User Activity Reports showing malware category for a Microsoft website?

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L0 Member

User Activity Reports showing malware category for a Microsoft website?

On our User Activity Reports, I'm seeing windowsupdate.com with a block-url action and malware category classification.  The URL appears to be valid.  Does anyone have an idea why this would be happening?

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L7 Applicator

Re: User Activity Reports showing malware category for a Microsoft website?

My guess would be that the following signature update for C2 signatures:

generic:007896376966807894.windows-updates-service.com

That was deployed in 3311 and subsequently removed in 3312 is a little bit too off and caught more traffic than intended. If you haven't already, update to 3312 and the issue should go away. 

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