Adobe Flash auto download

I have not been able to duplicate a problem that occurred and showed a virus/malware called "Suspicious.Cloud.7.EB" when Adobe Flash player tried to automatically download to my computer while I was on Facebook playing a game, Farmville. It was quarantined and required no further action. After Norton identified this, Malwarebytes also quarantined a PUP. I have one Pup isolated: PUP.Optional.MindSpark, but I'm not exactly sure that it wasn't a different pup that happened after Norton quarantined the malware. It possibly occurred after the first one and I don't have that file name. The download is still being attempted. I have run full scans and Norton does not find any suspicious activity, now. This download covers the tab for the game I play, so I have to quit the download and close the browser. I use Chrome, and the built in Flash Player does not require flash to be loaded on my computer. I have no idea where the automatic download is originating from. Norton Security Tech Support ran the Power Eraser and it found no threats.