{"id":131368,"date":"2025-10-23T10:43:20","date_gmt":"2025-10-23T01:43:20","guid":{"rendered":"https:\/\/softantenna.com\/blog\/?p=131368"},"modified":"2025-10-23T10:43:20","modified_gmt":"2025-10-23T01:43:20","slug":"windows-11-file-explorer-preview","status":"publish","type":"post","link":"https:\/\/softantenna.com\/blog\/windows-11-file-explorer-preview\/","title":{"rendered":"\u30d5\u30a1\u30a4\u30eb\u306e\u30d7\u30ec\u30d3\u30e5\u30fc\u304c\u3067\u304d\u306a\u3044\u306e\u306f\u306a\u305c\u306a\u306e\u304b\uff1fWindows 11\u306e\u65b0\u4ed5\u69d8\u3092\u89e3\u8aac"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/softantenna.com\/blog\/wp-content\/uploads\/2025\/10\/s_20251023-_102205.jpg\" alt=\"\" width=\"1132\" height=\"708\" class=\"aligncenter size-full wp-image-131369\" \/><\/p>\n<p>2025\u5e7410\u6708\u306eWindows 11\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306b\u3088\u308a\u3001Microsoft\u306f\u300c<strong>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305f\u30d5\u30a1\u30a4\u30eb<\/strong>\u300d\u306b\u5bfe\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30a8\u30af\u30b9\u30d7\u30ed\u30fc\u30e9\u30fc\u306e\u30d7\u30ec\u30d3\u30e5\u30fc\u6a5f\u80fd\u3092\u7121\u52b9\u5316\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u5909\u66f4\u306f\u3001NTLM\u30cf\u30c3\u30b7\u30e5\u6f0f\u6d29\u306e\u8106\u5f31\u6027\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3060\u3068\u3055\u308c\u3066\u3044\u307e\u3059(<a href=\"https:\/\/www.neowin.net\/news\/microsoft-disabled-a-file-explorer-feature-for-certain-files-here-is-why\/\">Neowin<\/a>)\u3002<\/p>\n<p class=\"is-style-icon_info\">NTLM(NT LAN Manager)\u306f\u3001Windows\u3067\u4f7f\u308f\u308c\u3066\u304d\u305f\u53e4\u3044\u8a8d\u8a3c\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u30cf\u30c3\u30b7\u30e5\u5316\u3055\u308c\u3066\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>Microsoft\u306e\u516c\u5f0f\u30b5\u30dd\u30fc\u30c8\u6587\u66f8\u300c<a href=\"https:\/\/support.microsoft.com\/en-us\/topic\/file-explorer-automatically-disables-the-preview-feature-for-files-downloaded-from-the-internet-56d55920-6187-4aae-a4f6-102454ef61fb\">File Explorer automatically disables the preview feature for files downloaded from the internet<\/a>\u300d\u306b\u3088\u308b\u3068\u3001HTML\u30bf\u30b0\u3092\u542b\u3080\u30d5\u30a1\u30a4\u30eb\u304c\u5916\u90e8\u30d1\u30b9\u3092\u53c2\u7167\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30d7\u30ec\u30d3\u30e5\u30fc\u6642\u306b\u30e6\u30fc\u30b6\u30fc\u306e\u8a8d\u8a3c\u60c5\u5831(NTLM\u30cf\u30c3\u30b7\u30e5)\u304c\u6f0f\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3068\u306e\u3053\u3068\u3002\u3053\u306e\u8106\u5f31\u6027\u3092\u9632\u3050\u305f\u3081\u3001Microsoft\u306f\u300cMark of the Web(MOTW)\u300d\u304c\u4ed8\u4e0e\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u306e\u30d7\u30ec\u30d3\u30e5\u30fc\u3092\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u7121\u52b9\u5316\u3057\u305f\u305d\u3046\u3067\u3059\u3002<\/p>\n<blockquote><p>\nThis change mitigates a vulnerability where NTLM hash leakage might occur if users preview files containing HTML tags (such as &lt;link&gt;, &lt;src&gt;, and so forth) referencing external paths. Attackers could exploit this preview feature to capture sensitive credentials.<\/p>\n<p>\u3053\u306e\u5909\u66f4\u306f\u3001NTLM\u30cf\u30c3\u30b7\u30e5\u304c\u6f0f\u6d29\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u8106\u5f31\u6027\u3092\u7de9\u548c\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u5916\u90e8\u30d1\u30b9\u3092\u53c2\u7167\u3059\u308bHTML\u30bf\u30b0\uff08\u4f8b\uff1a<link>\u3001<src>\u306a\u3069\uff09\u3092\u542b\u3080\u30d5\u30a1\u30a4\u30eb\u3092\u30e6\u30fc\u30b6\u30fc\u304c\u30d7\u30ec\u30d3\u30e5\u30fc\u3057\u305f\u969b\u306b\u3001\u653b\u6483\u8005\u304c\u3053\u306e\u30d7\u30ec\u30d3\u30e5\u30fc\u6a5f\u80fd\u3092\u60aa\u7528\u3057\u3066\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u8a8d\u8a3c\u60c5\u5831\u3092\u53d6\u5f97\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3057\u305f\u3002\n<\/p><\/blockquote>\n<p>\u5909\u66f4\u306e\u5f71\u97ff\u3092\u53d7\u3051\u308b\u74b0\u5883\u306f\u73fe\u5728\u30b5\u30dd\u30fc\u30c8\u671f\u9593\u4e2d\u306eWindows 11\u3001Windows Server 2012 \/ 2012 R2 \/ 2016 \/ 2019 \/ 23H2 \/ 2025\u3067\u3059\u3002<\/p>\n<p>\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u30d7\u30ec\u30d3\u30e5\u30fc\u306f\u7121\u52b9\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u624b\u52d5\u3067\u56de\u907f\u3059\u308b\u3053\u3068\u306f\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/softantenna.com\/blog\/wp-content\/uploads\/2025\/10\/s_20251023-_102227.jpg\" alt=\"\" width=\"1089\" height=\"681\" class=\"aligncenter size-full wp-image-131370\" \/><\/p>\n<p>\u30d5\u30a1\u30a4\u30eb\u3092\u53f3\u30af\u30ea\u30c3\u30af\u3057\u300c\u30d7\u30ed\u30d1\u30c6\u30a3 > \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u300d\u3067\u300c\u8a31\u53ef\u3059\u308b\u300d\u306b\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u3053\u306e\u5909\u66f4\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u300c\u958b\u304f\u300d\u64cd\u4f5c\u3084\u4ed6\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306b\u306f\u5f71\u97ff\u3057\u307e\u305b\u3093\u3002\u3042\u304f\u307e\u3067\u300c\u30d7\u30ec\u30d3\u30e5\u30fc\u300d\u6a5f\u80fd\u306e\u5236\u9650\u3067\u3059\u3002\u5909\u66f4\u306e\u8a73\u7d30\u306f<a href=\"https:\/\/support.microsoft.com\/en-us\/topic\/file-explorer-automatically-disables-the-preview-feature-for-files-downloaded-from-the-internet-56d55920-6187-4aae-a4f6-102454ef61fb\">\u3053\u3061\u3089<\/a>\u3067\u78ba\u8a8d\u53ef\u80fd\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>2025\u5e7410\u6708\u306eWindows 11\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306b\u3088\u308a\u3001Microsoft\u306f\u300c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u300d\u306b\u5bfe\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30a8\u30af\u30b9\u30d7\u30ed\u30fc\u30e9\u30fc\u306e\u30d7\u30ec\u30d3\u30e5\u30fc\u6a5f\u80fd\u3092\u7121\u52b9\u5316\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u5909\u66f4\u306f\u3001NTL [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":131369,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[3],"tags":[3298,4387],"class_list":["post-131368","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-windows","tag-windows","tag-windows11"],"_links":{"self":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/131368","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/comments?post=131368"}],"version-history":[{"count":0,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/131368\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media\/131369"}],"wp:attachment":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media?parent=131368"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/categories?post=131368"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/tags?post=131368"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}