alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET POLICY IP Check Domain (cmyip.com in HTTP Host)"; flow:established,to_server; http.method; content:"GET"; http.host; content:"cmyip.com"; fast_pattern; endswith; classtype:attempted-recon; sid:2008988; rev:9; metadata:created_at 2010_07_30, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_17;)