I don't have a Mac to compare but are you sure that's McAfee-generated?
Sounds more like one of those rubbishy spring-cleaning things that downloads with the likes of FileZilla and ilk if you don't keep an eye on the installer.
Please check if "Spring Cleaning" is listed in the Applications. If present drag it to trash can for removal of "Spring Cleaning" software. If you couldn't locate this application anywhere in your MAC its best to contact Technical Support from link posted by Peter.