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Windows 7: How to close port 135


07 Apr 2012   #1

Windows 7 Home Premium, 64 bit, SP1
 
 
How to close port 135

I just went to GRC and found that port 135 was open. I have Norton 360 for almost a year and this is the first time I've seen an open port. Any help is appreciated!

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07 Apr 2012   #2

Windows 7 Ultimate x64 SP1
 
 

Why are you worried about port 135? It's used by the RPC Endpoint Mapper. Here's a list of things that need RPC running correctly in order to function:

RPC Endpoint Mapper | Black Viper | www.blackviper.com
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07 Apr 2012   #3

Windows 7 Home Premium, 64 bit, SP1
 
 

Here's what GRC says about port 135:

(Remote Procedure Call) This impossible-to-close port appears in most Windows systems. Since many insecure Microsoft services use this port, it should never be left "open" to the outside world. This port has been exploited to send "Messenger Spam" pop-ups to Microsoft windows users. Since it is impossible to close, you will need a personal firewall or NAT router to block it from external access. Do it soon!
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07 Apr 2012   #4

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

Even if I only had one computer I would still recommend using a good router. My ShieldsUP! report shows full stealth, without any special tweaking on my part.
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07 Apr 2012   #5

Windows 7 Home Premium, 64 bit, SP1
 
 

I clicked on the "Get Support" tab and was re-directed to an upgrade. (I didn't think I had to do that manually, shouldn't that be automatic?) After the upgrade finished I went back to GRC and VIOLA! the port is closed.

Everything is good again, no thanks to me!
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07 Apr 2012   #6

Windows 7 Ultimate x64 SP1
 
 

Quote   Quote: Originally Posted by profdlp View Post
Even if I only had one computer I would still recommend using a good router. My ShieldsUP! report shows full stealth, without any special tweaking on my part.
That's why I don't worry about ports on my computer, because my router takes care of that.
My System SpecsSystem Spec
07 Apr 2012   #7

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium x64 SP1
 
 

I had to manually configure my (albeit older) Linksys router to close port 135. A Guy
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 How to close port 135




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