First of all, I have the latest version of AVAST installed, but prefer to update manually. I've also disabled streaming updates. In addition, I chose a custom installation and deliberately omitted to install any shields.
Now then, here's a screenshot of the warning my firewall generated a few mins ago while I was reading a Wikipedia travel article, part of which you can see in the background. As already mentioned, I prefer to update manually, so any form of automatic updating shouldn't suddenly manifest itself especially since AVAST wasn't running at the time even. Any comments would be most welcome.