alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Kaicone.A Checkin via HTTP POST"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php"; http.request_body; content:"Plug="; startswith; fast_pattern; content:"Instituto="; distance:0; content:"&AV="; distance:0; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; reference:md5,0dfaf7a70859ddb86296276dc20ce1ae; classtype:command-and-control; sid:2022407; rev:5; metadata:created_at 2016_01_26, malware_family Win32_Kaicone_A, signature_severity Major, updated_at 2024_04_30;)