Antivirus-stability.com is a rogue website that tries to manipulate its visitors by showing various, fake security alerts and warnings. When examined by infosec researchers, the site was observed running a version of the 'You’ve visited illegal infected website' scam. Users are led to believe that the misleading website - Antivirus-stability.com, in this case, has managed to detect numerous malware threats on their devices/computers. To make the fabricated claims appear legitimate, the site claims that they are sent by the legitimate McAfee company.
Of course, neither McAfee nor any other reputable software vendor will have no connection to such schemes. Furthermore, users should keep in mind that it is impossible for any website to detect threats or identify issues on its own. As such, all of the displayed pop-ups and security warnings should be disregarded as completely fake.
The likely goal of the fraudsters is to lure users into pressing the provided button and being taken to a promoted software product. Commonly these people will receive fraudulent commission fees for any transactions completed this way. However, the behavior of the tactic could easily be modified in the future or changed, based on specific factors such as the incoming IP address/geolocation of visitors.