What’s A Pup And What’s A Wrapper ?
A PUP is a potentially unwanted program and a wrapper is a program that you download that comes with multiple unwanted programs and add ons.
These are extremely prolific now with users going to a site , say download.com , and attempting to download say a video editing program , then having to agree to a proliferation of other programs , browser add ons.
A bit of research and not agreeing to all things that are presented to you on your computer screen will go a long way to keeping your computer free from such infections.
Checkout this article : Yes, Every Freeware Download Site is Serving Crapware (Here’s the Proof)