full-disclosure - Re: Evading Windows Secure Keys

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Message-ID: <20090712133302.2F27.0@paddy.troja.mff.cuni.cz>
Date: Sun, 12 Jul 2009 13:48:02 +0200 (CEST)
From: Pavel Kankovsky <peak@...o.troja.mff.cuni.cz>
To: John Moser <john.r.moser@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: Evading Windows Secure Keys

On Fri, 10 Jul 2009, John Moser wrote:

> I asked a friend today if he recalls how to up a key in VB.  He
> couldn't remember how, but does remember using that to up CTRL so when
> you push CTRL-ALT-DEL windows sends CTRL, ALT-DEL to the application
[...]
> I've been unable to verify that this works or find the correct API
> call to raise a key.  Anyone have any comments?

There are approximately three functions in Win32 making it possible
to interfere with keyboard input: keybd_event, SendInput, and
SetKeyboardState. I recall I was playing with them a very long time ago
and, indeed, I was able to do strange things with modifiers (Shift et al.)
but I do not recall whether it was possible to inhibit Ctrl+Alt+Del.

-- 
Pavel Kankovsky aka Peak                          / Jeremiah 9:21        \
"For death is come up into our MS Windows(tm)..." \ 21th century edition /

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