alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE CyberGate RAT Checkin"; flow:established,to_server; http.uri; content:".php?"; content:"email="; content:"&serverid="; content:"User|3a|"; content:"PC|3a|"; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; reference:md5,24d9f082b849b4c698e6b012500d441a; classtype:command-and-control; sid:2018659; rev:5; metadata:created_at 2014_07_10, signature_severity Major, updated_at 2024_04_28;)