alert http $EXTERNAL_NET any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET POLICY F5 BIG-IP Exposed REST API GET (flowbit set)"; flow:to_server,established; http.method; content:"GET"; http.uri; content:"/mgmt/shared/authn/login"; fast_pattern; flowbits:set,ET.F5.exposed.api; flowbits:noalert; classtype:policy-violation; sid:2036504; rev:1; metadata:created_at 2022_05_06, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_05_06;)