ET MALWARE Win32/Cridex Checkin

alert http $HOME_NET any -> $EXTERNAL_NET 8080 (
    msg:"ET MALWARE Win32/Cridex Checkin";
    flow:to_server,established;
    http.method;
    content:"POST";
    http.uri;
    pcre:"/^\/(?:[a-z0-9+]+?\/){3}$/i";
    http.header;
    content:"Accept|3a 20|*/*|0d 0a|Host|3a 20|"; depth:19;
    content:"Cache-Control|3a 20|no-cache"; distance:0;
    http.host.raw;
    pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\x3a8080$/";
    http.connection;
    content:"Keep-Alive"; bsize:10;
    http.content_len;
    byte_test:0,>,99,0,string,dec;
    byte_test:0,<,1000,0,string,dec;
    http.header_names;
    content:"|0d 0a|Accept|0d 0a|Host|0d 0a|Content-Length|0d 0a|Connection|0d 0a|Cache-Control|0d 0a 0d 0a|"; startswith;
    reference:md5,94e496decf90c4ba2fb3e7113a081726;
    classtype:command-and-control;
    sid:2017305; rev:5;
    metadata:created_at 2013_08_09, malware_family Win32_Cridex, signature_severity Major, updated_at 2020_11_17;
)