I use Kaspersky Total Security.
Today a first happened - I was checking my email at https://connect.xfinity.com/appsuite/api/mail?.....etc... and got several warnings about HEUR:Trojan.Win32.Fallchill.gen. It could have been inside an unopened email, but I really don't know.
The program could not quarantine or disinfect it, so the object file was deleted.
Is anyone else experiencing this?