Hi DavidR,
Funny you say that because that crossed my mind as well - FP. Because why did not avast alarm when I downloaded it, but roars at me touching the bastard? Anyways cannot do any harm in the chest, and later I can do an online check on the files perimeters of the download.
I do not like it but occasionally when avast turns its head, I think "oh it is still doing its job"..
Ta,
polonus