On Tue, 02 Aug 2016 14:10:37 -0400, Nil wrote:

Apparently, this was a "silent" update through the Emergency Update.

You must be right

Can't find the announcement on the forum anymore , but I'm sure they
referred to the Emergency Updater.

- after learning I had installed the bad update and
learning it had been fixed, I went back to update Avast again and was
surprised to find it was already updated to the fixed version. They
must have pushed it without any action on my part. I'm glad it's fixed,
but that kind of silent manipulation of my computer is disconcerting.

You can always disable AvastEmUpdate.exe. ;-)

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s|b