Ads from Meteoroids indicate that your web browser is infected with adware. Meteoroids and other adware are developed in order to display ads. Although these programs are not dangerous enough to be called a virus, they still possess plenty features, which might cause trouble. The worst part about adware infection is that it is extremely annoying. Users are constantly presented with various pop-ups, banners which promote useless products and services. What is more, adware has some similarities with dangerous malware called rootkits. As a consequence, the adware is capable of infiltrating deeply into the system thus it is very hard to remove it.
IT experts categorize adware as a PUP. PUPs are unwanted programs, which are not powerful enough to be classified as viruses, but can still make a lot of trouble. That is why users should get rid of Meteoroids and other similar programs right away.