An addendum and something I hate to confess but will anyway. I used to run Super Antispyware like years ago and it was a good product. But then more recently, I read the poor reviews, esp. over at Wilders but didn't think much of it.
OK, so out of cuirosity, I d/l SAS--the Professional 14 day trial version. and then shut off Defender's real time protection because it will snag that Eicar test file pronto. So I installed this but didn't pay much attention as I thought it hadn't changed at all in five years. WRONG. Pay attention, plat!
This thing installed a PUP and I didn't catch it. What was it? Google Chrome. OK, so lesson learned. Here are results. Amid all that clutter (mucho cookies cuz I ran Firefox outside Sandboxie for this nonsense) is the one true finding of the Eicar file. Yay. Don't think I'll try this again anytime soon, though.