The program is called "system tool". Everyone in my family, except me, has gotten it though it's been a long time since I last had this happen so I've forgotten the details on removal. If I remember, though it only works if you actually have "system tool", there's a program you can download that will remove it, though there is also a manual removal approach. Search Google for this. Whatever you do, do not buy that fake antivirus program! You'll just be throwing money away, giving it to thieves.
The "root" thing you're thinking of is "root kit", of which is another form of malware.