[Bro] Any thoughts on "Microsoft-CryptoAPI/10.0" user-agent?

Keith Lehigh klehigh at iu.edu
Tue Feb 21 06:40:40 PST 2017


Confirmed with a virtual machine I have running Windows 10.

- Keith

> On Feb 21, 2017, at 09:26, Seth Hall <seth at icir.org> wrote:
> 
> 
>> On Feb 21, 2017, at 8:40 AM, fatema bannatwala <fatema.bannatwala at gmail.com> wrote:
>> 
>> I am trying to figure out what Windows operating system version have
>> the user agent "Microsoft-CryptoAPI/10.0" when it accesses Microsoft Certificate Revocation List (CRL).
>> 
>> I am seeing good amount of these in software.log, where it ends up being "Unknown CryptoAPI Version" as the windows-version-detection.bro script doesn't have a mapping for that CryptoAPI.
> 
> I suspect this is Windows 10.  Can someone out there validate that suspicion so we can add that to the windows version detection script?
> 
>  .Set
> 
> --
> Seth Hall
> International Computer Science Institute
> (Bro) because everyone has a network
> http://www.bro.org/
> 
> 
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