alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET POLICY IP Lookup Geoip.co.uk"; flow:established,to_server; urilen:1; http.host; content:"www.geoip.co.uk"; startswith; reference:md5,fa05d4f1558a9581a14936c0ab3723f7; classtype:external-ip-check; sid:2022123; rev:3; metadata:created_at 2015_11_20, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_04;)