ET MALWARE Win32/Kryptik.FVVZ Variant CnC Checkin 2

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Kryptik.FVVZ Variant CnC Checkin 2";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?hwid="; fast_pattern;
    content:"&taskid="; distance:0;
    content:"&status="; distance:0;
    http.header_names;
    content:!"User-Agent|0d 0a|";
    content:!"Accept";
    content:!"Referer|0d 0a|";
    reference:md5,92c3157d76c67668ca815541c6bb3ba8;
    classtype:command-and-control;
    sid:2024692; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_09_11, deployment Perimeter, malware_family Win32_Kryptik_FVVZ, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2020_08_12;
)