How to get rid of americascardroom.eu?

Question

Malware

How to get rid of americascardroom.eu? On one computer constantly there are offers to pass to this site. It seems to be push notifications windows. Kaspersky is silent. On another computer, a window with the certificate "americascardroom.eu" constantly appears.
If only it happened once or twice... but it's constant. Interferes with work.
But worst of all, it is not clear who opens the window with the certificate and who generates the window with the offer to go to the site. And this is when Kaspersky is alive)))
Answers to questions: Push notifications come from Windows (and it is not clear who the sender is), as well as from Kaspersky (also push). The certificate window is standard - which usually appears if you double-click on the *.ser certificate file.

Now on both computers this parsley. Plus added z.cdn.braun634.com. I come to the office and the whole monitor is plastered with them. Who generates this???