This is a very neat policy for sure!!

On Mon, Nov 03, 2014 at 12:56:07PM -0600, grigorescu (JIRA) wrote:
> 
>     [ 
> https://bro-tracker.atlassian.net/browse/BIT-1286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18702#comment-18702
>  ] 
> 
> grigorescu commented on BIT-1286:
> ---------------------------------
> 
> Forgot to mention the branch :-). It's in topic/vladg/cryptoapi
> 
> > Add policy script for Windows version detection via CryptoAPI HTTP Traffic
> > --------------------------------------------------------------------------
> >
> >                 Key: BIT-1286
> >                 URL: https://bro-tracker.atlassian.net/browse/BIT-1286
> >             Project: Bro Issue Tracker
> >          Issue Type: New Feature
> >          Components: Bro
> >    Affects Versions: git/master
> >            Reporter: grigorescu
> >
> > Windows systems access a Microsoft Certificate Revocation List (CRL) 
> > periodically. The user agent for these requests reveals which version of 
> > Crypt32.dll installed on the system, which can uniquely identify the 
> > version of Windows that's running.
> > This branch adds a Software framework policy script will log the version of 
> > Windows that was identified.
> 
> 
> 
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-- 
Aashish Sharma  (asha...@lbl.gov)                                
Cyber Security, 
Lawrence Berkeley National Laboratory  
http://go.lbl.gov/pgp-aashish 
Office: (510)-495-2680  Cell: (510)-612-7971

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