Another one of the recent fake virus scams to get you signed up with all of these antivirus companies that are going out of business now that Windows has proper protection built in by default.
The buy it now link takes you through to: https://r-trk.track-order10.top/ga/click/2-65494250-5598-78283-154489-119705-3b8dc7f799-857a6b0a07 which is a website feigning virus infection:
Obviously this is a company being paid by Avira in order to boost capital through fraud. Fraud being a way of deceiving people out of their money, and so this definitely fits the crime. These corporations are truly out of control and our advice is to buy everything you can from your own community to stop these internet loonies flourishing as they appear to be doing at the moment.
The unsubscribe link, which presumably allows them to build their spammer lists to sell to SEO morons, takes you through to this site: https://r-trk.track-order10.top/ga/unsubscribe/[string]
Report the originating address and website as spam when you can to stop the proliferation of this type of scam.