How can I remove this warning saying that a file will damage my MacBook Pro?

Running Sonoma on M1. Trying to help a friend get rid of the following popup that appears on boot up. ..."DeployPlatformfld" will damage your computer.

It's clearly the remanent of malware that has since been removed. Clicking 'show in finder' reveals nothing.

I ran FAF (Find any File) and it couldn't find it, but searching for 'DeployPlatform' found the following:

These two are in private/var/db/// and I don't have permissions for the folder!

Document: deplyplatform.gqa.aot

Document: deplyplatform.gqa.aot

These are zero bytes and are in private/var/db/// I can delete them.

property list: deplyplatform.system.plist

property list: deplyplatform.service.plist

property list: deplyplatform.plist

Any idea's on how to resolve the pesky popup please?

[Re-titled by Moderator]