Hooked up new printer -- viruses on my iMac?
I recently bought a Workforce WF-2860 Epson printer and hooked it up to my 2017 21.5" iMac. I used an USB cable to connect the printer to the iMac and used Wi-Fi to connect my iPad to the printer. Both worked, but after using it occasionally for a few days, the printer screen had a prompt to go to the Epson web site to update drivers. A long story short: I could not get the new drivers installed so Epson had a technician call me. After working on my computer for awhile, he told me that I had a virus or virus on my computer that was replicating. Anyway, I didn't follow through with his having me hooked-up to an Antivirus company. Every thing seemed legitimate since I followed the instructions and web page as listed on my printer screen.
I have no additional virus protection other than what came with my iMac. I am wondering if downloading the "free" app Trend Micro Antivirus One for Mac would be a wise decision? I do not mind paying for good virus protection, but I would greatly appreciate ideas on what would be my best course of action and what virus protection with virus scanner would work best. Is there a legitimate site where one can run a one time virus scan of an iMac? Thanks in advance if anyone can help me.
iMac 21.5″ 4K, macOS 10.15