Infected With Call 0-800-069-8527 Pop-up Scam? How to Remove ?

Last night I received a warning that a worm was infecting my computer - RDN YahLover.worm! and that I should call tech support at 0-800-069-8527 .  Is this a scam or should I be worried?  

Dear friend, what is your reaction to pop-up with toll-free hotline 0-800-069-8527? Define it as a tricky page and overlook it? Worry about system performance and data protection so much that you hurry up to call 0-800-069-8527? Attention! Both are wrong way to handle such a fake alert. Based on latest review about it, we here draw up three plans for you, and attach successive consequences respectively.