User blog comment:BlazikenGod/is anyone else having this issue?/@comment-16813132-20131206152823/@comment-6134941-20131206154238

I don't think that it a virus, it seems more like those unwanted browser extensions. I got Yootoo layers installed before and "ads not by this site" was one of the problems.

Just go to programs and features and uninstall all those unwanted extensions, and use chrome://extensions to remove them.

I do recommened Malware-bytes anti-malware to scan for these types of potentially unwanted programs, it aids in the removal also.