IDE 1.8.2 with Trojan included?

Does someone know why my antivirus claims that IDE files "arduino-builder.exe" and "arduinoOTA.exe" are Trojan.Crypt.Heur.gen?? If I remove the files the IDE becomes unusable. And I've re-downloaded (from this website) and reinstalled the IDE and the same thing happened.

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OK, thanks.