ET POLICY Nimiq Miner Initiating Mining Session with Skypool

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET POLICY Nimiq Miner Initiating Mining Session with Skypool";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.host;
    content:"nimiq.skypool.org"; fast_pattern;
    http.header_names;
    content:"Upgrade";
    content:"Sec-WebSocket-Version";
    reference:md5,2a0a5e1ed928eb01e322dd3680a13eba;
    classtype:policy-violation;
    sid:2026868; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_02_01, deployment Perimeter, malware_family CoinMiner, performance_impact Low, confidence High, signature_severity Major, tag Coinminer, updated_at 2020_08_27;
)