1. A computer system comprising: a computer network including at least one client computer, the at least one client computer operable to generate a request; and an anti-malware engine coupled to the computer system and operable to provide anti-malware protection for the computer network, wherein the anti-malware engine is operable to receive the request generated by the at least one client computer, and to determine if the request is classified as malware by determining whether the request includes one or more valid tags.