I pay 14.99$/year for Bitdefender mobile. It's an antivirus for your devices and you can add multiples devices on the same plan. It scans everything in your device, scans web pages you visit and links you receive and also has app lock, VPN and anti-theft.
If you really think you have a malware, consider trying an anti-virus app. You could probably get a trial on one of them
I've never, ever used any "antivirus" apps, & I've been testing Custom Roms (firmware) for years, which theoretically, is the most exposure you can get with Android.
Android almost never actually gets a "virus", but the people who make "antivirus" apps, would have you believe that Android is extremely vulnerable to viruses.. it's simply not true, but they are trying to sell a product to what's been a rapidly growing market.
