Web Attack: Exploit Toolkit Website 8 (What do I do?)

For 3 days now I keep getting the "Web Attack: Exploit Toolkit Website 8 notifications, many times per day, at the very least 5 times per day, maybe more.

 

Norton blocks them everytime and says "no action required" but I keep feeling that this is not a good thing.  I've had Norton for almost 2 years and I've never gotten anything on my computer except tracking cookies.  And the attacker URL is always different, so is the attacking IP address. :smileyfrustrated:

 

I haven't gone to any different websites than I normally do.  I can't imagine what this is.  I've done some limited research on this but can't find any resolutions.

 

Yesterday I did install the latest version of Norton, usually I'd wait until renewal but I thought this might help this thing that's going on.

 

I don't mind the notifications, but I'm worried now that since I've started getting them relentlessly that something has "gotten through" to my system.

 

Can anyone help with this?  See Photo

 

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