{"id":13838,"date":"2025-11-18T09:06:21","date_gmt":"2025-11-18T00:06:21","guid":{"rendered":"https:\/\/m365jp.net\/?p=13838"},"modified":"2025-11-18T09:06:40","modified_gmt":"2025-11-18T00:06:40","slug":"mc1187386-microsoft-defender-for-identity-alerts-transitioning-to-xdr-based-detection-platform","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-11-18-mc1187386-microsoft-defender-for-identity-alerts-transitioning-to-xdr-based-detection-platform","title":{"rendered":"MC1187386 | Microsoft Defender for Identity alerts transitioning to XDR-based detection platform"},"content":{"rendered":"
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MC1187386 | Microsoft Defender for Identity alerts transitioning to XDR-based detection platform<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n
Classification<\/th>\nstayInformed<\/td>\n<\/tr>\n
Last Updated<\/th>\n11\/17\/2025 23:46:18<\/td>\n<\/tr>\n
Start Time<\/th>\n11\/17\/2025 23:46:07<\/td>\n<\/tr>\n
End Time<\/th>\n02\/10\/2026 08:00:00<\/td>\n<\/tr>\n
Message Content<\/th>\n\n

[Introduction]<\/b><\/p>\n

<\/p>\n

Microsoft Defender for Identity classic alerts will transition to the XDR detection platform in mid-December 2025. This change improves detection accuracy and performance and aligns with our efforts to enhance security across environments.<\/p>\n

[When this will happen:]<\/b><\/p>\n

General availability (Production, GCC, and DoD): <\/b>Rollout will begin in mid-December 2025 and is expected to complete early January.<\/p>\n

[How this affects your organization:]<\/b><\/p>\n

<\/p>\n

Who is affected:<\/b> Admins managing Microsoft Defender for Identity alerts and workflows.<\/p>\n

<\/p>\n

What will happen:<\/b><\/p>\n

<\/p>\n

    <\/p>\n
  • Classic MDI alerts will move to the XDR detection platform.<\/li>\n

    <\/p>\n

  • Detector IDs will change for specific alerts.<\/li>\n

    <\/p>\n

  • Alert exclusions configured in MDI must be reconfigured using XDR Alert Tuning rules.<\/li>\n

    <\/ul>\n

    Affected alerts and new Detector IDs:<\/b><\/p>\n

    <\/p>\n <\/p>\n\n\n\n\n\n\n
    Alert Title<\/th>\nDetector ID<\/th>\n<\/tr>\n

    <\/p>\n

    Suspected brute-force attack (Kerberos, NTLM)<\/td>\nxdr_OnPremBruteforce<\/td>\n<\/tr>\n

    <\/p>\n

    Suspected password spray attack (Kerberos, NTLM)<\/td>\nxdr_OnPremPasswordSpray<\/td>\n<\/tr>\n

    <\/p>\n

    Anomalous SAMR activity<\/td>\nxdr_SamrReconnaissanceSecurityAlert<\/td>\n<\/tr>\n

    <\/tbody>\n<\/table>\n

    [What you can do to prepare:]<\/b><\/p>\n

    Action required:<\/b><\/p>\n

    <\/p>\n

      <\/p>\n
    • Update workflows and automation to use the new XDR Detector IDs.<\/li>\n

      <\/p>\n

    • Reconfigure any alert exclusions using XDR Alert Tuning rules.<\/li>\n

      <\/p>\n

    • Communicate this change to your security and operations teams.<\/li>\n

      <\/p>\n

    • Review Microsoft documentation for XDR Alert Tuning configuration.<\/li>\n

      <\/ul>\n

      [Compliance considerations:]<\/b><\/p>\n

      <\/p>\n

      No compliance considerations identified, review as appropriate for your organization.<\/p>\n<\/td>\n<\/tr>\n

    Machine Translation<\/th>\n\n

    [\u306f\u3058\u3081\u306b]<\/b><\/p>\n

    <\/p>\n

    Microsoft Defender for Identity\u306e\u30af\u30e9\u30b7\u30c3\u30af\u30a2\u30e9\u30fc\u30c8\u306f2025\u5e7412\u6708\u4e2d\u65ec\u306bXDR\u691c\u51fa\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306b\u79fb\u884c\u3057\u307e\u3059\u3002\u3053\u306e\u5909\u66f4\u306f\u691c\u77e5\u306e\u7cbe\u5ea6\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u3001\u74b0\u5883\u5168\u4f53\u3067\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316\u306e\u53d6\u308a\u7d44\u307f\u3068\u6574\u5408\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

    [\u3044\u3064\u8d77\u3053\u308b\u304b:]<\/b><\/p>\n

    \u4e00\u822c\u7a3c\u50cd(\u751f\u7523\u3001GCC\u3001\u56fd\u9632\u7dcf\u7701): <\/b>\u5c55\u958b\u306f2025\u5e7412\u6708\u4e2d\u65ec\u306b\u958b\u59cb\u3055\u308c\u30011\u6708\u521d\u65ec\u306b\u5b8c\u4e86\u3059\u308b\u898b\u8fbc\u307f\u3067\u3059\u3002<\/p>\n

    [\u3053\u308c\u304c\u3042\u306a\u305f\u306e\u7d44\u7e54\u306b\u3069\u306e\u3088\u3046\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u304b:]<\/b><\/p>\n

    <\/p>\n

    \u5f71\u97ff\u3092\u53d7\u3051\u308b\u4eba\u7269:<\/b> Microsoft Defender for Identity\u306e\u30a2\u30e9\u30fc\u30c8\u3084\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3092\u7ba1\u7406\u3059\u308b\u7ba1\u7406\u8005\u3002<\/p>\n

    <\/p>\n

    \u4eca\u5f8c\u306e\u5c55\u958b:<\/b><\/p>\n

    <\/p>\n

      <\/p>\n
    • \u5f93\u6765\u306eMDI\u30a2\u30e9\u30fc\u30c8\u306fXDR\u691c\u51fa\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306b\u79fb\u884c\u3057\u307e\u3059\u3002<\/li>\n

      <\/p>\n

    • \u7279\u5b9a\u306e\u30a2\u30e9\u30fc\u30c8\u3054\u3068\u306b\u691c\u51fa\u5668ID\u304c\u5909\u66f4\u3055\u308c\u307e\u3059\u3002<\/li>\n

      <\/p>\n

    • MDI\u3067\u8a2d\u5b9a\u3055\u308c\u305f\u30a2\u30e9\u30fc\u30c8\u9664\u5916\u306f\u3001XDR\u30a2\u30e9\u30fc\u30c8\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u30eb\u30fc\u30eb\u3067\u518d\u69cb\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n

      <\/ul>\n

      \u5f71\u97ff\u3092\u53d7\u3051\u305f\u30a2\u30e9\u30fc\u30c8\u3068\u65b0\u3057\u3044\u691c\u51fa\u5668ID:<\/b><\/p>\n

      <\/p>\n <\/p>\n\n\n\n\n\n
      \u30a2\u30e9\u30fc\u30c8\u30bf\u30a4\u30c8\u30eb<\/th>\n\u691c\u51fa\u5668ID<\/th>\n<\/tr>\n

      <\/p>\n

      \u7591\u308f\u3057\u3044\u529b\u4efb\u305b\u653b\u6483(\u30b1\u30eb\u30d9\u30ed\u30b9\u3001NTLM)<\/td>\nxdr_OnPremBruteforce<\/td>\n<\/tr>\n

      <\/p>\n

      \u7591\u308f\u3057\u3044\u30d1\u30b9\u30ef\u30fc\u30c9\u30b9\u30d7\u30ec\u30fc\u653b\u6483(Kerberos\u3001NTLM)<\/td>\nxdr_OnPremPasswordSpray<\/td>\n<\/tr>\n

      <\/p>\n

      \u7570\u5e38\u306aSAMR\u6d3b\u52d5<\/td>\nxdr_SamrReconnaissanceSecurityAlert<\/td>\n<\/tr>\n

      <\/tbody>\n<\/table>\n

      [\u6e96\u5099\u306e\u305f\u3081\u306b\u3067\u304d\u308b\u3053\u3068:]<\/b><\/p>\n

      \u5fc5\u8981\u306a\u884c\u52d5:<\/b><\/p>\n

      <\/p>\n

        <\/p>\n
      • \u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3068\u81ea\u52d5\u5316\u3092\u66f4\u65b0\u3057\u3001\u65b0\u3057\u3044XDR\u691c\u51fa\u5668ID\u3092\u6d3b\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n

        <\/p>\n

      • XDR\u30a2\u30e9\u30fc\u30c8\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u30eb\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u30a2\u30e9\u30fc\u30c8\u9664\u5916\u3092\u518d\u8a2d\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n

        <\/p>\n

      • \u3053\u306e\u5909\u66f4\u3092\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304a\u3088\u3073\u904b\u7528\u30c1\u30fc\u30e0\u306b\u4f1d\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n

        <\/p>\n

      • XDR\u30a2\u30e9\u30fc\u30c8\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u306e\u8a2d\u5b9a\u306b\u3064\u3044\u3066\u306fMicrosoft\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n

        <\/ul>\n

        [\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u4e0a\u306e\u8003\u616e\u4e8b\u9805:]<\/b><\/p>\n

        <\/p>\n

        \u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u4e0a\u306e\u61f8\u5ff5\u4e8b\u9805\u306f\u7279\u5b9a\u3055\u308c\u305a\u3001\u7d44\u7e54\u306b\u5fdc\u3058\u3066\u30ec\u30d3\u30e5\u30fc\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

        MC1187386 | Microsoft Defender for Identity alerts transitioning to XDR-based detection platform Classificatio […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-13838","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/13838","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/comments?post=13838"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/13838\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=13838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=13838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=13838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}