I installed the LastPass Mac desktop application, and now every time I make a change (for example, delete an entry from the Vault), Avast posts two messages Infection Blocked! Infection: JS:ScriptSH-inf [Tri] and its a .xml file in a system folder
I'm running macOS 10.12.4 beta, Avast Mac Security 2016 (12.5), virus definitions 17022501
-- GaryG