This OOTB rule can be modified from "Ban (Report Only)" to "Ban" if desired.
Additional Notes
By default, event rules will change any pre-existing file state (IE if the file was approved, it will be changed to banned). If you would like to override this behavior you can add a filter so the rule only applies to unapproved files (File Properties filter > File State IS: Unapproved).
More information on event rules can be found in Chapter 19 "Event Rules" in the User Guide.