This started happening a couple of days ago. It's a small and simple form of adware, but it's incredibly annoying. It linkjacks your results on google. For example, if I search for "jobs", the top result is Monster. But if I click it, I get sent to a random spammy site.
I have Microsoft Security Essentials' realtime protection on. I have run a full system scan with it, Avira, Malbytes, and Spybot. None of them pick up anything. There is nothing suspicious in my task list, and no unknown applications or services are starting up with my computer. I have no extensions for chrome running.
What can I do?