Author
Message
GegaBit
Posts:3311
Senior member
Member since: 2006-11-30
:: Quote ::
Subject: Microsoft Search Filter Host
A Microsoft Search Filter Host came with a Vista update, tired to call home, but there is no MS documentation for what it does or what it is.

Anyone has any idea what "Microsoft Search Filter Host" does?
August 13, 2008 05:33PM
DamonHD
Posts:6158
Moderator
Member since: 2006-11-30
:: Quote ::
Subject: Re: Microsoft Search Filter Host
Can we assume that it's an evil plot to:

* Steal all your personal data.
* Remotely disable your machine.
* Force you to buy more licences.
* Listen in on your secret conversations and pass them on to the NSA and the FBI.
* Etc?

B^>

Is it in any way related to automatically blocking 'dangerous'/compromised sites like (eg) FireFox does?

Rgds

Damon
August 13, 2008 06:58PM
GegaBit
Posts:3311
Senior member
Member since: 2006-11-30
:: Quote ::
Subject: Re: Microsoft Search Filter Host
I choose stealing data till proven otherwise.

Amazing the hundreds of megs of security updates that the vista keeps downloading, how do they find the time to write all this, and why the HELL do we need so many updates!

Grrrr
August 13, 2008 07:12PM
Harold
Posts:2494
Senior member
Member since: 2006-11-30
:: Quote ::
Subject: Re: Microsoft Search Filter Host
"and why the HELL do we need so many updates! "

Because they didn't get it right the first time, and then the fix wasn't right, so there's a fix for a fix, and so on.
August 13, 2008 07:49PM
Pengi
Posts:3345
Senior member
Member since: 2006-12-17
:: Quote ::
Subject: Re: Microsoft Search Filter Host
Have you tried a Search ....
.... or does it get filtered?
August 13, 2008 08:12PM
GegaBit
Posts:3311
Senior member
Member since: 2006-11-30
:: Quote ::
Subject: Re: Microsoft Search Filter Host
If by "search" you mean Google, yes I have and it still works winking smiley
August 13, 2008 08:31PM
DamonHD
Posts:6158
Moderator
Member since: 2006-11-30
:: Quote ::
Subject: Re: Microsoft Search Filter Host
But did you search for:

"Microsoft Search Filter Host"

since it turns up all sorts of interesting stuff at first glance?

Rgds

Damon
August 13, 2008 09:03PM
GegaBit
Posts:3311
Senior member
Member since: 2006-11-30
:: Quote ::
Subject: Re: Microsoft Search Filter Host
If you mean a Google search for Microsoft Search Filter Host
Then you too have seen the only 6 results there with people wondering what it is and no answers, also you just fogured out why I started this thread in the public "How to" section vs. the Lounge as I think there will be a lot of people searching for information about Microsoft Search Filter Host smiling smiley
August 13, 2008 09:35PM
DamonHD
Posts:6158
Moderator
Member since: 2006-11-30
:: Quote ::
Subject: Re: Microsoft Search Filter Host
I did say "at first glance" your honour! %->

Rgds

Damon
August 13, 2008 09:48PM
Harold
Posts:2494
Senior member
Member since: 2006-11-30
:: Quote ::
Subject: Re: Microsoft Search Filter Host
The question also seems to be "why is it eating my CPU?"--is that your experience too, GB?

Could it be a filter like you can switch on on Google to make the results child-safe, but based on your computer, filtering search results? That would be CPU-intensive....
August 13, 2008 10:44PM
GegaBit
Posts:3311
Senior member
Member since: 2006-11-30
:: Quote ::
Subject: Re: Microsoft Search Filter Host
No cpu resources problem, that was my first thought too, till it tried to access the internet on its own (call home), also the name "host" means it's pc related, well, if they can't write good code they might as well screw up the naming of the update as well, it could be anything I guess.

Google Canada seems to have a VERY interesting page that can only be found via live.com smiling smiley
[www.google.ca]
wow
August 13, 2008 11:09PM
Harold
Posts:2494
Senior member
Member since: 2006-11-30
:: Quote ::
Subject: Re: Microsoft Search Filter Host
Well, let's see, if it calls home, it's doing that to check on the latest filters to make sure it has all the info. it needs? Weird. Microsoft has nothing official on it at all?

Maybe it's something like that kill switch in the new iPhone.

And as for that link, wow indeed--according to that, my Mac computer is loaded with PC viruses. So how did someone get that stuff up there?
August 14, 2008 03:52AM
GegaBit
Posts:3311
Senior member
Member since: 2006-11-30
:: Quote ::
Subject: Re: Microsoft Search Filter Host
Perhaps we need someone from Canada to answer that one, have you moved back yet Harold?
August 14, 2008 08:21AM
DamonHD
Posts:6158
Moderator
Member since: 2006-11-30
:: Quote ::
Subject: Re: Microsoft Search Filter Host
Leave him alone, he's coming to Slough!
August 14, 2008 09:15AM
Harold
Posts:2494
Senior member
Member since: 2006-11-30
:: Quote ::
Subject: Re: Microsoft Search Filter Host
Still in Canada, but hope to be back in the US next week....
August 14, 2008 02:26PM
GegaBit
Posts:3311
Senior member
Member since: 2006-11-30
:: Quote ::
Subject: Re: Microsoft Search Filter Host
Quote:
searchfilterhost.exe is a process associated with Microsoft® Windows® Operating System from Microsoft Corporation
[www.processlibrary.com]

processlibrary has been a reliable source of info on who does what in your winwows(tm), interesting they have nothing on searchfilterhost.
August 16, 2008 08:53AM
DamonHD
Posts:6158
Moderator
Member since: 2006-11-30
:: Quote ::
Subject: Re: Microsoft Search Filter Host
Well, rename it or move it and see what breaks.

Rgds

Damon
August 16, 2008 09:21AM
Joshua
Posts:2831
Administrator
Member since: 2007-03-16
:: Quote ::
Subject: Re: Microsoft Search Filter Host
Maybe this helps a bit:
[forums.microsoft.com]
Quote:
My co-worker Josh did some investigations on this {see thread here: [forums.microsoft.com] }


Our conclusions were:

- SearchFilterHost.exe isn't actually accessing the network because it runs in a sandbox and it doesn't have permissions to do so. The firewall is probably triggering on an attempt to make a connection rather than an actual connection being made. Internally we tried this out with a network monitor and verified this.

- In the case Josh looked at, the attempt to access the network was made as part of indexing jpeg files. The jpeg rendering code was attempting to check for an updated codec or something similar.



Generally there's no code directly in SearchFilterHost.exe that accesses the network. But SearchFilterHost.exe is designed to load IFilters for different file types to do indexing, and these IFilters can be installed with other Microsoft or 3rd party products so it's hard for us to state exactly what is happening in any running instance of SearchFilterHost.exe. In fact that's why we run the IFilters in a separate process with low-rights.



Dave Wood
August 16, 2008 11:29AM

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