alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Dotted Quad Host DOC Request"; flow:established,to_server; flowbits:isset,http.dottedquadhost; flowbits:set,http.dottedquadhost.doc; flowbits:unset,http.dottedquadhost; http.uri; content:".doc"; fast_pattern; endswith; nocase; classtype:bad-unknown; sid:2027251; rev:7; metadata:attack_target Client_Endpoint, created_at 2019_04_23, deployment Perimeter, performance_impact Significant, confidence High, signature_severity Informational, updated_at 2024_04_05;)