{"id":125847,"date":"2022-11-22T01:23:23","date_gmt":"2022-11-22T09:23:23","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=125847"},"modified":"2024-07-30T19:45:42","modified_gmt":"2024-07-31T02:45:42","slug":"doublezero-net-wiper","status":"publish","type":"post","link":"https:\/\/origin-unit42.paloaltonetworks.com\/ja\/doublezero-net-wiper\/","title":{"rendered":"DoubleZero .NET Wiper\u306e\u6a5f\u68b0\u5b66\u7fd2\u30d9\u30fc\u30b9\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u308b\u691c\u51fa"},"content":{"rendered":"<h2>\u6982\u8981<\/h2>\n<p>\u672c\u7a3f\u3067\u306f\u300cDoubleZero\u300d\u3068\u3044\u3046\u540d\u524d\u306e.NET\u30ef\u30a4\u30d1\u30fc\u306e\u5206\u6790\u3092\u4f8b\u306b\u3068\u308a\u3001\u30d5\u30a1\u30a4\u30eb\u5185\u306e\u7279\u5b9a\u306e\u69cb\u9020\u306b\u3082\u3068\u3065\u3044\u3066.NET\u30b5\u30f3\u30d7\u30eb\u306e\u60aa\u6027\u5ea6\u3092\u4e88\u6e2c\u3059\u308b\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002\u540c\u8105\u5a01\u3092PE\u306e\u69cb\u9020\u89e3\u6790\u3067\u691c\u51fa\u3059\u308b\u4e0a\u3067\u306e\u8ab2\u984c\u3092\u7279\u5b9a\u3057\u305f\u5f8c\u3001\u691c\u51fa\u6642\u306b\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u304c\u62fe\u3044\u3042\u3052\u305f\u624b\u304c\u304b\u308a\u3092\u691c\u8a3c\u3057\u3001\u7d50\u8ad6\u3092\u8ff0\u3079\u3066\u3057\u3081\u304f\u304f\u308a\u307e\u3059\u3002<\/p>\n<p>\u30ef\u30a4\u30d1\u30fc(\u30c7\u30fc\u30bf\u3092\u7834\u58ca\u306a\u3044\u3057\u6d88\u53bb\u3059\u308b\u30de\u30eb\u30a6\u30a7\u30a2)\u306f\u3068\u304f\u306b\u76ee\u65b0\u3057\u3044\u8105\u5a01\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u30ed\u30b7\u30a2\u30fb\u30a6\u30af\u30e9\u30a4\u30ca\u9593\u3067\u9032\u884c\u4e2d\u306e\u30b5\u30a4\u30d0\u30fc\u6d3b\u52d5\u95a2\u9023\u3067\u65b0\u305f\u306a\u30ef\u30a4\u30d1\u30fc\u304c\u3053\u3053\u306e\u3068\u3053\u308d\u8907\u6570\u767a\u898b\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304b\u3089\u3001\u30ef\u30a4\u30d1\u30fc\u306e\u5229\u7528\u3092\u7279\u5b9a\u3057\u3066\u9632\u5fa1\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u4e16\u9593\u306e\u95a2\u5fc3\u304c\u3075\u305f\u305f\u3073\u9ad8\u307e\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3001WildFire\u3084\u9ad8\u5ea6\u306a\u8105\u5a01\u9632\u5fa1\u306a\u3069\u306e\u30af\u30e9\u30a6\u30c9\u578b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b5\u30fc\u30d3\u30b9\u3092\u6709\u52b9\u306b\u3057\u305f\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068Cortex XDR\u306b\u3088\u308a.NET\u30de\u30eb\u30a6\u30a7\u30a2\u304b\u3089\u306e\u4fdd\u8b77\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<table style=\"width: 93.3503%;\">\n<tbody>\n<tr>\n<td style=\"width: 32.6044%;\"><span style=\"font-weight: 400;\">\u95a2\u9023\u3059\u308bUnit 42\u306e\u30c8\u30d4\u30c3\u30af<\/span><\/td>\n<td style=\"width: 227.833%;\"><a href=\"https:\/\/unit42.paloaltonetworks.jp\/tag\/machine-learning-ja\/\"><span style=\"font-weight: 400;\">Machine Learning<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/unit42.paloaltonetworks.jp\/tag\/wildfire-ja\/\"><span style=\"font-weight: 400;\">WildFire<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/unit42.paloaltonetworks.jp\/tag\/net-framework-ja\/\"><span style=\"font-weight: 400;\">.NET Framework<\/span><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><a id=\"post-125847-_6nnkp0dyyjyp\"><\/a>DoubleZero Wiper\u3068\u306f<\/h2>\n<p>DoubleZero Wiper\u306f2022\u5e743\u6708\u306b\u30a6\u30af\u30e9\u30a4\u30ca\u306eCERT\u304c\u516c\u958b\u3057\u305f\u30ef\u30a4\u30d1\u30fc\u3067\u3059\u3002<a href=\"https:\/\/www.cisa.gov\/uscert\/ncas\/analysis-reports\/ar22-115a\">HermeticWiper<\/a>\u3001<a href=\"https:\/\/www.cisa.gov\/uscert\/ncas\/analysis-reports\/ar22-115b\">IsaacWiper<\/a>\u3001<a href=\"https:\/\/www.cisa.gov\/uscert\/ncas\/analysis-reports\/ar22-115c\">CaddyWiper<\/a>\u306a\u3069\u3001\u6570\u591a\u3042\u308b\u30ef\u30a4\u30d1\u30fc\u306e1\u3064\u3067\u3001\u540c\u56fd\u304c\u6a19\u7684\u3068\u306a\u3063\u3066\u3044\u305f\u3088\u3046\u3067\u3059\u3002<\/p>\n<p>DoubleZero\u306fC#\u3067\u5b9f\u88c5\u3055\u308c\u3001\u5e7e\u91cd\u306b\u3082\u96e3\u8aad\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30ef\u30a4\u30d1\u30fc\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5178\u578b\u7684\u306a\u975e\u53ef\u9006\u7684\u304b\u3064\u7834\u58ca\u7684\u306a\u52d5\u4f5c\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<ul>\n<li>\u5bfe\u8c61\u30db\u30b9\u30c8\u4e0a\u3067\u6700\u9ad8\u306e\u7279\u6a29\u3092\u596a\u53d6\u3059\u308b<\/li>\n<li>\u5404\u30dc\u30ea\u30e5\u30fc\u30e0\u304b\u3089\u3059\u3079\u3066\u306e\u6a19\u7684\u3068\u306a\u308b\u30d5\u30a1\u30a4\u30eb\u3092\u3042\u308b\u3060\u3051\u63a2\u3057\u51fa\u3059<\/li>\n<li>\u5bfe\u8c61\u30d5\u30a1\u30a4\u30eb\u3084\u30c7\u30a3\u30b9\u30af\u30dc\u30ea\u30e5\u30fc\u30e0\u3092\u77ed\u6642\u9593\u3067\u7834\u58ca\u3059\u308b<\/li>\n<\/ul>\n<p>HermeticWiper\u306a\u3069\u306e\u30ef\u30a4\u30d1\u30fc\u304cMBR (Master Boot Record)\u3084GPT (GUID\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30c6\u30fc\u30d6\u30eb)\u3092\u7834\u58ca\u3059\u308b\u306e\u3068\u306f\u7570\u306a\u308a\u3001DoubleZero\u306f\u9078\u3093\u3060\u30d5\u30a1\u30a4\u30eb\u306e\u5148\u982d4,096\u30d0\u30a4\u30c8\u306e\u307f\u3092\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u30c9\u30e9\u30a4\u30d0\u3067\u30ef\u30a4\u30d7(\u6d88\u53bb)\u3057\u307e\u3059\u3002\u79c1\u305f\u3061\u306f\u672c\u7a3f\u3067\u306f\u3053\u306e\u7279\u5b9a.NET \u30b5\u30f3\u30d7\u30eb\u306e\u7279\u5fb4\u91cf\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306e\u307f\u3092\u53d6\u308a\u6271\u3044\u307e\u3059\u3002Splunk\u306b\u3088\u308b\u8a18\u4e8b\u306f\u3001<a href=\"https:\/\/www.splunk.com\/en_us\/blog\/security\/threat-update-doublezero-destructor.html\">\u540c\u30ef\u30a4\u30d1\u30fc\u30b5\u30f3\u30d7\u30eb\u306e\u3088\u308a\u8a73\u7d30\u306a\u6280\u8853\u7684\u5206\u6790<\/a>\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<table style=\"width: 96.1356%;\">\n<tbody>\n<tr>\n<td style=\"width: 11.4332%; background-color: #a8a2a2;\"><b>SHA256<\/b><\/td>\n<td style=\"width: 208.213%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">3b2e708eaa4744c76a633391cf2c983f4a098b46436525619e5ea44e105355fe<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 11.4332%; background-color: #a8a2a2;\"><b>\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba<\/b><\/td>\n<td style=\"width: 208.213%;\"><span style=\"font-weight: 400;\">419.50KB<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><a id=\"post-125847-_utu6bfuekheo\"><\/a>PE\u30d5\u30a1\u30a4\u30eb\u306e\u69cb\u9020\u3092\u8abf\u3079\u308b<\/h2>\n<p>\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306e\u9593\u3067\u306f\u9577\u5e74\u3001Microsoft Windows\u306ePortable Executable(PE)\u30de\u30eb\u30a6\u30a7\u30a2\u306e\u691c\u51fa\u306bPE\u306e\u30d5\u30a1\u30a4\u30eb\u69cb\u9020\u3092\u4f7f\u3046\u306e\u304c\u4e00\u822c\u7684\u3067\u3057\u305f\u3002\u3053\u306e\u6226\u8853\u306e\u80cc\u666f\u306b\u306f\u300c\u540c\u4e00\u30de\u30eb\u30a6\u30a7\u30a2\u30d5\u30a1\u30df\u30ea\u306e\u4e9c\u7a2e\u306f\u30d5\u30a1\u30a4\u30eb\u69cb\u9020\u304c\u4f3c\u308b\u50be\u5411\u304c\u3042\u308b\u300d\u3068\u3044\u3046\u8003\u3048\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u3082\u30d5\u30a1\u30a4\u30eb\u69cb\u9020\u306b\u3082\u3068\u3065\u3044\u3066PE\u30de\u30eb\u30a6\u30a7\u30a2\u3092\u691c\u51fa\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3053\u308c\u307e\u3067\u306f\u3001PE\u30d8\u30c3\u30c0\u306e\u7279\u5fb4\u3001\u30a4\u30f3\u30dd\u30fc\u30c8\u3001\u30bb\u30af\u30b7\u30e7\u30f3\u306e\u5c5e\u6027\u3092\u4f7f\u3063\u3066\u3001\u65e2\u77e5\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u306e\u7279\u5fb4\u3092\u8a8d\u8b58\u3057\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>.NET PE\u30d5\u30a1\u30a4\u30eb\u69cb\u9020\u306fPE\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u30d9\u30fc\u30b9\u306b\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u306e\u6a5f\u80fd\u306e\u591a\u304f\u306f.NET\u7279\u6709\u306e\u69cb\u9020\u5185\u306b\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001.NET\u306e\u69cb\u9020\u7684\u5c5e\u6027\u306b\u3064\u3044\u3066\u6df1\u304f\u6398\u308a\u4e0b\u3052\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h3><a id=\"post-125847-_dtmbwaij5r6d\"><\/a>.NET\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u90e8\u3092\u898b\u308b<\/h3>\n<p>.NET\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306f2002\u5e74\u306b\u5c0e\u5165\u3055\u308c\u3001\u307b\u3068\u3093\u3069\u306eMicrosoft Windows\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u5229\u7528\u53ef\u80fd\u3067\u3059\u3002\u3053\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u304a\u304b\u3052\u3067\u3001\u958b\u767a\u8005\u306f\u305d\u306e\u5f37\u529b\u306a\u7d44\u307f\u8fbc\u307f\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3084\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3001\u6697\u53f7\u5316\u306a\u3069\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u4f55\u3082\u3057\u306a\u304f\u3066\u3082\u5229\u7528\u53ef\u80fd\u306a\u72b6\u614b\u306b\u306a\u3063\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u304c\u3001\u30b7\u30b9\u30c6\u30e0\u7ba1\u7406\u8005\u306b\u3068\u3063\u3066\u3082\u30de\u30eb\u30a6\u30a7\u30a2\u4f5c\u8005\u306b\u3068\u3063\u3066\u3082\u540c\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u9b45\u529b\u7684\u306a\u3082\u306e\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3055\u3048\u5229\u7528\u53ef\u80fd\u306a\u72b6\u614b\u306b\u306a\u3063\u3066\u3044\u308c\u3070\u3001Microsoft Windows\u306ePE\u30ed\u30fc\u30c0\u30fc\u306f.NET\u30b5\u30f3\u30d7\u30eb\u3092\u30ed\u30fc\u30c9\u3057\u3066\u5b9f\u884c\u3059\u308b\u65b9\u6cd5\u3092\u3059\u3067\u306b\u77e5\u3063\u3066\u3044\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001.NET\u30a2\u30bb\u30f3\u30d6\u30ea\u304cPE\u30d5\u30a1\u30a4\u30eb\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u518d\u5229\u7528\u3059\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u30b3\u30fc\u30c9\u751f\u6210\u306e\u969b\u3001.NET\u4e92\u63db\u306e\u8a00\u8a9e\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306f\u3001\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306b\u4f9d\u5b58\u3057\u306a\u3044\u5171\u901a\u4e2d\u9593\u8a00\u8a9e(Common Intermediate Language: CIL)\u306e\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u307e\u3059\u3002<span style=\"font-family: 'courier new', courier, monospace;\">Cor20<\/span>\u30d8\u30c3\u30c0\u3092\u53c2\u7167\u3059\u308b\u305f\u3081\u306e\u7279\u5225\u306a.NET <span style=\"font-family: 'courier new', courier, monospace;\">IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR<\/span>\u306f\u3001\u30c7\u30fc\u30bf\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u5b58\u5728\u3057\u307e\u3059(\u56f31\u53c2\u7167)\u3002<span style=\"font-family: 'courier new', courier, monospace;\">Cor20<\/span>\u30d8\u30c3\u30c0(\u5225\u540dCLR\u30d8\u30c3\u30c0)\u306b\u306f\u3001\u30d0\u30fc\u30b8\u30e7\u30f3\u60c5\u5831\u3084\u30ea\u30bd\u30fc\u30b9\u60c5\u5831\u3001\u30e1\u30bf\u30c7\u30fc\u30bf\u30d8\u30c3\u30c0\u306e\u4f4d\u7f6e\u306a\u3069\u3001.NET\u7279\u6709\u306e\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u30ea\u30bd\u30fc\u30b9\u3001\u30b9\u30c8\u30ea\u30fc\u30e0\u3001\u578b\u53c2\u7167\u3001\u30e1\u30bd\u30c3\u30c9\u3001CIL\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3001\u5916\u90e8\u30a2\u30bb\u30f3\u30d6\u30ea\u306e\u4f7f\u7528\u72b6\u6cc1\u306a\u3069\u306f\u3001\u3059\u3079\u3066\u30e1\u30bf\u30c7\u30fc\u30bf\u306b\u8a18\u9332\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3088\u308a\u8a73\u7d30\u306a\u8aac\u660e\u306f<a href=\"https:\/\/unit42.paloaltonetworks.jp\/dotnetfile\/\">dotnetfile\u306e\u8a18\u4e8b<\/a>\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<figure id=\"attachment_125820\" aria-describedby=\"caption-attachment-125820\" style=\"width: 660px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/11\/word-image-52-ja-1.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-125820 size-full lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/11\/word-image-52-ja-1.png\" alt=\".NET\u30d5\u30a1\u30a4\u30eb\u306e\u69cb\u9020\u306e\u6982\u8981\u56f3\u3002MZ\u30d8\u30c3\u30c0\u3001PE\u30d8\u30c3\u30c0\u3001\u30c7\u30fc\u30bf\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3001Cor20\u30d8\u30c3\u30c0\u3001\u30e1\u30bf\u30c7\u30fc\u30bf\u30d8\u30c3\u30c0\u3001\u30b9\u30c8\u30ec\u30fc\u30b8\u30b9\u30c8\u30ea\u30fc\u30e0\u3001CIL\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3092\u542b\u3080\u30c6\u30ad\u30b9\u30c8\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u8868\u793a \" width=\"660\" height=\"860\" \/><\/a><figcaption id=\"caption-attachment-125820\" class=\"wp-caption-text\">\u56f31. .NET\u30d5\u30a1\u30a4\u30eb\u306e\u69cb\u9020\u306e\u6982\u8981\u56f3<\/figcaption><\/figure>\n<p>\u4f9d\u5b58\u30e9\u30a4\u30d6\u30e9\u30ea\u3084API\u304c\u30a4\u30f3\u30dd\u30fc\u30c8\u30c6\u30fc\u30d6\u30eb\u306b\u3042\u308b\u591a\u304f\u306ePE\u30d5\u30a1\u30a4\u30eb\u3068\u306f\u7570\u306a\u308a\u3001.NET\u30d5\u30a1\u30a4\u30eb\u306e\u30a4\u30f3\u30dd\u30fc\u30c8\u30c6\u30fc\u30d6\u30eb\u306b\u306f\u5358\u4e00\u30e2\u30b8\u30e5\u30fc\u30eb(<span style=\"font-family: 'courier new', courier, monospace;\">mscoree.dll<\/span>)\u3068\u5358\u4e00\u30a4\u30f3\u30dd\u30fc\u30c8\u95a2\u6570<span style=\"font-family: 'courier new', courier, monospace;\">(<\/span>\u5b9f\u884c\u30d5\u30a1\u30a4\u30eb\u3067\u306f<span style=\"font-family: 'courier new', courier, monospace;\">_CorExeMain<\/span>\u3001\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u30ed\u30fc\u30c9\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u306f<span style=\"font-family: 'courier new', courier, monospace;\">_CorDllMain<\/span>)\u3060\u3051\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u30ea\u30bd\u30fc\u30b9\u306f<span style=\"font-family: 'courier new', courier, monospace;\">.rsrc<\/span>\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u306a\u304f.NET\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u30b9\u30c8\u30ea\u30fc\u30e0\u5185\u306b\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>PE\u30d8\u30c3\u30c0\u306e\u30a8\u30f3\u30c8\u30ea\u30dd\u30a4\u30f3\u30c8\u306f<span style=\"font-family: 'courier new', courier, monospace;\">mscoree.dll<\/span>\u306e<span style=\"font-family: 'courier new', courier, monospace;\">_CorExeMain<\/span>\u306a\u3044\u3057<span style=\"font-family: 'courier new', courier, monospace;\">_CorDllMain<\/span>\u3092\u6307\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u5b9f\u969b\u306e\u30a8\u30f3\u30c8\u30ea\u30dd\u30a4\u30f3\u30c8\u306f<span style=\"font-family: 'courier new', courier, monospace;\">Cor20<\/span>\u30d8\u30c3\u30c0\u5185\u306b\u898b\u3064\u304b\u308a\u307e\u3059(\u56f32)\u3002\u3057\u305f\u304c\u3063\u3066\u3001PE\u30de\u30eb\u30a6\u30a7\u30a2\u30d5\u30a1\u30a4\u30eb\u306e\u8b58\u5225\u306b\u3082\u3063\u3068\u3082\u6709\u7528\u306a\u5c5e\u6027\u306e\u4e00\u90e8\u306f.NET\u30de\u30eb\u30a6\u30a7\u30a2\u306b\u3064\u3044\u3066\u306f\u3042\u307e\u308a\u624b\u304c\u304b\u308a\u3092\u304f\u308c\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_125822\" aria-describedby=\"caption-attachment-125822\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/11\/word-image-53-ja.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-125822 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/11\/word-image-53-ja.png\" alt=\"Cor20(CLR)\u30d8\u30c3\u30c0\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0\u3001\u30e1\u30bf\u30c7\u30fc\u30bf\u30c6\u30fc\u30d6\u30eb\u3092\u5c55\u958b\u3057\u305f\u56f3\" width=\"900\" height=\"551\" \/><\/a><figcaption id=\"caption-attachment-125822\" class=\"wp-caption-text\">\u56f32. .NET\u7279\u6709\u306e\u69cb\u9020\u4f53\u3068\u4e2d\u306b\u4fdd\u6301\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf<\/figcaption><\/figure>\n<p>\u30e1\u30bf\u30c7\u30fc\u30bf\u30c6\u30fc\u30d6\u30eb\u5185\u306b\u306f\u3001Module\u3001MethodDef\u3001Assembly\u306a\u3069\u306e<a href=\"https:\/\/www.ntcore.com\/files\/dotnetformat.htm#MetaTables\">\u30c6\u30fc\u30d6\u30eb\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059<\/a>\u3002PE\u30d5\u30a1\u30a4\u30eb\u306e\u69cb\u9020\u3060\u3051\u3092\u8abf\u3079\u308b\u5834\u5408\u3068\u6bd4\u3079\u3001.NET\u306e\u30d5\u30a1\u30a4\u30eb\u69cb\u9020\u3092\u8abf\u3079\u308c\u3070\u3001\u5f53\u8a72\u30d5\u30a1\u30a4\u30eb\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u3082\u3063\u3068\u305f\u304f\u3055\u3093\u5f97\u3089\u308c\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u79c1\u305f\u3061\u306f\u3001.NET\u306e\u6a5f\u68b0\u5b66\u7fd2\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306b\u4e00\u822c\u7684\u306aPE\u306e\u7279\u5fb4\u91cf\u3060\u3051\u3092\u4f7f\u3046\u306e\u3067\u306f\u306a\u304f\u3001\u3068\u304f\u306b.NET\u30b5\u30f3\u30d7\u30eb\u7fa4\u306e\u69cb\u9020\u3092\u30d1\u30fc\u30b9\u3057\u3066\u5f97\u3089\u308c\u305f\u30c7\u30fc\u30bf\u3092\u8ffd\u52a0\u3057\u307e\u3057\u305f\u3002\u3053\u3046\u3057\u3066\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3057\u305f\u7279\u5fb4\u91cf\u306f\u3001\u5f0a\u793e\u306e\u6a5f\u68b0\u5b66\u7fd2\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306e\u54c1\u8cea\u5411\u4e0a\u306b\u8ca2\u732e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-125847-_hskbb4vl9kdn\"><\/a>.NET\u30de\u30eb\u30a6\u30a7\u30a2\u691c\u51fa\u306b\u6a5f\u68b0\u5b66\u7fd2\u3092\u5fdc\u7528\u3059\u308b<\/h2>\n<p>\u79c1\u305f\u3061\u306f\u3001\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u306b\u3001.NET\u30b5\u30f3\u30d7\u30eb\u306ePE\u30d5\u30a1\u30a4\u30eb\u69cb\u9020\u3001.NET\u30d5\u30a1\u30a4\u30eb\u69cb\u9020\u3001\u305d\u306e\u307b\u304b\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u7279\u5fb4\u3092\u5b66\u7fd2\u3057\u305f\u30ab\u30b9\u30bf\u30e0\u7279\u5fb4\u91cf\u306b\u3064\u3044\u3066\u306e\u5b66\u7fd2\u3092\u3055\u305b\u307e\u3057\u305f(\u56f33)\u3002<\/p>\n<p>.NET\u306f\u9867\u5ba2\u74b0\u5883\u3067\u983b\u7e41\u306b\u4f7f\u308f\u308c\u3066\u3044\u308b\u30d5\u30a1\u30a4\u30eb\u30bf\u30a4\u30d7\u306e\u305f\u3081\u3001\u652f\u969c\u3092\u304d\u305f\u3059\u3088\u3046\u306a\u8aa4\u691c\u51fa\u306e\u767a\u751f\u306b\u5099\u3048\u3001\u77ed\u6642\u9593\u3067\u5bfe\u5fdc\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306f\u3053\u306e\u30e2\u30c7\u30eb\u306e\u6a5f\u80fd\u3092\u3088\u304f\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3057\u3001\u4e88\u6e2c\u306f\u30ea\u30d0\u30fc\u30b9\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u304c\u53ef\u80fd\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>.NET\u30d5\u30a1\u30a4\u30eb\u306f\u3042\u307e\u308a\u306b\u3082\u3042\u308a\u3075\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u826f\u6027\u30b5\u30f3\u30d7\u30eb\u3068\u60aa\u6027\u30b5\u30f3\u30d7\u30eb\u306e\u5206\u5e03\u306f\u975e\u5e38\u306b\u30a2\u30f3\u30d0\u30e9\u30f3\u30b9\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u79c1\u305f\u3061\u304c\u5b66\u7fd2\u3055\u305b\u305f\u30e2\u30c7\u30eb\u306f\u3001\u691c\u51fa\u7cbe\u5ea6\u3092\u7dad\u6301\u3057\u3064\u3064\u3001\u8aa4\u691c\u51fa\u7387\u306f\u6975\u3081\u3066\u4f4e\u304f\u6291\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_125824\" aria-describedby=\"caption-attachment-125824\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/11\/word-image-54-ja.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-125824 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/11\/word-image-54-ja.png\" alt=\"\u691c\u51fa\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306e\u6982\u8981\u56f3\u3002\u30b5\u30f3\u30d7\u30eb\u63a1\u53d6\u3001\u7279\u5fb4\u91cf\u62bd\u51fa\u3001\u30e2\u30c7\u30eb\u306e\u5b66\u7fd2\u30fb\u8a55\u4fa1\u3067\u6700\u7d42\u7684\u306a\u30e2\u30c7\u30eb\u3092\u307f\u3061\u3073\u304f\" width=\"900\" height=\"506\" \/><\/a><figcaption id=\"caption-attachment-125824\" class=\"wp-caption-text\">\u56f33. \u691c\u51fa\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306e\u6982\u8981<\/figcaption><\/figure>\n<h2><a id=\"post-125847-_6tignwr73ic\"><\/a>DoubleZero Wiper\u3092\u691c\u51fa\u3059\u308b<\/h2>\n<p>\u3053\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u306e\u30b5\u30f3\u30d7\u30eb\u306f\u307b\u304b\u306e.NET\u5b9f\u884c\u30d5\u30a1\u30a4\u30eb\u540c\u69d8\u3001<span style=\"font-family: 'courier new', courier, monospace;\">mscoree.dll<\/span>\u306e<span style=\"font-family: 'courier new', courier, monospace;\">_CorExeMain<\/span>\u3068\u3044\u3046\u5358\u4e00\u306e\u30a4\u30f3\u30dd\u30fc\u30c8\u3092\u6301\u3061\u307e\u3059\u3002\u3053\u308c\u306b\u306f<span style=\"font-family: 'courier new', courier, monospace;\">.text<\/span>\u30bb\u30af\u30b7\u30e7\u30f3\u3068<span style=\"font-family: 'courier new', courier, monospace;\">.reloc<\/span>\u30bb\u30af\u30b7\u30e7\u30f3\u306e\u307f\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u306f\u3059\u3079\u3066PE\u30d5\u30a1\u30a4\u30eb\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u56fa\u6709\u3067\u3001\u305d\u306e\u30a8\u30f3\u30c8\u30ed\u30d4\u30fc\u306f\u304b\u306a\u308a\u4f4e\u3081\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306ePE\u69cb\u9020\u304b\u3089\u5b66\u7fd2\u3067\u304d\u308b\u3053\u3068\u306f\u3042\u307e\u308a\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>CIL\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u306f\u3001\u30d1\u30bf\u30fc\u30f3\u30d9\u30fc\u30b9\u691c\u51fa\u306b\u4e0d\u53ef\u6b20\u306e\u6587\u5b57\u5217\u30ea\u30bd\u30fc\u30b9\u3092\u96a0\u3059\u305f\u3081\u306b\u96e3\u8aad\u5316\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u5b9f\u969b\u306e\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u9593\u306b\u30ac\u30d9\u30fc\u30b8\u30b3\u30fc\u30c9\u3092\u6df7\u305c\u8fbc\u3093\u3060\u308a\u3001\u5236\u5fa1\u30d5\u30ed\u30fc\u3092\u5e73\u5766\u5316\u3057\u305f\u308a\u3057\u3066\u30b3\u30fc\u30c9\u3092\u8ffd\u3044\u3065\u3089\u304f\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u3067\u3082\u3001\u9006\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305f\u30b3\u30fc\u30c9\u306b\u5b58\u5728\u3059\u308b\u30a4\u30f3\u30dd\u30fc\u30c8\u30e9\u30a4\u30d6\u30e9\u30ea\u3084\u95a2\u9023\u3059\u308bAPI\u547c\u3073\u51fa\u3057\u3092\u89b3\u5bdf\u3059\u308c\u3070\u3001\u3053\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u306e\u76ee\u7684\u306b\u3064\u3044\u3066\u591a\u304f\u306e\u3053\u3068\u304c\u8aad\u307f\u53d6\u308c\u307e\u3059\u3002<\/p>\n<p><span style=\"font-family: 'courier new', courier, monospace;\">System.DirectoryServices.ActiveDirectory<\/span>\u3084<span style=\"font-family: 'courier new', courier, monospace;\">System.Security.AccessControl<\/span>\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u3053\u3068\u304b\u3089\u3001Active Directory\u3084\u30d5\u30a1\u30a4\u30eb\u306e\u30a2\u30af\u30bb\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u5c5e\u6027\u3068\u3084\u308a\u3068\u308a\u3059\u308b\u610f\u56f3\u304c\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<p><span style=\"font-family: 'courier new', courier, monospace;\">System.Text.RegularExpressions<\/span>\u304c\u6b63\u898f\u8868\u73fe\u306e\u95a2\u6570\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u7279\u5b9a\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u30d1\u30bf\u30fc\u30f3\u691c\u7d22\u3059\u308b\u3068\u304d\u306b\u4f7f\u308f\u308c\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u60aa\u6027\u30b3\u30fc\u30c9\u306e\u5229\u7528\u3092\u3082\u3063\u3068\u3082\u9855\u8457\u306b\u793a\u3059\u6307\u6a19\u306f\u30a2\u30f3\u30de\u30cd\u30fc\u30b8DLL\u95a2\u6570\u306e\u547c\u3073\u51fa\u3057\u3067\u3059\u3002<a href=\"https:\/\/learn.microsoft.com\/ja-jp\/dotnet\/standard\/native-interop\/pinvoke\">\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u547c\u3073\u51fa\u3057 (P\/Invoke)<\/a>\u3092\u4f7f\u3046\u3068.NET\u306e\u30de\u30cd\u30fc\u30b8\u30b3\u30fc\u30c9\u304b\u3089\u30a2\u30f3\u30de\u30cd\u30fc\u30b8\u95a2\u6570\u3092\u547c\u3073\u51fa\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u4f4e\u30ec\u30d9\u30ebAPI\u306e\u76f4\u63a5\u547c\u3073\u51fa\u3057\u306f\u3001\u30b5\u30f3\u30c9\u30dc\u30c3\u30af\u30b9\u306b\u3088\u308bAPI\u30d5\u30c3\u30af\u3092\u56de\u907f\u3059\u308b\u89e3\u6790\u5bfe\u7b56\u6280\u8853\u3068\u3057\u3066\u3088\u304f\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u306f\u4ee5\u4e0b\u306e\u30a2\u30f3\u30de\u30cd\u30fc\u30b8API\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">ntdll.ntopenfile<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">ntdll.ntfscontrolfile<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">ntdll.rtlntstatustodoserror<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">ntdll.rtladjustprivilege<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">kernel32.closehandle<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">kernel32.getfilesizeex<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">kernel32.getlasterror<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">user32.exitwindowsex<\/span><\/li>\n<\/ul>\n<p>\u307b\u3068\u3093\u3069\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3067\u306f\u3001.NET\u30e9\u30f3\u30bf\u30a4\u30e0\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u3053\u308c\u3089\u3068\u540c\u7b49\u306e\u3053\u3068\u304c\u3067\u304d\u308b\u30de\u30cd\u30fc\u30b8\u95a2\u6570\u304c\u3042\u308b\u306e\u3067\u305d\u308c\u3089\u3092\u4f7f\u3048\u3070\u3088\u3044\u306f\u305a\u3067\u3059\u304c\u3001\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u306f<span style=\"font-family: 'courier new', courier, monospace;\">ntdll.dll<\/span>\u5185\u306e\u30a2\u30f3\u30de\u30cd\u30fc\u30b8API\u306e\u4e00\u90e8\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u3088\u308a\u4f4e\u30ec\u30d9\u30eb\u3067\u306e\u52d5\u4f5c\u3092\u610f\u56f3\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u6a19\u7684\u3068\u306a\u308b\u30d5\u30a1\u30a4\u30eb\u3084\u6b63\u898f\u8868\u73fe\u306e\u30d1\u30bf\u30fc\u30f3\u306f\u610f\u5916\u306b\u3082\u5e73\u6587\u3067\u683c\u7d0d\u3055\u308c\u3066\u3044\u307e\u3059(\u56f34)\u3002\u8105\u5a01\u30a2\u30af\u30bf\u30fc\u306b\u3088\u308b\u3053\u306e\u6f5c\u5728\u7684\u306a\u30df\u30b9\u304b\u3089\u306f\u3001\u540c\u30b5\u30f3\u30d7\u30eb\u306e\u76ee\u7684\u306b\u95a2\u3059\u308b\u3055\u3089\u306b\u6df1\u3044\u6d1e\u5bdf\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_125825\" aria-describedby=\"caption-attachment-125825\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-125826 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/11\/word-image-55.png\" alt=\"\u30c7\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305f\u30b3\u30fc\u30c9\u30b9\u30cb\u30da\u30c3\u30c8\u3002\u6587\u5b57\u5217\u304c\u5e73\u6587\u3067\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\" width=\"900\" height=\"119\" \/><figcaption id=\"caption-attachment-125825\" class=\"wp-caption-text\">\u56f34. \u9006\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305f\u30b3\u30fc\u30c9\u30b9\u30cb\u30da\u30c3\u30c8\u306e\u4f8b\u3002\u6b63\u898f\u8868\u73fe\u3092\u4f7f\u3063\u3066\u6a19\u7684\u30d5\u30a1\u30a4\u30eb\u3092\u691c\u7d22\u3057\u3066\u3044\u308b<\/figcaption><\/figure>\n<p>\u96e3\u8aad\u5316\u306f\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001<span style=\"font-family: 'courier new', courier, monospace;\">ntdll.NtFsControlFile<\/span>\u306e\u547c\u3073\u51fa\u3057\u306b\u5bfe\u3059\u308b\u5f15\u6570<span style=\"font-family: 'courier new', courier, monospace;\">FsControlCode<\/span>\u306f<span style=\"font-family: 'courier new', courier, monospace;\">0x980c8 = FSCTL_SET_ZERO_DATA<\/span>\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3053\u308c\u304c\u3001\u30ef\u30a4\u30d1\u30fc\u304c<span style=\"font-family: 'courier new', courier, monospace;\">ntdll.NtOpenFile<\/span>\u3067\u958b\u3044\u305f\u6a19\u7684\u30d5\u30a1\u30a4\u30eb\u306b4K\u5206\u306eNull\u30d0\u30a4\u30c8\u3092\u66f8\u304d\u8fbc\u3080\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u3067\u306f\u3001\u7279\u6a29\u5b9a\u65709\u300117\u300118\u300119\u3092\u6307\u5b9a\u3057\u3066<span style=\"font-family: 'courier new', courier, monospace;\">ntdll.RtlAdjustPrivilege<\/span>\u3092\u8907\u6570\u56de\u547c\u3073\u51fa\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u7279\u6a29\u5b9a\u6570\u306f\u305d\u308c\u305e\u308c\u3001<span style=\"font-family: 'courier new', courier, monospace;\">SeTakeOwnershipPrivilege<\/span>\u3001<span style=\"font-family: 'courier new', courier, monospace;\">SeBackupPrivilege<\/span>\u3001<span style=\"font-family: 'courier new', courier, monospace;\">SeRestorePrivilege<\/span>\u3001<span style=\"font-family: 'courier new', courier, monospace;\">SeShutdownPrivilege<\/span>\u306b\u3042\u305f\u308a\u307e\u3059\u3002\u30ef\u30a4\u30d1\u30fc\u306f\u3053\u308c\u3089\u306e\u7279\u6a29\u3092\u4f7f\u3063\u3066\u6a19\u7684\u3068\u306a\u308b\u30d5\u30a1\u30a4\u30eb\u3092\u7834\u58ca\u3057\u3001\u3059\u3079\u3066\u306e\u30a2\u30af\u30b7\u30e7\u30f3\u304c\u7d42\u4e86\u3057\u305f\u5f8c\u306b\u30b7\u30b9\u30c6\u30e0\u3092\u518d\u8d77\u52d5\u3059\u308b\u6a29\u9650\u3092\u78ba\u4fdd\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>LockBit\u306e\u3088\u3046\u306a\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u3084HermeticWiper\u3068\u306f\u7570\u306a\u308a\u3001DoubleZero\u306f\u88ab\u5bb3\u3092\u53d7\u3051\u305f\u30d5\u30a1\u30a4\u30eb\u306e\u5fa9\u65e7\u306b\u5229\u7528\u3055\u308c\u3046\u308b\u30b7\u30e3\u30c9\u30a6\u30b3\u30d4\u30fc\u3092\u524a\u9664\u3057\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u3053\u306e\u30ef\u30a4\u30d1\u30fc\u306f<span style=\"font-family: 'courier new', courier, monospace;\">lsass<\/span>\u3068\u3044\u3046\u540d\u524d\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u3059\u3079\u3066\u7d42\u4e86\u3055\u305b\u307e\u3059\u3002<span style=\"font-family: 'courier new', courier, monospace;\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Local_Security_Authority_Subsystem_Service\">Lsass<\/a><\/span>\u306fWindows\u30b7\u30b9\u30c6\u30e0\u306b\u3068\u3063\u3066\u306f\u91cd\u8981\u306a\u306e\u3067\u3001\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u505c\u6b62\u3055\u305b\u308b\u3088\u3046\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u60aa\u610f\u306e\u3042\u308b\u3082\u306e\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u524d\u8ff0\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u7279\u5fb4\u306f\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u304c\u30b5\u30f3\u30d7\u30eb\u3092\u691c\u51fa\u3059\u308b\u624b\u304c\u304b\u308a\u3068\u306a\u308a\u307e\u3059\u3002\u96e3\u8aad\u5316\u306f\u60aa\u610f\u306e\u3042\u308b.NET\u30d5\u30a1\u30a4\u30eb\u306b\u306f\u3088\u304f\u898b\u3089\u308c\u307e\u3059\u304c\u3001\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u5834\u5408\u3001\u30a2\u30f3\u30de\u30cd\u30fc\u30b8API\u3092\u8907\u6570\u4f7f\u3063\u3066\u3044\u308b\u3053\u3068\u3001\u30bb\u30f3\u30b7\u30c6\u30a3\u30d6\u306a\u6a19\u7684\u30d1\u30b9\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u4f7f\u3063\u3066\u3044\u308b\u3053\u3068\u306a\u3069\u304c\u6f5c\u5728\u7684\u306a\u60aa\u6027\u5ea6\u306e\u6307\u6a19\u3068\u3057\u3066\u969b\u7acb\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><a 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href=\"https:\/\/www.paloaltonetworks.jp\/products\/secure-the-network\/wildfire\">WildFire<\/a>\u3084<a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/advanced-threat-prevention\">\u9ad8\u5ea6\u306a\u8105\u5a01\u9632\u5fa1<\/a>\u306a\u3069\u306e\u30af\u30e9\u30a6\u30c9\u578b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b5\u30fc\u30d3\u30b9\u3092\u6709\u52b9\u306b\u3057\u305f<a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/next-generation-firewall\">\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb<\/a>\u3068<a href=\"https:\/\/www.paloaltonetworks.jp\/cortex\/cortex-xdr\">Cortex XDR<\/a>\u306b\u3088\u308a.NET\u30de\u30eb\u30a6\u30a7\u30a2\u304b\u3089\u306e\u4fdd\u8b77\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-125847-_zaz82tm5wd9i\"><\/a>IoC<\/h2>\n<p><span style=\"font-family: 'courier new', courier, monospace;\">3b2e708eaa4744c76a633391cf2c983f4a098b46436525619e5ea44e105355fe<\/span><\/p>\n<h2><a 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