Unwanted tech support

We’ve all found ourselves in a situation when we required some form of tech support. Whether it was a device that had malfunctioned or a program that was not working properly, help was just a phone call or software download away.
 
Or so it may seem. Recently, several downloadable programs purporting to clean computers or provide tech support turned out to be complex scams. They would use a highly aggressive approach to lure users to contact them, and that’s when the real shenanigans would begin

Read more here:
https://blog.malwarebytes.org/cybercrime/2016/04/dodge-four-tries-to-escape-from-being-scammed/