Hi! This is just my opinion, and I'm not a trained malware fighter. I believe that the fake adobe flash player updates are coming in through Google Chrome browser. I have had two seniors using Chrome tell me They had a pop up adobe up date and that's when they started having malware problems after ;clicking on the fake Adobe up date. This is just MHO
After cleaning up their PC's and uninstalling Chrome,they have not reported any more issues.