This is very interesting, because in 2014 (using version 2014) I did some very specific testing myself and found that Xing out of the dialog had the same effect as pressing whatever button was the default. I forget exactly what button it was, but I do remember definitively finding that using the [X] was NOT a way to get Avast to bypass the detection (e.g., like an "Ignore, I know better" choice would be).
I wonder if something subtle may have changed, given David's results. Or maybe I just didn't test all the combinations of action choices.
Very interesting indeed.
-Noel
