ET MALWARE Dridex/Bugat/Feodo GET Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Dridex/Bugat/Feodo GET Checkin";
    flow:established,to_server;
    urilen:>25;
    http.method;
    content:"GET";
    http.header;
    content:"Content-Type|3a 20|octet/binary|0d 0a|Accept|3a 20|*/*|0d 0a|"; fast_pattern;
    http.host;
    pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}(?:\x3a\d{1,5})$/";
    http.header_names;
    content:"|0d 0a|Host|0d 0a|Connection|0d 0a|User-Agent|0d 0a|Content-Type|0d 0a|Accept|0d 0a|Accept-Language|0d 0a 0d 0a|"; bsize:73;
    http.content_type;
    content:"octet/binary"; bsize:13;
    reference:md5,2ddb6cb347eb7939545a1801c72f1f3f;
    classtype:command-and-control;
    sid:2018772; rev:6;
    metadata:created_at 2014_07_24, signature_severity Major, updated_at 2020_05_12;
)