alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET INFO Unconfigured nginx Access"; flow:from_server,established; http.stat_code; content:"200"; file.data; content:"|3C|title|3E|Welcome to nginx|213C2F|title|3E|"; classtype:bad-unknown; sid:2023668; rev:4; metadata:attack_target Client_Endpoint, created_at 2016_12_19, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2022_11_21;)