Constant [Infection blocked! URL:Mal] Popups

Hi guys,

I posted this in the Mac section, but I figured this might be a better place to get help. I’m running OSX 10.10.2

Very very new to these forums, but long time avast! user. Came through a problem earlier today which makes a URL:mal notification pop up on 75% of websites that I visit (including these forums, Time.com, etc.). Really not sure what could be the problem as I haven’t been downloading anything much less anything that I shouldn’t be downloading and have been regularly scanning/keeping avast! up to date.

Here is some more info if needed:

http://i.imgur.com/tMsLp5C.png

Infection: URL:Mal
URL: http://i.spigtrdpjs.info/spigtr/javascript.js?hid=69channel=GC
Process: /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

I’ve reinstalled avast! and Google Chrome already yet the problem is still occurring. Scanned this morning and came up with no issues, but 20 un-scannable files.

Any help would be greatly appreciated!

I posted this in the Mac section, but I figured this might be a better place to get help. I'm running OSX 10.10.2
if you dont recive any help in 48hours, try Geeks to Go http://www.geekstogo.com/forum/forum/41-operating-systems/