alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Geo IP lookup service (api .ipgeolocation .io)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"|2f|ipgeo|3f|apiKey|3d|"; startswith; http.host; bsize:20; content:"api.ipgeolocation.io"; fast_pattern; classtype:misc-activity; sid:2051559; rev:2; metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_03_08, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_27;)