel driver is much more powerful. So I prefer/suggest writing a kernel mode driver Smile


To be perfectly honest, I don't know the first thing about writing kernelmode drivers.

I could probably code one with a bit of help though...

The last time I tried to mess about with a kernelmode driver, I was trying to hook ZwCreateFile...I managed to BSOD myself about 100 times before I decided it wasn't worth it!
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nog_lorp
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PostPosted: Thu Aug 16, 2007 2:15 pm    Post subject: Reply with quote

Kiki, use code from rootkit.com as a template, and go from there.
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UnLmtD
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PostPosted: Thu Aug 16, 2007 2:30 pm    Post subject: Reply with quote

r0 is way more fun then r3 Smile
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kittonkicker
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PostPosted: Thu Aug 16, 2007 2:31 pm    Post subject: Reply with quote

UnLmtD wrote:
r0 is way more fun then r3 Smile


So says "Mr BSOD" xD.

I remember you saying on IRC "I'm probably about to BSOD"!! I rofl'd.
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UnLmtD
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PostPosted: Thu Aug 16, 2007 2:33 pm    Post subject: Reply with quote

Razz But when it finally works, it's worth it.
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nog_lorp
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PostPosted: Thu Aug 16, 2007 8:50 pm    Post subject: Reply with quote

"Bypassed"... awfully specific. Bypassing what exactly? Userland hooks? Kernel hooks?

~nog_lorp

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linden
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PostPosted: Thu Aug 16, 2007 10:50 pm    Post subject: Reply with quote

Well, I had lots of BSOD too. And you can't avoid BSOD if you're writing kernel codes. Rather than testing your driver by trial and error, learn how to debug with WinDbg so you know what's causing the BSOD.
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--Pillboi--
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PostPosted: Fri Aug 17, 2007 4:04 am    Post subject: Reply with quote

Or trial it in VMWare... xD
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assaf84
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PostPosted: Sun Aug 19, 2007 1:11 pm    Post subject: Reply with quote

um...
where is the DLL? Shocked
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