ET MALWARE DMSpammer HTTP Post Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE DMSpammer HTTP Post Checkin";
    flow:established,to_server;
    http.method;
    content:"POST"; nocase;
    http.uri;
    content:"/stat";
    content:".php";
    pcre:"/\/stat\d+\.php/";
    http.user_agent;
    content:"Mozilla/4.0 (compatible|3b 20|Synapse)"; depth:33; endswith; fast_pattern;
    http.request_body;
    content:"x|9c|";
    classtype:command-and-control;
    sid:2008271; rev:11;
    metadata:created_at 2010_07_30, signature_severity Major, updated_at 2020_10_13;
)