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WinLogon programming interface

Posted on 1998-02-05
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Last Modified: 2013-12-28
Environnement : WINDOWS NT4

I want substitute my authentification in order to use WinLogon authentification.

- Is it possible to interact with WinLogon to provide an specific authentification via an interface (Exit),

- Is it possible to write a new WinLogon process (using an source file example " WinLogon.c").
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Question by:pht
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by:jhance
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It might help if you described in more detail what you are trying to accomplish.  It is possible to replace the WinNT logon subsystem but it's a major undertaking.  There might be a better way of accomplishing your purpose than to replace the whole thing.  
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by:pht
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In fact I  want use my own authentification instead the WINDOWS authentification (User Windows, Pasword Windows).
My authentification is different, using Token,  Card or other mean.

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Bing CISM / CISSP earned 200 total points
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Sorry to tell you, no way. It is very important for NT security: to prevent another authentification other than the one of itself. Else, NT would lose its C2 level as M$ mentioned.

This feature assures NT's logon is security, no any guy can get client's username and password from this wall.

Please refer NT resource kit for more info.

Hope this helps,
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