Need Help to Remove 844-556-7757 Tech Support Scam Pop-ups?

Last night I received a warning that a worm was infecting my computer - RDN YahLover.worm! and that I should call tech support at 844-556-7757 .  Is this a scam or should I be worried?  

Dear friend, what is your reaction to pop-up with toll-free hotline 844-556-7757? Define it as a tricky page and overlook it? Worry about system performance and data protection so much that you hurry up to call 844-556-7757? 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.