Hooray! The Network Shield blocked a link to a malicious site in a hidden iframe. My first true positive since I first installed Avast. (Has it really been only 18 months since I switched from AVG?) The Wordpress blog at hxxp://ilias.ca/blog has been hacked with a hidden iframe containing a link to a malicious site. I've broken the link since you shouldn't follow it. I've left warnings in the comments on a couple of the blog entries and emailed the owner, Chris Ilias.