Malware check

Malware is rare for iPhone, and “any malware” is rather wide open.

There are a few tools to check for spyware and malware such as MVT, though those tools are not designed nor intended for inexperienced users.

AFAIK, Apple doesn’t usually offer that service. Though you’ll want to confirm that with Apple. I’d expect to receive suggestions around security, and a suggestion to re-install.

Breaches of passwords are rather more common.

Welcome to the Apple Support Communities.

iPhone cannot be compromised or get malware, and therefore cannot be scanned. However, if you are concerned about security, see: Apple Platform Security - Apple Support and Personal Safety User Guide - Apple Support.

Jack

No.