{"id":99589,"date":"2023-10-10T09:45:53","date_gmt":"2023-10-10T16:45:53","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=99589"},"modified":"2025-08-25T04:05:40","modified_gmt":"2025-08-25T11:05:40","slug":"using-wireshark-identifying-hosts-and-users","status":"publish","type":"post","link":"https:\/\/origin-unit42.paloaltonetworks.com\/ja\/using-wireshark-identifying-hosts-and-users\/","title":{"rendered":"Wireshark \u306b\u3088\u308b\u30d1\u30b1\u30c3\u30c8\u89e3\u6790\u8b1b\u5ea7 3: \u30db\u30b9\u30c8\u3068\u30e6\u30fc\u30b6\u30fc\u3092\u7279\u5b9a\u3059\u308b (2023-10-11 \u66f4\u65b0)"},"content":{"rendered":"<h2><a id=\"post-99589-_g7amvj8twxx5\"><\/a>\u6982\u8981<\/h2>\n<p>\u30db\u30b9\u30c8\u304c\u611f\u67d3\u3057\u305f\u308a\u4fb5\u5bb3\u3055\u308c\u305f\u308a\u3057\u305f\u3068\u304d\u3001\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u30ec\u30b9\u30dd\u30f3\u30b9\u62c5\u5f53\u8005\u306f\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30db\u30b9\u30c8\u3084\u30e6\u30fc\u30b6\u30fc\u3092\u3059\u3070\u3084\u304f\u8b58\u5225\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u3053\u3046\u3057\u305f\u5834\u5408\u3001\u7d44\u7e54\u306b\u3088\u3063\u3066\u306f\u3001\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30db\u30b9\u30c8\u304c\u751f\u6210\u3057\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3 (pcap) \u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001Wireshark \u3092\u4f7f\u3063\u3066 pcap \u5185\u306e\u30db\u30b9\u30c8 \u30c7\u30fc\u30bf\u3068\u30e6\u30fc\u30b6\u30fc \u30c7\u30fc\u30bf\u3092\u8b58\u5225\u3057\u307e\u3059\u3002\u672c\u7a3f\u306f <a href=\"https:\/\/unit42.paloaltonetworks.jp\/tag\/wireshark-tutorial-ja\/\" target=\"_blank\" rel=\"noopener\">Wireshark \u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb \u30b7\u30ea\u30fc\u30ba<\/a>\u306e\u9023\u8f09\u7b2c 3 \u56de\u3067\u3059\u3002\u672c\u30b7\u30ea\u30fc\u30ba\u3067\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5c02\u9580\u5bb6\u304c Wireshark \u3092\u3088\u308a\u52b9\u679c\u7684\u306b\u4f7f\u7528\u3059\u308b\u3046\u3048\u3067\u5f79\u7acb\u3064\u30d2\u30f3\u30c8\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u672c\u7a3f\u306f 2019 \u5e74 3 \u6708\u306b\u521d\u7248\u3092\u516c\u958b\u3057\u3001\u305d\u306e\u5f8c 2023 \u5e74\u306b\u66f4\u65b0\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<table style=\"width: 100%;\">\n<thead>\n<tr>\n<td style=\"width: 35%;\"><b>\u95a2\u9023\u3059\u308b Unit 42 \u306e\u30c8\u30d4\u30c3\u30af<\/b><\/td>\n<td style=\"width: 100%;\"><a href=\"https:\/\/unit42.paloaltonetworks.jp\/tag\/pcap-ja\/\" target=\"_blank\" rel=\"noopener\"><strong>pcap<\/strong><\/a><strong>, <\/strong><a href=\"https:\/\/unit42.paloaltonetworks.jp\/tag\/wireshark-ja\/\" target=\"_blank\" rel=\"noopener\"><strong>Wireshark<\/strong><\/a><strong>, <\/strong><a href=\"https:\/\/unit42.paloaltonetworks.jp\/tag\/wireshark-tutorial-ja\/\" target=\"_blank\" rel=\"noopener\"><strong>Wireshark Tutorial<\/strong><\/a><\/td>\n<\/tr>\n<\/thead>\n<\/table>\n<h2><a id=\"post-99589-_qu3am77ns7b3\"><\/a>\u8981\u4ef6\u304a\u3088\u3073\u88dc\u8db3\u8cc7\u6599<\/h2>\n<p>\u672c\u7a3f\u306e\u5185\u5bb9\u3092\u3058\u3085\u3046\u3076\u3093\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u3001<a href=\"https:\/\/unit42.paloaltonetworks.jp\/unit42-customizing-wireshark-changing-column-display\/\" target=\"_blank\" rel=\"noopener\">Wireshark \u306e\u30d1\u30b1\u30c3\u30c8\u4e00\u89a7\u3067\u5217\u8868\u793a\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3059\u308b\u65b9\u6cd5<\/a>\u3068<a href=\"https:\/\/unit42.paloaltonetworks.jp\/using-wireshark-display-filter-expressions\/\" target=\"_blank\" rel=\"noopener\">\u8868\u793a\u30d5\u30a3\u30eb\u30bf\u30fc\u5f0f\u306e\u4f7f\u3044\u304b\u305f<\/a>\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u305f\u524d\u56de\u307e\u3067\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u306e\u5185\u5bb9\u3092\u78ba\u8a8d\u3057\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002\u307e\u305f\u3001Wireshark \u306e\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3 (\u6700\u4f4e\u3067\u3082\u30d0\u30fc\u30b8\u30e7\u30f3 3.6.2 \u304b\u305d\u308c\u4ee5\u964d) \u3092\u6e96\u5099\u3057\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u672c\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001Wireshark \u30d0\u30fc\u30b8\u30e7\u30f3 4.0.8 \u3092\u4f7f\u3044\u3001\u4ee5\u524d\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3057\u305f\u5217\u8868\u793a\u3092\u4f7f\u3044\u307e\u3059\u3002\u304a\u4f7f\u3044\u306e\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0 \u30b7\u30b9\u30c6\u30e0 (OS) \u7528\u306e Wireshark \u306e\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u3046\u3053\u3068\u3092\u5f37\u304f\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3092\u9032\u3081\u308b\u306b\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u57fa\u790e\u3092\u7406\u89e3\u3057\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u672c\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u4f7f\u3046 pcap \u30d5\u30a1\u30a4\u30eb\u306f\u3001<a href=\"https:\/\/github.com\/PaloAltoNetworks\/Unit42-Wireshark-tutorials\/blob\/main\/Wireshark-tutorial-identifying-hosts-and-users-5-pcaps.zip\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089\u306e GitHub \u30ea\u30dd\u30b8\u30c8\u30ea\u30fc<\/a>\u306b\u30db\u30b9\u30c8\u3057\u305f\u30d1\u30b9\u30ef\u30fc\u30c9\u4ed8\u304d ZIP \u30a2\u30fc\u30ab\u30a4\u30d6\u306b\u683c\u7d0d\u3057\u3066\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u304b\u3089 <span style=\"font-family: 'courier new', courier, monospace;\">Wireshark-tutorial-identifying-hosts-and-users-5-pcaps.zip<\/span> \u3068\u3044\u3046\u540d\u524d\u306e ZIP \u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u304f\u3060\u3055\u3044\u3002ZIP \u30d5\u30a1\u30a4\u30eb\u5c55\u958b\u7528\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u300c<em>infected<\/em>\u300d\u3067\u3059 (\u56f3 1)\u3002<\/p>\n<figure id=\"attachment_130508\" aria-describedby=\"caption-attachment-130508\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130508 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-1.jpeg\" alt=\"\u753b\u50cf 1 \u306f\u3001Palo Alto Networks Unit 42 Wireshark \u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb GitHub \u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u9ed2\u3044\u77e2\u5370\u306f\u3001\u30da\u30fc\u30b8\u4e0a\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9 \u30dc\u30bf\u30f3\u3092\u62bc\u3059\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u30022 \u756a\u76ee\u306e\u9ed2\u3044\u77e2\u5370\u306f\u3001\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305f\u30d5\u30a9\u30eb\u30c0\u30fc\u5185\u306e zip \u30d5\u30a1\u30a4\u30eb\u3092\u9078\u629e\u3057\u305f\u5f8c\u300cPassword required (\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u5fc5\u8981)\u300d\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u308b\u30dd\u30c3\u30d7\u30a2\u30c3\u30d7\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u5165\u529b\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u6700\u5f8c\u306e\u9ed2\u3044\u77e2\u5370\u306f\u3001ZIP \u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u6307\u3057\u3066\u3044\u307e\u3059\u3002\" width=\"900\" height=\"791\" \/><figcaption id=\"caption-attachment-130508\" class=\"wp-caption-text\">\u56f31. \u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u7528\u306e pcap \u30d5\u30a1\u30a4\u30eb\u3092\u53d6\u5f97<\/figcaption><\/figure>\n<p>ZIP \u3092\u5c55\u958b\u3059\u308b\u3068\u4ee5\u4e0b\u306e 5 \u3064\u306e pcap \u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">Wireshark-tutorial-identifying-hosts-and-users-1-of-5.pcap<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">Wireshark-tutorial-identifying-hosts-and-users-2-of-5.pcap<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">Wireshark-tutorial-identifying-hosts-and-users-3-of-5.pcap<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">Wireshark-tutorial-identifying-hosts-and-users-4-of-5.pcap<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">Wireshark-tutorial-identifying-hosts-and-users-5-of-5.pcap<\/span><\/li>\n<\/ul>\n<h2><a id=\"post-99589-_ecxlpsjtq2b\"><\/a>DHCP \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304b\u3089\u306e\u30db\u30b9\u30c8\u60c5\u5831<\/h2>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u30db\u30b9\u30c8\u304c\u751f\u6210\u3057\u305f\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u306f\u3001\u8b58\u5225\u5b50\u304c 3 \u3064\u5b58\u5728\u3057\u3066\u3044\u307e\u3059\u3002<a href=\"https:\/\/ja.wikipedia.org\/wiki\/MAC%E3%82%A2%E3%83%89%E3%83%AC%E3%82%B9\" target=\"_blank\" rel=\"noopener\">Mac \u30a2\u30c9\u30ec\u30b9<\/a>\u3001 <a href=\"https:\/\/ja.wikipedia.org\/wiki\/IP%E3%82%A2%E3%83%89%E3%83%AC%E3%82%B9\" target=\"_blank\" rel=\"noopener\">IP \u30a2\u30c9\u30ec\u30b9<\/a>\u3001\u305d\u3057\u3066<a href=\"https:\/\/ja.wikipedia.org\/wiki\/%E3%83%9B%E3%82%B9%E3%83%88%E5%90%8D\" target=\"_blank\" rel=\"noopener\">\u30db\u30b9\u30c8\u540d<\/a>\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u6700\u521d\u306b\u4f7f\u3046 pcap \u306f <span style=\"font-family: 'courier new', courier, monospace;\">Wireshark-tutorial-identifying-hosts-and-users-1-of-5.pcap<\/span> \u3067\u3059\u3002\u3053\u306e pcap \u306f Ethernet \u30a2\u30c9\u30ec\u30b9 <span style=\"font-family: 'courier new', courier, monospace;\">f8:ff:c2:04:a5:7b<\/span> \u3068\u306e\u9593\u3067\u3084\u308a\u3068\u308a\u3055\u308c\u305f\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304b\u3089\u5f97\u305f\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u4ee5\u524d\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u4f5c\u6210\u3057\u305f\u300cbasic\u300dWeb \u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u9069\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u3055\u304d\u306e MAC \u30a2\u30c9\u30ec\u30b9 <span style=\"font-family: 'courier new', courier, monospace;\">f8:ff:c2:04:a5:7b<\/span> \u306f\u3001IP \u30a2\u30c9\u30ec\u30b9 <span style=\"font-family: 'courier new', courier, monospace;\">172.16.1[.]38<\/span> \u306b\u7d10\u3065\u3044\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059 (\u56f3 2)\u3002<\/p>\n<figure id=\"attachment_130510\" aria-describedby=\"caption-attachment-130510\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130511 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-2-ja.png\" alt=\"\u753b\u50cf 2 \u306f\u3001Src \u306e\u5217\u304c\u9ed2\u3044\u56db\u89d2\u5f62\u3067\u5f37\u8abf\u8868\u793a\u3055\u308c\u3066\u3044\u308b Wireshark \u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u77e2\u5370\u306f\u3001\u4e0b\u90e8\u30da\u30a4\u30f3\u306e\u9001\u4fe1\u5143 MAC \u30a2\u30c9\u30ec\u30b9\u3092\u5f37\u8abf\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u5225\u306e\u77e2\u5370\u306f\u9001\u4fe1\u5143 IP \u30a2\u30c9\u30ec\u30b9\u3092\u5f37\u8abf\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002\" width=\"900\" height=\"520\" \/><figcaption id=\"caption-attachment-130510\" class=\"wp-caption-text\">\u56f32. Wireshark \u3067 IP \u30a2\u30c9\u30ec\u30b9\u3068 MAC \u30a2\u30c9\u30ec\u30b9\u3092\u7d10\u3065\u3051\u308b<\/figcaption><\/figure>\n<p><a href=\"https:\/\/wiki.wireshark.org\/DHCP\" target=\"_blank\" rel=\"noopener\">DHCP<\/a>\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u78ba\u8a8d\u3059\u308c\u3070\u3053\u306e IP \u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u3063\u3066\u3044\u308b\u30db\u30b9\u30c8\u540d\u304c\u308f\u304b\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u306b\u306f\u3001\u307e\u305a Wireshark \u306e [\u8868\u793a\u30d5\u30a3\u30eb\u30bf] \u30c4\u30fc\u30eb\u30d0\u30fc\u306b\u300c<span style=\"font-family: 'courier new', courier, monospace;\">dhcp<\/span>\u300d\u3068\u5165\u529b\u3057\u3001DHCP \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u307e\u3059 (\u56f3 3)\u3002<\/p>\n<figure id=\"attachment_130512\" aria-describedby=\"caption-attachment-130512\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130512 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-3.jpeg\" alt=\"\u753b\u50cf 3 \u306f DHCP \u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u305f\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e Wireshark \u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\" width=\"900\" height=\"238\" \/><figcaption id=\"caption-attachment-130512\" class=\"wp-caption-text\">\u56f33. Wireshark \u3067 DHCP \u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0<\/figcaption><\/figure>\n<p>\u8868\u793a\u3055\u308c\u305f\u7d50\u679c\u304b\u3089\u3001[Info] \u5217\u306b\u300c<span style=\"font-family: 'courier new', courier, monospace;\">DHCP Request<\/span>\u300d\u3068\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u6700\u521d\u306e\u30d5\u30ec\u30fc\u30e0 (\u884c) \u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u56f3 4 \u3092\u53c2\u8003\u306b\u3001[\u30d1\u30b1\u30c3\u30c8\u8a73\u7d30\u90e8] \u306b\u79fb\u52d5\u3057\u3001\u300c<span style=\"font-family: 'courier new', courier, monospace;\">Dynamic Host Configuration Protocol (Request)<\/span>\u300d\u306e\u884c\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u5c55\u958b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<figure id=\"attachment_130514\" aria-describedby=\"caption-attachment-130514\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130514 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-4.jpeg\" alt=\"\u753b\u50cf 4 \u306f Wireshark \u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u30d5\u30a3\u30eb\u30bf\u30fc\u306fdhcp\u3067\u3059\u3002\u4e0a\u90e8\u30da\u30a4\u30f3\u3067\u306f\u3001\u77e2\u5370\u3067\u793a\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u306b\u7279\u5b9a\u306e\u884c\u304c\u9078\u629e\u3055\u308c\u3066\u3044\u307e\u3059 (\u6fc3\u3044\u9752)\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4e0b\u90e8\u30da\u30a4\u30f3\u306e\u60c5\u5831\u304c\u5c55\u958b\u3055\u308c\u3001DHCP \u884c\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\" width=\"900\" height=\"537\" \/><figcaption id=\"caption-attachment-130514\" class=\"wp-caption-text\">\u56f34. DHCP Request \u3092\u9078\u629e\u3057\u305f\u5f8c\u3001Dynamic Host Configuration Protocol (Request) \u306e\u884c\u3092\u5c55\u958b<\/figcaption><\/figure>\n<p>[\u30d1\u30b1\u30c3\u30c8\u8a73\u7d30\u90e8] \u3092\u4e0b\u306b\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u3066\u3001<span style=\"font-family: 'courier new', courier, monospace;\">Option: (50) Requested IP Address<\/span> \u3068 <span style=\"font-family: 'courier new', courier, monospace;\">Option: (12) Host Name<\/span> \u3068\u3044\u3046\u884c\u3092\u56f3 5 \u306b\u793a\u3059\u3088\u3046\u306b\u5c55\u958b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3067\u3001MAC \u30a2\u30c9\u30ec\u30b9 <span style=\"font-family: 'courier new', courier, monospace;\">f8:ff:c2:04:a5:7b<\/span> \u3092\u3082\u3064\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u30db\u30b9\u30c8\u540d\u306f <span style=\"font-family: 'courier new', courier, monospace;\">jeremiahs-MBP<\/span> \u3067\u3001DHCP \u30ea\u30af\u30a8\u30b9\u30c8\u3092\u51fa\u3057\u305f IP \u30a2\u30c9\u30ec\u30b9\u304c <span style=\"font-family: 'courier new', courier, monospace;\">172.16.1[.]38<\/span> \u3067\u3042\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_130516\" aria-describedby=\"caption-attachment-130516\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130516 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-5.jpeg\" alt=\"\u753b\u50cf 5 \u306f\u3001DHCP \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e Wireshark \u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u4e0a\u304b\u3089\u4e0b\u306b\u8d64\u8272\u3067\u5f37\u8abf\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u306e\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e MAC \u30a2\u30c9\u30ec\u30b9\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u51fa\u3057\u305f IP \u30a2\u30c9\u30ec\u30b9\u3001\u30db\u30b9\u30c8\u540d (jeremiahs-MBP) \u3067\u3059\u3002\" width=\"900\" height=\"656\" \/><figcaption id=\"caption-attachment-130516\" class=\"wp-caption-text\">\u56f35. MAC \u30a2\u30c9\u30ec\u30b9\u3001IP \u30a2\u30c9\u30ec\u30b9\u3001\u30db\u30b9\u30c8\u540d\u3092 DHCP \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u4f7f\u3063\u3066\u7d10\u4ed8\u3051\u308b<\/figcaption><\/figure>\n<p>\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f Wireshark \u306f MAC \u30a2\u30c9\u30ec\u30b9\u306e\u6700\u521d\u306e 3 \u30d0\u30a4\u30c8\u3092\u30d9\u30f3\u30c0\u30fc ID \u306b\u89e3\u6c7a\u3057\u3088\u3046\u3068\u3057\u307e\u3059\u3002\u56f3 5 \u3067\u306f\u3001MAC \u30a2\u30c9\u30ec\u30b9\u306e\u30d9\u30f3\u30c0\u30fc ID \u304c <span style=\"font-family: 'courier new', courier, monospace;\">Apple_<\/span> \u3068\u8868\u793a\u3055\u308c\u3066\u3044\u307e\u3059 [\u8a33\u6ce8: \u304a\u4f7f\u3044\u306e\u74b0\u5883\u3067\u3053\u3053\u306b\u30d9\u30f3\u30c0\u30fc\u540d\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001Wireshark \u306e Preferences \u30e1\u30cb\u30e5\u30fc\u306e Name Resolution \u3067 Resolve MAC addresses \u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u306b\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u308b\u3053\u3068\u3067\u30d9\u30f3\u30c0\u30fc\u540d\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u3053\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u307e\u3059]\u3002\u3053\u306e\u60c5\u5831\u306b\u52a0\u3048\u3066\u30db\u30b9\u30c8\u540d\u304c <span style=\"font-family: 'courier new', courier, monospace;\">MBP<\/span> \u3067\u7d42\u308f\u3063\u3066\u3044\u308b\u3053\u3068\u304b\u3089\u3001\u3053\u308c\u306f Apple MacBook Pro \u306e\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e pcap \u306b\u306f\u3055\u307e\u3056\u307e\u306a Apple \u30c9\u30e1\u30a4\u30f3\u3078\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3082\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u3053\u308c\u304c Apple \u88fd\u30db\u30b9\u30c8\u3067\u3042\u308b\u3053\u3068\u3092\u3055\u3089\u306b\u793a\u5506\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u30e2\u30d0\u30a4\u30eb \u30c7\u30d0\u30a4\u30b9\u3067\u306f MAC \u30a2\u30c9\u30ec\u30b9\u304c\u533f\u540d\u5316\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u30e6\u30fc\u30b6\u30fc\u304c MAC \u30a2\u30c9\u30ec\u30b9\u3092\u5909\u66f4\u3057\u3066\u5225\u306e\u30d9\u30f3\u30c0\u30fc\u306b\u306a\u308a\u3059\u307e\u3059\u3053\u3068\u3082\u7c21\u5358\u3067\u3059\u3002\u3053\u3046\u3057\u305f\u533f\u540d\u5316\u3084\u30b9\u30d7\u30fc\u30d5\u30a3\u30f3\u30b0\u3092\u8003\u3048\u308b\u3068\u3001\u30db\u30b9\u30c8\u306e\u8b58\u5225\u3092 MAC \u30a2\u30c9\u30ec\u30b9\u306e\u307f\u306b\u57fa\u3065\u3044\u3066\u884c\u3046\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h2><a id=\"post-99589-_numxl0cvlh0i\"><\/a>NetBIOS \u30cd\u30fc\u30e0\u30b5\u30fc\u30d3\u30b9 (NBNS) \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304b\u3089\u306e\u30db\u30b9\u30c8\u60c5\u5831<\/h2>\n<p>DHCP \u30ea\u30fc\u30b9\u306e\u66f4\u65b0\u983b\u5ea6\u306b\u3088\u3063\u3066\u306f pcap \u306b DHCP \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u542b\u307e\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u3067\u3082 <a href=\"https:\/\/wiki.wireshark.org\/NetBIOS\/NBNS\" target=\"_blank\" rel=\"noopener\">NBNS<\/a> \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u4f7f\u3063\u3066 Microsoft Windows \u3092\u5b9f\u884c\u3057\u3066\u3044\u308b\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3084 macOS \u3092\u5b9f\u884c\u3057\u3066\u3044\u308b Apple \u30db\u30b9\u30c8\u306e\u30db\u30b9\u30c8\u540d\u3092\u8b58\u5225\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u6700\u521d\u306e pcap \u3067\u300c<span style=\"font-family: 'courier new', courier, monospace;\">nbns<\/span>\u300d\u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u3001[Info] \u5217\u306e\u8a73\u7d30\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4ee5\u4e0b\u306e\u56f3 6 \u306b\u793a\u3059\u3088\u3046\u306b\u3001DHCP \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3067\u4ee5\u524d\u306b\u691c\u51fa\u3057\u305f\u306e\u3068\u540c\u3058\u30db\u30b9\u30c8\u540d <span style=\"font-family: 'courier new', courier, monospace;\">JEREMIAHS-MBP<\/span> \u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_130518\" aria-describedby=\"caption-attachment-130518\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130518 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-6.jpeg\" alt=\"\u753b\u50cf 6 \u306f Wireshark \u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u30d5\u30a3\u30eb\u30bf\u30fc\u306f nbns \u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u9ed2\u3044\u77e2\u5370\u306f\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304b\u3089\u30db\u30b9\u30c8\u540d Jeremiahs-MBP \u3092\u898b\u3064\u3051\u308b\u65b9\u6cd5\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002 \" width=\"900\" height=\"353\" \/><figcaption id=\"caption-attachment-130518\" class=\"wp-caption-text\">\u56f36. \u6700\u521d\u306e pcap \u3067 NBNS \u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304b\u3089\u30db\u30b9\u30c8\u540d\u3092\u898b\u3064\u3051\u305f\u3068\u3053\u308d<\/figcaption><\/figure>\n<p>Windows \u30db\u30b9\u30c8\u304b\u3089\u306e NBNS \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8abf\u3079\u3066\u307f\u307e\u3057\u3087\u3046\u30022 \u3064\u3081\u306e pcap (<span style=\"font-family: 'courier new', courier, monospace;\">Wireshark-tutorial-identifying-hosts-and-users-2-of-5.pcap<\/span>) \u3092\u958b\u3044\u3066\u3001[\u8868\u793a\u30d5\u30a3\u30eb\u30bf] \u30c4\u30fc\u30eb\u30d0\u30fc\u306b\u300c<span style=\"font-family: 'courier new', courier, monospace;\">nbns<\/span>\u300d\u3068\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u3053\u306e pcap \u306f\u3001MAC \u30a2\u30c9\u30ec\u30b9\u304c <span style=\"font-family: 'courier new', courier, monospace;\">78:c2:3b:b8:93:e8<\/span> \u3067\u3001\u30ed\u30fc\u30ab\u30eb IP \u30a2\u30c9\u30ec\u30b9\u3068\u3057\u3066 <span style=\"font-family: 'courier new', courier, monospace;\">172.16.1[.]101<\/span> \u3092\u4f7f\u3063\u3066\u3044\u308b Windows \u30db\u30b9\u30c8\u304b\u3089\u306e\u3082\u306e\u3067\u3059\u3002\u307e\u305f Windows \u30db\u30b9\u30c8\u540d\u306f <span style=\"font-family: 'courier new', courier, monospace;\">DESKTOP-HVKYP4S<\/span> \u3067\u3059 (\u56f3 7)\u3002<\/p>\n<figure id=\"attachment_130520\" aria-describedby=\"caption-attachment-130520\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130521 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-7-ja.png\" alt=\"\u753b\u50cf 7 \u306f Wireshark \u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002Src \u306e\u5217\u306f\u9ed2\u3044\u56db\u89d2\u3067\u5f37\u8abf\u8868\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002MAC \u30a2\u30c9\u30ec\u30b9\u306f\u3001Ethernet II \u306e\u884c\u304b\u3089\u59cb\u307e\u308b\u30d1\u30b1\u30c3\u30c8\u8a73\u7d30\u90e8\u306b\u8868\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002IP \u30a2\u30c9\u30ec\u30b9\u306f\u3001Src \u5217\u3068\u30d1\u30b1\u30c3\u30c8\u8a73\u7d30\u90e8\u306e\u4e21\u65b9\u306b\u8868\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30db\u30b9\u30c8\u306f\u30d1\u30b1\u30c3\u30c8\u8a73\u7d30\u90e8\u306e [Additional records] \u304b\u3089\u3082\u8b58\u5225\u3067\u304d\u307e\u3059\u3002 \" width=\"900\" height=\"690\" \/><figcaption id=\"caption-attachment-130520\" class=\"wp-caption-text\">\u56f37. MAC \u30a2\u30c9\u30ec\u30b9\u3001IP \u30a2\u30c9\u30ec\u30b9\u3001\u30db\u30b9\u30c8\u540d\u3092 NBNS \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u4f7f\u3063\u3066\u7d10\u4ed8\u3051\u308b<\/figcaption><\/figure>\n<h2><a id=\"post-99589-_h2nggv6rpo7r\"><\/a>HTTP \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304b\u3089\u306e\u30c7\u30d0\u30a4\u30b9 \u30e2\u30c7\u30eb\u3068\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0 \u30b7\u30b9\u30c6\u30e0 (OS)<\/h2>\n<p>Web \u30d6\u30e9\u30a6\u30b6\u30fc\u3078\u306e HTTP \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u5e73\u6587\u306a\u3089\u305d\u3053\u304b\u3089 OS \u304c\u308f\u304b\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u60c5\u5831\u306f HTTP \u30ea\u30af\u30a8\u30b9\u30c8 \u30d8\u30c3\u30c0\u30fc\u306e User-Agent \u884c\u306b\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3053\u306e\u65b9\u6cd5\u306f\u614e\u91cd\u306b\u4f7f\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u3042\u308b\u7a2e\u306e<a href=\"https:\/\/chrome.google.com\/webstore\/detail\/user-agent-switcher-for-c\/djflhoibgkdhkhhcedjiklpkjnoahfmg\" target=\"_blank\" rel=\"noopener\">\u30d6\u30e9\u30a6\u30b6\u30fc\u62e1\u5f35\u6a5f\u80fd<\/a>\u3084\u3001<a href=\"https:\/\/osxdaily.com\/2011\/07\/16\/change-user-agent-with-curl\/\" target=\"_blank\" rel=\"noopener\">cURL<\/a> \u3068\u3044\u3063\u305f\u30c4\u30fc\u30eb\u3092\u4f7f\u3048\u3070\u3001HTTP \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u5185\u306e User-Agent \u884c\u306e\u5909\u66f4\u3084\u507d\u88c5\u306f\u7c21\u5358\u3067\u3059\u3002\u3053\u3053\u4f55\u5e74\u3082\u3055\u307e\u3056\u307e\u306a\u30de\u30eb\u30a6\u30a7\u30a2 \u30b5\u30f3\u30d7\u30eb\u304c\u30b3\u30de\u30f3\u30c9 &amp; \u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3067 <a href=\"https:\/\/blog.talosintelligence.com\/web-proxies-user-agent-strings-and\/\" target=\"_blank\" rel=\"noopener\">User-Agent \u884c\u3092\u507d\u88c5<\/a>\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>2023 \u5e74\u6642\u70b9\u3067\u30d6\u30e9\u30a6\u30b6\u30fc\u958b\u767a\u8005\u306f <a href=\"https:\/\/developer.chrome.com\/en\/blog\/user-agent-reduction-deprecation-trial\/\" target=\"_blank\" rel=\"noopener\">User-Agent \u884c\u306b\u542b\u3081\u308b\u60c5\u5831\u3092\u6e1b\u3089\u3057\u3066\u3044\u307e\u3059<\/a>\u3002\u3053\u306e\u305f\u3081\u3001\u6700\u65b0\u306e Web \u30d6\u30e9\u30a6\u30b6\u30fc\u306e\u307b\u3068\u3093\u3069\u306f\u30db\u30b9\u30c8\u304c\u4f7f\u7528\u3057\u3066\u3044\u308b\u5b9f\u969b\u306e OS \u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u5831\u544a\u3057\u306a\u304f\u306a\u308a\u307e\u3057\u305f\u3002\u3053\u3046\u3057\u305f\u3053\u3068\u304b\u3089\u3053\u306e\u65b9\u6cd5\u306f\u4fe1\u983c\u6027\u304c\u4f4e\u304f\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002<\/p>\n<p>\u3068\u306f\u3044\u3048\u3001\u30d6\u30e9\u30a6\u30b6\u30fc\u304c\u751f\u6210\u3057\u305f\u5e73\u6587 HTTP \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304b\u3089\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306e\u7a2e\u985e (Windows\u3001Apple \u30c7\u30d0\u30a4\u30b9\u3001Linux\u3001\u307e\u305f\u306f Android) \u3092\u8b58\u5225\u3059\u308b\u306e\u306b\u306f\u307e\u3060\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<p>3 \u3064\u3081\u306e pcap\u3001<span style=\"font-family: 'courier new', courier, monospace;\">Wireshark-tutorial-filter-expressions-3-of-5.pcap<\/span> \u3092 Wireshark \u3067\u958b\u3044\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u306e pcap \u306f\u3042\u308b Windows \u30db\u30b9\u30c8\u304c\u751f\u6210\u3057\u305f\u3082\u306e\u3067\u3059\u304c\u3001\u3053\u306e\u74b0\u5883\u3067\u306f IPv4 \u3068 IPv6 \u306e\u4e21\u65b9\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u300c<span style=\"font-family: 'courier new', courier, monospace;\">http.accept_language<\/span>\u300d\u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3059\u308b\u3068\u3001Web \u30d6\u30e9\u30a6\u30b6\u30fc\u3078\u306e\u5e73\u6587 Web \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u898b\u3064\u304b\u308a\u307e\u3059\u3002\u3053\u306e\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3067\u300c<span style=\"font-family: 'courier new', courier, monospace;\"><a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/HTTP\/Headers\/Accept-Language\" target=\"_blank\" rel=\"noopener\">Accept-Language<\/a><\/span>\u300d\u3068\u3044\u3046\u30d8\u30c3\u30c0\u30fc\u884c\u3092\u3082\u3064 HTTP \u30ea\u30af\u30a8\u30b9\u30c8\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u304c\u3001\u3053\u306e\u30d8\u30c3\u30c0\u30fc\u884c\u306f\u3001Web \u30d6\u30e9\u30a6\u30b6\u30fc\u304c\u4e00\u822c\u306b\u751f\u6210\u3059\u308b\u30d8\u30c3\u30c0\u30fc\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001OS \u3084\u305d\u306e\u307b\u304b\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u751f\u6210\u3057\u305f Web \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u9664\u5916\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001Web \u30d6\u30e9\u30a6\u30b6\u30fc\u304c\u751f\u6210\u3057\u305f\u5e73\u6587 HTTP \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3060\u3051\u306b\u96c6\u4e2d\u3067\u304d\u307e\u3059\u3002\u7d50\u679c\u3001\u5e73\u6587\u306e HTTP GET \u30ea\u30af\u30a8\u30b9\u30c8\u3092\u3044\u304f\u3064\u304b\u78ba\u8a8d\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306f\u4ee5\u4e0b\u306e\u56f3 8 \u306b\u793a\u3059\u3088\u3046\u306b <span style=\"font-family: 'courier new', courier, monospace;\"> outdoornebraska[.]gov<\/span> \u306b 80\/tcp \u7d4c\u7531\u3067\u63a5\u7d9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_130522\" aria-describedby=\"caption-attachment-130522\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130522 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-8.jpeg\" alt=\"\u753b\u50cf 8 \u306f Wireshark \u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u30c8\u30e9\u30d5\u30a3\u30c3\u30af \u30d5\u30a3\u30eb\u30bf\u30fc\u306f http.accept_language \u3067\u3059\u3002\u3053\u308c\u306f\u3001Web \u30d6\u30e9\u30a6\u30b6\u30fc\u3078\u306e\u5e73\u6587\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002 \" width=\"900\" height=\"615\" \/><figcaption id=\"caption-attachment-130522\" class=\"wp-caption-text\">\u56f38. 3 \u3064\u3081\u306e pcap \u3092\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u3066 Web \u30d6\u30e9\u30a6\u30b6\u30fc\u3078\u306e\u5e73\u6587\u306e HTTP \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u63a2\u3059<\/figcaption><\/figure>\n<p>\u56f3 9 \u3092\u53c2\u8003\u306b\u3001HTTP GET \u30ea\u30af\u30a8\u30b9\u30c8\u3092\u3069\u308c\u304b 1 \u3064\u9078\u3073\u3001<span style=\"font-family: 'courier new', courier, monospace;\">outdoornebraska[.]gov<\/span> \u306e TCP \u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u8ffd\u8de1\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><figure id=\"attachment_130524\" aria-describedby=\"caption-attachment-130524\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130524 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-9.jpeg\" alt=\"\u753b\u50cf 9 \u306f Wireshark \u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u30c8\u30e9\u30d5\u30a3\u30c3\u30af \u30d5\u30a3\u30eb\u30bf\u30fc\u306f http.accept_language \u3067\u3059\u30021 \u884c (\u6fc3\u3044\u9752) \u3092\u9078\u3093\u3067\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8 \u30e1\u30cb\u30e5\u30fc\u304b\u3089 [Follow (\u8ffd\u8de1)] \u3092\u30af\u30ea\u30c3\u30af\u3057\u3001 [TCP Stream (TCP \u30b9\u30c8\u30ea\u30fc\u30e0)] \u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002 \" width=\"900\" height=\"615\" \/><figcaption id=\"caption-attachment-130524\" class=\"wp-caption-text\">\u56f39. <span style=\"font-family: 'courier new', courier, monospace;\">outdoornebraska[.]gov<\/span> \u5b9b\u306e HTTP GET \u30ea\u30af\u30a8\u30b9\u30c8\u306e TCP \u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u8ffd\u8de1\u3059\u308b<\/figcaption><\/figure>\u3053\u306e TCP \u30b9\u30c8\u30ea\u30fc\u30e0\u306b\u306f\u3001\u56f3 10 \u306b\u793a\u3059 User-Agent \u884c\u3092\u542b\u3080 HTTP \u30ea\u30af\u30a8\u30b9\u30c8 \u30d8\u30c3\u30c0\u30fc\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e User-Agent \u884c\u306f\u30012023 \u5e74 3 \u6708 10 \u65e5\u306b Windows 11 \u30db\u30b9\u30c8\u304b\u3089 Microsoft Edge Web \u30d6\u30e9\u30a6\u30b6\u30fc\u306e\u30d0\u30fc\u30b8\u30e7\u30f3 110.0.1587.69 \u3067\u751f\u6210\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_130526\" aria-describedby=\"caption-attachment-130526\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130526 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-10.jpeg\" alt=\"\u753b\u50cf 10 \u306f\u3001Wireshark \u306e TCP \u30b9\u30c8\u30ea\u30fc\u30e0 \u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u9ed2\u3044\u56db\u89d2\u5f62\u3068\u77e2\u5370\u3067\u5f37\u8abf\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u306e\u306f\u3001User-Agent \u6587\u5b57\u5217\u3067\u3059\u3002 \" width=\"900\" height=\"497\" \/><figcaption id=\"caption-attachment-130526\" class=\"wp-caption-text\">\u56f310. Microsoft Edge \u304c\u751f\u6210\u3057\u305f User-Agent \u884c\u3092\u542b\u3080 TCP \u30b9\u30c8\u30ea\u30fc\u30e0<\/figcaption><\/figure>\n<p>\u56f3 10 \u5185\u306e User-Agent \u884c\u306b\u3042\u308b\u3001\u4ee5\u4e0b\u306e\u6587\u5b57\u5217\u306b\u6ce8\u76ee\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-family: 'courier new', courier, monospace;\">(Windows NT 10.0; Win64; x64)<\/span><\/p>\n<p>Windows NT 10.0 \u306f Windows 10 \u307e\u305f\u306f Windows 11 \u3092\u8868\u3057\u3066\u3044\u307e\u3059\u3002User-Agent \u884c\u306e <span style=\"font-family: 'courier new', courier, monospace;\">Windows NT<\/span> \u3068\u3044\u3046\u6587\u5b57\u5217\u306f\u3001\u4ee5\u4e0b\u306b\u793a\u3059\u30d0\u30fc\u30b8\u30e7\u30f3\u306e Microsoft Windows \u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<table style=\"width: 100%;\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\"><b>Windows NT \u30d0\u30fc\u30b8\u30e7\u30f3<\/b><\/td>\n<td style=\"text-align: center;\"><b>Windows OS \u30d0\u30fc\u30b8\u30e7\u30f3<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">Windows NT 5.1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Windows XP<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">Windows NT 6.0<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Windows Vista<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">Windows NT 6.1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Windows 7<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">Windows NT 6.2<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Windows 8<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">Windows NT 6.3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Windows 8.1<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">Windows NT 10.0<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Windows 10 \u307e\u305f\u306f Windows 11<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: center;\"><span style=\"font-size: 8pt; color: #999999;\"><i><span style=\"font-weight: 400;\">\u88681. \u300cWindows NT\u300d\u306e\u884c\u3068\u5bfe\u5fdc\u3059\u308b Microsoft Windows \u30d0\u30fc\u30b8\u30e7\u30f3<\/span><\/i><\/span><\/p>\n<p>\u306a\u305c\u8868 1 \u3067\u306f\u300c<span style=\"font-family: 'courier new', courier, monospace;\">Windows NT 10.0<\/span>\u300d\u304c\u300cWindows 10 \u307e\u305f\u306f Windows 11\u300d\u3092\u8868\u3059\u3068\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002<a href=\"https:\/\/blog.chromium.org\/2021\/09\/user-agent-reduction-origin-trial-and-dates.html\" target=\"_blank\" rel=\"noopener\">User-Agent \u884c\u306e\u60c5\u5831\u3092\u6e1b\u3089\u3059<\/a>\u53d6\u308a\u7d44\u307f\u306e\u4e00\u74b0\u3067\u3001Chrome \u3084 Edge\u3001Firefox \u306a\u3069\u306e Web \u30d6\u30e9\u30a6\u30b6\u30fc\u306e\u958b\u767a\u8005\u306f <span style=\"font-family: 'courier new', courier, monospace;\">Windows NT 10.0<\/span> \u306e User-Agent \u884c\u306b\u542b\u3081\u308b Windows \u30d0\u30fc\u30b8\u30e7\u30f3\u756a\u53f7\u3092\u56fa\u5b9a\u306b\u3057\u3066\u3044\u308b\u306e\u3067\u3059\u30022023 \u5e74\u4ee5\u964d\u3001Google Chrome \u30d6\u30e9\u30a6\u30b6\u30fc\u306e\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u3001User-Agent \u884c\u306e <a href=\"https:\/\/www.chromium.org\/updates\/ua-reduction\/#sample-ua-strings-final-reduced-state\" target=\"_blank\" rel=\"noopener\">Windows \u306e\u3042\u3089\u3086\u308b\u30d0\u30fc\u30b8\u30e7\u30f3\u3092 Windows NT 10.0 \u3068\u3057\u3066\u5831\u544a\u3059\u308b<\/a>\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u63aa\u7f6e\u306f Apple macOS \u306b\u95a2\u3057\u3066\u3082\u3068\u3089\u308c\u3066\u304a\u308a\u3001\u73fe\u884c\u30d0\u30fc\u30b8\u30e7\u30f3\u306e macOS \u3067 Web \u30d6\u30e9\u30a6\u30b6\u30fc\u304c\u751f\u6210\u3059\u308b HTTP \u30ea\u30af\u30a8\u30b9\u30c8 \u30d8\u30c3\u30c0\u30fc\u5185\u306e User-Agent \u884c\u306f\u3001<a href=\"https:\/\/bugs.chromium.org\/p\/chromium\/issues\/detail?id=1175225\" target=\"_blank\" rel=\"noopener\">macOS \u3092 Catalina (\u30d0\u30fc\u30b8\u30e7\u30f3 10.15.7) \u3068\u5831\u544a\u3059\u308b\u3088\u3046\u306b\u56fa\u5b9a<\/a>\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u524d\u8ff0\u306e\u3088\u3046\u306b\u30013 \u3064\u3081\u306e pcap \u306e\u5e73\u6587 HTTP \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u3001Microsoft Edge Web \u30d6\u30e9\u30a6\u30b6\u30fc \u30d0\u30fc\u30b8\u30e7\u30f3 110.0.1587.69 \u3092\u4f7f\u3063\u3066\u751f\u6210\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u4e0a\u306e\u56f3 9 \u3067\u78ba\u8a8d\u3057\u305f TCP \u30b9\u30c8\u30ea\u30fc\u30e0\u3067\u306f\u3001User-Agent \u884c\u306e\u6700\u5f8c\u306e\u6587\u5b57\u304c \u300c<span style=\"font-family: 'courier new', courier, monospace;\">Edg\/110.0.1587.69<\/span>\u300d\u306b\u306a\u3063\u3066\u3044\u307e\u3059 (\u56f3 11)\u3002Chromium \u30d9\u30fc\u30b9\u306e Microsoft Edge \u306e\u5834\u5408\u3001\u77ed\u7e2e\u3055\u308c\u305f\u6587\u5b57\u5217 <span style=\"font-family: 'courier new', courier, monospace;\">Edg<\/span> \u304c\u8b58\u5225\u5b50\u3068\u3057\u3066\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_130528\" aria-describedby=\"caption-attachment-130528\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130528 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-11.jpeg\" alt=\"\u753b\u50cf 11 \u306f\u3001Wireshark \u306e TCP \u30b9\u30c8\u30ea\u30fc\u30e0 \u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u9ed2\u3044\u56db\u89d2\u5f62\u3068\u77e2\u5370\u3067\u5f37\u8abf\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u306e\u306f\u3001User-Agent \u6587\u5b57\u5217\u3067\u3059\u3002\u6700\u5f8c\u306e\u6587\u5b57\u306f Web \u30d6\u30e9\u30a6\u30b6\u30fc \u3092 Edg\/110.0.1587.69 \u3068\u3057\u3066\u8b58\u5225\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u306f Microsoft Edge \u3067\u3059\u3002 \" width=\"900\" height=\"498\" \/><figcaption id=\"caption-attachment-130528\" class=\"wp-caption-text\">\u56f311. User-Agent \u884c\u3068\u305d\u306e\u6700\u5f8c\u306e\u6587\u5b57\u5217\u3092\u542b\u3080 TCP \u30b9\u30c8\u30ea\u30fc\u30e0\u304b\u3089 Web \u30d6\u30e9\u30a6\u30b6\u30fc\u3092\u8b58\u5225\u3059\u308b<\/figcaption><\/figure>\n<p>Google Chrome \u3084 Microsoft Edge \u306a\u3069\u306e Chromium \u30d9\u30fc\u30b9\u306e Web \u30d6\u30e9\u30a6\u30b6\u30fc\u304c\u751f\u6210\u3059\u308b User-Agent \u884c\u306b\u306f <span style=\"font-family: 'courier new', courier, monospace;\">Safari<\/span> \u3084 <span style=\"font-family: 'courier new', courier, monospace;\">AppleWebKit<\/span> \u3068\u3044\u3046\u6587\u5b57\u5217\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u304a\u305d\u3089\u304f\u3001Apple \u306e Safari Web \u30d6\u30e9\u30a6\u30b6\u30fc\u306b\u6700\u9069\u5316\u3055\u308c\u305f\u30da\u30fc\u30b8\u3092\u8868\u793a\u3059\u308b\u3055\u3044\u306e\u4e92\u63db\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u3068\u601d\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>Android \u30c7\u30d0\u30a4\u30b9\u304c\u751f\u6210\u3057\u305f\u5e73\u6587\u306e HTTP Web \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304b\u3089\u3082\u3001\u305d\u306e\u30c7\u30d0\u30a4\u30b9\u306e\u30d6\u30e9\u30f3\u30c9\u540d\u3084\u30e2\u30c7\u30eb\u3092\u78ba\u8a8d\u3067\u304d\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>4 \u3064\u3081\u306e pcap\u3001<span style=\"font-family: 'courier new', courier, monospace;\">Wireshark-tutorial-identifying-hosts-and-users-4-of-5.pcap<\/span> \u3092 Wireshark \u3067\u958b\u3044\u3066\u304f\u3060\u3055\u3044\u3002\u4ee5\u524d\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u4f5c\u6210\u3057\u305f\u300cbasic\u300dWeb \u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u9069\u7528\u3057\u3001<span style=\"font-family: 'courier new', courier, monospace;\">www.pcapworkshop[.]net<\/span> \u5b9b\u306e\u6700\u521d\u306e HTTP GET \u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9078\u629e\u3057\u3066\u304b\u3089\u3001TCP \u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u8ffd\u8de1\u3057\u307e\u3059 (\u56f3 12)\u3002<\/p>\n<p><figure id=\"attachment_130530\" aria-describedby=\"caption-attachment-130530\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130530 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-12.jpeg\" alt=\"\u753b\u50cf 12 \u306f Wireshark \u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u30d5\u30a3\u30eb\u30bf\u30fc\u306b\u306f \u300c(http.request or tls.handshael.type eq 1) and !(ssdp)\u300d\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u300cbasic\u300d\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u9078\u3073\u307e\u3059\u3002\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u5185\u306e\u884c\u306e 1 \u3064\u304c\u9078\u629e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30e1\u30cb\u30e5\u30fc\u304b\u3089[Follow (\u8ffd\u8de1)]\u3001[TCP Stream (TCP \u30b9\u30c8\u30ea\u30fc\u30e0] \u306e\u9806\u306b\u9078\u3073\u307e\u3059\u3002 \" width=\"900\" height=\"730\" \/><figcaption id=\"caption-attachment-130530\" class=\"wp-caption-text\">\u56f312. Wireshark \u3067 4 \u3064\u3081\u306e pcap \u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u3066 TCP \u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u8ffd\u8de1<\/figcaption><\/figure>\u3053\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306f Google Pixel Android \u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3067\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u3082\u306e\u3067\u3001<span style=\"font-family: 'courier new', courier, monospace;\">www.pcapworkshop[.]net<\/span> \u5b9b\u306e Web \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f Android \u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3084\u30bf\u30d6\u30ec\u30c3\u30c8\u5411\u3051\u306e Google Chrome \u30d6\u30e9\u30a6\u30b6\u30fc\u3092\u4f7f\u3063\u3066\u751f\u6210\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u3053\u306e Web \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e TCP \u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u4ee5\u4e0b\u306e\u56f3 13 \u306b\u793a\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u3068\u30d6\u30e9\u30a6\u30b6\u30fc\u3092\u8b58\u5225\u3059\u308b User-Agent \u884c\u3092\u5f37\u8abf\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_130532\" aria-describedby=\"caption-attachment-130532\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130532 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-13.jpeg\" alt=\"\u753b\u50cf 13 \u306f\u3001Wireshark TCP \u30b9\u30c8\u30ea\u30fc\u30e0 \u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u9ed2\u3044\u56db\u89d2\u5f62\u3068\u77e2\u5370\u3067\u5f37\u8abf\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u306e\u306f\u3001User-Agent \u6587\u5b57\u5217\u3067\u3059\u3002\u6587\u5b57\u5217\u304b\u3089\u8b58\u5225\u3055\u308c\u305f\u306e\u306f Linux; Android 13; Pixel 4a (5G) \u3067\u3059\u3002\" width=\"900\" height=\"517\" \/><figcaption id=\"caption-attachment-130532\" class=\"wp-caption-text\">\u56f313. User-Agent \u884c\u3092\u542b\u3080 TCP \u30b9\u30c8\u30ea\u30fc\u30e0\u3002Google Pixel \u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3067\u5b9f\u884c\u4e2d\u306e Chrome \u304c\u751f\u6210\u3057\u305f\u3082\u306e<\/figcaption><\/figure>\n<p>2023 \u5e74 5 \u6708 14 \u65e5\u306b\u53ce\u96c6\u3055\u308c\u305f\u3053\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3067\u306f\u3001User-Agent \u884c\u306b <span style=\"font-family: 'courier new', courier, monospace;\">(Linux; Android 13; Pixel 4a (5G))<\/span> \u3068\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u306a\u304a Chrome \u306e\u73fe\u884c\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u540c\u4e00\u306e\u30c7\u30d0\u30a4\u30b9\u3092 <span style=\"font-family: 'courier new', courier, monospace;\">(Linux; Android 10; K)<\/span> \u3068\u5831\u544a\u3057\u307e\u3059\u3002\u3053\u308c\u306f Google \u306b\u3088\u308b<a href=\"https:\/\/www.chromium.org\/updates\/ua-reduction\/#sample-ua-strings-final-reduced-state\" target=\"_blank\" rel=\"noopener\">User-Agent \u884c\u306e\u60c5\u5831\u524a\u6e1b<\/a>\u52aa\u529b\u306b\u3088\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u306a\u304a\u3053\u306e User-Agent \u884c\u306e\u524a\u6e1b\u306f Chrome \u307e\u305f\u306f Chromium \u30d9\u30fc\u30b9\u306e\u30d6\u30e9\u30a6\u30b6\u3092\u5b9f\u884c\u3057\u3066\u3044\u308b Android \u30c7\u30d0\u30a4\u30b9\u306b\u306f\u5f53\u3066\u306f\u307e\u3063\u3066\u3044\u307e\u305f\u304c\u3001Apple \u88fd\u306e\u30e2\u30d0\u30a4\u30eb \u30c7\u30d0\u30a4\u30b9\u3067 Safari \u30d6\u30e9\u30a6\u30b6\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u306f\u78ba\u8a8d\u3055\u308c\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n<p>5 \u3064\u3081\u306e pcap\u3001<span style=\"font-family: 'courier new', courier, monospace;\">Wireshark-tutorial-identifying-hosts-and-users-5-of-5.pcap<\/span> \u3092 Wireshark \u3067\u958b\u3044\u3066\u304f\u3060\u3055\u3044\u3002\u300cbasic\u300d\u306e Web \u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u9069\u7528\u3057\u3066\u304b\u3089 <span style=\"font-family: 'courier new', courier, monospace;\">www.pcapworkshop[.]net<\/span> \u5b9b\u306e\u6700\u521d\u306e HTTP GET \u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u306e\u5f8c\u3001\u56f3 14 \u306b\u793a\u3057\u305f\u3088\u3046\u306b TCP \u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u8ffd\u8de1\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><figure id=\"attachment_130534\" aria-describedby=\"caption-attachment-130534\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130534 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-14.jpeg\" alt=\"\u753b\u50cf 14 \u306f Wireshark \u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u30d5\u30a3\u30eb\u30bf\u30fc\u306b\u306f \u300c(hhtp.request or tls.handshael.type eq 1) and !(ssdp)\u300d\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u300cbasic\u300d\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u9078\u3073\u307e\u3059\u3002\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u5185\u306e pcapworkshop[.]net \u306e\u884c\u306e\u304c\u9078\u629e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30e1\u30cb\u30e5\u30fc\u304b\u3089[Follow (\u8ffd\u8de1)]\u3001[TCP Stream (TCP \u30b9\u30c8\u30ea\u30fc\u30e0] \u306e\u9806\u306b\u9078\u3073\u307e\u3059\u3002\" width=\"900\" height=\"583\" \/><figcaption id=\"caption-attachment-130534\" class=\"wp-caption-text\">\u56f314. Wireshark \u3067 5 \u3064\u3081\u306e pcap \u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u3066 TCP \u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u8ffd\u8de1<\/figcaption><\/figure>\u3053\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306f iOS 16.4.1 \u3092\u5b9f\u884c\u3057\u3066\u3044\u308b Apple iPhone \u3067\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u305f\u3082\u306e\u3067\u3001<span style=\"font-family: 'courier new', courier, monospace;\">www.pcapworkshop[.]net<\/span> \u5b9b\u306e Web \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f Apple \u306e Safari \u30e2\u30d0\u30a4\u30eb Web \u30d6\u30e9\u30a6\u30b6\u30fc\u3092\u4f7f\u3063\u3066 2023 \u5e74 4 \u6708 10 \u65e5\u306b\u751f\u6210\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u3053\u306e Web \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e TCP \u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u4ee5\u4e0b\u306e\u56f3 15 \u306b\u793a\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u3068 OS \u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u8b58\u5225\u3059\u308b User-Agent \u884c\u3092\u5f37\u8abf\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_130536\" aria-describedby=\"caption-attachment-130536\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130536 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-15.jpeg\" alt=\"\u753b\u50cf 15 \u306f\u3001Wireshark TCP \u30b9\u30c8\u30ea\u30fc\u30e0 \u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u9ed2\u3044\u56db\u89d2\u5f62\u3068\u77e2\u5370\u3067\u5f37\u8abf\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u306e\u306f\u3001User-Agent \u6587\u5b57\u5217\u3067\u3059\u3002\u6587\u5b57\u5217\u5185\u3067\u300ciPhone; CPU iPhone OS 16_4_1 like Mac OS X\u300d\u3068\u8b58\u5225\u3055\u308c\u3066\u3044\u307e\u3059\u3002\" width=\"900\" height=\"494\" \/><figcaption id=\"caption-attachment-130536\" class=\"wp-caption-text\">\u56f315. User-Agent \u884c\u3092\u542b\u3080 TCP \u30b9\u30c8\u30ea\u30fc\u30e0\u3002iPhone \u4e0a\u3067\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b Safari \u304c\u751f\u6210\u3057\u305f\u3082\u306e<\/figcaption><\/figure>\n<p>\u3044\u307e\u306f HTTPS \u3092\u4f7f\u3046 Web \u30b5\u30a4\u30c8\u304c\u5897\u3048\u3066\u3044\u307e\u3059\u304c\u3001HTTPS \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u3066 HTTP \u30d8\u30c3\u30c0\u30fc\u3084\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u898b\u3048\u306a\u3044\u3053\u3068\u304b\u3089\u3001\u3053\u306e\u65b9\u6cd5\u3067\u30db\u30b9\u30c8\u3092\u8b58\u5225\u3059\u308b\u306e\u306f\u96e3\u3057\u304f\u306a\u3063\u3066\u304d\u3066\u3044\u307e\u3059\u3002\u3067\u3059\u304c\u3001\u8abf\u67fb\u4e2d\u306b\u5e73\u6587 HTTP \u306e Web \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u898b\u3064\u304b\u3063\u305f\u5834\u5408\u306f\u3001\u3053\u306e\u65b9\u6cd5\u3067\u30db\u30b9\u30c8\u8b58\u5225\u306e\u305f\u3081\u306e\u8a73\u7d30\u60c5\u5831\u3092\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-99589-_wea2h27o5hoo\"><\/a>Active Directory (AD) \u74b0\u5883\u3067\u306e\u30e6\u30fc\u30b6\u30fc\u306e\u8b58\u5225<\/h2>\n<p>\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u306e\u89e3\u6c7a\u3067\u6700\u3082\u91cd\u8981\u306a\u60c5\u5831\u306f\u304a\u305d\u3089\u304f\u611f\u67d3\u30db\u30b9\u30c8\u306b\u7d10\u3065\u304f\u30e6\u30fc\u30b6\u30fc\u306e\u7279\u5b9a\u3067\u3057\u3087\u3046\u3002Active Directory (AD) \u74b0\u5883\u306e Windows \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u5834\u5408\u3001<a href=\"https:\/\/learn.microsoft.com\/ja-jp\/windows-server\/security\/kerberos\/kerberos-authentication-overview\" target=\"_blank\" rel=\"noopener\">Kerberos<\/a> \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304b\u3089\u30e6\u30fc\u30b6\u30fc \u30a2\u30ab\u30a6\u30f3\u30c8\u540d\u3092\u898b\u3064\u3051\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>3 \u3064\u3081\u306e pcap\u3001<span style=\"font-family: 'courier new', courier, monospace;\">Wireshark-tutorial-filter-expressions-3-of-5.pcap<\/span> \u306b\u623b\u3063\u3066 Wireshark \u3067\u958b\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u3053\u306e pcap \u306f\u3001\u6b21\u306e Active Directory \u74b0\u5883\u306b\u3042\u308b Windows \u30db\u30b9\u30c8\u304b\u3089\u306e\u3082\u306e\u3067\u3059\u3002<\/p>\n<ul>\n<li>\u30c9\u30e1\u30a4\u30f3: <span style=\"font-family: 'courier new', courier, monospace;\">www.pcapworkshop[.]net<\/span><\/li>\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30bb\u30b0\u30e1\u30f3\u30c8: <span style=\"font-family: 'courier new', courier, monospace;\">172.16.1[.]0\/24 (172.16.1[.]0 - 172.16.1[.]255)<\/span><\/li>\n<li>\u30e1\u30a4\u30f3 \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306e IP \u30a2\u30c9\u30ec\u30b9: <span style=\"font-family: 'courier new', courier, monospace;\">172.16.1[.]16<\/span><\/li>\n<li>\u30e1\u30a4\u30f3 \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306e\u30db\u30b9\u30c8\u540d: <span style=\"font-family: 'courier new', courier, monospace;\">PCAPWORKSHOP-DC<\/span><\/li>\n<li>\u30bb\u30b0\u30e1\u30f3\u30c8 \u30b2\u30fc\u30c8\u30a6\u30a7\u30a4: <span style=\"font-family: 'courier new', courier, monospace;\">172.16.1[.]1<\/span><\/li>\n<li>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8 \u30a2\u30c9\u30ec\u30b9: <span style=\"font-family: 'courier new', courier, monospace;\">172.16.1[.]255<\/span><\/li>\n<li>Windows \u30af\u30e9\u30a4\u30a2\u30f3\u30c8: <span style=\"font-family: 'courier new', courier, monospace;\">172.16.1[.]141<\/span><\/li>\n<\/ul>\n<p>\u3053\u308c\u306f IPv4 \u3068 IPv6 \u306e\u4e21\u65b9\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u74b0\u5883\u3067\u3059\u304c\u3001Kerberos \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f IPv4 \u306e\u307f\u3067\u3059\u3002<\/p>\n<p>Wireshark \u3067\u3053\u306e pcap \u3092\u958b\u3044\u305f\u3089\u3001[\u8868\u793a\u30d5\u30a3\u30eb\u30bf] \u30c4\u30fc\u30eb\u30d0\u30fc\u306b\u300c<span style=\"font-family: 'courier new', courier, monospace;\">kerberos.CNameString<\/span>\u300d\u3068\u5165\u529b\u3057\u3066\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u307e\u3059\u3002\u6700\u521d\u306e\u30d5\u30ec\u30fc\u30e0\u3092\u9078\u629e\u3057\u307e\u3059\u3002\u56f3 16 \u306b\u793a\u3059\u3088\u3046\u306b\u3001\u30d1\u30b1\u30c3\u30c8\u8a73\u7d30\u90e8\u306b\u79fb\u52d5\u3057\u3066\u5404\u884c\u3092\u5c55\u958b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<span style=\"font-family: 'courier new', courier, monospace;\">CNameString: desktop-hsjd5r8$<\/span> \u306e\u6587\u5b57\u3092\u542b\u3080\u884c\u3092\u9078\u629e\u3057\u305f\u72b6\u614b\u3067 [Apply it as Column (\u5217\u3068\u3057\u3066\u9069\u7528)] \u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n<p><figure id=\"attachment_130538\" aria-describedby=\"caption-attachment-130538\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130538 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-16.jpeg\" alt=\"\u753b\u50cf 16 \u306f Wireshark \u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u30d5\u30a3\u30eb\u30bf\u30fc\u306f kerberos.CNameString \u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30d1\u30b1\u30c3\u30c8\u8a73\u7d30\u90e8\u3067\u306f\u3001Kerberos \u304c\u4ed6\u306e\u60c5\u5831\u3068\u3068\u3082\u306b\u9ed2\u3044\u77e2\u5370\u3067\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002CNameString \u3092\u9078\u629e\u3057\u3001[Apply it as Column (\u5217\u3068\u3057\u3066\u9069\u7528)] \u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u3044\u307e\u3059\u3002\" width=\"900\" height=\"750\" \/><figcaption id=\"caption-attachment-130538\" class=\"wp-caption-text\">\u56f316. CNameString \u306e\u5024\u3092\u898b\u3064\u3051\u3066\u305d\u308c\u3092\u5217\u3068\u3057\u3066\u9069\u7528\u3057\u305f\u3068\u3053\u308d<\/figcaption><\/figure>\u3053\u308c\u306b\u3088\u308a\u3001\u300cCNameString\u300d\u3068\u3044\u3046\u540d\u524d\u306e\u65b0\u3057\u3044\u5217\u304c\u4f5c\u6210\u3055\u308c\u307e\u3059\u3002\u5217\u3092\u4f5c\u6210\u3057\u305f\u5f8c\u3001\u30d1\u30b1\u30c3\u30c8\u4e00\u89a7\u90e8\u3067\u6700\u5f8c\u306e\u30d5\u30ec\u30fc\u30e0\u307e\u3067\u4e0b\u65b9\u5411\u306b\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u307e\u3059\u3002\u3059\u308b\u3068\u3001<span style=\"font-family: 'courier new', courier, monospace;\">172.16.1[.]16<\/span> \u3067\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u30c9\u30e1\u30a4\u30f3 \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3068 <span style=\"font-family: 'courier new', courier, monospace;\">172.16.1[.]141<\/span> \u3067\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b Windows \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304b\u3089\u3001CNameString \u306e\u5217\u306b\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u540d\u300c<span style=\"font-family: 'courier new', courier, monospace;\">rene.mccollum<\/span>\u300d\u304c\u898b\u3064\u304b\u308b\u306f\u305a\u3067\u3059 (\u56f3 17)\u3002<\/p>\n<figure id=\"attachment_130540\" aria-describedby=\"caption-attachment-130540\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130540 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-17.jpeg\" alt=\"\u753b\u50cf 17 \u306f Wireshark \u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u30d5\u30a3\u30eb\u30bf\u30fc\u306f kerberos.CNameString \u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u65b0\u3057\u3044\u5217 CNameString \u304c\u9ed2\u3044\u56db\u89d2\u5f62\u3067\u5f37\u8abf\u8868\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\" width=\"900\" height=\"510\" \/><figcaption id=\"caption-attachment-130540\" class=\"wp-caption-text\">\u56f317. \u65b0\u3057\u304f\u4f5c\u6210\u3057\u305f CNameString \u5217\u3067 Windows \u30e6\u30fc\u30b6\u30fc \u30a2\u30ab\u30a6\u30f3\u30c8\u540d\u3092\u898b\u3064\u3051\u305f\u3068\u3053\u308d<\/figcaption><\/figure>\n<p>Kerberos \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u307b\u304b\u3001Lightweight Directory Access Protocol (LDAP) \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3067\u3082\u30e6\u30fc\u30b6\u30fc\u306e\u59d3\u540d\u306a\u3069\u306e\u8b58\u5225\u5b50\u304c\u898b\u3064\u304b\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u6b21\u306eWireshark\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-family: 'courier new', courier, monospace;\">ldap contains \"CN=Users\"<\/span><\/p>\n<p>\u3053\u308c\u306b\u3088\u308a [Info] \u5217\u306b\u300c<span style=\"font-family: 'courier new', courier, monospace;\">\"CN=Rene McCollum<\/span>\u300d\u3068\u3044\u3046\u6587\u5b57\u5217\u304c\u8868\u793a\u3055\u308c\u308b\u306f\u305a\u3067\u3059 (\u56f3 18)\u3002<\/p>\n<figure id=\"attachment_130542\" aria-describedby=\"caption-attachment-130542\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130542 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-18.jpeg\" alt=\"\u753b\u50cf 18 \u306f Wireshark \u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u30d5\u30a3\u30eb\u30bf\u30fc\u306f\u300cldap contains &quot;CN=Users&quot;\u300d\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d5\u30a3\u30eb\u30bf\u30fc\u3055\u308c\u305f\u30e6\u30fc\u30b6\u30fc\u306f\u9ed2\u3044\u56db\u89d2\u5f62\u5185\u3067\u5f37\u8abf\u8868\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002 \" width=\"900\" height=\"332\" \/><figcaption id=\"caption-attachment-130542\" class=\"wp-caption-text\">\u56f318. LDAP \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u5185\u3067\u59d3\u540d\u3092\u691c\u7d22\u3057\u305f\u3068\u3053\u308d<\/figcaption><\/figure>\n<h2><a id=\"post-99589-_qj56v364kjd5\"><\/a>\u30c7\u30d5\u30a9\u30eb\u30c8\u306e Windows \u30db\u30b9\u30c8\u540d<\/h2>\n<p>Windows 10 \u3068 Windows 11 \u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u306e\u30c7\u30d5\u30a9\u30eb\u30c8 \u30db\u30b9\u30c8\u540d\u306f\u3001<span style=\"font-family: 'courier new', courier, monospace;\">DESKTOP-<\/span>\u3067\u59cb\u307e\u3063\u3066\u30e9\u30f3\u30c0\u30e0\u306a 7 \u6587\u5b57\u306e\u82f1\u6570\u5b57\u3067\u7d42\u308f\u308b 15 \u6587\u5b57\u306e\u6587\u5b57\u5217\u3067\u3059\u3002<\/p>\n<p>3 \u3064\u3081\u306e pcap \u3067 Wireshark \u30d5\u30a3\u30eb\u30bf\u30fc\u300c<span style=\"font-family: 'courier new', courier, monospace;\">ip contains \"DESKTOP-\"<\/span>\u300d\u3092\u4f7f\u3063\u3066\u3053\u306e\u8b58\u5225\u5b50\u3092\u691c\u7d22\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u306e\u30d5\u30a3\u30eb\u30bf\u30fc\u306f\u3001\u5e73\u6587\u306e ASCII \u6587\u5b57\u5217\u300c<span style=\"font-family: 'courier new', courier, monospace;\">DESKTOP-<\/span>\u300d\u3092 IP \u30ec\u30a4\u30e4\u30fc\u307e\u305f\u306f\u305d\u308c\u4ee5\u4e0a\u306e\u30ec\u30a4\u30e4\u30fc\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304b\u3089\u691c\u7d22\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3053\u306e\u691c\u7d22\u306f\u3001\u3053\u306e\u6587\u5b57\u5217\u304c <a href=\"https:\/\/ja.wikipedia.org\/wiki\/Server_Message_Block\" target=\"_blank\" rel=\"noopener\">SMB<\/a> \u3084 Kerberos \u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306a\u3069\u306e TCP \u3092\u4f7f\u3046\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u5834\u5408\u3084\u3001DNS \u3084 DHCP \u306a\u3069\u306e UDP \u3092\u4f7f\u3046\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u5834\u5408\u306b\u898b\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u9069\u7528\u3057\u305f\u3089\u3001\u56f3 19 \u306b\u793a\u3059\u3088\u3046\u306b [Info] \u5217\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<figure id=\"attachment_130544\" aria-describedby=\"caption-attachment-130544\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130544 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-19.jpeg\" alt=\"\u753b\u50cf 19 \u306f\u3001\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u300cip contains &quot;DESKTOP-&quot;\u300d\u306b\u8a2d\u5b9a\u3057\u305f Wireshark \u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u9ed2\u3044\u77e2\u5370\u306f\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u4e2d\u3067\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u304c\u898b\u3064\u304b\u308b\u884c\u3092\u5f37\u8abf\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002\" width=\"900\" height=\"605\" \/><figcaption id=\"caption-attachment-130544\" class=\"wp-caption-text\">\u56f319. Windows 10 \u307e\u305f\u306f Windows 11 \u306e\u30c7\u30d5\u30a9\u30eb\u30c8 \u30db\u30b9\u30c8\u540d\u3092\u691c\u7d22\u3059\u308b<\/figcaption><\/figure>\n<p>\u3053\u306e\u691c\u7d22\u3067\u306f\u5927\u6587\u5b57\u3068\u5c0f\u6587\u5b57\u304c\u533a\u5225\u3055\u308c\u3001\u3053\u306e\u8b58\u5225\u5b50\u3082 pcap \u3067\u306f\u5c0f\u6587\u5b57\u306e\u6587\u5b57\u5217\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><span style=\"font-family: 'courier new', courier, monospace;\">DESKTOP-<\/span> \u3068\u3044\u3046\u6587\u5b57\u5217\u3092\u898b\u3064\u3051\u308b\u3055\u3089\u306b\u3088\u3044\u65b9\u6cd5\u306f\u3001Wireshark \u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u30af\u30ea\u30a2\u3057\u3001Wireshark \u306e [Edit (\u7de8\u96c6)] \u30e1\u30cb\u30e5\u30fc\u306b\u3042\u308b [Find Packet (\u30d1\u30b1\u30c3\u30c8\u306e\u691c\u7d22)] \u6a5f\u80fd\u3092\u4f7f\u3046\u65b9\u6cd5\u3067\u3059 (\u56f3 20)\u3002<\/p>\n<p><figure id=\"attachment_130546\" aria-describedby=\"caption-attachment-130546\" style=\"width: 803px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130546 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-2-ja.png\" alt=\"\u753b\u50cf 20 \u306f\u3001Wireshark \u306e [Edit (\u7de8\u96c6)] \u30e1\u30cb\u30e5\u30fc\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002[Find Packet (\u30d1\u30b1\u30c3\u30c8\u306e\u691c\u7d22)] \u304c\u9078\u629e\u3055\u308c\u3066\u3044\u307e\u3059\u3002 \" width=\"803\" height=\"220\" \/><figcaption id=\"caption-attachment-130546\" class=\"wp-caption-text\">\u56f3 20. Wireshark \u306e [Find Packet (\u30d1\u30b1\u30c3\u30c8\u306e\u691c\u7d22)] \u6a5f\u80fd\u3092\u4f7f\u3046<\/figcaption><\/figure>\u3053\u308c\u306b\u3088\u308a\u3001[\u8868\u793a\u30d5\u30a3\u30eb\u30bf] \u30c4\u30fc\u30eb\u30d0\u30fc\u306e\u3059\u3050\u4e0b\u306b Wireshark \u306e\u691c\u7d22\u30d1\u30cd\u30eb\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u691c\u7d22\u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u3057\u3066\u300cPacket Details (\u30d1\u30b1\u30c3\u30c8\u8a73\u7d30)\u300d\u3068\u300cString (\u6587\u5b57\u5217)\u300d\u3092\u691c\u7d22\u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u3057\u3066\u9078\u629e\u3057\u3001\u300c<span style=\"font-family: 'courier new', courier, monospace;\">desktop-<\/span>\u300d\u3092\u691c\u7d22\u6587\u5b57\u5217\u3068\u3057\u3066\u5165\u529b\u3057\u307e\u3059\u3002\u305d\u306e\u4f8b\u306f\u56f3 21 \u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><figure id=\"attachment_130548\" aria-describedby=\"caption-attachment-130548\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-130548 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2023\/10\/word-image-130507-2-ja.png\" alt=\"\u753b\u50cf 21 \u306f\u3001\u30d1\u30b1\u30c3\u30c8\u306e\u8a73\u7d30\u3092\u793a\u3059 Wireshark \u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u8d64\u3044\u77e2\u5370\u304c 2 \u3064\u3001\u305d\u308c\u305e\u308c [Packet details (\u30d1\u30b1\u30c3\u30c8\u8a73\u7d30)] \u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3 \u30e1\u30cb\u30e5\u30fc\u3068 [String (\u6587\u5b57\u5217)] \u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3 \u30e1\u30cb\u30e5\u30fc\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u9ed2\u3044\u77e2\u5370\u306f [Find (\u691c\u7d22)] \u30dc\u30bf\u30f3\u3092\u6307\u3057\u3066\u3044\u307e\u3059\u3002\u691c\u7d22\u30d1\u30cd\u30eb\u3067\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u6587\u5b57\u5217\u306f\u300cdesktop-\u300d\u3067\u3059\u3002\u30d1\u30b1\u30c3\u30c8\u8a73\u7d30\u90e8\u3067\u306f\u3001\u8d64\u3044\u77e2\u5370\u304c [Queries (\u30af\u30a8\u30ea)] \u4ee5\u4e0b\u306e\u884c\u3092\u6307\u3057\u3066\u3044\u3066\u3001\u3053\u306e\u884c\u306b\u300cDESKTOP\u300d\u3092\u542b\u3080\u884c\u304c\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002 \" width=\"900\" height=\"889\" \/><figcaption id=\"caption-attachment-130548\" class=\"wp-caption-text\">\u56f321. \u300c<span style=\"font-family: 'courier new', courier, monospace;\">desktop-<\/span>\u300d\u3068\u3044\u3046\u6587\u5b57\u5217\u3092\u30d1\u30b1\u30c3\u30c8\u8a73\u7d30\u90e8\u304b\u3089\u898b\u3064\u3051\u308b<\/figcaption><\/figure>\u691c\u7d22\u30d1\u30cd\u30eb\u306e [Find (\u691c\u7d22)] \u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3064\u3069\u3001\u56f3 21 \u306b\u793a\u3057\u305f\u3088\u3046\u306b\u3001\u30d1\u30b1\u30c3\u30c8\u8a73\u7d30\u90e8\u3067\u305d\u306e\u6587\u5b57\u5217\u304c\u30cf\u30a4\u30e9\u30a4\u30c8\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-99589-_2an8ryq91inv\"><\/a>\u7d50\u8ad6<\/h2>\n<p>\u611f\u67d3\u30db\u30b9\u30c8\u306e\u8abf\u67fb\u306b\u304a\u3044\u3066\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304b\u3089\u30db\u30b9\u30c8\u3068\u30e6\u30fc\u30b6\u30fc\u3092\u6b63\u3057\u304f\u8b58\u5225\u3059\u308b\u3053\u3068\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u672c\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u306e\u65b9\u6cd5\u3092\u4f7f\u3048\u3070\u3001Wireshark \u3092\u6d3b\u7528\u3057\u3066\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30db\u30b9\u30c8\u3084\u30e6\u30fc\u30b6\u30fc\u3092\u7279\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u672c\u30b7\u30ea\u30fc\u30ba\u306e<a href=\"https:\/\/unit42.paloaltonetworks.jp\/using-wireshark-exporting-objects-from-a-pcap\/\" target=\"_blank\" rel=\"noopener\">\u6b21\u56de\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb<\/a>\u3067\u306f\u3001pcap \u304b\u3089\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3059\u308b\u65b9\u6cd5\u3092\u53d6\u308a\u4e0a\u3052\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-99589-_570cbe1pdhwx\"><\/a>\u8ffd\u52a0\u30ea\u30bd\u30fc\u30b9<\/h2>\n<ul>\n<li><a href=\"https:\/\/unit42.paloaltonetworks.jp\/unit42-customizing-wireshark-changing-column-display\/\" target=\"_blank\" rel=\"noopener\">Wireshark \u306b\u3088\u308b\u30d1\u30b1\u30c3\u30c8\u89e3\u6790\u8b1b\u5ea7 1: Wireshark\u306e\u8868\u793a\u5217\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3059\u308b<\/a> \u2013 \u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9 Unit 42<\/li>\n<li><a href=\"https:\/\/unit42.paloaltonetworks.jp\/using-wireshark-display-filter-expressions\/\" target=\"_blank\" rel=\"noopener\">Wireshark \u306b\u3088\u308b\u30d1\u30b1\u30c3\u30c8\u89e3\u6790\u8b1b\u5ea7 2: \u8105\u5a01\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30b9\u8abf\u67fb\u306b\u5f79\u7acb\u3064\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u8a2d\u5b9a<\/a> \u2013 \u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9 Unit 42<\/li>\n<li><a href=\"https:\/\/unit42.paloaltonetworks.jp\/using-wireshark-exporting-objects-from-a-pcap\/\" target=\"_blank\" rel=\"noopener\">Wireshark \u306b\u3088\u308b\u30d1\u30b1\u30c3\u30c8\u89e3\u6790\u8b1b\u5ea7 4: Pcap\u304b\u3089\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30a8\u30af\u30b9\u30dd\u30fc\u30c8<\/a> \u2013 \u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9 Unit 42<\/li>\n<li><a href=\"https:\/\/unit42.paloaltonetworks.jp\/wireshark-tutorial-decrypting-https-traffic\/\" target=\"_blank\" rel=\"noopener\">Wireshark \u306b\u3088\u308b\u30d1\u30b1\u30c3\u30c8\u89e3\u6790\u8b1b\u5ea7 8\uff1aHTTPS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u5fa9\u53f7<\/a> \u2013 \u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9 Unit 42<\/li>\n<li><a href=\"https:\/\/unit42.paloaltonetworks.jp\/wireshark-workshop-videos\/\" target=\"_blank\" rel=\"noopener\">Wireshark \u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb: Wireshark \u30ef\u30fc\u30af\u30b7\u30e7\u30c3\u30d7\u30d3\u30c7\u30aa\u30b7\u30ea\u30fc\u30ba\u3092\u516c\u958b<\/a> \u2013 \u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9 Unit 42<\/li>\n<li><a href=\"https:\/\/unit42.paloaltonetworks.jp\/tag\/wireshark-tutorial-ja\/\" target=\"_blank\" rel=\"noopener\">Wireshark \u306b\u3088\u308b\u30d1\u30b1\u30c3\u30c8\u89e3\u6790\u8b1b\u5ea7\u304a\u3088\u3073 WireShark \u30af\u30a4\u30ba\u306e\u5168\u30ea\u30b9\u30c8<\/a> \u2013 \u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9 Unit 42<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>When a host is infected or otherwise compromised, security professionals need to quickly review packet captures of suspicious network traffic to identify affected hosts and users. This tutorial offers tips on how to gather pcap data using Wireshark, the widely used network protocol analysis tool.<\/p>\n","protected":false},"author":35,"featured_media":134398,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[4438,4435],"tags":[4613,4615,4617],"product_categories":[],"coauthors":[485],"class_list":["post-99589","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cybersecurity-tutorials-ja","category-learning-hub-ja","tag-pcap-ja","tag-wireshark-ja","tag-wireshark-tutorial-ja"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.0 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Wireshark \u306b\u3088\u308b\u30d1\u30b1\u30c3\u30c8\u89e3\u6790\u8b1b\u5ea7 3: \u30db\u30b9\u30c8\u3068\u30e6\u30fc\u30b6\u30fc\u3092\u7279\u5b9a\u3059\u308b (2023-10-11 \u66f4\u65b0)<\/title>\n<meta name=\"description\" content=\"Wireshark\u306b\u3088\u308b\u30d1\u30b1\u30c3\u30c8\u89e3\u6790\u8b1b\u5ea7\u7b2c3\u56de\u306f\u3001\u611f\u67d3\u30db\u30b9\u30c8\u304b\u3089\u5f97\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\uff08pcaps\uff09\u3092\u624b\u65e9\u304f\u78ba\u8a8d\u3057\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30db\u30b9\u30c8\u3084\u30e6\u30fc\u30b6\u30fc\u3092\u7279\u5b9a\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3001\u8105\u5a01\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30b9\u30ea\u30b5\u30fc\u30c1\u90e8\u9580Unit42\u306eBrad Duncan\u304c\u89e3\u8aac\u3057\u307e\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/unit42.paloaltonetworks.com\/ja\/using-wireshark-identifying-hosts-and-users\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Wireshark \u306b\u3088\u308b\u30d1\u30b1\u30c3\u30c8\u89e3\u6790\u8b1b\u5ea7 3: \u30db\u30b9\u30c8\u3068\u30e6\u30fc\u30b6\u30fc\u3068\u7279\u5b9a\u3059\u308b\" \/>\n<meta property=\"og:description\" content=\"Wireshark\u306b\u3088\u308b\u30d1\u30b1\u30c3\u30c8\u89e3\u6790\u8b1b\u5ea7\u7b2c3\u56de\u306f\u3001\u611f\u67d3\u30db\u30b9\u30c8\u304b\u3089\u5f97\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\uff08pcaps\uff09\u3092\u624b\u65e9\u304f\u78ba\u8a8d\u3057\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30db\u30b9\u30c8\u3084\u30e6\u30fc\u30b6\u30fc\u3092\u7279\u5b9a\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3001\u8105\u5a01\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30b9\u30ea\u30b5\u30fc\u30c1\u90e8\u9580Unit42\u306eBrad 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\u30db\u30b9\u30c8\u3068\u30e6\u30fc\u30b6\u30fc\u3068\u7279\u5b9a\u3059\u308b\" \/>\n<meta name=\"twitter:description\" content=\"Wireshark\u306b\u3088\u308b\u30d1\u30b1\u30c3\u30c8\u89e3\u6790\u8b1b\u5ea7\u7b2c3\u56de\u306f\u3001\u611f\u67d3\u30db\u30b9\u30c8\u304b\u3089\u5f97\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\uff08pcaps\uff09\u3092\u624b\u65e9\u304f\u78ba\u8a8d\u3057\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30db\u30b9\u30c8\u3084\u30e6\u30fc\u30b6\u30fc\u3092\u7279\u5b9a\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3001\u8105\u5a01\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30b9\u30ea\u30b5\u30fc\u30c1\u90e8\u9580Unit42\u306eBrad Duncan\u304c\u89e3\u8aac\u3057\u307e\u3059\u3002\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Wireshark \u306b\u3088\u308b\u30d1\u30b1\u30c3\u30c8\u89e3\u6790\u8b1b\u5ea7 3: 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