ET MALWARE APT29 Duke Variant Malware CnC Checkin Observed

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE APT29 Duke Variant Malware CnC Checkin Observed";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/api/v1/users/me/subscriptions";
    http.user_agent;
    content:"curl/";
    http.host;
    content:"toyy.zulipchat.com"; fast_pattern;
    reference:url,blog.eclecticiq.com/german-embassy-lure-likely-part-of-campaign-against-nato-aligned-ministries-of-foreign-affairs;
    classtype:trojan-activity;
    sid:2047644; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2023_08_14, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_08_14;
    target:src_ip;
)