{"id":125540,"date":"2022-10-28T06:00:19","date_gmt":"2022-10-28T13:00:19","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=125540"},"modified":"2022-11-04T00:49:19","modified_gmt":"2022-11-04T07:49:19","slug":"guloader-variant-anti-analysis","status":"publish","type":"post","link":"https:\/\/unit42.paloaltonetworks.com\/ja\/guloader-variant-anti-analysis\/","title":{"rendered":"Guloader\u306e\u89e3\u6790\u5bfe\u7b56\u6280\u8853\u3092\u7834\u308b"},"content":{"rendered":"<h2><strong>\u6982\u8981<\/strong><\/h2>\n<p>Unit 42\u306e\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306f\u6700\u8fd1\u3001\u89e3\u6790\u5bfe\u7b56\u6280\u8853\u3067\u4fdd\u8b77\u3055\u308c\u305f\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u542b\u3080Guloader\u306e\u4e9c\u7a2e\u3092\u767a\u898b\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u4eba\u9593\u306e\u30a2\u30ca\u30ea\u30b9\u30c8\u3084\u30b5\u30f3\u30c9\u30dc\u30c3\u30af\u30b9\u306b\u3088\u308b\u30b5\u30f3\u30d7\u30eb\u51e6\u7406\u306e\u9045\u5ef6\u3092\u76ee\u7684\u3068\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u3053\u3046\u3057\u305f\u30b5\u30f3\u30d7\u30eb\u3092\u8fc5\u901f\u306b\u89e3\u6790\u3067\u304d\u308b\u3088\u3046\u3001Guloader\u30b5\u30f3\u30d7\u30eb\u306e\u96e3\u8aad\u5316\u3092\u89e3\u9664\u3059\u308b\u5b8c\u5168\u306a<a href=\"https:\/\/github.com\/pan-unit42\/public_tools\/blob\/master\/idapython-guloader-anti-analysis\/guloader_veh_anti_analysis_.py\">Python\u30b9\u30af\u30ea\u30d7\u30c8<\/a>\u3092\u516c\u958b\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>2022\u5e749\u6708\u4e0a\u65ec\u3001VirusTotal\u3067\u306e\u691c\u51fa\u7387\u304c\u4f4e\u3044Guloader\u306e\u4e9c\u7a2e\u304c\u898b\u3064\u304b\u308a\u307e\u3057\u305f\u3002Guloader(\u5225\u540dCloudEye)\u306f\u30012019\u5e7412\u6708\u521d\u8a8d\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0\u30fc\u3067\u3059\u3002<\/p>\n<p>\u3053\u306eGuloader\u30b5\u30f3\u30d7\u30eb\u304c\u4f7f\u3046\u5236\u5fa1\u30d5\u30ed\u30fc\u306e\u96e3\u8aad\u5316\u6280\u8853\u3092\u89e3\u6790\u3057\u3001\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u304c\u81ea\u52d5\u3067\u96e3\u8aad\u5316\u3092\u89e3\u9664\u3067\u304d\u308b\u3088\u3046\u3001<a href=\"https:\/\/hex-rays.com\/blog\/extending-ida-processor-modules-for-gdb-debugging\/\">IDA \u30d7\u30ed\u30bb\u30c3\u30b5\u30e2\u30b8\u30e5\u30fc\u30eb\u62e1\u5f35<\/a>\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3001<a href=\"https:\/\/unit42.paloaltonetworks.jp\/excel-add-ins-dridex-infection-chain\/\">Dridex<\/a>\u306a\u3069\u3001\u540c\u69d8\u306e\u89e3\u6790\u5bfe\u7b56\u6280\u8853\u3092\u7528\u3044\u308b\u30de\u30eb\u30a6\u30a7\u30a2\u30d5\u30a1\u30df\u30ea\u306b\u5bfe\u3057\u3066\u3082\u4f7f\u3048\u307e\u3059\u3002<\/p>\n<p>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/products\/secure-the-network\/wildfire\">WildFire<\/a>\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/advanced-threat-prevention\">\u9ad8\u5ea6\u306a\u8105\u5a01\u9632\u5fa1<\/a>\u306a\u3069\u306e<a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/security-subscriptions\">\u30af\u30e9\u30a6\u30c9\u914d\u4fe1\u578b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b5\u30fc\u30d3\u30b9<\/a>\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\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/cortex\/cortex-xdr\">Cortex XDR<\/a>\u306b\u3088\u308a\u3001\u540c\u69d8\u306e\u89e3\u6790\u5bfe\u7b56\u6280\u8853\u3092\u4f7f\u3046\u30de\u30eb\u30a6\u30a7\u30a2\u30d5\u30a1\u30df\u30ea\u304b\u3089\u306e\u4fdd\u8b77\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<table style=\"width: 92.8954%;\">\n<tbody>\n<tr>\n<td style=\"width: 48.9552%;\"><span style=\"font-weight: 400;\">\u95a2\u9023\u3059\u308bUnit 42\u306e\u30c8\u30d4\u30c3\u30af<\/span><\/td>\n<td style=\"width: 339.104%;\"><a href=\"https:\/\/unit42.paloaltonetworks.jp\/category\/malware-2-ja\/\"><span style=\"font-weight: 400;\">Malware<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/unit42.paloaltonetworks.jp\/tag\/anti-analysis-ja\/\"><span style=\"font-weight: 400;\">anti-analysis<\/span><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><a id=\"post-125540-_x3t9zbc6ntwi\"><\/a>\u76ee\u6b21<\/h2>\n<p><a href=\"#guloader-control-flow-obfuscation-technique\">Guloader\u306e\u5236\u5fa1\u30d5\u30ed\u30fc\u96e3\u8aad\u5316\u6280\u8853<\/a><br \/>\n<a href=\"#vectored-exception-handler-function\">\u653b\u6483\u30d9\u30af\u30c8\u30eb\u5316\u3055\u308c\u305f\u4f8b\u5916\u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u306e\u89e3\u6790<\/a><br \/>\n<a href=\"#ida-processor-module-extension\">IDA\u30d7\u30ed\u30bb\u30c3\u30b5\u30e2\u30b8\u30e5\u30fc\u30eb\u62e1\u5f35\u3092\u66f8\u304f<\/a><br \/>\n<a href=\"#malware-analysts-vs-malware-authors\">\u7d50\u8ad6: \u30de\u30eb\u30a6\u30a7\u30a2\u30a2\u30ca\u30ea\u30b9\u30c8\u5bfe\u30de\u30eb\u30a6\u30a7\u30a2\u4f5c\u8005<\/a><br \/>\n<a href=\"#indicators-of-compromise\">IoC<\/a><br \/>\n<a href=\"#additional-resources\">\u8ffd\u52a0\u30ea\u30bd\u30fc\u30b9<\/a><\/p>\n<h2><a id=\"guloader-control-flow-obfuscation-technique\"><\/a><strong>Guloader\u306e\u5236\u5fa1\u30d5\u30ed\u30fc\u96e3\u8aad\u5316\u6280\u8853<\/strong><\/h2>\n<p>\u61f8\u6848\u306eGuloader\u30b5\u30f3\u30d7\u30eb\u306f\u5236\u5fa1\u30d5\u30ed\u30fc\u306e\u96e3\u8aad\u5316\u6280\u8853\u3067\u81ea\u8eab\u306e\u6a5f\u80fd\u3092\u96a0\u3057\u3066\u691c\u51fa\u3092\u56de\u907f\u3057\u3066\u304a\u308a\u3001\u9759\u7684\u89e3\u6790\u3068\u52d5\u7684\u89e3\u6790\u306e\u4e21\u65b9\u306b\u652f\u969c\u3092\u304d\u305f\u3057\u307e\u3059\u3002<\/p>\n<p>\u307e\u305a\u306f\u3053\u306e\u8105\u5a01\u304c\u9759\u7684\u89e3\u6790\u3092\u59a8\u5bb3\u3059\u308b\u65b9\u6cd5\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3072\u3068\u3053\u3068\u3067\u8a00\u3048\u3070Guloader\u306f\u4f8b\u5916\u3092\u767a\u751f\u3055\u305b\u308bCPU\u547d\u4ee4\u3092\u4f7f\u3063\u3066\u9759\u7684\u89e3\u6790\u6642\u306e\u30b3\u30fc\u30c9\u3092\u8aad\u3081\u306a\u304f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Guloader\u30b5\u30f3\u30d7\u30eb\u304b\u3089\u30d1\u30c3\u30ab\u30fc\u306e\u30ec\u30a4\u30e4\u3092\u5265\u304e\u3068\u308b\u3068\u3001\u30b3\u30fc\u30c9\u304c\u96e3\u8aad\u5316\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<a href=\"https:\/\/hex-rays.com\/ida-pro\/\">IDA Pro<\/a>\u306a\u3069\u306e\u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\u3092\u7528\u3044\u308b\u3068\u3001\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u306f\u5168\u4f53\u306b<span style=\"font-family: 'courier new', courier, monospace;\">0xCC<\/span>\u30d0\u30a4\u30c8(\u3042\u308b\u3044\u306f<span style=\"font-family: 'courier new', courier, monospace;\">int3<\/span>\u547d\u4ee4)\u3092\u3070\u3089\u307e\u3044\u3066\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059(\u56f31\u53c2\u7167)\u3002<\/p>\n<p><span style=\"font-family: 'courier new', courier, monospace;\">0xCC<\/span>\u30d0\u30a4\u30c8\u306b\u7d9a\u304f\u306e\u306f\u30b8\u30e3\u30f3\u30af\u547d\u4ee4(\u89e3\u6790\u59a8\u5bb3\u3092\u610f\u56f3\u3057\u305f\u610f\u5473\u306e\u306a\u3044\u547d\u4ee4)\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30d0\u30a4\u30c8\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u3001\u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\u306e\u9006\u30a2\u30bb\u30f3\u30d6\u30eb\u30d7\u30ed\u30bb\u30b9\u3092\u6df7\u4e71\u3055\u305b\u3001\u9593\u9055\u3063\u305f\u9006\u30a2\u30bb\u30f3\u30d6\u30eb\u30ea\u30b9\u30c8\u3092\u751f\u6210\u3055\u305b\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_125515\" aria-describedby=\"caption-attachment-125515\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-125516 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/10\/word-image.gif\" alt=\"\u96e3\u8aad\u5316\u3055\u308c\u305f\u30b3\u30fc\u30c9\u3092\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u305f\u3068\u3053\u308d\u3002\u5168\u4f53\u306b0xCC\u30d0\u30a4\u30c8\u304c\u6563\u3089\u3070\u3081\u3066\u3042\u308b\" width=\"900\" height=\"501\" \/><figcaption id=\"caption-attachment-125515\" class=\"wp-caption-text\">\u56f31. \u96e3\u8aad\u5316\u3055\u308c\u305f\u30b3\u30fc\u30c9\u30d6\u30ed\u30c3\u30af<\/figcaption><\/figure>\n<p><span style=\"font-family: 'courier new', courier, monospace;\">0xCC<\/span>\u30d0\u30a4\u30c8\u306f\u4f8b\u5916<span style=\"font-family: 'courier new', courier, monospace;\"><em>EXCEPTION_BREAKPOINT<\/em><\/span><span style=\"font-family: 'courier new', courier, monospace;\">(0x80000003)<\/span>\u3092\u767a\u751f\u3055\u305b\u3066\u30d7\u30ed\u30bb\u30b9\u306e\u5b9f\u884c\u3092\u4e00\u6642\u505c\u6b62\u3055\u305b\u308bCPU\u547d\u4ee4\u3067\u3059\u3002CPU\u306f\u5236\u5fa1\u30d5\u30ed\u30fc\u3092\u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u306b\u6e21\u3057\u3066\u304b\u3089\u5b9f\u884c\u3092\u7d99\u7d9a\u3057\u307e\u3059\u3002\u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u306f\u3001\u547d\u4ee4\u30dd\u30a4\u30f3\u30bf\u3092\u6b63\u3057\u3044\u30a2\u30c9\u30ec\u30b9\u306b\u79fb\u52d5\u3055\u305b\u308b\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089<span style=\"font-family: 'courier new', courier, monospace;\">0xCC<\/span>\u30d0\u30a4\u30c8\u306e\u5b58\u5728\u304c\u539f\u56e0\u3067\u3001\u52d5\u7684\u89e3\u6790\u4e2d\u306b\u30c7\u30d0\u30c3\u30ac\u3092\u4f7f\u7528\u3059\u308b\u3068Guloader\u306e\u30b5\u30f3\u30d7\u30eb\u304c\u30af\u30e9\u30c3\u30b7\u30e5\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u30c7\u30d0\u30c3\u30ac\u306f<span style=\"font-family: 'courier new', courier, monospace;\">0xCC<\/span>\u30d0\u30a4\u30c8\u3092\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30d6\u30ec\u30fc\u30af\u30dd\u30a4\u30f3\u30c8\u3068\u3057\u3066\u633f\u5165\u3057\u3066\u30b5\u30f3\u30d7\u30eb\u306e\u5b9f\u884c\u3092\u505c\u6b62\u3055\u305b\u307e\u3059\u3002\u30c7\u30d0\u30c3\u30ac\u304c\u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u306e\u304b\u308f\u308a\u306b\u4f8b\u5916\u3092\u51e6\u7406\u3057\u307e\u3059\u3002<\/p>\n<p>\u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u306b\u4f55\u304c\u8d77\u3053\u3063\u3066\u3044\u308b\u306e\u304b\u3092\u7406\u89e3\u3059\u308b\u306b\u306f\u3001\u307e\u305a\u305d\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>Guloader\u306f<span style=\"font-family: 'courier new', courier, monospace;\">AddVectoredExceptionHandler<\/span>\u95a2\u6570\u3092\u4f7f\u3063\u3066\u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u3092\u767b\u9332\u3057\u307e\u3059(\u56f32\u53c2\u7167)\u3002<span style=\"font-family: 'courier new', courier, monospace;\">AddVectoredExceptionHandler<\/span>\u95a2\u6570\u306e\u7b2c2\u5f15\u6570\u306b\u306f\u3001\u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u6307\u5b9a\u3055\u308c\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_125517\" aria-describedby=\"caption-attachment-125517\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-125518 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/10\/word-image-41.png\" alt=\"\u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u306e\u767b\u9332\u306b\u4f7f\u7528\u3055\u308c\u308bAddVectoredExceptionHandler\u306e\u95a2\u6570\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u3002\" width=\"600\" height=\"148\" \/><figcaption id=\"caption-attachment-125517\" class=\"wp-caption-text\">\u56f32. AddVectoredExceptionHandler\u306e\u95a2\u6570\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7<\/figcaption><\/figure>\n<p>\u30c7\u30d0\u30c3\u30ac\u3092\u4f7f\u3063\u3066(\u56f33\u53c2\u7167)\u3001Guloader\u30b5\u30f3\u30d7\u30eb\u304c\u767b\u9332\u3057\u305f\u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u30a2\u30c9\u30ec\u30b9\u60c5\u5831\u304c\u3042\u308c\u3070\u305d\u308c\u306b\u5bfe\u5fdc\u3059\u308b\u30b3\u30fc\u30c9\u3092\u8abf\u3079\u3089\u308c\u307e\u3059\u3002\u3053\u3053\u3067\u6ce8\u76ee\u3057\u305f\u3044\u306e\u304c\u3001\u3053\u306e<span style=\"font-family: 'courier new', courier, monospace;\">ExceptionHandler<\/span>\u304c\u9806\u5e8f<span style=\"font-family: 'courier new', courier, monospace;\">1<\/span>\u3067\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306f\u3059\u306a\u308f\u3061\u3001\u3053\u308c\u304c\u6700\u521d\u306b\u547c\u3073\u51fa\u3055\u308c\u308b\u30cf\u30f3\u30c9\u30e9\u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_125519\" aria-describedby=\"caption-attachment-125519\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-125520 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/10\/word-image-42.png\" alt=\"Guloader\u306e\u30b5\u30f3\u30d7\u30eb\u304c\u767b\u9332\u3057\u305fAddVectoredExceptionHandler\u95a2\u6570\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u30c7\u30d0\u30c3\u30ac\u3067\u691c\u7d22\u3057\u305f\u3068\u3053\u308d\" width=\"900\" height=\"63\" \/><figcaption id=\"caption-attachment-125519\" class=\"wp-caption-text\">\u56f33. Guloader\u30b5\u30f3\u30d7\u30eb\u5185\u3067AddVectoredExceptionHandler\u95a2\u6570\u306e\u547c\u3073\u51fa\u3057\u3092\u30c7\u30d0\u30c3\u30b0<\/figcaption><\/figure>\n<h2><a id=\"vectored-exception-handler-function\"><\/a><strong>\u653b\u6483<\/strong><strong>\u30d9\u30af\u30c8\u30eb\u5316\u3055\u308c\u305f\u4f8b\u5916\u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u306e\u89e3\u6790<\/strong><\/h2>\n<p>\u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u306e\u89e3\u6790\u306f\u3001\u305d\u306e\u578b\u60c5\u5831\u306e\u9069\u7528\u304b\u3089\u59cb\u3081\u307e\u3059(\u56f34\u53c2\u7167)\u3002<\/p>\n<figure id=\"attachment_125521\" aria-describedby=\"caption-attachment-125521\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-125522 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/10\/word-image-43.png\" alt=\"\u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u306e\u30c7\u30fc\u30bf\u578b\u60c5\u5831\u3092\u8868\u793a\u3057\u305f\u3068\u3053\u308d\" width=\"600\" height=\"155\" \/><figcaption id=\"caption-attachment-125521\" class=\"wp-caption-text\">\u56f34. \u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u306e\u30c7\u30fc\u30bf\u578b\u306e\u60c5\u5831<\/figcaption><\/figure>\n<p>\u6b21\u306b\u3001\u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u304c\u4f7f\u30463\u3064\u306eWindows\u30c7\u30fc\u30bf\u69cb\u9020\u4f53(\u56f35)\u306e\u578b\u60c5\u5831\u3092\u9069\u7528\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_125523\" aria-describedby=\"caption-attachment-125523\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-125524 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/10\/word-image-44.png\" alt=\"\u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u306b\u9069\u7528\u3055\u308c\u308b3\u3064\u306eWindows\u30c7\u30fc\u30bf\u69cb\u9020\u4f53\u306e\u578b\u60c5\u5831\u3092\u8868\u793a\u3057\u305f\u3068\u3053\u308d\u3002\" width=\"900\" height=\"685\" \/><figcaption id=\"caption-attachment-125523\" class=\"wp-caption-text\">\u56f35. \u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u306b\u9069\u7528\u3055\u308c\u308b3\u3064\u306eWindows\u30c7\u30fc\u30bf\u69cb\u9020\u4f53\u306e\u578b\u60c5\u5831<\/figcaption><\/figure>\n<p>\u578b\u60c5\u5831\u3092\u9069\u7528\u3059\u308b\u3068\u3001<span style=\"font-family: 'courier new', courier, monospace;\">0xCC<\/span>\u30d0\u30a4\u30c8\u306b\u3088\u308b\u4f8b\u5916\u3092\u95a2\u6570\u304c\u3069\u306e\u3088\u3046\u306b\u51e6\u7406\u3057\u305f\u304b\u3092\u8abf\u3079\u3089\u308c\u307e\u3059\u3002\u56f36\u306b\u30cf\u30f3\u30c9\u30e9\u95a2\u6570<span style=\"font-family: 'courier new', courier, monospace;\">(Func_VectoredExceptionHandler<\/span>)\u3092\u9006\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305f\u3082\u306e\u3092\u30b3\u30e1\u30f3\u30c8\u4ed8\u304d\u3067\u793a\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_125525\" aria-describedby=\"caption-attachment-125525\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-125526 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/10\/word-image-45.png\" alt=\"\" width=\"900\" height=\"344\" \/><figcaption id=\"caption-attachment-125525\" class=\"wp-caption-text\">\u56f36. \u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u3092\u9006\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305f<\/figcaption><\/figure>\n<p>\u30cf\u30f3\u30c9\u30e9\u95a2\u6570\u306f\u307e\u305a\u30c7\u30d0\u30c3\u30b0\u5bfe\u7b56\u7528\u306e\u30c1\u30a7\u30c3\u30af\u3092\u884c\u3044\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30d6\u30ec\u30fc\u30af\u30dd\u30a4\u30f3\u30c8\u306a\u3044\u3057\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30d6\u30ec\u30fc\u30af\u30dd\u30a4\u30f3\u30c8\u304c\u898b\u3064\u304b\u308b\u3068\u5b9f\u884c\u3092\u7d42\u4e86\u3057\u307e\u3059\u3002\u6b21\u306b<span style=\"font-family: 'courier new', courier, monospace;\">0xCC<\/span>\u30d0\u30a4\u30c8\u306e\u6b21\u306e\u30d0\u30a4\u30c8\u3092<span style=\"font-family: 'courier new', courier, monospace;\">0xA9<\/span>\u3068XOR\u3057\u3066\u30c7\u30b3\u30fc\u30c9\u3057\u3001\u30aa\u30d5\u30bb\u30c3\u30c8\u5024\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\u6700\u5f8c\u306b\u3053\u306e\u30aa\u30d5\u30bb\u30c3\u30c8\u5024\u3092\u547d\u4ee4\u30dd\u30a4\u30f3\u30bf\u306b\u52a0\u7b97\u3057\u3066\u304b\u3089\u30b3\u30fc\u30c9\u306e\u5b9f\u884c\u3092\u518d\u958b\u3057\u307e\u3059\u3002\u30b3\u30fc\u30c9\u306e\u5b9f\u884c\u306f\u3001\u3053\u3046\u3057\u3066\u66f4\u65b0\u3057\u305f\u547d\u4ee4\u30dd\u30a4\u30f3\u30bf\u306e\u6307\u3059\u30a2\u30c9\u30ec\u30b9\u3067\u7d99\u7d9a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u96e3\u8aad\u5316\u306e\u3057\u304f\u307f\u3092\u7406\u89e3\u3059\u308c\u3070\u3001\u6709\u52b9\u306a\u547d\u4ee4\u3092\u8b58\u5225\u3057\u3066\u4e0d\u8981\u306a\u547d\u4ee4\u3092\u7834\u68c4\u3067\u304d\u307e\u3059(\u56f37\u53c2\u7167)\u3002<\/p>\n<figure id=\"attachment_125527\" aria-describedby=\"caption-attachment-125527\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-125528 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/10\/word-image-46.png\" alt=\"\u30b3\u30fc\u30c9\u30d6\u30ed\u30c3\u30af\u306b\u30e9\u30d9\u30eb\u3092\u4ed8\u3051\u308b\u3068\u6709\u52b9\u306a\u547d\u4ee4\u3092\u8b58\u5225\u3057\u3066\u4e0d\u8981\u306a\u547d\u4ee4\u3092\u7834\u68c4\u3067\u304d\u308b\" width=\"900\" height=\"546\" \/><figcaption id=\"caption-attachment-125527\" class=\"wp-caption-text\">\u56f37 \u30e9\u30d9\u30eb\u4ed8\u304d\u30b3\u30fc\u30c9\u30d6\u30ed\u30c3\u30af<\/figcaption><\/figure>\n<p>Guloader\u30b5\u30f3\u30d7\u30eb\u306e\u96e3\u8aad\u5316\u3092\u5b8c\u5168\u306b\u89e3\u9664\u3059\u308b\u306b\u306f\u3001\u3059\u3079\u3066\u306e<span style=\"font-family: 'courier new', courier, monospace;\">0xCC<\/span>\u30d0\u30a4\u30c8\u3092<span style=\"font-family: 'courier new', courier, monospace;\">JMP short<\/span>\u547d\u4ee4<span style=\"font-family: 'courier new', courier, monospace;\">(0xEB)<\/span>\u306b\u7f6e\u304d\u63db\u3048\u305f\u3046\u3048\u3067\u3001\u305d\u306e\u6b21\u306e\u30d0\u30a4\u30c8\u3092\u30c7\u30b3\u30fc\u30c9\u3055\u308c\u305f\u30aa\u30d5\u30bb\u30c3\u30c8\u5024\u306b\u7f6e\u304d\u63db\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089\u3059\u3079\u3066\u3092\u624b\u4f5c\u696d\u3067\u884c\u3046\u306e\u306f\u6642\u9593\u304c\u304b\u304b\u308b\u306e\u3067\u3001\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u96e3\u8aad\u5316\u89e3\u9664\u51e6\u7406\u3092\u81ea\u52d5\u5316\u3059\u308b<a href=\"https:\/\/hex-rays.com\/blog\/extending-ida-processor-modules-for-gdb-debugging\/\">IDA \u30d7\u30ed\u30bb\u30c3\u30b5\u30e2\u30b8\u30e5\u30fc\u30eb\u62e1\u5f35<\/a>\u306e\u66f8\u304d\u304b\u305f\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h2><a id=\"ida-processor-module-extension\"><\/a><strong>IDA\u30d7\u30ed\u30bb\u30c3\u30b5\u30e2\u30b8\u30e5\u30fc\u30eb\u62e1\u5f35\u3092\u66f8\u304f<\/strong><\/h2>\n<p>IDA\u30d7\u30ed\u30bb\u30c3\u30b5\u30e2\u30b8\u30e5\u30fc\u30eb\u62e1\u5f35\u3092\u4f7f\u3046\u3068\u3001IDA Pro\u306e\u9006\u30a2\u30bb\u30f3\u30d6\u30eb\u30ed\u30b8\u30c3\u30af\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u62e1\u5f35\u6a5f\u80fd\u306fPython\u3067\u66f8\u304b\u308c\u3066\u3044\u3066\u3001IDA Pro\u304c\u30b5\u30f3\u30d7\u30eb\u306e\u547d\u4ee4\u3092\u3069\u306e\u3088\u3046\u306b\u9006\u30a2\u30bb\u30f3\u30d6\u30eb\u3059\u308b\u304b\u3092\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u305f\u308a\u64cd\u4f5c\u3057\u305f\u308a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306ePython\u30b9\u30af\u30ea\u30d7\u30c8\u306f<span style=\"font-family: 'courier new', courier, monospace;\"><a href=\"https:\/\/www.hex-rays.com\/products\/ida\/support\/idapython_docs\/ida_idp.html#ida_idp.IDP_Hooks\">IDP_Hooks<\/a><\/span>\u30af\u30e9\u30b9\u306e<span style=\"font-family: 'courier new', courier, monospace;\"><a href=\"https:\/\/www.hex-rays.com\/products\/ida\/support\/idapython_docs\/ida_idp.html#ida_idp.IDP_Hooks.ev_ana_insn\">ev_ana_insn<\/a><\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u62e1\u5f35\u3057\u307e\u3059\u3002\u3053\u306e\u6a5f\u80fd\u62e1\u5f35\u306f\u6700\u521d\u306b\u3001\u73fe\u5728\u306e\u547d\u4ee4\u304c<span style=\"font-family: 'courier new', courier, monospace;\">0xCC<\/span>\u30d0\u30a4\u30c8\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u6b21\u306b\u3001<span style=\"font-family: 'courier new', courier, monospace;\">0xCC<\/span>\u30d0\u30a4\u30c8\u3092<span style=\"font-family: 'courier new', courier, monospace;\">JMP short<\/span>\u547d\u4ee4<span style=\"font-family: 'courier new', courier, monospace;\">(0xEB)<\/span>\u306b\u7f6e\u304d\u63db\u3048\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001\u6b21\u306e\u30d0\u30a4\u30c8\u3092\u30c7\u30b3\u30fc\u30c9\u3057\u305f\u30aa\u30d5\u30bb\u30c3\u30c8\u5024\u3067\u7f6e\u304d\u63db\u3048\u307e\u3059\u3002<\/p>\n<p>\u56f38\u306f\u3053\u306e\u96e3\u8aad\u5316\u306e\u89e3\u9664\u51e6\u7406\u3092\u5b9f\u88c5\u3057\u305fPython\u30b9\u30af\u30ea\u30d7\u30c8\u5185\u306e\u95a2\u6570\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_125529\" aria-describedby=\"caption-attachment-125529\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-125530 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/10\/word-image-47.png\" alt=\"\u30b5\u30f3\u30d7\u30eb\u306e\u96e3\u8aad\u5316\u3092\u89e3\u9664\u3059\u308b\u305f\u3081\u3001ev_ana_insn()\u3092\u62e1\u5f35\u3057\u305fPython\u30b9\u30af\u30ea\u30d7\u30c8\u5185\u306e\u95a2\u6570\u3002\" width=\"900\" height=\"311\" \/><figcaption id=\"caption-attachment-125529\" class=\"wp-caption-text\">\u56f38. ev_ana_insn()\u3092\u62e1\u5f35\u3057\u3066\u30b5\u30f3\u30d7\u30eb\u306e\u96e3\u8aad\u5316\u3092\u89e3\u9664<\/figcaption><\/figure>\n<p>Python\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u9069\u7528\u5f8c\u306fIDA Pro\u3067Guloader\u30b5\u30f3\u30d7\u30eb\u306e\u96e3\u8aad\u5316\u3092\u81ea\u52d5\u7684\u306b\u89e3\u9664\u3067\u304d\u307e\u3059(\u56f39\u53c2\u7167)\u3002<\/p>\n<figure id=\"attachment_125531\" aria-describedby=\"caption-attachment-125531\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-125532 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/10\/word-image-48.png\" alt=\"IDA Pro\u304cGuloader\u30b5\u30f3\u30d7\u30eb\u306e\u96e3\u8aad\u5316\u3092\u81ea\u52d5\u7684\u306b\u89e3\u9664\u3057\u305f\u3068\u3053\u308d\u3002Python\u30b9\u30af\u30ea\u30d7\u30c8\u9069\u7528\u524d(\u5de6)\u3068\u9069\u7528\u5f8c(\u53f3)\u306e\u30b3\u30fc\u30c9\" width=\"900\" height=\"441\" \/><figcaption id=\"caption-attachment-125531\" class=\"wp-caption-text\">\u56f39: \u96e3\u8aad\u5316\u3055\u308c\u305f\u30b3\u30fc\u30c9(\u5de6)\u3068\u96e3\u8aad\u5316\u3092\u89e3\u9664\u3057\u305f\u30b3\u30fc\u30c9(\u53f3)\u3002<\/figcaption><\/figure>\n<h2><a id=\"malware-analysts-vs-malware-authors\"><\/a><strong>\u7d50\u8ad6: \u30de\u30eb\u30a6\u30a7\u30a2\u30a2\u30ca\u30ea\u30b9\u30c8\u5bfe\u30de\u30eb\u30a6\u30a7\u30a2\u4f5c\u8005<\/strong><\/h2>\n<p>\u30de\u30eb\u30a6\u30a7\u30a2\u30a2\u30ca\u30ea\u30b9\u30c8\u304c\u51e6\u7406\u3059\u308b\u3055\u3044\u306b\u6642\u9593\u3084\u30ea\u30bd\u30fc\u30b9\u3092\u3068\u3089\u308c\u308b\u3088\u3046\u306b\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u4f5c\u8005\u306f\u81ea\u5206\u306e\u300c\u4f5c\u54c1\u300d\u306b\u3088\u304f\u96e3\u8aad\u5316\u6280\u8853\u3092\u4f7f\u3044\u307e\u3059\u3002\u305d\u3093\u306a\u5834\u5408\u3067\u3082\u3001\u672c\u7a3f\u306b\u89e3\u8aac\u3057\u305f\u624b\u9806\u3092\u7528\u3044\u308c\u3070\u3001Guloader\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u30b5\u30f3\u30d7\u30eb\u3092\u306f\u3058\u3081\u3001\u4f3c\u305f\u3088\u3046\u306a\u6280\u8853\u3092\u4f7f\u3046\u307b\u304b\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u30d5\u30a1\u30df\u30ea\u306e\u30b5\u30f3\u30d7\u30eb\u89e3\u6790\u306b\u5fc5\u8981\u306a\u6642\u9593\u3092\u6e1b\u3089\u305b\u307e\u3059\u3002<\/p>\n<p>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/products\/secure-the-network\/wildfire\">WildFire<\/a>\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/advanced-threat-prevention\">\u9ad8\u5ea6\u306a\u8105\u5a01\u9632\u5fa1<\/a>\u306a\u3069\u306e<a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/security-subscriptions\">\u30af\u30e9\u30a6\u30c9\u914d\u4fe1\u578b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b5\u30fc\u30d3\u30b9<\/a>\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\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/cortex\/cortex-xdr\">Cortex XDR<\/a>\u306b\u3088\u308a\u3001\u540c\u69d8\u306e\u89e3\u6790\u5bfe\u7b56\u6280\u8853\u3092\u4f7f\u3046\u30de\u30eb\u30a6\u30a7\u30a2\u30d5\u30a1\u30df\u30ea\u304b\u3089\u306e\u4fdd\u8b77\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><a id=\"indicators-of-compromise\"><\/a>IoC<\/h2>\n<p><span style=\"font-family: 'courier new', courier, monospace;\">SQ21002728.IMG<\/span>:<br \/>\nSHA256: <span style=\"font-family: 'courier new', courier, monospace;\">fb8e52ec2e9d21a30d7b4dee8721d890a4fbec48103a021e9c04dfb897b71060<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">SQ21002764<\/span><\/p>\n<p><span style=\"font-family: 'courier new', courier, monospace;\">SQ21002728.vbs<\/span>:<br \/>\nSHA256: <span style=\"font-family: 'courier new', courier, monospace;\">56cdfaa44070c2ad164bd1e7f26744a2ffe54487c2d53d3ae318d842c6f56178<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">SQ21002764<\/span><\/p>\n<h2><a id=\"additional-resources\"><\/a>\u8ffd\u52a0\u30ea\u30bd\u30fc\u30b9<\/h2>\n<ul>\n<li>Guloader\u30b5\u30f3\u30d7\u30eb\u306e\u96e3\u8aad\u5316\u3092\u89e3\u9664\u3059\u308b<a href=\"https:\/\/github.com\/pan-unit42\/public_tools\/blob\/master\/idapython-guloader-anti-analysis\/guloader_veh_anti_analysis_.py\">Python\u30b9\u30af\u30ea\u30d7\u30c8<\/a>\u306e\u5b8c\u5168\u7248\u3092\u516c\u958b\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><a href=\"https:\/\/unit42.paloaltonetworks.jp\/bazarloader-anti-analysis-techniques\/\">BazarLoader\u306e\u89e3\u6790\u5bfe\u7b56\u6280\u8853\u3092\u7834\u308b<\/a><\/li>\n<li><a href=\"https:\/\/unit42.paloaltonetworks.jp\/single-bit-trap-flag-intel-cpu\/\">1\u30d3\u30c3\u30c8\u3067\u30b5\u30f3\u30c9\u30dc\u30c3\u30af\u30b9\u3092\u56de\u907f\u3059\u308b\u30c8\u30e9\u30c3\u30d7\u30d5\u30e9\u30b0(TF)\u3068Lampion\u30de\u30eb\u30a6\u30a7\u30a2\u3067\u306e\u60aa\u7528\u4f8b<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981 Unit 42\u306e\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306f\u6700\u8fd1\u3001\u89e3\u6790\u5bfe\u7b56\u6280\u8853\u3067\u4fdd\u8b77\u3055\u308c\u305f\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u542b\u3080Guloader\u306e\u4e9c\u7a2e\u3092\u767a\u898b\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u4eba\u9593\u306e\u30a2\u30ca\u30ea\u30b9\u30c8\u3084\u30b5\u30f3\u30c9\u30dc\u30c3\u30af\u30b9\u306b\u3088\u308b\u30b5\u30f3\u30d7\u30eb\u51e6\u7406\u306e\u9045\u5ef6\u3092\u76ee\u7684\u3068\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u3053\u3046<\/p>\n","protected":false},"author":311,"featured_media":134322,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[4321,1974,4428],"tags":[5366,4767],"product_categories":[4346,4442,4444,4446,4448,4456],"coauthors":[1355],"class_list":["post-125540","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-threat-research","category-malware-ja","category-threat-research-ja","tag-anti-analysis","tag-guloader-ja","product_categories-advanced-threat-prevention","product_categories-advanced-threat-prevention-ja","product_categories-advanced-wildfire-ja","product_categories-cloud-delivered-security-services-ja","product_categories-cortex-xdr-ja","product_categories-next-generation-firewall-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>Guloader\u306e\u89e3\u6790\u5bfe\u7b56\u6280\u8853\u3092\u7834\u308b<\/title>\n<meta name=\"description\" content=\"\u89e3\u6790\u5bfe\u7b56\u6280\u8853\u3067\u4fdd\u8b77\u3055\u308c\u305fGuloader\u4e9c\u7a2e\u3092\u30b5\u30f3\u30d7\u30eb\u3068\u3057\u3066\u3001IDA\u30d7\u30ed\u30bb\u30c3\u30b5\u30e2\u30b8\u30e5\u30fc\u30eb\u62e1\u5f35\u3092\u4f7f\u3063\u3066\u81ea\u52d5\u3067\u96e3\u8aad\u5316\u3092\u89e3\u9664\u3057\u3066\u8fc5\u901f\u306b\u89e3\u6790\u3059\u308b\u624b\u9806\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002\u62e1\u5f35\u7528Python\u30b9\u30af\u30ea\u30d7\u30c8\u306fGitHub\u306b\u516c\u958b\u6e08\u307f\u3067\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\/guloader-variant-anti-analysis\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Guloader\u306e\u89e3\u6790\u5bfe\u7b56\u6280\u8853\u3092\u7834\u308b\" \/>\n<meta property=\"og:description\" content=\"\u89e3\u6790\u5bfe\u7b56\u6280\u8853\u3067\u4fdd\u8b77\u3055\u308c\u305fGuloader\u4e9c\u7a2e\u3092\u30b5\u30f3\u30d7\u30eb\u3068\u3057\u3066\u3001IDA\u30d7\u30ed\u30bb\u30c3\u30b5\u30e2\u30b8\u30e5\u30fc\u30eb\u62e1\u5f35\u3092\u4f7f\u3063\u3066\u81ea\u52d5\u3067\u96e3\u8aad\u5316\u3092\u89e3\u9664\u3057\u3066\u8fc5\u901f\u306b\u89e3\u6790\u3059\u308b\u624b\u9806\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002\u62e1\u5f35\u7528Python\u30b9\u30af\u30ea\u30d7\u30c8\u306fGitHub\u306b\u516c\u958b\u6e08\u307f\u3067\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/unit42.paloaltonetworks.com\/ja\/guloader-variant-anti-analysis\/\" \/>\n<meta property=\"og:site_name\" content=\"Unit 42\" \/>\n<meta property=\"article:published_time\" content=\"2022-10-28T13:00:19+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-11-04T07:49:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2024\/06\/01_Malware_Category_1920x900.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Mark Lim\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<!-- \/ Yoast SEO Premium plugin. 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