Hi,
I have been doing a fresh install of windows 8.1 and during the course of downloading and installing all of my applications I got a malware/adware virus called LocalTemperature. It was injecting popups and ads in chrome, mozilla and ie. I ran both norton 360 scans and microsoft malicious software removal tool and neither tool found it. I also ran the n360 scan that causes the computer to reboot and uninstalls anything suspicious (I forget what it is called).
I eventually found it, but it was much more difficult for me being a new windows 8 user and not knowing yet what belonged and what didn't.. I just wanted to share this and hope that you will be able to include this in your detection scheme.
Thanks,
Alex