search for malware on imac High Sierra
I clicked on a link in an email to reset a Direct Debit for my TV licence as the latest payment had not been accepted, and it wasn't until I had filled in my personal details and gone to the bank details page that I realised this must be a scam email.
Fortunately, I hadn't entered any bank details, and hadn't clicked on 'submit', or the equivalent. Reading online comments there are references to not click on any links, as it can download malware.
Contacting Action Fraud Helpline they suggested I take my iMac to a computer repair shop, but I would prefer to follow an alternative route, if possible :
What signs should I look for in the way my iMac performs that indicates malware. Also, I see there are free Mac antivirus available, such as Antivirus One and Total AV.
Any advice on malware signs or antivirus recommendations gratefully received.
Thanks.
iMac 21.5″, macOS 10.13