{"id":124460,"date":"2022-08-14T23:33:04","date_gmt":"2022-08-15T06:33:04","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=124460"},"modified":"2022-08-15T17:45:29","modified_gmt":"2022-08-16T00:45:29","slug":"bluesky-ransomware","status":"publish","type":"post","link":"https:\/\/unit42.paloaltonetworks.com\/ja\/bluesky-ransomware\/","title":{"rendered":"BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2: \u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u51e6\u7406\u3067\u6697\u53f7\u5316\u51e6\u7406\u3092\u9ad8\u901f\u306b"},"content":{"rendered":"<h2><a id=\"post-124460-_gcytq79ugzfy\"><\/a>\u6982\u8981<\/h2>\n<p>BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306f\u6700\u65b0\u92ed\u306e\u6280\u8853\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u9632\u5fa1\u3092\u304b\u3044\u304f\u3050\u308b\u65b0\u8208\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u30d5\u30a1\u30df\u30ea\u306e\u3072\u3068\u3064\u3067\u3059\u3002<\/p>\n<p>\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306f\u60aa\u610f\u306e\u3042\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u4e00\u7a2e\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3057\u3001\u300c\u5fa9\u53f7\u3057\u305f\u3051\u308c\u3070\u8eab\u4ee3\u91d1\u3092\u6255\u3048\u300d\u3068\u8981\u6c42\u3057\u3066\u304d\u307e\u3059\u3002BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u4e3b\u306a\u6a19\u7684\u306fWindows\u30db\u30b9\u30c8\u3067\u3001\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u30db\u30b9\u30c8\u4e0a\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u3088\u308a\u9ad8\u901f\u306b\u6697\u53f7\u5316\u3057\u307e\u3059\u3002<\/p>\n<p>\u79c1\u305f\u3061\u306e\u5206\u6790\u3067\u306f\u3001BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u30b5\u30f3\u30d7\u30eb\u306b<a href=\"https:\/\/unit42.paloaltonetworks.jp\/conti-ransomware-gang\/\">Conti\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u30b0\u30eb\u30fc\u30d7<\/a>\u306b\u30ea\u30f3\u30af\u3059\u308b\u30b3\u30fc\u30c9\u30d5\u30a3\u30f3\u30ac\u30fc\u30d7\u30ea\u30f3\u30c8\u304c\u898b\u3064\u304b\u3063\u3066\u3044\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306fBlueSky\u306e\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306fConti v3\u3068\u30b3\u30fc\u30c9\u7684\u306b\u985e\u4f3c\u3057\u3066\u304a\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u691c\u7d22\u30e2\u30b8\u30e5\u30fc\u30eb\u306fConti\u306e\u3082\u306e\u304c\u305d\u3063\u304f\u308a\u305d\u306e\u307e\u307e\u8907\u88fd\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057BlueSky\u306b\u306f\u3001\u3069\u3061\u3089\u304b\u3068\u3044\u3046\u3068<a href=\"https:\/\/chuongdong.com\/reverse%20engineering\/2021\/01\/16\/BabukRansomware-v3\/\">Babuk\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2<\/a>\u306b\u3088\u304f\u4f3c\u305f\u90e8\u5206\u3082\u3042\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u4e21\u8005\u3068\u3082\u30d5\u30a1\u30a4\u30eb\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u306f<a href=\"https:\/\/en.wikipedia.org\/wiki\/ChaCha20-Poly1305\">ChaCha20<\/a>\u3092\u3001\u9375\u751f\u6210\u306b\u306f<a href=\"https:\/\/en.wikipedia.org\/wiki\/Curve25519\">Curve25519<\/a>\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/cloudsek.com\/threatintelligence\/tracking-the-operators-of-the-newly-emerged-bluesky-ransomware\/\">CloudSEK<\/a>\u306e\u8abf\u67fb\u306b\u3088\u308c\u3070\u3001\u507d\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304b\u3089BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u3092\u30c9\u30ed\u30c3\u30d7\u30fb\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3001\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3059\u308b\u3055\u3044\u306f\u3001PowerShell\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u4f7f\u308f\u308c\u308b\u3088\u3046\u3067\u3059\u3002\u6697\u53f7\u5316\u306b\u6210\u529f\u3059\u308b\u3068\u3001BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306f\u6697\u53f7\u5316\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u540d\u3092\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50\u300c<span style=\"font-family: 'courier new', courier, monospace;\">.bluesky<\/span>\u300d\u306b\u5909\u66f4\u3057\u3001\u300c<span style=\"font-family: 'courier new', courier, monospace;\"># DECRYPT FILES BLUESKY #.txt<\/span>\u300d\u3001\u300c<span style=\"font-family: 'courier new', courier, monospace;\"># DECRYPT FILES BLUESKY #.html<\/span>\u300d\u3068\u3044\u3046\u8eab\u4ee3\u91d1\u8981\u6c42\u30e1\u30e2\u30d5\u30a1\u30a4\u30eb\u3092\u30c9\u30ed\u30c3\u30d7\u3057\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\/cortex\/cortex-xdr\">Cortex XDR<\/a>\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/next-generation-firewall\">\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306eNGFW\u30b7\u30ea\u30fc\u30ba<\/a>\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/next-generation-firewall\">WildFire<\/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\u901a\u3058\u3001BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306a\u3069\u306e\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<a href=\"https:\/\/www.paloaltonetworks.com\/network-security\/advanced-url-filtering\">Advanced URL Filtering<\/a>\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u306f\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306bURL\u3092\u89e3\u6790\u3057\u3001BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306b\u5bfe\u3059\u308b\u30de\u30eb\u30a6\u30a7\u30a2\u9632\u5fa1\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<p>\u4fb5\u5bb3\u306e\u61f8\u5ff5\u304c\u3042\u308a\u5f0a\u793e\u306b\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u30ec\u30b9\u30dd\u30f3\u30b9\u306b\u95a2\u3059\u308b\u3054\u76f8\u8ac7\u3092\u306a\u3055\u308a\u305f\u3044\u5834\u5408\u306f\u3001<a href=\"mailto:infojapan@paloaltonetworks.com\">infojapan@paloaltonetworks.com<\/a> \u307e\u3067\u96fb\u5b50\u30e1\u30fc\u30eb\u306b\u3066\u3054\u9023\u7d61\u304f\u3060\u3055\u3044 (\u3054\u76f8\u8ac7\u306f\u5f0a\u793e\u88fd\u54c1\u306e\u304a\u5ba2\u69d8\u306b\u306f\u9650\u5b9a\u3055\u308c\u307e\u305b\u3093)\u3002\u307e\u305f\u5f0a\u793e<a href=\"https:\/\/www.paloaltonetworks.com\/unit42\/assess\">\u30b5\u30a4\u30d0\u30fc\u30ea\u30b9\u30af\u30de\u30cd\u30b8\u30e1\u30f3\u30c8\u30b5\u30fc\u30d3\u30b9<\/a>\u3092\u30ea\u30af\u30a8\u30b9\u30c8\u3044\u305f\u3060\u3051\u308c\u3070\u4e88\u9632\u7684\u63aa\u7f6e\u3092\u8b1b\u3058\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<table style=\"width: 56.0251%;\">\n<tbody>\n<tr>\n<td style=\"width: 40.0955%;\"><span style=\"font-weight: 400;\">Unit 42\u306e\u95a2\u9023\u30c8\u30d4\u30c3\u30af<\/span><\/td>\n<td style=\"width: 130.046%;\"><a href=\"https:\/\/unit42.paloaltonetworks.jp\/category\/ransomware-ja\/\"><span style=\"font-weight: 400;\">Ransomware<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/unit42.paloaltonetworks.jp\/tag\/conti-ransomware-ja\/\"><span style=\"font-weight: 400;\">Conti Ransomware<\/span><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><a id=\"post-124460-_wpun0hsux8yi\"><\/a>\u76ee\u6b21<\/h2>\n<p><a href=\"#post-124460-_h9vr6a8h2vel\">\u521d\u671f\u30c9\u30ed\u30c3\u30d1\u30fc<\/a><br \/>\n<a href=\"#post-124460-_z39i0zyt4tib\">\u30ed\u30fc\u30ab\u30eb\u7279\u6a29\u6607\u683c<\/a><br \/>\n<a href=\"#post-124460-_1mccr1psnob0\">\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u30da\u30a4\u30ed\u30fc\u30c9<\/a><br \/>\n<a href=\"#post-124460-_4m795485sl9l\">\u8eab\u4ee3\u91d1\u8981\u6c42\u30e1\u30e2<\/a><br \/>\n<a href=\"#post-124460-_kkllbv828k78\">\u89e3\u6790\u5bfe\u7b56\u6280\u8853<\/a><br \/>\n<a href=\"#post-124460-_yv8g9pzc9n85\">\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u30a2\u30fc\u30c6\u30a3\u30d5\u30a1\u30af\u30c8(\u75d5\u8de1)<\/a><br \/>\n<a href=\"#post-124460-_xov87zn4upcn\">\u30d5\u30a1\u30a4\u30eb\u6697\u53f7\u5316<\/a><br \/>\n<a href=\"#post-124460-_n0ob4pvl6v6\">RedLine\u30a4\u30f3\u30d5\u30a9\u30b9\u30c6\u30a3\u30fc\u30e9\u3068\u306e\u95a2\u9023<\/a><br \/>\n<a href=\"#post-124460-_2ppj4li8j1wa\">\u7d50\u8ad6<\/a><br \/>\n<a href=\"#post-124460-_44mv3hh9vd0m\">IoC<\/a><br \/>\n<a href=\"#post-124460-_akwvt7tf6krj\">MITRE TTP(\u6226\u8853\u30fb\u6280\u8853\u30fb\u624b\u9806)<\/a><br \/>\n<a href=\"#post-124460-_4o1quao359l9\">\u8ffd\u52a0\u30ea\u30bd\u30fc\u30b9<\/a><\/p>\n<h2><a id=\"post-124460-_h9vr6a8h2vel\"><\/a>\u521d\u671f\u30c9\u30ed\u30c3\u30d1\u30fc<\/h2>\n<p>BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306f\u307e\u305a\u3001<span style=\"font-family: 'courier new', courier, monospace;\">hxxps:\/\/kmsauto[.]us\/someone\/start.ps1<\/span>\u306b\u30db\u30b9\u30c8\u3055\u308c\u3066\u3044\u308bPowerShell\u30b9\u30af\u30ea\u30d7\u30c8\u306e<span style=\"font-family: 'courier new', courier, monospace;\">start.ps1<\/span>\u306b\u3088\u3063\u3066\u30c9\u30ed\u30c3\u30d7\u3055\u308c\u3066\u304d\u307e\u3059(\u56f31)\u3002\u3053\u306e\u521d\u671f\u30c9\u30ed\u30c3\u30d1\u30fc\u306fBase64\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u3066\u304b\u3089Deflate\u5727\u7e2e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3064\u304f\u308a\u306fPowerShell\u30c9\u30ed\u30c3\u30d1\u30fc\u3067\u306f\u3088\u304f\u898b\u3089\u308c\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_124422\" aria-describedby=\"caption-attachment-124422\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-124423 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/08\/word-image-32.png\" alt=\"\u3053\u306e\u521d\u671f\u30c9\u30ed\u30c3\u30d1\u30fc\u306fBase64\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u3066\u304b\u3089Deflate\u5727\u7e2e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3064\u304f\u308a\u306fPowerShell\u30c9\u30ed\u30c3\u30d1\u30fc\u3067\u306f\u3088\u304f\u898b\u3089\u308c\u308b\u3082\u306e\u3067\u3059\u3002 \" width=\"900\" height=\"393\" \/><figcaption id=\"caption-attachment-124422\" class=\"wp-caption-text\">\u56f31. \u521d\u671f\u30c9\u30ed\u30c3\u30d1\u30fc<\/figcaption><\/figure>\n<p>\u57cb\u3081\u8fbc\u307e\u308c\u305fBase64\u30a8\u30f3\u30b3\u30fc\u30c9\u6e08\u307f\u30c7\u30fc\u30bf\u30b9\u30c8\u30ea\u30fc\u30e0\u306f\u3001<span style=\"font-family: 'courier new', courier, monospace;\">start.ps1<\/span>\u304b\u3089\u62bd\u51fa\u3055\u308c\u3066\u30c7\u30b3\u30fc\u30c9\u30fb\u5c55\u958b\u3055\u308c\u305f\u3042\u3068\u3001\u3055\u3089\u306b\u307e\u305f\u3079\u3064\u306e<span style=\"font-family: 'courier new', courier, monospace;\">stage.ps1<\/span>\u3068\u3044\u3046PowerShell\u30b9\u30af\u30ea\u30d7\u30c8\u3078\u3068\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u3053\u306ePowerShell\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3001\u7121\u610f\u5473\u306a\u30b3\u30e1\u30f3\u30c8\u3092\u591a\u6570\u542b\u3081\u308b\u3053\u3068\u3067\u3001\u60aa\u610f\u306e\u3042\u308b\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u96a0\u305d\u3046\u3068\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u7121\u610f\u5473\u306a\u30b3\u30e1\u30f3\u30c8\u3092\u524a\u9664\u3057\u3066\u307f\u308b\u3068\u3001start.ps1\u304c\u81ea\u8eab\u3092\u5b9f\u884c\u3057\u3066\u3044\u308b\u30e6\u30fc\u30b6\u30fc\u306e\u6a29\u9650\u306b\u57fa\u3065\u3044\u3066\u3001<span style=\"font-family: 'courier new', courier, monospace;\">hxxps:\/\/kmsauto[.]us\/someone\/<\/span>\u304b\u3089\u591a\u6570\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f(\u56f32)\u3002<\/p>\n<figure id=\"attachment_124424\" aria-describedby=\"caption-attachment-124424\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-124425 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/08\/word-image-33.png\" alt=\"\u30de\u30eb\u30a6\u30a7\u30a2\u306e\u4f5c\u8005\u304c\u60aa\u610f\u306e\u3042\u308b\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u96a0\u3059\u305f\u3081\u306b\u8ffd\u52a0\u3057\u305f\u7121\u95a2\u4fc2\u306a\u30b3\u30e1\u30f3\u30c8\u3092\u524a\u9664\u3002start.ps1\u304c\u30e6\u30fc\u30b6\u30fc\u306e\u6a29\u9650\u306b\u57fa\u3065\u3044\u3066\u591a\u6570\u306e\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u3053\u3068\u304c\u308f\u304b\u3063\u305f\" width=\"900\" height=\"701\" \/><figcaption id=\"caption-attachment-124424\" class=\"wp-caption-text\">\u56f32. \u521d\u671f\u30c9\u30ed\u30c3\u30d1\u30fc(\u30c7\u30b3\u30fc\u30c9\u3057\u305f\u3082\u306e)<\/figcaption><\/figure>\n<h2><a id=\"post-124460-_z39i0zyt4tib\"><\/a>\u30ed\u30fc\u30ab\u30eb\u7279\u6a29\u6607\u683c<\/h2>\n<p>\u30ed\u30fc\u30ab\u30eb\u7279\u6a29\u6607\u683c\u7528\u306e\u8ffd\u52a0\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u524d\u306b\u3001PowerShell\u30b9\u30af\u30ea\u30d7\u30c8<span style=\"font-family: 'courier new', courier, monospace;\">stage.ps1<\/span>\u306f\u81ea\u8eab\u304c\u7279\u6a29\u30e6\u30fc\u30b6\u30fc\u3068\u3057\u3066\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u5b9a\u3057\u307e\u3059\u3002\u7279\u6a29\u30e6\u30fc\u30b6\u30fc\u3068\u3057\u3066\u5b9f\u884c\u3055\u308c\u3066\u3044\u308c\u3070\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u306b\u9032\u307f\u3001\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30fb\u5b9f\u884c\u3057\u307e\u3059\u3002\u7279\u6a29\u30e6\u30fc\u30b6\u30fc\u3067\u306a\u3051\u308c\u3070\u3001\u30db\u30b9\u30c8\u306e\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0(OS)\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u5fdc\u3058\u305f\u624b\u6cd5\u3067\u30ed\u30fc\u30ab\u30eb\u306e\u7279\u6a29\u6607\u683c\u3092\u884c\u3044\u307e\u3059\u3002\u30db\u30b9\u30c8\u306eOS\u30d0\u30fc\u30b8\u30e7\u30f3\u304cWindows XP\u30017\u30018\u306a\u3069Windows 10\u3088\u308a\u524d\u306e\u3082\u306e\u306a\u3089\u3001\u3053\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306f<a href=\"https:\/\/github.com\/ohpe\/juicy-potato\">JuicyPotato<\/a>\u3068\u547c\u3070\u308c\u308b\u30ed\u30fc\u30ab\u30eb\u7279\u6a29\u6607\u683c\u30c4\u30fc\u30eb\u3092\u6539\u5909\u3057\u305f\u3082\u306e\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u5b9f\u884c\u3057\u307e\u3059\u3002\u30db\u30b9\u30c8\u306eOS\u30d0\u30fc\u30b8\u30e7\u30f3\u304cWindows 10\u304b\u305d\u308c\u4ee5\u964d\u306e\u3082\u306e\u3067\u3042\u308c\u3070\u3001\u3053\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306f<span style=\"font-family: 'courier new', courier, monospace;\">ghost.exe<\/span>\u3068<span style=\"font-family: 'courier new', courier, monospace;\">spooler.exe<\/span>\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u5b9f\u884c\u3057\u3001\u305d\u308c\u305e\u308c\u306e\u30c4\u30fc\u30eb\u3067\u30ed\u30fc\u30ab\u30eb\u7279\u6a29\u6607\u683c\u306e\u8106\u5f31\u6027<a href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/cve-2020-0796\">CVE-2020-0796<\/a>\u3068<a href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2021-1732\">CVE-2021-1732<\/a>\u3092\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3057\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-124460-_1mccr1psnob0\"><\/a>\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u30da\u30a4\u30ed\u30fc\u30c9<\/h2>\n<p>\u8ffd\u52a0\u7279\u6a29\u3092\u596a\u53d6\u3057\u305f<span style=\"font-family: 'courier new', courier, monospace;\">stage.ps1<\/span>\u306f\u3001BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u6700\u7d42\u30da\u30a4\u30ed\u30fc\u30c9\u3092<span style=\"font-family: 'courier new', courier, monospace;\">hxxps:\/\/kmsauto[.]us\/someone\/l.exe<\/span>\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u6b63\u898fWindows\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u898b\u305b\u304b\u3051\u308b\u305f\u3081\u3001<span style=\"font-family: 'courier new', courier, monospace;\">javaw.exe<\/span>\u3068\u3044\u3046\u540d\u524d\u3067\u30ed\u30fc\u30ab\u30eb\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306b\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002\u6700\u5f8c\u306b\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u304c\u30d5\u30a1\u30a4\u30eb\u30d1\u30b9<span style=\"font-family: 'courier new', courier, monospace;\">%APPDATA%\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\javaw.exe<\/span>\u304b\u3089\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-124460-_4m795485sl9l\"><\/a>\u8eab\u4ee3\u91d1\u8981\u6c42\u30e1\u30e2<\/h2>\n<p>\u30d5\u30a1\u30a4\u30eb\u306e\u6697\u53f7\u5316\u304c\u6210\u529f\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50\u3092<span style=\"font-family: 'courier new', courier, monospace;\">.bluesky<\/span>\u306b\u5909\u66f4\u3057\u7d42\u3048\u308b\u3068\u3001BlueSky\u306f\u30ed\u30fc\u30ab\u30eb\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u300c<span style=\"font-family: 'courier new', courier, monospace;\"># DECRYPT FILES BLUESKY #.txt<\/span>\u300d\u3068\u3044\u3046\u30c6\u30ad\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u3068\u300c<span style=\"font-family: 'courier new', courier, monospace;\"># DECRYPT FILES BLUESKY #.html<\/span>\u300d\u3068\u3044\u3046HTML\u30d5\u30a1\u30a4\u30eb\u3092\u8eab\u4ee3\u91d1\u8981\u6c42\u30e1\u30e2\u3068\u3057\u3066\u30c9\u30ed\u30c3\u30d7\u3057\u307e\u3059\u3002\u56f33\u306b<span style=\"font-family: 'courier new', courier, monospace;\"># DECRYPT FILES BLUESKY #.html\u306e<\/span>\u5185\u5bb9\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_124426\" aria-describedby=\"caption-attachment-124426\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-124427 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/08\/word-image-9.jpeg\" alt=\"BlueSky\u306e\u8eab\u4ee3\u91d1\u8981\u6c42\u30e1\u30e2\u306e\u5185\u5bb9\u3002 \" width=\"900\" height=\"434\" \/><figcaption id=\"caption-attachment-124426\" class=\"wp-caption-text\">\u56f33. BlueSky\u306e\u8eab\u4ee3\u91d1\u8981\u6c42\u30e1\u30e2<\/figcaption><\/figure>\n<h2><a id=\"post-124460-_kkllbv828k78\"><\/a>\u89e3\u6790\u5bfe\u7b56\u6280\u8853<\/h2>\n<p>BlueSky\u306f\u89e3\u6790\u5bfe\u7b56\u6280\u8853\u3092\u8907\u6570\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u6280\u8853\u306b\u306f\u3001\u6587\u5b57\u5217\u306e\u6697\u53f7\u5316\u3001API\u306e\u96e3\u8aad\u5316\u3001\u30a2\u30f3\u30c1\u30c7\u30d0\u30c3\u30b0\u306e\u6a5f\u69cb\u306a\u3069\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u3053\u306e\u7d50\u679c\u3001Windows API\u306e\u95a2\u6570\u540d\u3092\u96e3\u8aad\u5316\u3057\u305f\u308a\u3001API\u306e\u89e3\u6c7a\u306b\u9593\u63a5\u547c\u3073\u51fa\u3057\u304c\u4f7f\u3048\u308b\u306b\u3088\u3046\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u307e\u305fBlueSky\u306f\u3001API\u540d\u3092DJB\u30cf\u30c3\u30b7\u30e5\u95a2\u6570\u3067\u30a8\u30f3\u30b3\u30fc\u30c9\u3059\u308b\u3053\u3068\u3067\u30de\u30eb\u30a6\u30a7\u30a2\u89e3\u6790\u3092\u59a8\u5bb3\u3057\u3066\u3044\u307e\u3059(\u56f34)\u3002<\/p>\n<figure id=\"attachment_124428\" aria-describedby=\"caption-attachment-124428\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-124429 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/08\/word-image-34.png\" alt=\"\u307e\u305fBlueSky\u306f\u3001API\u540d\u3092DJB\u30cf\u30c3\u30b7\u30e5\u95a2\u6570\u3067\u30a8\u30f3\u30b3\u30fc\u30c9\u3059\u308b\u3053\u3068\u3067\u30de\u30eb\u30a6\u30a7\u30a2\u89e3\u6790\u3092\u59a8\u5bb3\u3057\u3066\u3044\u307e\u3059(\u672c\u56f3)\u3002 \" width=\"900\" height=\"522\" \/><figcaption id=\"caption-attachment-124428\" class=\"wp-caption-text\">\u56f34. DJB\u30cf\u30c3\u30b7\u30e5\u30de\u30c3\u30c1\u30f3\u30b0<\/figcaption><\/figure>\n<h2><a id=\"post-124460-_yv8g9pzc9n85\"><\/a>\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u30a2\u30fc\u30c6\u30a3\u30d5\u30a1\u30af\u30c8(\u75d5\u8de1)<\/h2>\n<p>BlueSky\u306f\u3001\u30dc\u30ea\u30e5\u30fc\u30e0\u60c5\u5831\u3001\u30de\u30b7\u30f3GUID\u3001\u30d7\u30ed\u30c0\u30af\u30c8ID\u3001\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u65e5\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u5024\u306eMD5\u30cf\u30c3\u30b7\u30e5\u3092\u8a08\u7b97\u3057\u3066\u4e00\u610f\u306a\u30e6\u30fc\u30b6\u30fcID\u3092\u751f\u6210\u3057\u307e\u3059(\u56f35)\u3002\u307e\u305f\u3053\u306e\u30e6\u30fc\u30b6\u30fcID\u3067\u30df\u30e5\u30fc\u30c6\u30c3\u30af\u30b9\u306e<span style=\"font-family: 'courier new', courier, monospace;\">Global\\&lt;32-byte ID&gt;<\/span>\u3092\u751f\u6210\u3057\u307e\u3059(\u3053\u306e&lt;32-byte ID&gt;\u306e\u90e8\u5206\u306b\u8a08\u7b97\u3055\u308c\u305f\u4e00\u610f\u306a\u30e6\u30fc\u30b6\u30fcID\u304c\u5165\u308b)\u3002<\/p>\n<figure id=\"attachment_124430\" aria-describedby=\"caption-attachment-124430\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-124431 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/08\/word-image-35.png\" alt=\"BlueSky\u306f\u3001\u30dc\u30ea\u30e5\u30fc\u30e0\u60c5\u5831\u3001\u30de\u30b7\u30f3GUID\u3001\u30d7\u30ed\u30c0\u30af\u30c8ID\u3001\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u65e5\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u5024\u306b\u5bfe\u3057\u3066MD5\u30cf\u30c3\u30b7\u30e5\u3092\u8a08\u7b97\u3057\u3001\u4e00\u610f\u306e\u30e6\u30fc\u30b6\u30fcID\u3092\u751f\u6210\u3057\u307e\u3059(\u672c\u56f3)\u3002 \" width=\"900\" height=\"777\" \/><figcaption id=\"caption-attachment-124430\" class=\"wp-caption-text\">\u56f35. \u4e00\u610f\u306a\u30e6\u30fc\u30b6\u30fcID\u3092\u8a08\u7b97<\/figcaption><\/figure>\n<p>BlueSky\u306f\u3001\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fc<span style=\"font-family: 'courier new', courier, monospace;\">HKCU\\Software\\&lt;32-byte ID&gt;<\/span>\u3092\u4f5c\u6210\u3057\u3001\u305d\u3053\u306b\u30ec\u30b8\u30b9\u30c8\u30ea\u30a8\u30f3\u30c8\u30ea\u300c<span style=\"font-family: 'courier new', courier, monospace;\">completed<\/span>\u300d\u3001\u300c<span style=\"font-family: 'courier new', courier, monospace;\">RECOVERY BLOB<\/span>\u300d\u3001\u300c<span style=\"font-family: 'courier new', courier, monospace;\">x25519_public<\/span>\u300d\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30a8\u30f3\u30c8\u30ea\u306f\u3001\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u30d5\u30a3\u30f3\u30ac\u30fc\u30d7\u30ea\u30f3\u30c8\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002\u6697\u53f7\u5316\u306e\u51e6\u7406\u304ccompleted(\u5b8c\u4e86)\u306b\u306a\u308b\u3068\u3001\u30ec\u30b8\u30b9\u30c8\u30ea\u30a8\u30f3\u30c8\u30ea<span style=\"font-family: 'courier new', courier, monospace;\">completed<\/span>\u306b\u5024\u300c1\u300d\u304c\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u3002<span style=\"font-family: 'courier new', courier, monospace;\">RECOVERY BLOB<\/span>\u306f\u88ab\u5bb3\u7d44\u7e54\u306e\u30d5\u30a3\u30f3\u30ac\u30fc\u30d7\u30ea\u30f3\u30c8\u8b58\u5225\u5b50\u3067\u3001ChaCha20\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002<span style=\"font-family: 'courier new', courier, monospace;\">RECOVERY BLOB<\/span>\u306e\u69cb\u9020\u3092\u4ee5\u4e0b\u306e\u88681\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<table style=\"width: 69.732%;\">\n<thead>\n<tr>\n<th style=\"width: 16.1194%;\"><b>\u30aa\u30d5\u30bb\u30c3\u30c8<\/b><\/th>\n<th style=\"width: 67.7612%;\"><b>\u30c7\u30fc\u30bf<\/b><\/th>\n<th style=\"width: 168.498%;\"><b>\u30b5\u30a4\u30ba<\/b><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"width: 16.1194%;\"><span style=\"font-weight: 400;\">0x00<\/span><\/td>\n<td style=\"width: 67.7612%;\"><span style=\"font-weight: 400;\">Curve25519\u516c\u958b\u9375<\/span><\/td>\n<td style=\"width: 168.498%;\"><span style=\"font-weight: 400;\">0x20<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 16.1194%;\"><span style=\"font-weight: 400;\">0x20<\/span><\/td>\n<td style=\"width: 67.7612%;\"><span style=\"font-weight: 400;\">\u6697\u53f7\u30e9\u30f3\u30c0\u30e0\u5024<\/span><\/td>\n<td style=\"width: 168.498%;\"><span style=\"font-weight: 400;\">0x0C<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 16.1194%;\"><span style=\"font-weight: 400;\">0x2C<\/span><\/td>\n<td style=\"width: 67.7612%;\"><span style=\"font-weight: 400;\">Curve25519\u79d8\u5bc6\u9375<\/span><\/td>\n<td style=\"width: 168.498%;\"><span style=\"font-weight: 400;\">0x20<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 16.1194%;\"><span style=\"font-weight: 400;\">0x4C<\/span><\/td>\n<td style=\"width: 67.7612%;\"><span style=\"font-weight: 400;\">\u4e00\u610f\u306a\u30e6\u30fc\u30b6\u30fcID<\/span><\/td>\n<td style=\"width: 168.498%;\"><span style=\"font-weight: 400;\">0x10<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 16.1194%;\"><span style=\"font-weight: 400;\">0x5C<\/span><\/td>\n<td style=\"width: 67.7612%;\"><span style=\"font-weight: 400;\">RC4\u30c7\u30b3\u30fc\u30c9\u3055\u308c\u305f\u30cf\u30fc\u30c9\u30b3\u30fc\u30c9\u30d0\u30a4\u30c8<\/span><\/td>\n<td style=\"width: 168.498%;\"><span style=\"font-weight: 400;\">0x10<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 16.1194%;\"><span style=\"font-weight: 400;\">0x6C<\/span><\/td>\n<td style=\"width: 67.7612%;\"><span style=\"font-weight: 400;\">\u4e0d\u660e\u306a<\/span><span style=\"font-weight: 400;\">DWORD<\/span><\/td>\n<td style=\"width: 168.498%;\"><span style=\"font-weight: 400;\">0x04<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 16.1194%;\"><span style=\"font-weight: 400;\">0x70<\/span><\/td>\n<td style=\"width: 67.7612%;\"><span style=\"font-weight: 400;\">\u4e0d\u660e\u306a<\/span><span style=\"font-weight: 400;\">DWORD<\/span><\/td>\n<td style=\"width: 168.498%;\"><span style=\"font-weight: 400;\">0x04<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 16.1194%;\"><span style=\"font-weight: 400;\">0x74<\/span><\/td>\n<td style=\"width: 67.7612%;\"><span style=\"font-weight: 400;\">\u5b9a\u6570<\/span><span style=\"font-weight: 400;\">0x1000<\/span><\/td>\n<td style=\"width: 168.498%;\"><span style=\"font-weight: 400;\">0x04<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: center;\"><span style=\"color: #999999; font-size: 10pt;\"><em>\u88681 RECOVERY BLOB\u306e\u69cb\u9020<\/em><\/span><\/p>\n<p>\u305d\u306e\u5f8c<span style=\"font-family: 'courier new', courier, monospace;\">RECOVERY BLOB<\/span>\u306fChaCha20\u3067\u6697\u53f7\u5316\u3055\u308c(\u56f36)\u3001<span style=\"font-family: 'courier new', courier, monospace;\">HKCU\\Software\\&lt;32-byte ID&gt;\\RECOVERY<\/span>\u306b\u683c\u7d0d\u3055\u308c\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_124432\" aria-describedby=\"caption-attachment-124432\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-124433 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/08\/word-image-36.png\" alt=\"RECOVERY BLOB\u306fChaCha20\u3067\u6697\u53f7\u5316\u3055\u308c(\u672c\u56f3)\u3001HKCU\\Software\\&lt;32-byte ID&gt;\\RECOVERY\u306b\u683c\u7d0d\u3055\u308c\u308b\u3002\" width=\"900\" height=\"307\" \/><figcaption id=\"caption-attachment-124432\" class=\"wp-caption-text\">\u56f36. RECOVERY BLOB\u306e\u6697\u53f7\u5316<\/figcaption><\/figure>\n<h2><a id=\"post-124460-_xov87zn4upcn\"><\/a>\u30d5\u30a1\u30a4\u30eb\u6697\u53f7\u5316<\/h2>\n<p>\u305f\u3044\u3066\u3044\u306e\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u30d5\u30a1\u30df\u30ea\u306f\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50\u4e00\u89a7\u3092\u7528\u610f\u3057\u3066\u7279\u5b9a\u306e\u30d5\u30a1\u30a4\u30eb\u30bf\u30a4\u30d7\u3092\u6697\u53f7\u5316\u306e\u5bfe\u8c61\u306b\u3057\u307e\u3059\u3002BlueSky\u306f\u3053\u308c\u3068\u306f\u9006\u306b\u6697\u53f7\u5316\u51e6\u7406\u304b\u3089\u9664\u5916\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50\u306e\u4e00\u89a7\u3092\u4f7f\u3044\u307e\u3059\u3002BlueSky\u304c\u6697\u53f7\u5316\u304b\u3089\u9664\u5916\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50\u306f\u6b21\u306e\u3082\u306e\u3067\u3059\u3002<br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">ldf, scr, icl, 386, cmd, ani, adv, theme, msi, rtp, diagcfg, msstyles, bin, hlp, shs, drv, wpx, bat, rom, msc, lnk, cab, spl, ps1, msu, ics, key, msp, com, sys, diagpkg, nls, diagcab, ico, lock, ocx, mpa, cur, cpl, mod, hta, exe, ini, icns, prf, dll, bluesky, nomedia, idx<\/span><\/p>\n<p>\u6b21\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3082\u6697\u53f7\u5316\u304b\u3089\u9664\u5916\u3055\u308c\u307e\u3059\u3002<br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">$recycle.bin, $windows.~bt, $windows.~ws, boot, windows, windows.old, system volume information, perflogs, programdata, program files, program files (x86), all users, appdata, tor browser<\/span><\/p>\n<p>\u6b21\u306e\u30d5\u30a1\u30a4\u30eb\u540d\u3082\u6697\u53f7\u5316\u304b\u3089\u9664\u5916\u3055\u308c\u307e\u3059\u3002<br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\"># decrypt files bluesky #.txt, # decrypt files bluesky #.html, ntuser.dat, iconcache.db, ntuser.dat.log, bootsect.bak, autorun.inf, bootmgr, ntldr, thumbs.db<\/span><\/p>\n<p>BlueSky\u306f\u6697\u53f7\u5316\u306b\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30ad\u30e5\u30fc\u3092\u4f7f\u3063\u3066(\u56f37)\u3001\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u51e6\u7406\u3092\u958b\u59cb\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u30d5\u30a1\u30a4\u30eb\u306e\u6697\u53f7\u5316\u3092\u62c5\u5f53\u3059\u308b\u30b9\u30ec\u30c3\u30c9\u3084\u3001\u30ed\u30fc\u30ab\u30eb\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u4e0a\u306e\u30d5\u30a1\u30a4\u30eb\u306a\u3044\u3057\u30de\u30a6\u30f3\u30c8\u3055\u308c\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5171\u6709\u3092\u5217\u6319\u3057\u3066\u30ad\u30e5\u30fc\u306b\u8ffd\u52a0\u3059\u308b\u30b9\u30ec\u30c3\u30c9\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306f\u3001Conti v3\u3068\u3044\u3046\u3079\u3064\u306e\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u30b3\u30fc\u30c9\u3068\u4f3c\u3066\u3044\u307e\u3059\u3002\u3068\u304f\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u691c\u7d22\u30e2\u30b8\u30e5\u30fc\u30eb\u306fConti v3\u306e\u3082\u306e\u304c\u305d\u3063\u304f\u308a\u305d\u306e\u307e\u307e\u8907\u88fd\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u30d5\u30a1\u30a4\u30eb\u306e\u6697\u53f7\u5316\u30eb\u30fc\u30c1\u30f3\u306b\u306f\u9055\u3044\u304c\u898b\u3089\u308c\u307e\u3059\u3002\u305f\u3068\u3048\u3070Conti v3\u306fRSA\u3084AES\u30d9\u30fc\u30b9\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u6697\u53f7\u5316\u3057\u307e\u3059\u304c\u3001BlueSky\u306fCurve25519\u3068ChaCha20\u30d9\u30fc\u30b9\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_124434\" aria-describedby=\"caption-attachment-124434\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-124435 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/08\/word-image-37.png\" alt=\"BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u304c\u6697\u53f7\u5316\u306b\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30ad\u30e5\u30fc\u3092\u4f7f\u3046\u69d8\u5b50\u3002\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306f\u3079\u3064\u306e\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2Conti v3\u3068\u30b3\u30fc\u30c9\u304c\u985e\u4f3c\u3057\u3066\u3044\u308b \" width=\"900\" height=\"185\" \/><figcaption id=\"caption-attachment-124434\" class=\"wp-caption-text\">\u56f37 \u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30ad\u30e5\u30fc<\/figcaption><\/figure>\n<p>BlueSky\u306e\u30d5\u30a1\u30a4\u30eb\u6697\u53f7\u5316\u306f<a href=\"https:\/\/chuongdong.com\/reverse%20engineering\/2021\/01\/16\/BabukRansomware-v3\/\">Babuk \u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2<\/a>\u306e\u305d\u308c\u306b\u4f3c\u3066\u3044\u307e\u3059\u3002\u4e21\u8005\u3068\u3082\u3001Curve25519\u3092\u4f7f\u3063\u3066\u30db\u30b9\u30c8\u306e\u516c\u958b\u9375\u3092\u751f\u6210\u3057\u3001\u751f\u6210\u3057\u305f\u516c\u958b\u9375\u3068\u653b\u6483\u8005\u306e\u79d8\u5bc6\u9375\u3092\u4f7f\u3063\u3066\u5171\u901a\u9375\u3092\u751f\u6210\u3057\u307e\u3059\u3002BlueSky\u306f\u6955\u5186\u66f2\u7dda\u9375\u30da\u30a2\u3092\u751f\u6210\u5f8c\u3001\u5171\u901a\u9375\u306e\u30cf\u30c3\u30b7\u30e5\u3092\u8a08\u7b97\u3057\u3001\u3053\u306e\u30cf\u30c3\u30b7\u30e5\u3092\u4f7f\u3063\u3066ChaCha20\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u7528\u306e\u30d5\u30a1\u30a4\u30eb\u6697\u53f7\u5316\u9375\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u6700\u5f8c\u306bBlueSky\u306f\u30d5\u30a1\u30a4\u30eb\u30d0\u30c3\u30d5\u30a1\u3092\u8aad\u307f\u51fa\u3057\u3001ChaCha20\u3067\u6697\u53f7\u5316\u3057\u3066\u304b\u3089\u3001\u5143\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u7f6e\u304d\u63db\u3048\u307e\u3059(\u56f38)\u3002<\/p>\n<figure id=\"attachment_124437\" aria-describedby=\"caption-attachment-124437\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-124438 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2022\/08\/Figure8BlueSky.png\" alt=\"BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306f\u9375\u30da\u30a2\u3092\u751f\u6210\u3057\u3001ChaCha20\u7528\u306e\u9375\u3092\u521d\u671f\u5316\u3057\u3001\u6697\u53f7\u5316\u5bfe\u8c61\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u8aad\u307f\u53d6\u308a\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u6697\u53f7\u5316\u3057\u3001\u5143\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u7f6e\u304d\u63db\u3048\u307e\u3059\u3002\u7dd1\u3067\u66f8\u304b\u308c\u3066\u3044\u308b\u30b3\u30e1\u30f3\u30c8\u306f\u5404\u30d7\u30ed\u30bb\u30b9\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u30cf\u30a4\u30e9\u30a4\u30c8\u3057\u3066\u3044\u307e\u3059\u3002 \" width=\"900\" height=\"672\" \/><figcaption id=\"caption-attachment-124437\" class=\"wp-caption-text\">\u56f38 \u30d5\u30a1\u30a4\u30eb\u6697\u53f7\u5316\u30eb\u30fc\u30c1\u30f3<\/figcaption><\/figure>\n<h2><a id=\"post-124460-_n0ob4pvl6v6\"><\/a>RedLine\u30a4\u30f3\u30d5\u30a9\u30b9\u30c6\u30a3\u30fc\u30e9\u3068\u306e\u95a2\u9023<\/h2>\n<p>BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u95a2\u9023\u3067\u89b3\u6e2c\u3057\u305f\u30b5\u30f3\u30d7\u30eb\u306f\u3059\u3079\u3066\u3001<span style=\"font-family: 'courier new', courier, monospace;\">kmsauto[.]us<\/span>\u3068\u3044\u3046\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30c9\u30e1\u30a4\u30f3\u306b\u30db\u30b9\u30c8\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u95a2\u9023\u306e\u30b5\u30f3\u30d7\u30eb\u304c\u3082\u3063\u3068\u306a\u3044\u304b\u30cf\u30f3\u30c6\u30a3\u30f3\u30b0\u3057\u3066\u3044\u305f\u3068\u3053\u308d\u3001RedLine\u30a4\u30f3\u30d5\u30a9\u30b9\u30c6\u30a3\u30fc\u30e9\u95a2\u9023\u306e\u8907\u6570\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u30b5\u30f3\u30d7\u30eb\u304c\u3053\u308c\u3068\u540c\u4e00\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u30db\u30b9\u30c8\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002RedLine\u30a4\u30f3\u30d5\u30a9\u30b9\u30c6\u30a3\u30fc\u30e9\u3068BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u3068\u306e\u9593\u306b\u30b3\u30fc\u30c9\u306e\u91cd\u8907\u306f\u898b\u3089\u308c\u307e\u305b\u3093\u3067\u3057\u305f\u304c\u3001\u3053\u308c\u3089\u4e21\u30d5\u30a1\u30df\u30ea\u306f\u521d\u671f\u653b\u6483\u30d9\u30af\u30c8\u30eb\u3068\u3057\u3066PowerShell\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0\u3092\u4f7f\u3046\u306a\u3069\u3001\u521d\u671f\u6bb5\u968e\u306e\u985e\u4f3c\u304c\u8a8d\u3081\u3089\u308c\u307e\u3057\u305f\u3002<\/p>\n<h2><a id=\"post-124460-_2ppj4li8j1wa\"><\/a>\u7d50\u8ad6<\/h2>\n<p>\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u4f5c\u8005\u306f\u3001\u60aa\u610f\u306e\u3042\u308b\u30b5\u30f3\u30d7\u30eb\u3092\u30a8\u30f3\u30b3\u30fc\u30c9\u30fb\u6697\u53f7\u5316\u3057\u305f\u308a\u3001\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u914d\u4fe1\u3084\u8aad\u307f\u8fbc\u307f\u3092\u591a\u6bb5\u578b\u306b\u3059\u308b\u306a\u3069\u3001\u6700\u65b0\u92ed\u306e\u6280\u8853\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u9632\u5fa1\u3092\u304b\u3044\u304f\u3050\u308d\u3046\u3068\u3057\u307e\u3059\u3002BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u5834\u5408\u3001\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u51e6\u7406\u3067\u88ab\u5bb3\u7aef\u672b\u4e0a\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u9ad8\u901f\u306b\u6697\u53f7\u5316\u3067\u304d\u3001API\u306e\u30cf\u30c3\u30b7\u30e5\u5316\u3092\u306f\u3058\u3081\u3068\u3059\u308b\u96e3\u8aad\u5316\u6280\u8853\u3067\u30a2\u30ca\u30ea\u30b9\u30c8\u306e\u30ea\u30d0\u30fc\u30b9\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u51e6\u7406\u3092\u59a8\u5bb3\u3057\u3088\u3046\u3068\u3057\u307e\u3059\u3002<\/p>\n<p>\u4eca\u5f8c\u3082\u3053\u3046\u3057\u305f\u6697\u53f7\u5316\u6280\u8853\u3084\u914d\u4fe1\u30e1\u30ab\u30cb\u30ba\u30e0\u306b\u306f\u78e8\u304d\u304c\u304b\u304b\u308a\u3001\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u653b\u6483\u304c\u62e1\u5927\u3057\u3066\u3044\u304f\u53ef\u80fd\u6027\u306f\u975e\u5e38\u306b\u9ad8\u3044\u3068\u3044\u3048\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<p><a href=\"https:\/\/www.paloaltonetworks.jp\/cortex\/cortex-xdr\">Cortex XDR<\/a>\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/next-generation-firewall\">\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306eNGFW\u30b7\u30ea\u30fc\u30ba<\/a>\u3001<a href=\"https:\/\/www.paloaltonetworks.com\/network-security\/advanced-url-filtering\">Advanced URL Filtering<\/a>\u3092\u3054\u5229\u7528\u306e\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3001\u672c\u7a3f\u3067\u53d6\u308a\u4e0a\u3052\u305f\u653b\u6483\u304b\u3089\u306e\u4fdd\u8b77\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u60aa\u610f\u306e\u3042\u308b\u6307\u6a19(\u30c9\u30e1\u30a4\u30f3\u3001URL\u3001\u30cf\u30c3\u30b7\u30e5)\u306f\u3001\u5f0a\u793e<a href=\"https:\/\/www.paloaltonetworks.com\/products\/threat-detection-and-prevention\/dns-security\">DNS Security<\/a>\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/products\/secure-the-network\/wildfire\">WildFire<\/a>\u30b5\u30fc\u30d3\u30b9\u304c\u9632\u6b62\u3057\u307e\u3059\u3002<\/p>\n<p>\u4fb5\u5bb3\u306e\u61f8\u5ff5\u304c\u3042\u308a\u5f0a\u793e\u306b\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u30ec\u30b9\u30dd\u30f3\u30b9\u306b\u95a2\u3059\u308b\u3054\u76f8\u8ac7\u3092\u306a\u3055\u308a\u305f\u3044\u5834\u5408\u306f\u3001<a href=\"mailto:infojapan@paloaltonetworks.com\">infojapan@paloaltonetworks.com<\/a> \u307e\u3067\u96fb\u5b50\u30e1\u30fc\u30eb\u306b\u3066\u3054\u9023\u7d61\u3044\u305f\u3060\u304f\u304b\u3001\u4e0b\u8a18\u306e\u96fb\u8a71\u756a\u53f7\u307e\u3067\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044(\u3054\u76f8\u8ac7\u306f\u5f0a\u793e\u88fd\u54c1\u306e\u304a\u5ba2\u69d8\u306b\u306f\u9650\u5b9a\u3055\u308c\u307e\u305b\u3093)\u3002<\/p>\n<ul>\n<li>\u5317\u7c73\u30d5\u30ea\u30fc\u30c0\u30a4\u30e4\u30eb: 866.486.4842 (866.4.UNIT42)<\/li>\n<li>\u6b27\u5dde: +31.20.299.3130<\/li>\n<li>\u30a2\u30b8\u30a2\u592a\u5e73\u6d0b: +65.6983.8730<\/li>\n<li>\u65e5\u672c: +81.50.1790.0200<\/li>\n<\/ul>\n<p>\u30b5\u30a4\u30d0\u30fc\u4fdd\u967a\u306b\u3054\u52a0\u5165\u306e\u5834\u5408\u306fUnit 42\u3092\u540d\u524d\u6307\u5b9a\u3067\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u304d\u307e\u3059\u3002\u307e\u305f<a href=\"https:\/\/www.paloaltonetworks.com\/unit42\/assess\/ransomware-readiness-assessment\">Ransomware Readiness Assessment (\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u5bfe\u5fdc\u529b\u8a3a\u65ad)<\/a>\u3092\u306f\u3058\u3081\u3068\u3059\u308b\u5f0a\u793e <a href=\"https:\/\/www.paloaltonetworks.com\/unit42\/assess\/ransomware-readiness-assessment\">\u30b5\u30a4\u30d0\u30fc\u30ea\u30b9\u30af\u30de\u30cd\u30b8\u30e1\u30f3\u30c8\u30b5\u30fc\u30d3\u30b9<\/a>\u3092\u30ea\u30af\u30a8\u30b9\u30c8\u3044\u305f\u3060\u304f\u3053\u3068\u3067\u3001\u4e88\u9632\u7684\u63aa\u7f6e\u3092\u8b1b\u3058\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-124460-_44mv3hh9vd0m\"><\/a>IoC<\/h2>\n<table style=\"width: 100.06700000000001%;\">\n<tbody>\n<tr>\n<td style=\"width: 75.08216986399427%;\"><b>SHA256\u30cf\u30c3\u30b7\u30e5<\/b><\/td>\n<td style=\"width: 63.05893013600572%;\"><b>\u8aac\u660e<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 75.08216986399427%;\">\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">2280898cb29faf1785e782596d8029cb471537ec38352e5c17cc263f1f52b8ef<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">3e035f2d7d30869ce53171ef5a0f761bfb9c14d94d9fe6da385e20b8d96dc2fb<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">840af927adbfdeb7070e1cf73ed195cf48c8d5f35b6de12f58b73898d7056d3d<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">b5b105751a2bf965a6b78eeff100fe4c75282ad6f37f98b9adcd15d8c64283ec<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">c75748dc544629a8a5d08c0d8ba7fda3508a3efdaed905ad800ffddbc8d3b8df<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">e75717be1633b5e3602827dc3b5788ff691dd325b0eddd2d0d9ddcee29de364f<\/span><\/li>\n<\/ul>\n<\/td>\n<td style=\"width: 63.05893013600572%;\"><span style=\"font-weight: 400;\">BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u30da\u30a4\u30ed\u30fc\u30c9<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 75.08216986399427%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">08f491d46a9d05f1aebc83d724ca32c8063a2613250d50ce5b7e8ba469680605<\/span><\/td>\n<td style=\"width: 63.05893013600572%;\"><span style=\"font-weight: 400;\">\u96e3\u8aad\u5316\u3055\u308c\u305fPowerShell\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 75.08216986399427%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">969a4a55bb5cabc96ff003467bd8468b3079f5c95c5823985416c019eb8abe2f<\/span><\/td>\n<td style=\"width: 63.05893013600572%;\"><span style=\"font-weight: 400;\">PowerShell\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0(\u30c7\u30b3\u30fc\u30c9\u3057\u305f\u3082\u306e)<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 75.08216986399427%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">c4e47cba1c5fedf9ba522bc2d2de54a482e0ac29c98358390af6dadc0a7d65ce<\/span><\/td>\n<td style=\"width: 63.05893013600572%;\"><span style=\"font-weight: 400;\">CVE-2020-0796 SMBGhost\u306e\u7279\u6a29\u30a8\u30b9\u30ab\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 75.08216986399427%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">cf64c08d97e6dfa5588c5fa016c25c4131ccc61b8deada7f9c8b2a41d8f5a32c<\/span><\/td>\n<td style=\"width: 63.05893013600572%;\"><span style=\"font-weight: 400;\">JuicyPotato<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 75.08216986399427%;\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">6c94a1bc67af21cedb0bffac03019dbf870649a182e58cc5960969adf4fbdd48<\/span><\/td>\n<td style=\"width: 63.05893013600572%;\"><span style=\"font-weight: 400;\">CVE-2021-1732 \u7279\u6a29\u6607\u683c\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 138.1411%;\" colspan=\"2\"><i><span style=\"font-weight: 400;\">RedLine<\/span><\/i><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 75.08216986399427%;\">\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">58db85f0c86640b4c3a2584e9ef5696c526190faf87eaa19085737685bc9e7f5<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">9ca0e858ff6f163a128fb699d2b801b6b13a2eb1d6cd995302effa5f587cd8d8<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">aecfc82fa44790e0533f0bece0a1ab0860b163838646aa0c019187a37326d477<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">be3e665d389e8b85ceda1e2fc80a41a247de27d1d0b13ee0c2574c1e36ebc6d4<\/span><\/li>\n<\/ul>\n<\/td>\n<td style=\"width: 63.05893013600572%;\"><span style=\"font-weight: 400;\">PowerShell\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 75.08216986399427%;\">\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">4d696c106f568b99308565172116933c0e26ce2e9ace003a110e8bde0216ddab<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">aa7ff8badcffdff66df6d30bde51b6e3c960be0a3719b73d3875af8e1173bd94<\/span><\/li>\n<\/ul>\n<\/td>\n<td style=\"width: 63.05893013600572%;\"><span style=\"font-weight: 400;\">MSIL\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 75.08216986399427%;\">\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">0dfe7a93ff40834c072c7fdd9381771b1086b67f545fa83c766b2d67a911e47b<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">1a30e0d65a8a09abc3feb1c86a0619845fc6ab9bdba3ae8800ecec55a647910e<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">624f129189a05897c176e9feb519521c1b6ef528b0b52e1a7a3290e5a2313a6b<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">fe2e5df2fae90fb90b56e4ea268e8ca68f46dc3365c22b840d865193a48be189<\/span><\/li>\n<\/ul>\n<\/td>\n<td style=\"width: 63.05893013600572%;\"><span style=\"font-weight: 400;\">\u30da\u30a4\u30ed\u30fc\u30c9<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>URL<\/p>\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">hxxps:\/\/kmsauto[.]us\/someone\/l.exe<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">hxxps:\/\/kmsauto[.]us\/app1.bin<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">hxxps:\/\/kmsauto[.]us\/server.txt<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">hxxps:\/\/kmsauto[.]us\/encoding.txt<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">hxxps:\/\/kmsauto[.]us\/all.txt<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">hxxps:\/\/kmsauto[.]us\/someone\/spooler.exe<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">hxxps:\/\/kmsauto[.]us\/sti\/sti.bin<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">hxxps:\/\/kmsauto[.]us\/someone\/potato.exe<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">hxxps:\/\/kmsauto[.]us\/someone\/ghost.exe<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">hxxps:\/\/kmsauto[.]us\/someone\/start.ps1<\/span><\/li>\n<\/ul>\n<p>\u8eab\u4ee3\u91d1\u8981\u6c42\u30e1\u30e2\u306eURL<\/p>\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">http:\/\/ccpyeuptrlatb2piua4ukhnhi7lrxgerrcrj4p2b5uhbzqm2xgdjaqid.onion<\/span><\/li>\n<\/ul>\n<p>\u30ec\u30b8\u30b9\u30c8\u30ea\u306e\u30d1\u30b9<\/p>\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">HKCU\\Software\\&lt;32-byte hex string&gt;\\completed<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">HKCU\\Software\\&lt;32-byte hex string&gt;\\recoveryblob<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">HKCU\\Software\\&lt;32-byte hex string&gt;\\x25519_public<\/span><\/li>\n<\/ul>\n<h2><a id=\"post-124460-_akwvt7tf6krj\"><\/a>MITRE TTP(\u6226\u8853\u30fb\u6280\u8853\u30fb\u624b\u9806)<\/h2>\n<table style=\"width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 9.388469226361032%;\"><b>ID<\/b><\/td>\n<td style=\"width: 22.22447077363897%;\"><b>\u6280\u8853<\/b><\/td>\n<td style=\"width: 67.6703%;\"><b>\u8aac\u660e<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 9.388469226361032%;\"><a href=\"https:\/\/attack.mitre.org\/techniques\/T1486\"><span style=\"font-weight: 400;\">T1486<\/span><\/a><\/td>\n<td style=\"width: 22.22447077363897%;\"><a href=\"https:\/\/attack.mitre.org\/techniques\/T1486\"><span style=\"font-weight: 400;\">Data Encrypted for Impact<\/span><\/a><\/td>\n<td style=\"width: 67.6703%;\">BlueSky\u306f<span style=\"font-family: 'courier new', courier, monospace;\">CreateIoCompletionPort()<\/span>\u3001<span style=\"font-family: 'courier new', courier, monospace;\">PostQueuedCompletionStatus()<\/span>\u3001<span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">GetQueuedCompletionPort()<\/span>\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u9ad8\u901f\u306b\u6697\u53f7\u5316\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 9.388469226361032%;\"><a href=\"https:\/\/attack.mitre.org\/techniques\/T1140\"><span style=\"font-weight: 400;\">T1140<\/span><\/a><\/td>\n<td style=\"width: 22.22447077363897%;\"><a href=\"https:\/\/attack.mitre.org\/techniques\/T1140\"><span style=\"font-weight: 400;\">Deobfuscate\/Decode Files or Information<\/span><\/a><\/td>\n<td style=\"width: 67.6703%;\"><span style=\"font-weight: 400;\">BlueSky\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0\u306f\u30c7\u30fc\u30bf\u3092Base64\u30c7\u30b3\u30fc\u30c9\u30fb\u5c55\u958b\u3057\u3066\u6b21\u306e\u6bb5\u968e\u306e\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u30a2\u30f3\u30d1\u30c3\u30af\u3059\u308b<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u30da\u30a4\u30ed\u30fc\u30c9\u306fRC4\u30d9\u30fc\u30b9\u306e\u6697\u53f7\u5316\u3067\u8eab\u4ee3\u91d1\u8981\u6c42\u30e1\u30e2\u3092\u6697\u53f7\u5316\u3057\u3001\u30ab\u30b9\u30bf\u30e0\u6697\u53f7\u5316\u30b9\u30ad\u30fc\u30e0\u3067\u57cb\u3081\u8fbc\u307f\u6587\u5b57\u5217\u3092\u6697\u53f7\u5316\u3059\u308b<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 9.388469226361032%;\"><a href=\"https:\/\/attack.mitre.org\/techniques\/T1083\"><span style=\"font-weight: 400;\">T1083<\/span><\/a><\/td>\n<td style=\"width: 22.22447077363897%;\"><a href=\"https:\/\/attack.mitre.org\/techniques\/T1083\"><span style=\"font-weight: 400;\">File and Directory Discovery<\/span><\/a><\/td>\n<td style=\"width: 67.6703%;\"><span style=\"font-weight: 400;\">BlueSky\u306f\u30ed\u30fc\u30ab\u30eb\u30b7\u30b9\u30c6\u30e0\u4e0a\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u691c\u51fa\u3067\u304d\u308b<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 9.388469226361032%;\"><a href=\"https:\/\/attack.mitre.org\/techniques\/T1106\"><span style=\"font-weight: 400;\">T1106<\/span><\/a><\/td>\n<td style=\"width: 22.22447077363897%;\"><a href=\"https:\/\/attack.mitre.org\/techniques\/T1106\"><span style=\"font-weight: 400;\">Native API<\/span><\/a><\/td>\n<td style=\"width: 67.6703%;\"><span style=\"font-weight: 400;\">BlueSky\u306f\u5b9f\u884c\u6642\u306bAPI\u547c\u3073\u51fa\u3057\u3092\u4f7f\u3046<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 9.388469226361032%;\"><a href=\"https:\/\/attack.mitre.org\/techniques\/T1135\"><span style=\"font-weight: 400;\">T1135<\/span><\/a><\/td>\n<td style=\"width: 22.22447077363897%;\"><a href=\"https:\/\/attack.mitre.org\/techniques\/T1135\"><span style=\"font-weight: 400;\">Network Share Discovery<\/span><\/a><\/td>\n<td style=\"width: 67.6703%;\"><span style=\"font-weight: 400;\">BlueSky\u306f\u30ea\u30e2\u30fc\u30c8\u306e\u30aa\u30fc\u30d7\u30f3\u306aSMB\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5171\u6709\u3092<span style=\"font-weight: 400; font-family: 'courier new', courier, monospace;\">NetShareEnum()<\/span>\u3067\u5217\u6319\u3067\u304d\u308b<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 9.388469226361032%;\"><a href=\"https:\/\/attack.mitre.org\/techniques\/T1027\"><span style=\"font-weight: 400;\">T1027<\/span><\/a><\/td>\n<td style=\"width: 22.22447077363897%;\"><a href=\"https:\/\/attack.mitre.org\/techniques\/T1027\"><span style=\"font-weight: 400;\">Obfuscated Files or Information<\/span><\/a><\/td>\n<td style=\"width: 67.6703%;\"><span style=\"font-weight: 400;\">BlueSky\u306fAPI\u3092\u96e3\u8aad\u5316\u3057\u3066\u6a5f\u80fd\u3092\u5206\u6790\u304b\u3089\u4fdd\u8b77\u3059\u308b<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><a id=\"post-124460-_4o1quao359l9\"><\/a>\u8ffd\u52a0\u30ea\u30bd\u30fc\u30b9<\/h2>\n<ul>\n<li><a href=\"https:\/\/cloudsek.com\/threatintelligence\/tracking-the-operators-of-the-newly-emerged-bluesky-ransomware\/\">Tracking the Operators of the Newly Emerged BlueSky Ransomware<\/a> \u2013 <a href=\"https:\/\/cloudsek.com\/\">CloudSEK<\/a><\/li>\n<li><a href=\"https:\/\/github.com\/gharty03\/Conti-Ransomware\">Conti Ransomware Source Code<\/a> \u2013 GitHub @gharty03<\/li>\n<li><a href=\"https:\/\/chuongdong.com\/reverse%20engineering\/2021\/01\/16\/BabukRansomware-v3\">Babuk Ransomware v3<\/a> \u2013 <a href=\"https:\/\/chuongdong.com\">Chuong Dong<\/a><\/li>\n<li><a href=\"https:\/\/start.paloaltonetworks.jp\/unit-42-ransomware-threat-report.html\">2022Unit 42 \u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u8105\u5a01\u30ec\u30dd\u30fc\u30c8\u304b\u3089\u306e\u6ce8\u76ee\u30dd\u30a4\u30f3\u30c8: \u4f9d\u7136\u3068\u3057\u3066\u4e3b\u8981\u306a\u8105\u5a01<\/a><\/li>\n<li><a href=\"https:\/\/start.paloaltonetworks.com\/2022-unit42-incident-response-report\">2022Unit 42 \u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u5bfe\u5fdc\u30ec\u30dd\u30fc\u30c8<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981 BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306f\u6700\u65b0\u92ed\u306e\u6280\u8853\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u9632\u5fa1\u3092\u304b\u3044\u304f\u3050\u308b\u65b0\u8208\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u30d5\u30a1\u30df\u30ea\u306e\u3072\u3068\u3064\u3067\u3059\u3002 \u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306f\u60aa\u610f\u306e\u3042\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u4e00\u7a2e\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3057\u3001\u300c\u5fa9\u53f7\u3057\u305f\u3051\u308c\u3070\u8eab\u4ee3\u91d1\u3092\u6255<\/p>\n","protected":false},"author":335,"featured_media":134358,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[4321,3057,4428],"tags":[5519,5521,5353,5525,5427,5523,4687,5361,5526],"product_categories":[4443,4444,4446,4448,4456,4344,4465],"coauthors":[3246,3245,1762,408],"class_list":["post-124460","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-threat-research","category-ransomware-ja","category-threat-research-ja","tag-babuk-ja","tag-bluesky-ransomware-ja","tag-conti-ransomware-ja","tag-grumpy-scorpius-ja","tag-investigation-and-response-ja","tag-powershell-ja","tag-redline-infostealer-ja","tag-threat-intelligence-ja","tag-zealous-scorpius","product_categories-advanced-url-filtering-ja","product_categories-advanced-wildfire-ja","product_categories-cloud-delivered-security-services-ja","product_categories-cortex-xdr-ja","product_categories-next-generation-firewall-ja","product_categories-unit-42-incident-response","product_categories-unit-42-incident-response-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>BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2: \u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u51e6\u7406\u3067\u6697\u53f7\u5316\u51e6\u7406\u3092\u9ad8\u901f\u306b<\/title>\n<meta name=\"description\" content=\"BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306f\u6700\u65b0\u6280\u8853\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u9632\u5fa1\u3092\u304b\u3044\u304f\u3050\u308b\u65b0\u8208\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u30d5\u30a1\u30df\u30ea\u3067\u3001\u305d\u306e\u30b3\u30fc\u30c9\u306fConti v3\u3084Babuk\u306b\u4f3c\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u8907\u6570\u306eRedLine\u30a4\u30f3\u30d5\u30a9\u30b9\u30c6\u30a3\u30fc\u30e9\u30b5\u30f3\u30d7\u30eb\u3092\u30db\u30b9\u30c8\u3059\u308b\u30c9\u30e1\u30a4\u30f3\u3068\u306e\u91cd\u8907\u3082\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002\" \/>\n<meta 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v3\u3084Babuk\u306b\u4f3c\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u8907\u6570\u306eRedLine\u30a4\u30f3\u30d5\u30a9\u30b9\u30c6\u30a3\u30fc\u30e9\u30b5\u30f3\u30d7\u30eb\u3092\u30db\u30b9\u30c8\u3059\u308b\u30c9\u30e1\u30a4\u30f3\u3068\u306e\u91cd\u8907\u3082\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/unit42.paloaltonetworks.com\/ja\/bluesky-ransomware\/\" \/>\n<meta property=\"og:site_name\" content=\"Unit 42\" \/>\n<meta property=\"article:published_time\" content=\"2022-08-15T06:33:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-08-16T00:45:29+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2024\/06\/01_Ransomware_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=\"Muhammad Umer Khan, Lee Wei, Yang Ji, Wenjun Hu\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2: \u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u51e6\u7406\u3067\u6697\u53f7\u5316\u51e6\u7406\u3092\u9ad8\u901f\u306b","description":"BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306f\u6700\u65b0\u6280\u8853\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u9632\u5fa1\u3092\u304b\u3044\u304f\u3050\u308b\u65b0\u8208\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u30d5\u30a1\u30df\u30ea\u3067\u3001\u305d\u306e\u30b3\u30fc\u30c9\u306fConti v3\u3084Babuk\u306b\u4f3c\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u8907\u6570\u306eRedLine\u30a4\u30f3\u30d5\u30a9\u30b9\u30c6\u30a3\u30fc\u30e9\u30b5\u30f3\u30d7\u30eb\u3092\u30db\u30b9\u30c8\u3059\u308b\u30c9\u30e1\u30a4\u30f3\u3068\u306e\u91cd\u8907\u3082\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/unit42.paloaltonetworks.com\/ja\/bluesky-ransomware\/","og_locale":"ja_JP","og_type":"article","og_title":"BlueSky\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2: 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