The attack, using the Kotver malware, could have been used by the hackers to deliver more malicious ransomware or information gathering malware. The attack affected millions of people in the US, the UK, Canada and Australia and has been going on for over a year. A fake update screen, believed to be genuine by the user, is used to cause the infection. The campaign, which appeared on PornHub and used the Traffic Junkey advertising network, was brought to the notice of the site operator and ad network.”]
Source: https://hackercombat.com/pornhub-users-attacked-advertising-malware-year-long-attack/