To see if your current pop up blocking solution will handle these intrusions, go to this test page and follow the instructions. Better Pop Up Blocker can of course allow pop ups from a "whitelist" you can customise.
I rarely bother with supplemental pop up blockers since Chrome itself does a good job of filtering out 95% of pop ups, but now that I have Better Pop Up Blocker installed I've noticed that a few pop ups that got through Chrome are being stopped by Better Pop Up Blocker. This extension looks like a keeper.
Better Pop Up Blocker is a free extension available in the Chrome Web Store.