{"id":138569,"date":"2021-07-20T00:33:34","date_gmt":"2021-07-20T07:33:34","guid":{"rendered":"https:\/\/www.paloaltonetworks.com\/blog\/?p=138569"},"modified":"2021-07-20T00:44:08","modified_gmt":"2021-07-20T07:44:08","slug":"diagnosing-the-ransomware-deployment-protocol","status":"publish","type":"post","link":"https:\/\/origin-researchcenter.paloaltonetworks.com\/blog\/2021\/07\/diagnosing-the-ransomware-deployment-protocol\/?lang=ja","title":{"rendered":"\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u5c55\u958b\u306b\u60aa\u7528\u3055\u308c\u308bRDP\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u89e3\u8aac"},"content":{"rendered":"<p>\u30ea\u30e2\u30fc\u30c8 \u30c7\u30b9\u30af\u30c8\u30c3\u30d7 \u30d7\u30ed\u30c8\u30b3\u30eb(RDP)\u306f\u3001\u6570\u5e74\u524d\u304b\u3089\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u521d\u671f\u306e\u653b\u6483\u7d4c\u8def\u3068\u3057\u3066\u6700\u3082\u4e00\u822c\u7684\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<a href=\"https:\/\/www.paloaltonetworks.com\/resources\/research\/2020-unit42-incident-response-and-data-breach-report\">2020\u5e74\u306eUnit 42\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u30ec\u30b9\u30dd\u30f3\u30b9\u304a\u3088\u3073\u30c7\u30fc\u30bf\u4fb5\u5bb3\u30ec\u30dd\u30fc\u30c8<\/a><span style=\"font-weight: 400;\">\u3067\u3001Unit 42\u304c1,000\u4ef6\u3092\u8d85\u3048\u308b\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u306e\u30c7\u30fc\u30bf\u3092\u8abf\u67fb\u3057\u305f\u7d50\u679c\u3001\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u304c\u5c0e\u5165\u3055\u308c\u305f\u30b1\u30fc\u30b9\u306e50%\u3067RDP\u304c\u521d\u671f\u306e\u653b\u6483\u7d4c\u8def\u3067\u3042\u3063\u305f\u3053\u3068\u304c\u5224\u660e\u3057\u307e\u3057\u305f\u3002<\/span>\u307e\u305f\u3001<a href=\"https:\/\/start.paloaltonetworks.jp\/asm-report\" rel=\"nofollow,noopener\" >2021 Cortex Xpanse\u653b\u6483\u5bfe\u8c61\u9818\u57df\u306b\u95a2\u3059\u308b\u8105\u5a01\u30ec\u30dd\u30fc\u30c8<\/a>\u3067\u3001Cortex Xpanse\u306e\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306f\u3001RDP\u304c\u3059\u3079\u3066\u306e\u8106\u5f31\u6027\u306e30%\u3092\u5360\u3081\u3066\u304a\u308a\u3001\u3053\u308c\u306f\u6b21\u306b\u591a\u3044\u8106\u5f31\u6027\u306e2\u500d\u4ee5\u4e0a\u3067\u3042\u308b\u3053\u3068\u3092\u660e\u3089\u304b\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>RDP\u306f\u3001Microsoft Windows\u30b7\u30b9\u30c6\u30e0\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30ea\u30e2\u30fc\u30c8\u30b7\u30b9\u30c6\u30e0\u306b\u30ea\u30e2\u30fc\u30c8\u63a5\u7d9a\u3057\u3066\u5236\u5fa1\u3067\u304d\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u6700\u3082\u4e00\u822c\u7684\u304b\u3064\u6b63\u5f53\u306a\u4f7f\u7528\u6cd5\u306f\u3001IT\u30b5\u30dd\u30fc\u30c8\u62c5\u5f53\u8005\u304c\u554f\u984c\u3092\u4fee\u6b63\u3059\u308b\u305f\u3081\u306b\u30e6\u30fc\u30b6\u30fc\u306e\u30b7\u30b9\u30c6\u30e0\u3092\u30ea\u30e2\u30fc\u30c8\u64cd\u4f5c\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u6700\u8fd1\u3067\u306f\u3001\u30af\u30e9\u30a6\u30c9\u74b0\u5883\u306e\u4eee\u60f3\u30de\u30b7\u30f3(VM)\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u304b\u3001\u30af\u30e9\u30a6\u30c9\u8cc7\u7523\u3092\u30ea\u30e2\u30fc\u30c8\u306b\u7ba1\u7406\u3059\u308b\u305f\u3081\u306b\u3001\u30af\u30e9\u30a6\u30c9\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3067RDP\u304c\u666e\u53ca\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u524d\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bb\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u3067\u4fdd\u8b77\u3055\u308c\u3066\u3044\u305f\u30b7\u30b9\u30c6\u30e0\u3001\u30af\u30e9\u30a6\u30c9\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u3053\u3068\u3092\u5fd8\u308c\u3066\u3001RDP\u3092\u516c\u958b\u3057\u305f\u307e\u307e\u306b\u3059\u308b\u304b\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u76f4\u63a5\u63a5\u7d9a\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u610f\u56f3\u305b\u305a\u306bRDP\u3092\u516c\u958b\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u306f\u975e\u5e38\u306b\u3088\u304f\u3042\u308a\u307e\u3059\u3002<span style=\"font-weight: 400;\">\u3055\u3089\u306b\u60aa\u3044\u3053\u3068\u306f\u3001\u653b\u6483(\u7279\u306b\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u5c0e\u5165)\u3001\u30c7\u30fc\u30bf\u306e\u640d\u5931\u3001\u9ad8\u30b3\u30b9\u30c8\u306a\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u304a\u3088\u3073\u4fee\u5fa9\u4f5c\u696d\u3001\u7d44\u7e54\u306e\u30d6\u30e9\u30f3\u30c9\u4fa1\u5024\u306e\u4f4e\u4e0b\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u30ea\u30b9\u30af\u3068\u3057\u3066\u3001RDP\u304c\u307e\u3059\u307e\u3059\u62e1\u6563\u3057\u3001\u516c\u958b\u3055\u308c\u3001\u5e83\u304f\u884c\u304d\u6e21\u3063\u3066\u3044\u308b\u3053\u3068\u3067\u3059<\/span>\u3002<\/p>\n<h2>\u8106\u5f31\u6027\u306e\u5897\u5927\u306b\u4f34\u3046\u30bf\u30fc\u30b2\u30c3\u30c8\u306e\u5897\u52a0<\/h2>\n<p>\u65b0\u578b\u30b3\u30ed\u30ca\u30a6\u30a4\u30eb\u30b9\u611f\u67d3\u75c7(COVID-19)\u306e\u62e1\u5927\u306b\u3088\u308a\u3001\u307e\u305a\u5728\u5b85\u52e4\u52d9\u304c\u6025\u5897\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u7d50\u679c\u3001\u30ce\u30fc\u30c8\u30d1\u30bd\u30b3\u30f3\u306f\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u5099\u3048\u305f\u30aa\u30d5\u30a3\u30b9\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5b89\u5168\u306a\u9818\u57df\u304b\u3089\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u8003\u616e\u3055\u308c\u3066\u3044\u306a\u3044\u30db\u30fc\u30e0\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u3068\u79fb\u52d5\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>IT\u90e8\u9580\u306f\u3053\u306e\u79fb\u884c\u306b\u5bfe\u3059\u308b\u6e96\u5099\u3092\u6574\u3048\u3066\u3044\u306a\u304b\u3063\u305f\u305f\u3081\u3001\u65b0\u3057\u3044\u30ce\u30fc\u30c8\u30d1\u30bd\u30b3\u30f3\u3092\u8cfc\u5165\u3057\u3001\u975e\u5e38\u306b\u77ed\u3044\u671f\u9593\u5185\u306b\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30ab\u30fc\u306b\u63d0\u4f9b\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u3053\u306e\u30b9\u30d4\u30fc\u30c9\u304c\u30df\u30b9\u3092\u62db\u304d\u3001RDP\u306e\u8106\u5f31\u6027\u304c\u5897\u5927\u3057\u307e\u3057\u305f\u3002\u307e\u305f\u3001\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u3078\u306e\u79fb\u884c\u306b\u3088\u3063\u3066\u3001\u30a8\u30d5\u30a7\u30e1\u30e9\u30eb\u30c0\u30a4\u30ca\u30df\u30c3\u30afDNS\u306b\u95a2\u9023\u3059\u308b\u30ea\u30b9\u30af\u3082\u5897\u5927\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>IP\u30a2\u30c9\u30ec\u30b9\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u30aa\u30d5\u30a3\u30b9\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306f\u3001\u30a4\u30f3\u30d9\u30f3\u30c8\u30ea\u4f5c\u6210\u3084\u8ffd\u8de1\u304c\u5bb9\u6613\u3067\u3059\u3002\u4e00\u65b9\u3001\u500b\u4eba\u306e\u5bb6\u5ead\u3067\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308bIP\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30b5\u30fc\u30d3\u30b9 \u30d7\u30ed\u30d0\u30a4\u30c0(ISP)\u304c\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u306b\u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u308b\u305f\u3081\u3001\u6bce\u65e5\u5909\u66f4\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u3053\u306e\u3088\u3046\u306a\u30ea\u30e2\u30fc\u30c8\u8cc7\u7523\u306f\u81ea\u5b85\u3068\u30ab\u30d5\u30a7\u3084\u53cb\u4eba\u306e\u5bb6\u306e\u9593\u3092\u79fb\u52d5\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u3001\u305d\u306e\u305f\u3073\u306b\u65b0\u3057\u3044IP\u30a2\u30c9\u30ec\u30b9\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u30ea\u30b9\u30af\u306f\u4ee5\u524d\u304b\u3089\u3042\u308a\u307e\u3057\u305f\u304c\u3001\u73fe\u5728\u3001\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30ab\u30fc\u306e\u6570\u306f\u3053\u308c\u307e\u3067\u306b\u306a\u304f\u5897\u5927\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/start.paloaltonetworks.jp\/unit42-cloud-threat-covid-19-conundrum.html\" rel=\"nofollow,noopener\" >Unit 42\u30af\u30e9\u30a6\u30c9\u8105\u5a01\u30ec\u30dd\u30fc\u30c8\u30012021\u5e74\u4e0a\u671f\u7248<\/a>\u3067\u306f\u30012020\u5e74\u7b2c1\u56db\u534a\u671f(COVID-19\u306e\u767a\u751f\u524d)\u304b\u30892020\u5e74\u7b2c2\u56db\u534a\u671f(COVID-19\u306e\u767a\u751f\u5f8c)\u306e\u9593\u306b\u3001RDP\u306e\u8106\u5f31\u6027\u304c\u3059\u3079\u3066\u306e\u30af\u30e9\u30a6\u30c9\u30d7\u30ed\u30d0\u30a4\u30c0\u306b\u308f\u305f\u3063\u306659%\u5897\u52a0\u3057\u305f\u3053\u3068\u304c\u5224\u660e\u3057\u307e\u3057\u305f\u3002\u65b0\u3057\u3044\u30af\u30e9\u30a6\u30c9\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u7a3c\u52d5\u3059\u308b\u3053\u3068\u306f\u3053\u308c\u307e\u3067\u306b\u306a\u304f\u7c21\u5358\u306b\u306a\u3063\u3066\u304a\u308a\u3001\u30df\u30b9\u304c\u751f\u3058\u308b\u53ef\u80fd\u6027\u306f\u5897\u3048\u308b\u4e00\u65b9\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001RDP\u306f\u3042\u3089\u3086\u308b\u5834\u6240\u306b\u3042\u308a\u3001\u653b\u6483\u8005\u306e\u4e3b\u8981\u306a\u30bf\u30fc\u30b2\u30c3\u30c8\u3067\u3001\u591a\u304f\u306e\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u653b\u6483\u3067\u521d\u671f\u306e\u653b\u6483\u7d4c\u8def\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u6b8b\u5ff5\u306a\u304c\u3089\u3001\u3055\u3089\u306b\u60aa\u3044\u30cb\u30e5\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002Cortex Xpanse\u30ec\u30dd\u30fc\u30c8\u306b\u3088\u308b\u3068\u3001RDP\u306f\u30012021\u5e74\u306e\u6700\u521d\u306e3\u30ab\u6708\u9593\u306b\u300150\u793e\u306e\u30b0\u30ed\u30fc\u30d0\u30eb\u4f01\u696d\u306b\u95a2\u9023\u3059\u308b5,000\u4e07\u306eIP\u30a2\u30c9\u30ec\u30b9\u306e\u30b9\u30ad\u30e3\u30f3\u3067\u767a\u898b\u3055\u308c\u305f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u554f\u984c\u5168\u4f53\u306e32%\u3092\u5360\u3081\u3066\u3044\u305f\u306e\u3067\u3059\u3002<\/p>\n<h2>RDP\u304c\u5371\u967a\u3067\u3042\u308b\u7406\u7531<\/h2>\n<p>RDP\u3067\u306f\u3001\u3072\u3068\u305f\u3073\u4fb5\u5165\u3059\u308c\u3070\u3001\u30b7\u30b9\u30c6\u30e0\u306b\u5bfe\u3059\u308b\u30d5\u30eb\u30a2\u30af\u30bb\u30b9\u6a29\u9650(\u4fb5\u5bb3\u3055\u308c\u305f\u30e6\u30fc\u30b6\u30fc\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u30ec\u30d9\u30eb)\u307e\u3067\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u653b\u6483\u8005\u306b\u3068\u3063\u3066\u306f\u597d\u307e\u3057\u3044\u30bf\u30fc\u30b2\u30c3\u30c8\u3068\u3044\u3048\u307e\u3059\u3002\u7ba1\u7406\u8005\u30a2\u30ab\u30a6\u30f3\u30c8\u304c\u653b\u6483\u3055\u308c\u308b\u3068\u91cd\u5927\u306a\u88ab\u5bb3\u304c\u751f\u3058\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u4fb5\u5bb3\u3055\u308c\u305f\u306e\u304c\u5236\u9650\u3055\u308c\u305f\u30e6\u30fc\u30b6\u30fc\u30a2\u30ab\u30a6\u30f3\u30c8\u3067\u3042\u3063\u3066\u3082\u3001\u305d\u306e\u30b7\u30b9\u30c6\u30e0\u306e\u5225\u306e\u8106\u5f31\u6027\u3092\u898b\u3064\u3051\u3055\u3048\u3059\u308c\u3070\u3001\u6a29\u9650\u3092\u6607\u683c\u3057\u3066\u3055\u3089\u306b\u4e0a\u306e\u30a2\u30af\u30bb\u30b9\u6a29\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u60aa\u610f\u306e\u3042\u308b\u653b\u6483\u8005\u306f\u3001\u516c\u958b\u3055\u308c\u3066\u3044\u308bRDP\u3092\u898b\u3064\u3051\u308b\u305f\u3081\u306b\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3067\u958b\u3044\u3066\u3044\u308b\u30dd\u30fc\u30c83389 (\u30c7\u30d5\u30a9\u30eb\u30c8\u306eRDP\u30dd\u30fc\u30c8)\u3092\u30b9\u30ad\u30e3\u30f3\u3059\u308b\u30b7\u30f3\u30d7\u30eb\u306anmap\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002\u4eca\u65e5\u3001\u653b\u6483\u8005\u306f\u3001\u4e0b\u306e\u56f3\u306b\u793a\u3059\u3088\u3046\u306b\u30dd\u30fc\u30c83389\u3092\u5e38\u306b\u30b9\u30ad\u30e3\u30f3\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_137600\" class=\"wp-caption alignnone\" style=\"width: 1920px;\" aria-describedby=\"caption-attachment-137600\">\n<div style=\"width: 1920px; max-width: 100%;\">\n<figure id=\"attachment_137600\" aria-describedby=\"caption-attachment-137600\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><div style=\"max-width:100%\" data-width=\"900\"><span class=\"ar-custom\" style=\"padding-bottom:56.22%;\"><img loading=\"lazy\" decoding=\"async\"  class=\"lozad wp-image-137607 lozad\"  data-src=\"https:\/\/www.paloaltonetworks.com\/blog\/wp-content\/uploads\/2021\/07\/word-image.jpeg\" alt=\"\u653b\u6483\u8005\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u5c0e\u5165\u3092\u6700\u7d42\u76ee\u7684\u3068\u3057\u3066\u958b\u3044\u3066\u3044\u308bRDP\u30dd\u30fc\u30c8\u3092\u30b9\u30ad\u30e3\u30f3\u3057\u307e\u3059\u3002\" width=\"900\" height=\"506\" data-src=\"https:\/\/www.paloaltonetworks.com\/blog\/wp-content\/uploads\/2021\/07\/word-image.jpeg\" \/><\/span><\/div><figcaption id=\"caption-attachment-137600\" class=\"wp-caption-text\">\u653b\u6483\u8005\u306f\u591a\u304f\u306e\u5834\u5408\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u5c0e\u5165\u3092\u6700\u7d42\u76ee\u7684\u3068\u3057\u3066\u958b\u3044\u3066\u3044\u308bRDP\u30dd\u30fc\u30c8\u3092\u30b9\u30ad\u30e3\u30f3\u3059\u308b<\/figcaption><\/figure>\n<\/div><figcaption id=\"caption-attachment-137600\" class=\"wp-caption-text\"><\/figcaption><\/figure>\n<p>Cortex Xpanse\u30ea\u30b5\u30fc\u30c1\u306b\u3088\u308b\u3068\u3001\u653b\u6483\u8005\u306f\u305f\u3063\u305f45\u5206\u3067\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5168\u4f53\u3092\u30b9\u30ad\u30e3\u30f3\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u516c\u958b\u3055\u308c\u3066\u3044\u308bRDP\u3092\u767a\u898b\u3057\u305f\u5834\u5408\u3001\u653b\u6483\u8005\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8907\u6570\u306e\u65b9\u6cd5\u3067\u4fb5\u5165\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u76d7\u3093\u3060\u8cc7\u683c\u60c5\u5831\u3092\u4f7f\u7528\u3057\u3066\u30ed\u30b0\u30a4\u30f3\u3057\u307e\u3059\u3002<\/li>\n<li>\u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u653b\u6483\u306b\u3088\u3063\u3066\u30ed\u30b0\u30a4\u30f3\u3057\u307e\u3059(\u5b9f\u88c5\u306b\u304a\u3044\u3066\u7121\u5236\u9650\u306e\u30ed\u30b0\u30a4\u30f3\u8a66\u884c\u304c\u8a31\u53ef\u3055\u308c\u3066\u3044\u308b\u5834\u5408)\u3002<\/li>\n<li>\u65e7\u30d0\u30fc\u30b8\u30e7\u30f3\u306eRDP\u3067\u3042\u308b\u5834\u5408\u3084\u6b20\u9665\u306e\u3042\u308b\u6697\u53f7\u5316\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u4e2d\u9593\u8005(man-in-the-middle)\u653b\u6483\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/li>\n<li><a href=\"https:\/\/expanse.co\/blog\/bluekeep-the-threat-is-real-and-heres-what-you-should-do\/\" rel=\"nofollow,noopener\">BlueKeep<\/a>\u306a\u3069\u306e\u65e7\u30d0\u30fc\u30b8\u30e7\u30f3\u306eRDP\u306b\u304a\u3051\u308b\u65e2\u77e5\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u300c\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u304f\u3058\u300d\u3092\u5f15\u3044\u3066\u306f\u3044\u3051\u306a\u3044<\/h2>\n<p>\u60aa\u610f\u306e\u3042\u308b\u653b\u6483\u8005\u304c\u5fc5\u305a\u3057\u3082\u7279\u5b9a\u30bf\u30fc\u30b2\u30c3\u30c8\u3092\u63a2\u3057\u3066\u3044\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001\u653b\u6483\u304b\u3089\u53ce\u76ca\u5316\u3059\u308b\u3053\u3068\u3060\u3051\u3092\u6c42\u3081\u3066\u8106\u5f31\u6027\u3092\u63a2\u3057\u3066\u3044\u307e\u3059\u3002\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306f\u60aa\u610f\u304c\u5f53\u305f\u308b\u300c\u5b9d\u304f\u3058\u300d\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3001RDP\u306e\u3088\u3046\u306a\u8106\u5f31\u6027\u3092\u4f34\u3046\u30c9\u30a2\u3092\u958b\u3044\u305f\u307e\u307e\u306b\u3059\u308b\u3060\u3051\u3067\u5f53\u9078\u78ba\u7387\u304c\u3042\u304c\u308a\u307e\u3059\u3002<\/p>\n<p>\u3042\u3089\u3086\u308b\u7d44\u7e54\u306b\u3068\u3063\u3066\u306e\u7b2c\u4e00\u6b69\u306f\u3001\u653b\u6483\u8005\u3088\u308a\u3082\u5148\u306b\u8106\u5f31\u6027\u3092\u30b9\u30ad\u30e3\u30f3\u3057\u3066RDP\u30ea\u30b9\u30af\u3092\u6291\u3048\u3001\u3059\u3079\u3066\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u30c7\u30d0\u30a4\u30b9\u306b\u5bfe\u3059\u308b\u5341\u5206\u306a\u53ef\u8996\u6027\u3068\u8a18\u9332\u30b7\u30b9\u30c6\u30e0\u3092\u78ba\u5b9f\u306b\u7528\u610f\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u65b0\u3057\u3044\u8cc7\u7523\u304c\u8ffd\u52a0\u3055\u308c\u305f\u308a\u3001\u65e2\u77e5\u306e\u8cc7\u7523\u306e\u8a2d\u5b9a\u304c\u5371\u967a\u306a\u65b9\u6cd5\u3067\u5909\u66f4\u3055\u308c\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u3053\u306e\u8a18\u9332\u30b7\u30b9\u30c6\u30e0\u306f\u66f4\u65b0\u3057\u3064\u3065\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u8106\u5f31\u6027\u30b9\u30ad\u30e3\u30ca\u306fIP\u9818\u57df\u5916\u306b\u3042\u308b\u8106\u5f31\u6027\u3092\u691c\u51fa\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u5916\u5074\u304b\u3089\u30b9\u30ad\u30e3\u30f3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4e3b\u8981\u306a\u4f01\u696d\u306f\u3001MTTI(<a href=\"https:\/\/www.paloaltonetworks.com\/blog\/2021\/05\/rsac-attack-surface-management\/\">\u5e73\u5747\u68da\u5378\u6642\u9593<\/a>)\u3092\u4f7f\u7528\u3057\u3066\u3001\u30a4\u30f3\u30d9\u30f3\u30c8\u30ea\u5168\u4f53\u3092\u30b9\u30ad\u30e3\u30f3\u3057\u3001\u6f5c\u5728\u7684\u306a\u8106\u5f31\u6027\u3092\u8a55\u4fa1\u3059\u308b\u305f\u3081\u306b\u304b\u304b\u308b\u6642\u9593\u3092\u6e2c\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4e0d\u8981\u306aRDP\u304c\u516c\u958b\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u7b2c1\u306e\u65b9\u6cd5\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u3002\u5fc5\u8981\u304c\u306a\u3044\u306a\u3089\u3059\u3079\u3066\u306e\u30b7\u30b9\u30c6\u30e0\u3067RDP\u3092\u7121\u52b9\u5316\u3059\u308c\u3070\u3088\u3044\u306e\u3067\u3059\u3002\u305d\u3057\u3066RDP\u304c\u5fc5\u8981\u306a\u30b7\u30b9\u30c6\u30e0\u3067\u3042\u308c\u3070\u3001\u4ee5\u4e0b\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306b\u5f93\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u4eee\u60f3\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af(VPN)\u306e\u80cc\u5f8c\u306bRDP\u3092\u914d\u7f6e\u3057\u307e\u3059\u3002<\/li>\n<li>\u591a\u8981\u7d20\u8a8d\u8a3c(MFA)\u3092\u6709\u52b9\u5316\u3057\u307e\u3059\u3002\u76d7\u307e\u308c\u305f\u8cc7\u683c\u60c5\u5831\u306b\u95a2\u9023\u3059\u308b\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3059\u308b\u305f\u3081\u306e\u6700\u9069\u306a\u65b9\u6cd5\u306f\u3001\u3059\u3079\u3066\u306e\u30e6\u30fc\u30b6\u30fc\u30a2\u30ab\u30a6\u30f3\u30c8\u3067MFA\u3092\u78ba\u5b9f\u306b\u6709\u52b9\u5316\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/li>\n<li>\u30ed\u30b0\u30a4\u30f3\u8a66\u884c\u3092\u5236\u9650\u3057\u307e\u3059\u3002\u540c\u69d8\u306b\u3001\u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u653b\u6483\u306e\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3059\u308b\u306b\u306f\u3001\u7121\u5236\u9650\u306b\u30ed\u30b0\u30a4\u30f3\u8a66\u884c\u3092\u8a31\u53ef\u305b\u305a\u306b\u3001\u5931\u6557\u3057\u305f\u30ed\u30b0\u30a4\u30f3\u8a66\u884c\u56de\u6570\u3092\u5236\u9650\u3057\u307e\u3059\u3002<\/li>\n<li>\u5207\u65ad\u3055\u308c\u305f\u30bb\u30c3\u30b7\u30e7\u30f3\u306b\u6642\u9593\u5236\u9650\u3092\u8a2d\u3051\u3001\u5236\u9650\u306b\u9054\u3057\u305f\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u81ea\u52d5\u7684\u306b\u7d42\u4e86\u3055\u305b\u307e\u3059\u3002<\/li>\n<li>\u8a31\u53ef\u30ea\u30b9\u30c8\u3092\u8a2d\u5b9a\u3057\u3001\u627f\u8a8d\u6e08\u307f\u306eIP\u30a2\u30c9\u30ec\u30b9\u306e\u307f\u304cRDP\u30b5\u30fc\u30d0\u30fc\u306b\u63a5\u7d9a\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/li>\n<li><a href=\"https:\/\/www.paloaltonetworks.com\/cortex\/cortex-xpanse\">Cortex Xpanse<\/a>\u306a\u3069\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u898f\u6a21\u306e\u653b\u6483\u5bfe\u8c61\u9818\u57df\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u5c0e\u5165\u3057\u3001RDP\u3084\u305d\u306e\u4ed6\u306e\u30ea\u30e2\u30fc\u30c8 \u30a2\u30af\u30bb\u30b9 \u30b5\u30fc\u30d3\u30b9\u306e\u610f\u56f3\u3057\u306a\u3044\u8106\u5f31\u6027\u3092\u76e3\u8996\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>RDP\u3092\u512a\u5148\u3059\u308b<\/h2>\n<p>\u4e0a\u8a18\u306e\u7406\u7531\u306e\u305f\u3081\u306b\u3001RDP\u306f\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u5c0e\u5165\u306b\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002RDP\u306e\u8a2d\u5b9a\u306f\u3001\u3059\u3079\u3066\u306eIT\u885b\u751f\u7ba1\u7406\u8a08\u753b\u306b\u304a\u3044\u3066\u512a\u5148\u5ea6\u306e\u9ad8\u3044\u9805\u76ee\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u8a2d\u5b9a\u304c\u5371\u967a\u6027\u3092\u6709\u3059\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308a\u3001\u30ea\u30b9\u30af\u306e\u9ad8\u3044\u65b9\u6cd5\u3067\u3053\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u6709\u52b9\u5316\u307e\u305f\u306f\u4f7f\u7528\u3055\u308c\u308b\u3053\u3068\u306f\u975e\u5e38\u306b\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u9069\u5207\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3051\u308c\u3070\u3001\u7d44\u7e54\u304c\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u30aa\u30da\u30ec\u30fc\u30bf\u306e\u30bf\u30fc\u30b2\u30c3\u30c8\u3068\u306a\u3063\u305f\u5834\u5408\u306b\u3001RDP\u304c\u653b\u6483\u7d4c\u8def\u3068\u3057\u3066\u5229\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u7406\u8ad6\u4e0a\u306e\u30ea\u30b9\u30af\u3067\u306f\u306a\u304f\u3001IT\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u30b7\u30f3\u30d7\u30eb\u306a\u4e8b\u5b9f\u3067\u3059\u3002<strong>\u4fdd\u8b77\u3055\u308c\u3066\u3044\u306a\u3044RDP\u306f\u3001\u3044\u3064\u304b\u653b\u6483\u306b\u5229\u7528\u3055\u308c\u307e\u3059\u3002 <\/strong><\/p>\n<p>RDP\u306e\u516c\u958b\u304c\u610f\u56f3\u7684\u3067\u3042\u308b\u304b\u5426\u304b\u306b\u304b\u304b\u308f\u3089\u305a\u3001RDP\u306f\u65e2\u77e5\u306eIP\u9818\u57df\u3060\u3051\u3067\u306a\u304f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5168\u4f53\u306b\u516c\u958b\u3055\u308c\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u653b\u6483\u8005\u3082\u76e3\u8996\u3057\u3066\u3044\u308b\u3053\u3068\u306f\u78ba\u5b9f\u3067\u3042\u308b\u305f\u3081\u3001\u9632\u5fa1\u5074\u306f\u610f\u56f3\u3057\u306a\u3044\u5b9f\u88c5\u3084\u8a2d\u5b9a\u30df\u30b9\u306e\u3042\u308b\u5b9f\u88c5\u3092\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u898f\u6a21\u3067\u76e3\u8996\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u653b\u6483\u5bfe\u8c61\u9818\u57df\u306b\u5bfe\u3059\u308b\u30ea\u30b9\u30af\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/start.paloaltonetworks.jp\/asm-report\" rel=\"nofollow,noopener\" >2021 Cortex Xpanse \u653b\u6483\u5bfe\u8c61\u9818\u57df\u306b\u95a2\u3059\u308b\u8105\u5a01\u30ec\u30dd\u30fc\u30c8<\/a>\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30ea\u30e2\u30fc\u30c8 \u30c7\u30b9\u30af\u30c8\u30c3\u30d7 \u30d7\u30ed\u30c8\u30b3\u30eb(RDP)\u306f\u3001\u6570\u5e74\u524d\u304b\u3089\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u521d\u671f\u306e\u653b\u6483\u7d4c\u8def\u3068\u3057\u3066\u6700\u3082\u4e00\u822c\u7684\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u30022020\u5e74\u306eUnit 42\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u30ec\u30b9\u30dd\u30f3\u30b9\u304a\u3088\u3073\u30c7\u30fc\u30bf\u4fb5\u5bb3\u30ec\u30dd\u30fc\u30c8\u3067\u3001Unit 42\u304c1,000\u4ef6\u3092\u8d85\u3048\u308b\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u306e\u30c7\u30fc\u30bf\u3092\u8abf\u67fb\u3057\u305f\u7d50\u679c\u3001\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u304c\u5c0e\u5165\u3055\u308c\u305f\u30b1\u30fc\u30b9\u306e50%\u3067RDP\u304c\u521d\u671f\u306e\u653b\u6483\u7d4c\u8def\u3067\u3042\u3063\u305f\u3053\u3068\u304c\u5224\u660e\u3057\u307e\u3057\u305f\u3002\u307e\u305f\u30012021 Cortex Xpanse\u653b\u6483\u5bfe\u8c61\u9818\u57df\u306b\u95a2\u3059\u308b\u8105\u5a01\u30ec\u30dd\u30fc\u30c8\u3067\u3001Cortex Xpanse\u306e\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306f\u3001RDP\u304c\u3059\u3079\u3066\u306e\u8106\u5f31\u6027\u306e30%\u3092\u5360\u3081\u3066\u304a\u308a\u3001\u3053\u308c\u306f\u6b21\u306b\u591a\u3044\u8106\u5f31\u6027\u306e2\u500d\u4ee5\u4e0a\u3067\u3042\u308b\u3053\u3068\u3092\u660e\u3089\u304b\u306b\u3057\u307e\u3057\u305f\u3002 RDP\u306f\u3001Microsoft Windows\u30b7\u30b9\u30c6\u30e0\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30ea\u30e2\u30fc\u30c8\u30b7\u30b9\u30c6\u30e0\u306b\u30ea\u30e2\u30fc\u30c8\u63a5\u7d9a\u3057\u3066\u5236\u5fa1\u3067\u304d\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u6700\u3082\u4e00\u822c\u7684\u304b\u3064\u6b63\u5f53\u306a\u4f7f\u7528\u6cd5\u306f\u3001IT\u30b5\u30dd\u30fc\u30c8\u62c5\u5f53\u8005\u304c\u554f\u984c\u3092\u4fee\u6b63\u3059\u308b\u305f\u3081\u306b\u30e6\u30fc\u30b6\u30fc\u306e\u30b7\u30b9\u30c6\u30e0\u3092\u30ea\u30e2\u30fc\u30c8\u64cd\u4f5c\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u6700\u8fd1\u3067\u306f\u3001\u30af\u30e9\u30a6\u30c9\u74b0\u5883\u306e\u4eee\u60f3\u30de\u30b7\u30f3(VM)\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u304b\u3001\u30af\u30e9\u30a6\u30c9\u8cc7\u7523\u3092\u30ea\u30e2\u30fc\u30c8\u306b\u7ba1\u7406\u3059\u308b\u305f\u3081\u306b\u3001\u30af\u30e9\u30a6\u30c9\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3067RDP\u304c\u666e\u53ca\u3057\u3066\u3044\u307e\u3059\u3002 \u4ee5\u524d\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bb\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u3067\u4fdd\u8b77\u3055\u308c\u3066\u3044\u305f\u30b7\u30b9\u30c6\u30e0\u3001\u30af\u30e9\u30a6\u30c9\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u3053\u3068\u3092\u5fd8\u308c\u3066\u3001RDP\u3092\u516c\u958b\u3057\u305f\u307e\u307e\u306b\u3059\u308b\u304b\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u76f4\u63a5\u63a5\u7d9a\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u610f\u56f3\u305b\u305a\u306bRDP\u3092\u516c\u958b\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u306f\u975e\u5e38\u306b\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u60aa\u3044\u3053\u3068\u306f\u3001\u653b\u6483(\u7279\u306b\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u5c0e\u5165)\u3001\u30c7\u30fc\u30bf\u306e\u640d\u5931\u3001\u9ad8\u30b3\u30b9\u30c8\u306a\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u304a\u3088\u3073\u4fee\u5fa9\u4f5c\u696d\u3001\u7d44\u7e54\u306e\u30d6\u30e9\u30f3\u30c9\u4fa1\u5024\u306e\u4f4e\u4e0b\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u30ea\u30b9\u30af\u3068\u3057\u3066\u3001RDP\u304c\u307e\u3059\u307e\u3059\u62e1\u6563\u3057\u3001\u516c\u958b\u3055\u308c\u3001\u5e83\u304f\u884c\u304d\u6e21\u3063\u3066\u3044\u308b\u3053\u3068\u3067\u3059\u3002 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IT\u90e8\u9580\u306f\u3053\u306e\u79fb\u884c\u306b\u5bfe\u3059\u308b\u6e96\u5099\u3092\u6574\u3048\u3066\u3044\u306a\u304b\u3063\u305f\u305f\u3081\u3001\u65b0\u3057\u3044\u30ce\u30fc\u30c8\u30d1\u30bd\u30b3\u30f3\u3092\u8cfc\u5165\u3057\u3001\u975e\u5e38\u306b\u77ed\u3044\u671f\u9593\u5185\u306b\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30ab\u30fc\u306b\u63d0\u4f9b\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u3053\u306e\u30b9\u30d4\u30fc\u30c9\u304c\u30df\u30b9\u3092\u62db\u304d\u3001RDP\u306e\u8106\u5f31\u6027\u304c\u5897\u5927\u3057\u307e\u3057\u305f\u3002\u307e\u305f\u3001\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u3078\u306e\u79fb\u884c\u306b\u3088\u3063\u3066\u3001\u30a8\u30d5\u30a7\u30e1\u30e9\u30eb\u30c0\u30a4\u30ca\u30df\u30c3\u30afDNS\u306b\u95a2\u9023\u3059\u308b\u30ea\u30b9\u30af\u3082\u5897\u5927\u3057\u307e\u3057\u305f\u3002 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