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Old 10-11-2007, 07:47 AM
indianaV8 indianaV8 is offline
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Join Date: Dec 2006
Location: Stuttgart
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Default Re: Can You Write a Sure-fire Algorithm to Stop Bots?

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A captcha like phrase was developed for online forms etc and could be implemented in a software for a site, but it might get annoying. I saw a captcha on a site last night that if I were color blind, would have been impossible to determine.

Only way I can think of that might be pretty close to untouchable would be to somehow determine if a keypress or mouse click came from a software interrupt or a hardware interrupt. If it was software it would simply be discarded. Without being a deep layer Windows API guru I can't tell you if it would be possible or not but if it were, that would solve it immediatley I would think. Don't believe you can fake a hardware interrupt from software without causing the kernel to go wacky.

I could be wrong.

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You can't do that. If the bots are run in VMWare, and the click is from the host PC you get 1:1 a user behaviour.
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