Yeah I understand Prayos. It does seem that Kasperkey, Viper, Sophos all had a problem with update we got yesterday. If you disable to start the patch then re-enable it seems to work and you have a minimal exposure time.

Side note: As some one that gets to deal with the darker side of the internet daily, I would never recommend you put any executable file (exe, bat, com, etc) in an firewall exception/white list unless you were 100% sure.