ET RETIRED Kimsuky ReconShark Related APT Activity

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET RETIRED Kimsuky ReconShark Related APT Activity";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/r.php"; fast_pattern; endswith;
    http.host;
    content:!".foxitservice.com";
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    content:"|0d 0a|Content-Type|0d 0a|";
    reference:url,www.sentinelone.com/labs/kimsuky-evolves-reconnaissance-capabilities-in-new-global-campaign/;
    classtype:trojan-activity;
    sid:2046259; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_06_13, deployment Perimeter, deployment SSLDecrypt, former_category MALWARE, malware_family ReconShark, performance_impact Significant, confidence High, signature_severity Major, updated_at 2025_04_17, reviewed_at 2025_04_17;
    target:src_ip;
)