ET MALWARE W32/Emotet.v4 Checkin

alert http $HOME_NET any -> $EXTERNAL_NET [443,7080,8080,80] (
    msg:"ET MALWARE W32/Emotet.v4 Checkin";
    flow:established,to_server;
    http.header;
    pcre:"/^Host\x3a\s*?\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\x3a[03478]+/mi";
    http.user_agent;
    content:"|20|MSIE|20|";
    http.request_body;
    pcre:"/^[\x20-\x7e\r\n]{0,20}[^\x20-\x7e\r\n]/s";
    http.start;
    content:"POST / HTTP/1.1|0d 0a|User-Agent|3a 20|"; depth:29; fast_pattern;
    http.header_names;
    content:!"Accept";
    content:!"Referer";
    content:!"Content-Type";
    content:!"Cookie";
    content:!"TagId";
    classtype:command-and-control;
    sid:2035047; rev:7;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_07_24, deployment Perimeter, malware_family Emotet, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2020_08_31;
)