ET MALWARE Solarbot Check-in

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Solarbot Check-in";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"v="; depth:2;
    content:"&u=";
    content:"&w=";
    content:"&c=";
    pcre:"/&s=\{?[0-9a-f]{8}-?[0-9a-f]{4}-?[0-9a-f]{4}-?[0-9a-f]{4}-?[0-9a-f]{12}\}?(?:&|$)/i";
    http.header_names;
    content:!"Referer";
    reference:url,blog.avast.com/2013/09/25/win3264napolar-new-trojan-shines-on-the-cyber-crime-scene/;
    reference:url,www.welivesecurity.com/2013/09/25/win32napolar-a-new-bot-on-the-block/;
    reference:md5,2c344add2ee6201f4e2cdf604548408b;
    classtype:trojan-activity;
    sid:2017742; rev:5;
    metadata:created_at 2013_11_22, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_17;
)