alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Rodecap CnC Checkin"; flow:established,to_server; http.uri; content:".cgi?s"; content:"&r="; pcre:"/\.cgi\?s(?:id)?=\d{1,12}&r=/"; http.header; content:"Cache-Control|3a 20|no-cache|0d 0a|"; content:"User-Agent|3a 20 2d 0d 0a|"; fast_pattern; http.header_names; content:!"|0d 0a|Referer|0d 0a|"; content:!"|0d 0a|Accept|0d 0a|"; classtype:command-and-control; sid:2013201; rev:9; metadata:created_at 2011_07_05, malware_family Win32_Rodecap, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_10;)