{"id":108298,"date":"2020-08-13T19:43:14","date_gmt":"2020-08-14T02:43:14","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=108298"},"modified":"2026-03-03T01:02:46","modified_gmt":"2026-03-03T09:02:46","slug":"script-based-malware","status":"publish","type":"post","link":"https:\/\/origin-unit42.paloaltonetworks.com\/ja\/script-based-malware\/","title":{"rendered":"Internet Explorer\u3092\u6a19\u7684\u3068\u3059\u308b\u653b\u6483\u8005\u306b\u30b9\u30af\u30ea\u30d7\u30c8\u7cfb\u30de\u30eb\u30a6\u30a7\u30a2\u3092\u5229\u7528\u3059\u308b\u50be\u5411"},"content":{"rendered":"

\u8981\u7d04<\/strong><\/h2>\n

\u3053\u3053\u6570\u304b\u6708\u3001Windows \u30e6\u30fc\u30b6\u30fc\u306b\u611f\u67d3\u3059\u308bIE (Internet Explorer) \u30d6\u30e9\u30a6\u30b6\u7528\u306e\u9ad8\u5ea6\u306a\u30b9\u30af\u30ea\u30d7\u30c8\u7cfb\u30de\u30eb\u30a6\u30a7\u30a2\u304c\u691c\u77e5\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4eca\u56de\u306f\u3053\u308c\u3089\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u8abf\u67fb\u3057\u3001\u305d\u306e\u4e3b\u305f\u308b\u6a5f\u80fd\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u653b\u6483\u8005\u304c\u30b9\u30af\u30ea\u30d7\u30c8\u7cfb\u30de\u30eb\u30a6\u30a7\u30a2\u3092\u597d\u3093\u3067\u5229\u7528\u3057\u3066\u3044\u308b\u3053\u3068\u3084\u3001\u305d\u308c\u304c\u4eca\u5f8c\u6ce8\u610f\u3092\u8981\u3059\u308b\u30c8\u30ec\u30f3\u30c9\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u306b\u3064\u3044\u3066\u53d6\u308a\u4e0a\u3052\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

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\u6700\u5f8c\u306b\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u30d9\u30fc\u30b9\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u8a00\u8a9e\u3092\u3055\u3089\u306b\u8a73\u3057\u304f\u7d39\u4ecb\u3059\u308b\u305f\u3081\u306b\u3001\u653b\u6483\u8005\u304c\u30d6\u30e9\u30a6\u30b6\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u30da\u30a4\u30ed\u30fc\u30c9\u3068\u3057\u3066\u3001\u901a\u5e38\u306e\u5b9f\u884c\u30d5\u30a1\u30a4\u30eb\u306e\u4ee3\u308f\u308a\u306b\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u9078\u629e\u3059\u308b\u7406\u7531\u306b\u3064\u3044\u3066\u8003\u5bdf\u3057\u307e\u3059\u3002<\/p>\n

\u5b89\u5168\u306aWeb\u30d6\u30e9\u30a6\u30b8\u30f3\u30b0\u306e\u305f\u3081\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>\u306b\u5f93\u3063\u3066\u6700\u65b0Windows\u30db\u30b9\u30c8\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u7d44\u7e54\u3067\u3042\u308c\u3070\u611f\u67d3\u30ea\u30b9\u30af\u306f\u5927\u304d\u304f\u4f4e\u4e0b\u3057\u307e\u3059\u3002\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306fIPS\u30b7\u30b0\u30cd\u30c1\u30e3\u3067\u3053\u306e\u8105\u5a01\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u305fURL\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3001WildFire\u306f\u3044\u305a\u308c\u3082\u95a2\u9023\u3059\u308b\u30b5\u30f3\u30d7\u30eb\u3084\u30a4\u30f3\u30d5\u30e9\u3092\u30de\u30eb\u30a6\u30a7\u30a2\u3068\u8b58\u5225\u3057\u307e\u3059\u3002<\/p>\n

CVE-2019-0752<\/strong><\/h2>\n

CVE-2019-0752\u306f2019\u5e744\u6708\u306b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0<\/a>\u304c\u516c\u958b\u3055\u308c\u305f\u30b9\u30af\u30ea\u30d7\u30c8\u30a8\u30f3\u30b8\u30f3\u306e\u30e1\u30e2\u30ea\u7834\u640d\u8106\u5f31\u6027\u3067\u3001\u6a19\u7684\u30de\u30b7\u30f3\u4e0a\u3067\u306e\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c(RCE)\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3082\u306e\u3067\u3059\u3002\u3053\u3053\u3067\u691c\u8a3c\u3059\u308b\u4e8b\u4f8b\u3067\u306f\u3001\u5bfe\u8c61\u3068\u306a\u308b2\u3064\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u306e\u3055\u3044\u3001\u540c\u8106\u5f31\u6027\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306b\u3088\u3063\u3066PowerShell\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u3044\u307e\u3057\u305f\u3002CVE-2019-0752\u8106\u5f31\u6027\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u8a73\u3057\u3044write-up\u306fZero Day Initiative\u306e\u30d6\u30ed\u30b0\u8a18\u4e8b<\/a>\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

\u30d6\u30e9\u30a6\u30b6\u5185\u306eJScript RAT<\/strong><\/h2>\n

\u79c1\u305f\u3061\u306f\u30014\u670818\u65e5\u306bassurancetemporaireenligne[.]com<\/span>\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305fc.js<\/span> JScript RAT\u3092\u8abf\u67fb\u3057\u307e\u3057\u305f\u3002CVE-2019-0752\u8106\u5f31\u6027\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308bPowerShell\u30b3\u30de\u30f3\u30c9\u3092\u56f31\u306b\u793a\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001c.js<\/span>\u30d5\u30a1\u30a4\u30eb\u3092\u5206\u6790\u3057\u307e\u3059\u3002\u307e\u305a\u306f\u30d5\u30a1\u30a4\u30eb\u306e\u9759\u7684\u5206\u6790\u3092\u884c\u3063\u3066\u3001\u60aa\u610f\u306e\u3042\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u6982\u8981\u3092\u628a\u63e1\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u6b21\u306b\u52d5\u7684\u5206\u6790\u3092\u884c\u3063\u3066\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u52d5\u4f5c\u3092\u691c\u8a3c\u3057\u307e\u3059\u3002\u7279\u306b\u3001\u60aa\u610f\u306e\u3042\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u6a19\u7684\u30de\u30b7\u30f3\u4e0a\u3067\u6c38\u7d9a\u6027\u3092\u78ba\u4fdd\u3057\u3001\u30ea\u30e2\u30fc\u30c8\u30b5\u30fc\u30d0\u30fc\u306b\u63a5\u7d9a\u3059\u308b\u3055\u3044\u306b\u5229\u7528\u3059\u308b\u624b\u6cd5\u306b\u3064\u3044\u3066\u8003\u5bdf\u3057\u307e\u3059\u3002<\/p>\n

\"\u3053\u306e\u30b3\u30de\u30f3\u30c9\u306f\u3001JScript
\u56f31: JScript RAT\u30b5\u30f3\u30d7\u30eb\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3068\u8d77\u52d5\u306b\u4f7f\u7528\u3055\u308c\u308b\u30b3\u30de\u30f3\u30c9<\/figcaption><\/figure>\n

c.js\u30d5\u30a1\u30a4\u30eb\u306e\u9759\u7684\u5206\u6790<\/h4>\n

c.js<\/span>\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u96e3\u8aad\u5316\u3055\u308c\u3066\u3044\u3066\u4e00\u898b\u3057\u305f\u3060\u3051\u3067\u306f\u52d5\u4f5c\u304c\u308f\u304b\u308a\u307e\u305b\u3093(\u4ee5\u4e0b)\u3002<\/p>\n

\"\"<\/p>\n

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\"\u3053\u306e\u56f3\u306b\u793a\u3059\u3088\u3046\u306b\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u96e3\u8aad\u5316\u3092\u89e3\u9664\u3059\u308b\u3068\u3001\u691c\u8a3c\u3057\u3066\u3044\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u30d9\u30fc\u30b9\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u3092\u5b9f\u884c\u3059\u308b\u30012\u3064\u306e\u30d1\u30c3\u30af\u3055\u308c\u305fJScript\u30b3\u30fc\u30c9\u306e\u307e\u3068\u307e\u308a\u304cdata1\u3068data2\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002
\u56f32: \u96e3\u8aad\u5316\u304c\u89e3\u9664\u3055\u308c\u305fc.js\u30b9\u30af\u30ea\u30d7\u30c8\u3001\u30d1\u30fc\u30c81<\/figcaption><\/figure>\n

\u56f33\u306f\u3001data1<\/span>\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30b3\u30fc\u30c9\u304cHKCU\\Software\\loaderName<\/span>\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fc\u306b\u633f\u5165\u3055\u308c\u3001data2<\/span>\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30b3\u30fc\u30c9\u304cEncodeScriptFile\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u3001loader.jse<\/span>\u30d5\u30a1\u30a4\u30eb\u306b\u66f8\u304d\u8fbc\u307e\u308c\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u7d9a\u3044\u3066\u3001loader.jse<\/span>\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u30d1\u30b9\u304cHKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run<\/span>\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fc\u306b\u6e21\u3055\u308c\u3001\u305d\u308c\u4ee5\u964d\u306f\u4f7f\u7528\u3055\u308c\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093(\u3053\u306e\u52d5\u4f5c\u306b\u3064\u3044\u3066\u306f\u3001\u6b21\u306e\u9805\u3067\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059)\u3002\u307e\u305f\u3001host<\/span>\u5909\u6570\u304c\u3001hxxp:\/\/seemee[.]ddns[.]net\/loader\/loader2\/www<\/span> URL\u3067\u521d\u671f\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u5909\u6570\u306f\u3053\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u306f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u304c\u3001\u5b9f\u884c\u6642\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6d3b\u52d5\u304c\u884c\u308f\u308c\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u6700\u5f8c\u306bloader.jse<\/span>\u304c\u5b9f\u884c\u3055\u308c\u3001c.js<\/span>\u306f\u81ea\u8eab\u3092\u524a\u9664\u3057\u307e\u3059\u3002<\/p>\n

\"\u30b9\u30af\u30ea\u30d7\u30c8\u30d9\u30fc\u30b9\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u30b5\u30f3\u30d7\u30eb\u304b\u3089\u306e\u96e3\u8aad\u5316\u304c\u89e3\u9664\u3055\u308c\u305f\u30b3\u30fc\u30c9\u306e\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u306f\u3001\u60aa\u610f\u306e\u3042\u308b\u30b3\u30fc\u30c9\u304c\u3069\u3053\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\"
\u56f33: \u96e3\u8aad\u5316\u304c\u89e3\u9664\u3055\u308c\u305fc.js\u30b9\u30af\u30ea\u30d7\u30c8\u3001\u30d1\u30fc\u30c82<\/figcaption><\/figure>\n

\u60aa\u610f\u306e\u3042\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u30b3\u30fc\u30c9\u306e\u6982\u8981\u3092\u628a\u63e1\u3057\u305f\u3089\u3001\u6b21\u306f\u52d5\u7684\u5206\u6790\u306b\u3088\u308a\u3001\u305d\u306e\u52d5\u4f5c\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n

\u6c38\u7d9a\u6027\u3092\u78ba\u4fdd\u3059\u308b\u624b\u6cd5<\/strong><\/h2>\n

\u307e\u305a\u3001c.js<\/span>\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3001\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fcHKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run<\/span>\u3092\u4f5c\u6210\u3057\u3066\u65b0\u3057\u3044\u5024\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002loaderName<\/span>\u3068\u3044\u3046\u540d\u524d\u306e\u3053\u306e\u5024\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u56f34\u306b\u793a\u3059\u3088\u3046\u306b\u3001\u7279\u5b9a\u306eloader.jse<\/span>\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\u304c\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u3002<\/p>\n

\"\u3053\u306e\u56f3\u306f\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u3088\u308a\u3001\u7279\u5b9a\u306eloader.jse\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\u304c\u8a2d\u5b9a\u3055\u308c\u305f\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fc\u306e\u65b0\u3057\u3044\u5024\u304c\u3069\u306e\u3088\u3046\u306b\u4f5c\u6210\u3055\u308c\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\"\u3053\u306e\u56f3\u306f\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u3088\u308a\u3001\u7279\u5b9a\u306eloader.jse\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\u304c\u8a2d\u5b9a\u3055\u308c\u305f\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fc\u306e\u65b0\u3057\u3044\u5024\u304c\u3069\u306e\u3088\u3046\u306b\u4f5c\u6210\u3055\u308c\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002
\u56f34: RegSetValueExA\u306eAPI\u30d5\u30c3\u30af<\/figcaption><\/figure>\n

Run<\/span>\u30ad\u30fc\u306b\u3088\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30ed\u30b0\u30aa\u30f3\u3059\u308b\u305f\u3073\u306b\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u5b9f\u884c\u3055\u308c\u3001Windows OS\u304c\u8d77\u52d5\u3059\u308b\u305f\u3073\u306b\u3001(\u307e\u3060\u4f5c\u6210\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u304c)loader.jse<\/span>\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u81ea\u52d5\u7684\u306b\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002\u56f35\u306b\u3001c.js<\/span>\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u6c38\u7d9a\u6027\u78ba\u4fdd\u306e\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u3088\u308a\u3001\u5b9f\u969b\u306eloader.jse<\/span>\u30d5\u30a1\u30a4\u30eb\u304c\u4f5c\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u56f35\u306f\u3001loader.jse<\/span>\u30b9\u30af\u30ea\u30d7\u30c8\u304cAppData<\/span>\u30d5\u30a9\u30eb\u30c0\u306b\u4f5c\u6210\u3055\u308c\u308b\u3053\u3068\u3082\u793a\u3057\u3066\u3044\u307e\u3059\u3002AppData<\/span>\u30d5\u30a9\u30eb\u30c0\u306fWindows OS\u3067\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u975e\u8868\u793a\u306e\u30d5\u30a9\u30eb\u30c0\u306a\u306e\u3067\u3001\u88ab\u5bb3\u8005\u306f\u30b7\u30b9\u30c6\u30e0\u306b\u60aa\u610f\u306e\u3042\u308b\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u306b\u306a\u304b\u306a\u304b\u6c17\u3065\u3051\u307e\u305b\u3093\u3002<\/p>\n

\"\u3053\u306e\u56f3\u306f\u3001Windows<\/p>\n

\"\u3053\u306e\u56f3\u306f\u3001Windows
\u56f35: CreateFileW\u306eAPI\u30d5\u30c3\u30af<\/figcaption><\/figure>\n

loader.jse<\/span>\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\u5f8c\u3001\u56f36\u306b\u793a\u3059\u3088\u3046\u306b\u3001c.js<\/span>\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u30aa\u30fc\u30d7\u30f3\u30cf\u30f3\u30c9\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3001\u56f37\u306b\u793a\u3059\u3088\u3046\u306b\u3001\u305d\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u30b3\u30fc\u30c9\u3092\u633f\u5165\u3057\u307e\u3059\u3002<\/p>\n

\"loader.jse\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\u5f8c\u3001c.js\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u30aa\u30fc\u30d7\u30f3\u30cf\u30f3\u30c9\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3001\u3053\u306e\u56f3\u306b\u793a\u3059\u3088\u3046\u306b\u3001\u305d\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u30b3\u30fc\u30c9\u3092\u633f\u5165\u3057\u307e\u3059\u3002<\/p>\n

\"loader.jse\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\u5f8c\u3001c.js\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u30aa\u30fc\u30d7\u30f3\u30cf\u30f3\u30c9\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3001\u3053\u306e\u56f3\u306b\u793a\u3059\u3088\u3046\u306b\u3001\u305d\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u30b3\u30fc\u30c9\u3092\u633f\u5165\u3057\u307e\u3059\u3002
\u56f36: CreateFileW\u95a2\u6570\u306e\u623b\u308a\u5024<\/figcaption><\/figure>\n

\"\u3053\u306e\u56f3\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u306b\u66f8\u304d\u8fbc\u307e\u308c\u308b\u30b3\u30fc\u30c9\u304c\u96e3\u8aad\u5316\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u5f37\u529b\u306a\u96e3\u8aad\u5316\u3092\u6bd4\u8f03\u7684\u7c21\u5358\u306b\u9054\u6210\u3067\u304d\u308b\u3053\u3068\u304c\u3001\u653b\u6483\u8005\u304c\u30b9\u30af\u30ea\u30d7\u30c8\u30d9\u30fc\u30b9\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u306e\u4f7f\u7528\u3092\u9078\u629e\u3059\u308b\u7406\u7531\u306e1\u3064\u3067\u3059\u3002<\/p>\n

\"\u3053\u306e\u56f3\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u306b\u66f8\u304d\u8fbc\u307e\u308c\u308b\u30b3\u30fc\u30c9\u304c\u96e3\u8aad\u5316\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u5f37\u529b\u306a\u96e3\u8aad\u5316\u3092\u6bd4\u8f03\u7684\u7c21\u5358\u306b\u9054\u6210\u3067\u304d\u308b\u3053\u3068\u304c\u3001\u653b\u6483\u8005\u304c\u30b9\u30af\u30ea\u30d7\u30c8\u30d9\u30fc\u30b9\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u306e\u4f7f\u7528\u3092\u9078\u629e\u3059\u308b\u7406\u7531\u306e1\u3064\u3067\u3059\u3002
\u56f37: WriteFile\u306eAPI\u30d5\u30c3\u30af<\/figcaption><\/figure>\n

\u56f37\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u306b\u66f8\u304d\u8fbc\u307e\u308c\u308b\u30b3\u30fc\u30c9\u304c\u96e3\u8aad\u5316\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3082\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u306e\u5148\u982d\u306b\u3042\u308b\u30de\u30b8\u30c3\u30af\u30d0\u30a4\u30c8\u300c#@~^<\/span>\u300d\u306e\u304a\u304b\u3052\u3067\u3001loader.jse<\/span>\u30b9\u30af\u30ea\u30d7\u30c8\u304cMicrosoft\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3067\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u79c1\u305f\u3061\u306e\u9759\u7684\u5206\u6790\u3068\u4e00\u81f4\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u306fShellExecute<\/span>\u95a2\u6570\u306b\u3088\u308a\u5b9f\u884c\u3055\u308c(\u56f38)\u3001c.js<\/span>\u30d5\u30a1\u30a4\u30eb\u306f\u81ea\u8eab\u3092\u524a\u9664\u3057\u307e\u3059\u3002<\/p>\n

\"\u3053\u306e\u56f3\u306f\u3001\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u304cShellExecute\u95a2\u6570\u306b\u3088\u308a\u5b9f\u884c\u3055\u308c\u305f\u5f8c\u3001c.js\u30d5\u30a1\u30a4\u30eb\u304c\u81ea\u8eab\u3092\u524a\u9664\u3059\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\"\u3053\u306e\u56f3\u306f\u3001\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u304cShellExecute\u95a2\u6570\u306b\u3088\u308a\u5b9f\u884c\u3055\u308c\u305f\u5f8c\u3001c.js\u30d5\u30a1\u30a4\u30eb\u304c\u81ea\u8eab\u3092\u524a\u9664\u3059\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002
\u56f38: ShellExecuteExW\u306eAPI\u30d5\u30c3\u30af<\/figcaption><\/figure>\n

\u8981\u7d04\u3059\u308b\u3068\u3001\u6a19\u7684\u30db\u30b9\u30c8\u4e0a\u3067\u6c38\u7d9a\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u3001c.js<\/span>\u30d5\u30a1\u30a4\u30eb\u306f\u75d5\u8de1\u3092\u6b8b\u3055\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u306b\u3001Windows\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fcRun<\/span>\u3092\u4f7f\u7528\u3057\u3001\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30ebloader.jse<\/span>\u3092\u975e\u8868\u793a\u30d5\u30a9\u30eb\u30c0\u306b\u30c9\u30ed\u30c3\u30d7\u3057\u3066\u304b\u3089\u3001\u81ea\u8eab\u3092\u524a\u9664\u3057\u307e\u3059\u3002<\/p>\n

\u30ea\u30e2\u30fc\u30c8\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u63a5\u7d9a<\/h4>\n

loader.jse<\/span>\u306e\u52d5\u4f5c\u3068\u30ea\u30e2\u30fc\u30c8\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u63a5\u7d9a\u3092\u5206\u6790\u3059\u308b\u524d\u306b\u3001c.js<\/span>\u30d5\u30a1\u30a4\u30eb\u306e\u5b9f\u884c\u306b\u623b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u9759\u7684\u5206\u6790\u3067\u78ba\u8a8d\u3057\u305f\u3088\u3046\u306b\u3001\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306fHKCU\\Software\\loaderName<\/span>\u3068\u3044\u3046\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fc\u3082\u4f5c\u6210\u3057\u3001\u3053\u306e\u30ad\u30fc\u306b\u5024data<\/span>\u3092\u8a2d\u5b9a\u3057\u3066\u3001\u30d1\u30c3\u30af\u3055\u308c\u305fJScript\u30b3\u30fc\u30c9\u3092\u683c\u7d0d\u3057\u307e\u3059\u3002\u56f39\u306b\u3053\u306e\u52d5\u4f5c\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n

\"\u3053\u306e\u56f3\u306f\u3001c.js\u30d5\u30a1\u30a4\u30eb\u306b\u3088\u308a\u3069\u306e\u3088\u3046\u306b\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fc\u304c\u4f5c\u6210\u3055\u308c\u3001\u3053\u306e\u30ad\u30fc\u306b\u5024\u3092\u8a2d\u5b9a\u3057\u3066\u3001\u30d1\u30c3\u30af\u3055\u308c\u305fJScript\u30b3\u30fc\u30c9\u3092\u683c\u7d0d\u3059\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\"\u3053\u306e\u56f3\u306f\u3001c.js\u30d5\u30a1\u30a4\u30eb\u306b\u3088\u308a\u3069\u306e\u3088\u3046\u306b\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fc\u304c\u4f5c\u6210\u3055\u308c\u3001\u3053\u306e\u30ad\u30fc\u306b\u5024\u3092\u8a2d\u5b9a\u3057\u3066\u3001\u30d1\u30c3\u30af\u3055\u308c\u305fJScript\u30b3\u30fc\u30c9\u3092\u683c\u7d0d\u3059\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002
\u56f39: c.js\u30d5\u30a1\u30a4\u30eb\u306e\u5b9f\u884c\u4e2d\u306eRegSetValueExA\u306eAPI\u30d5\u30c3\u30af<\/figcaption><\/figure>\n

loader.jse<\/span>\u306e\u5b9f\u884c\u6642\u306b\u3001\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fcHKCU\\Software\\loaderName<\/span>\u304c\u958b\u304b\u308c(\u56f310)\u3001\u30c7\u30fc\u30bf\u5024\u306b\u542b\u307e\u308c\u308b\u30b3\u30fc\u30c9\u304c\u5b9f\u884c\u3055\u308c\u308b\u305f\u3081\u3001c.js<\/span>\u5b9f\u884c\u306e\u3053\u306e\u30b9\u30c6\u30c3\u30d7\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>\n

\"\u3053\u306e\u30b9\u30c6\u30c3\u30d7\u306f\u3001loader.jse\u30d5\u30a1\u30a4\u30eb\u304c\u3069\u306e\u3088\u3046\u306b\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fc\u3092\u958b\u304d\u3001\u30c7\u30fc\u30bf\u5024\u306b\u542b\u307e\u308c\u308b\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\"
\u56f310: loader.jse\u30d5\u30a1\u30a4\u30eb\u306e\u5b9f\u884c\u4e2d\u306eRegOpenKeyExA\u306eAPI\u30d5\u30c3\u30af<\/figcaption><\/figure>\n

\u6b21\u306b\u3001\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fcloaderName<\/span>\u5185\u306e\u30d1\u30c3\u30af\u3055\u308c\u305f\u30b3\u30fc\u30c9\u3092\u898b\u3066\u307f\u308b\u3068\u3001function(p,a,c,k,e,d)<\/span>\u30d1\u30bf\u30fc\u30f3\u304c\u542b\u307e\u308c\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059(\u56f311)\u3002\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u30b3\u30fc\u30c9\u306e\u96e3\u8aad\u5316\u306bDean Edwards\u30d1\u30c3\u30ab\u30fc<\/a>\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30d1\u30c3\u30ab\u30fc\u306f\u4eca\u306f\u3082\u3046\u53e4\u3044\u3067\u3059\u304c\u3001\u4e00\u822c\u7684\u3067\u3042\u3063\u305f\u3068\u304d\u306b\u306f\u3001\u5b89\u5168\u306a\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u3082\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u306e\u305f\u3081\u3001\u591a\u304f\u306e\u691c\u77e5\u30c6\u30af\u30ce\u30ed\u30b8\u3067\u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\"\u3053\u306e\u56f3\u306f\u3001\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fc\u5185\u306e\u30d1\u30c3\u30af\u3055\u308c\u305f\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3059\u308b\u3068\u3001\u30b3\u30fc\u30c9\u306e\u96e3\u8aad\u5316\u306bDean
\u56f311: loaderName\u30ec\u30b8\u30b9\u30c8\u30ea\u30ad\u30fc\u3068\u30d1\u30c3\u30af\u3055\u308c\u305f\u30b3\u30fc\u30c9<\/figcaption><\/figure>\n

\u30b3\u30fc\u30c9\u3092\u30a2\u30f3\u30d1\u30c3\u30af\u3059\u308b\u3068\u3001\u56f312\u306b\u793a\u3059\u3088\u3046\u306b\u3001hxxp:\/\/seemee[.]ddns [.]net<\/span>\u30c9\u30e1\u30a4\u30f3\u306eloader.php<\/span>\u30da\u30fc\u30b8\u306b\u5bfe\u3057\u3066GET<\/span>\u8981\u6c42\u304c\u9001\u4fe1\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5f15\u6570r<\/span>\u306f\u60aa\u610f\u306e\u3042\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u3068\u30ea\u30e2\u30fc\u30c8\u30b5\u30fc\u30d0\u30fc\u3067\u5171\u6709\u3055\u308c\u3066\u3044\u308b\u4e71\u6570\u3067\u3042\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3092\u9001\u53d7\u4fe1\u3055\u308c\u308b\u30c7\u30fc\u30bf\u3092\u30a8\u30f3\u30b3\u30fc\u30c9\u304a\u3088\u3073\u30c7\u30b3\u30fc\u30c9\u3059\u308b\u305f\u3081\u306e\u30c8\u30fc\u30af\u30f3\u306e\u3088\u3046\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001GET<\/span>\u8981\u6c42\u3078\u306e\u5fdc\u7b54\u3092\u30c7\u30b3\u30fc\u30c9\u3059\u308b\u305f\u3081\u306b\u3001\u6587\u5b57\u5217\u3092\u30c7\u30b3\u30fc\u30c9\u3059\u308b\u6a5f\u80fd\u3092\u6301\u3064\u5225\u306e\u95a2\u6570\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30ea\u30e2\u30fc\u30c8\u30b5\u30fc\u30d0\u30fc\u3068\u306e\u63a5\u7d9a\u304c\u78ba\u7acb\u3055\u308c\u305f\u305f\u3081\u3001\u60aa\u610f\u306e\u3042\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u306fGET<\/span>\u8981\u6c42\u3078\u306e\u5fdc\u7b54\u3067\u53d7\u4fe1\u3057\u305f\u30b3\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u653b\u6483\u8005\u304c\u6a19\u7684\u30de\u30b7\u30f3\u4e0a\u3067\u5b9f\u884c\u3059\u308b\u30b3\u30de\u30f3\u30c9\u3092\u9078\u629e\u3067\u304d\u308b\u30d1\u30cd\u30eb\u3067\u3042\u308bcmd.php<\/span>\u30da\u30fc\u30b8\u306b\u63a5\u7d9a\u3057\u307e\u3059\u3002<\/p>\n

\"\u30a2\u30f3\u30d1\u30c3\u30af\u3055\u308c\u305f\u30b3\u30fc\u30c9\u306e\u3053\u306e\u56f3\u306f\u3001\u60aa\u610f\u306e\u3042\u308b\u30c9\u30e1\u30a4\u30f3\u306eloader.php\u30da\u30fc\u30b8\u306b\u5bfe\u3057\u3066\u9001\u4fe1\u3055\u308c\u305fGET\u8981\u6c42\u304a\u3088\u3073\u30b3\u30fc\u30c9\u306b\u3088\u308a\u5b9f\u884c\u3055\u308c\u305f\u305d\u306e\u4ed6\u306e\u30b3\u30de\u30f3\u30c9\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002
\u56f312: loader.jse\u306b\u3088\u308a\u5b9f\u884c\u3055\u308c\u308b\u30a2\u30f3\u30d1\u30c3\u30af\u3055\u308c\u305f\u30b3\u30fc\u30c9<\/figcaption><\/figure>\n

\u8981\u6c42\u306e\u5fdc\u7b54\u306b\u542b\u307e\u308c\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3001cmd.php<\/span>\u30da\u30fc\u30b8\u306b\u5bfe\u3057\u3066\u8981\u6c42\u3092\u9001\u4fe1\u3057\u3066\u3001\u5b9f\u884c\u3059\u308b\u30bf\u30b9\u30af\u306e\u6307\u793a\u3092\u53d6\u5f97\u3059\u308b\u7121\u9650\u30eb\u30fc\u30d7\u3067\u3059(\u56f313)\u3002<\/p>\n

\"\u8981\u6c42\u306e\u5fdc\u7b54\u306b\u542b\u307e\u308c\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3001cmd.php\u30da\u30fc\u30b8\u306b\u5bfe\u3057\u3066\u8981\u6c42\u3092\u9001\u4fe1\u3057\u3066\u3001\u5b9f\u884c\u3059\u308b\u30bf\u30b9\u30af\u306e\u6307\u793a\u3092\u53d6\u5f97\u3059\u308b\u7121\u9650\u30eb\u30fc\u30d7\u3067\u3059\u3002
\u56f313: \u30bf\u30b9\u30af\u306e\u8d77\u52d5<\/figcaption><\/figure>\n

\u653b\u6483\u8005\u306f\u3001\u30b3\u30de\u30f3\u30c9\u306e\u5b9f\u884c\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3001Windows OS\u306e\u518d\u8d77\u52d5\u3001\u73fe\u5728\u306e\u30bf\u30b9\u30af\u306e\u7d42\u4e86\u3001Windows OS\u306e\u30b7\u30e3\u30c3\u30c8\u30c0\u30a6\u30f3\u306a\u3069\u3001\u6a19\u7684\u30b7\u30b9\u30c6\u30e0\u4e0a\u3067\u8907\u6570\u306e\u30bf\u30b9\u30af\u3092\u5b9f\u884c\u3067\u304d\u307e\u3059(\u56f314)\u3002<\/p>\n

\"\u3053\u306e\u56f3\u306f\u3001Download\u3001Exectue\u3001Terminate\u3001Reboot\u3001Shutdown\u306a\u3069\u3001\u6a19\u7684\u30de\u30b7\u30f3\u3067\u5b9f\u884c\u53ef\u80fd\u306a\u30b3\u30de\u30f3\u30c9\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002
\u56f314: \u6a19\u7684\u30de\u30b7\u30f3\u3067\u5b9f\u884c\u53ef\u80fd\u306a\u30b3\u30de\u30f3\u30c9<\/figcaption><\/figure>\n

AutoIT\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0\u30fc<\/strong><\/h2>\n

JScript RAT\u306e\u767a\u898b\u76f4\u5f8c\u306e2020\u5e744\u670830\u65e5\u306b\u3001\u79c1\u305f\u3061\u306f\u540c\u3058\u8106\u5f31\u6027CVE-2019-0752\u3092\u4f7f\u7528\u3057\u3066dark[.]crypterfile[.]com<\/span>\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3055\u308c\u305f2.exe<\/span>\u30d5\u30a1\u30a4\u30eb\u3092\u8abf\u67fb\u3057\u307e\u3057\u305f(\u56f315)\u3002\u3053\u306e\u9805\u3067\u306f\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305fAutoIT\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5206\u6790\u3057\u307e\u3059\u3002<\/p>\n

\"\u3053\u306e\u30b3\u30de\u30f3\u30c9\u306f\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305fAutoIT\u30b5\u30f3\u30d7\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u8d77\u52d5\u3059\u308b\u305f\u3081\u306bCVE-2019-0752\u8106\u5f31\u6027\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308bPowerShell\u30b3\u30de\u30f3\u30c9\u306e\u30bb\u30c3\u30c8\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002
\u56f315: AutoIT\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0\u30fc\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3068\u8d77\u52d5\u306b\u4f7f\u7528\u3055\u308c\u308b\u30b3\u30de\u30f3\u30c9<\/figcaption><\/figure>\n

\u6280\u8853\u5206\u6790<\/h4>\n

Portable Executable (PE)\u30d5\u30a1\u30a4\u30eb\u3092\u9006\u30a2\u30bb\u30f3\u30d6\u30eb\u3057\u305f\u3068\u3053\u308d\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305fAutoIT\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u5b58\u5728\u3059\u308b\u3068\u3044\u3046\u30d2\u30f3\u30c8\u304c\u898b\u3064\u304b\u308a\u307e\u3057\u305f\u3002\u30b3\u30fc\u30c9\u306b\u306f\u3001PE\u30d5\u30a1\u30a4\u30eb\u3092\u30c7\u30d0\u30c3\u30ac\u30fc\u3068\u3068\u3082\u306b\u5b9f\u884c\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u30c1\u30a7\u30c3\u30af\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3057\u305f(\u56f316)\u3002\u5b9f\u884c\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u300cThis is a third party compiled AutoIT script<\/span>\u300d(\u3053\u308c\u306f\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u88fd\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305fAutoIT\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u3059)\u3068\u3044\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u542b\u3080\u30e1\u30c3\u30bb\u30fc\u30b8\u30dc\u30c3\u30af\u30b9\u304c\u8868\u793a\u3055\u308c\u307e\u3059(\u56f317)\u3002<\/p>\n

\"\u3053\u306e\u56f3\u306f\u3001PE\u30d5\u30a1\u30a4\u30eb\u3092\u30c7\u30d0\u30c3\u30ac\u30fc\u3068\u3068\u3082\u306b\u5b9f\u884c\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u30b3\u30fc\u30c9\u5185\u306e\u30c1\u30a7\u30c3\u30af\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u7279\u306b\u8208\u5473\u6df1\u3044\u306e\u304c\u3001\u30d4\u30f3\u30af\u3067\u793a\u3057\u305f\u884c\u3067\u3059\u3002
\u56f316: \u30c7\u30d0\u30c3\u30ac\u30fc\u30c1\u30a7\u30c3\u30af<\/figcaption><\/figure>\n
\"\u3053\u308c\u306f\u3001\u30c1\u30a7\u30c3\u30af\u306b\u5fdc\u3058\u3066\u8868\u793a\u3055\u308c\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u30dc\u30c3\u30af\u30b9\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002
\u56f317: \u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305fAutoIT\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u5b58\u5728\u3092\u793a\u3059\u30e1\u30c3\u30bb\u30fc\u30b8<\/figcaption><\/figure>\n

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\"\u3053\u306e\u56f3\u306f\u3001AutoIT\u30b9\u30af\u30ea\u30d7\u30c8\u9006\u30b3\u30f3\u30d1\u30a4\u30e9\u3092\u4f7f\u7528\u3057\u305f\u30b3\u30fc\u30c9\u306e\u9006\u30b3\u30f3\u30d1\u30a4\u30eb\u5f8c\u306e\u72b6\u614b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u7d50\u679c\u306f2\u3064\u306e\u90e8\u5206\u306b\u5206\u304b\u308c\u3066\u3044\u307e\u3059\u3002\u6700\u521d\u306e\u90e8\u5206\u3067\u306f\u30b7\u30b9\u30c6\u30e0\u60c5\u5831\u306e\u53d6\u5f97\u3092\u5236\u5fa1\u3057\u3001\u3082\u3046\u4e00\u65b9\u306e\u90e8\u5206\u3067\u306f\u30b9\u30af\u30ea\u30d7\u30c8\u30d9\u30fc\u30b9\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002
\u56f318: \u60aa\u610f\u306e\u3042\u308bAutoIT\u30b9\u30af\u30ea\u30d7\u30c8<\/figcaption><\/figure>\n

\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4f7f\u7528\u3059\u308b\u7406\u7531<\/strong><\/h2>\n

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\u3055\u3089\u306b\u3001\u653b\u6483\u8005\u306f\u591a\u69d8\u306a\u624b\u6cd5\u304a\u3088\u3073\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3001\u60aa\u610f\u306e\u3042\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u96e3\u8aad\u5316\u3067\u304d\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u653b\u6483\u8005\u304c\u3059\u3070\u3084\u304f\u6210\u679c\u3092\u5f97\u308b\u3053\u3068\u3092\u4e3b\u306b\u6c42\u3081\u3066\u3044\u308b\u306e\u3067\u3042\u308c\u3070Microsoft\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u3088\u3046\u306a\u975e\u5e38\u306b\u5358\u7d14\u306a\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3067\u304d\u3001\u307e\u305f\u306f\u30a2\u30ca\u30ea\u30b9\u30c8\u304c\u96e3\u8aad\u5316\u306e\u89e3\u9664\u306b\u82e6\u6226\u3059\u308b\u3088\u3046\u306a\u975e\u5e38\u306b\u5f37\u529b\u306a\u96e3\u8aad\u5316\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3082\u307e\u305f\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u3044\u304b\u306b\u67d4\u8edf\u3067\u3042\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u6700\u5f8c\u306b\u3001\u60aa\u610f\u306e\u3042\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u306f\u3001\u653b\u6483\u8005\u306f\u5fc5\u8981\u3067\u3042\u308c\u3070\u975e\u5e38\u306b\u5f37\u529b\u306a\u96e3\u8aad\u5316\u3092\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u60aa\u610f\u306e\u3042\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3055\u307e\u3056\u307e\u306a\u691c\u77e5\u3092\u56de\u907f\u3057\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u5bfe\u7b56\u30c6\u30af\u30ce\u30ed\u30b8\u3092\u8fc2\u56de\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u30b9\u30af\u30ea\u30d7\u30c8\u30d9\u30fc\u30b9\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u304c\u9632\u5fa1\u5074\u306b\u3088\u308a\u691c\u77e5\u3055\u308c\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u3068\u3057\u3066\u30bf\u30b0\u4ed8\u3051\u3055\u308c\u3066\u3082\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u8a00\u8a9e\u3092\u4f7f\u7528\u3057\u3066\u3044\u308c\u3070\u3001\u653b\u6483\u8005\u306f\u7c21\u5358\u304b\u3064\u3059\u3070\u3084\u304f\u65b0\u305f\u306a\u4e9c\u7a2e\u3092\u958b\u767a\u3057\u3001\u73fe\u5728\u306e\u691c\u77e5\u3092\u56de\u907f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u7d50\u8ad6<\/strong><\/h2>\n

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\u5b89\u5168\u306aWeb\u30d6\u30e9\u30a6\u30b8\u30f3\u30b0\u306e\u305f\u3081\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>\u306b\u5f93\u3044\u3001\u6700\u65b0Windows\u30db\u30b9\u30c8\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u7d44\u7e54\u3067\u3042\u308c\u3070\u611f\u67d3\u30ea\u30b9\u30af\u306f\u5927\u304d\u304f\u4f4e\u4e0b\u3057\u307e\u3059\u3002\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3001\u3053\u306e\u8105\u5a01\u304b\u3089\u3055\u3089\u306b\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u304a\u5ba2\u69d8\u306f\u5f0a\u793e\u306eIPS\u30b7\u30b0\u30cd\u30c1\u30e355438\u306b\u3088\u308a\u3001CVE-2019-0752\u8106\u5f31\u6027\u304b\u3089\u5b88\u3089\u308c\u3066\u3044\u307e\u3059\u3002URL\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3001WildFire\u3082\u3053\u3053\u3067\u8aac\u660e\u3057\u305f\u653b\u6483\u304b\u3089\u304a\u5ba2\u69d8\u3092\u4fdd\u8b77\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

IOC<\/strong><\/h2>\n

JScript\u306e\u30b5\u30f3\u30d7\u30eb<\/strong><\/h2>\n

SHA256\u30cf\u30c3\u30b7\u30e5<\/h4>\n

c.js:<\/p>\n

751D161ED4AFD822925C0373395F014578F166467D20A4B1ADFDB27FD0A83C36<\/span><\/p>\n

loader.jse:<\/p>\n

CCCF25DCD1FA16017B2ACCF4BC501BE583824423FC3A09779116AE07D833F2B2<\/span><\/p>\n

HTTP URL<\/h4>\n

hxxp:\/\/assurancetemporaireenligne[.]com\/c[.]js<\/span><\/p>\n

hxxp:\/\/seemee[.]ddns[.]net\/loader\/loader2\/www\/loader[.]php<\/span><\/p>\n

hxxp:\/\/seemee[.]ddns[.]net\/loader\/loader2\/www\/cmd[.]php<\/span><\/p>\n

AutoIT\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0\u30fc\u306e\u30b5\u30f3\u30d7\u30eb<\/strong><\/h2>\n

SHA256\u30cf\u30c3\u30b7\u30e5<\/h4>\n

2.exe:<\/p>\n

BA60EFE2E939DA16E3D240732FDA286FBD3DB3A0F06CB12D7042C7FAC9B82B86<\/span><\/p>\n

HTTP URL<\/h4>\n

hxxp:\/\/dark[.]crypterfile[.]com\/2[.]exe<\/span><\/p>\n

hxxp:\/\/dark[.]crypterfile[.]com\/1\/desktop[.]exe<\/span><\/p>\n

hxxp:\/\/dark[.]crypterfile[.]com\/1\/99[.]exe<\/span><\/p>\n

hxxp:\/\/dark[.]crypterfile[.]com\/1\/Calc[.]vbs<\/span><\/p>\n

hxxp:\/\/dark[.]crypterfile[.]com\/1\/calculator[.]exe<\/span><\/p>\n

hxxp:\/\/dark[.]crypterfile[.]com\/1\/calc[.]exe<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

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