alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO GET Request Exfiltrating Username and Hostname"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/index.php?name="; fast_pattern; startswith; content:"&host="; distance:0; reference:md5,76ee96d37d492dddcd8b62a2a0c1e426; classtype:misc-activity; sid:2039605; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_10_31, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_10_31;)