{"id":106864,"date":"2016-08-21T17:00:11","date_gmt":"2016-08-22T00:00:11","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=106864"},"modified":"2020-04-27T16:49:20","modified_gmt":"2020-04-27T23:49:20","slug":"unit42-vb-dropper-and-shellcode-for-hancitor-reveal-new-techniques-behind-uptick","status":"publish","type":"post","link":"https:\/\/unit42.paloaltonetworks.com\/ja\/unit42-vb-dropper-and-shellcode-for-hancitor-reveal-new-techniques-behind-uptick\/","title":{"rendered":"Hancitor\u306eVB\u30c9\u30ed\u30c3\u30d1\u30fc\u304a\u3088\u3073\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u304c\u653b\u6483\u5897\u52a0\u306e\u80cc\u5f8c\u306b\u6f5c\u3080\u65b0\u3057\u3044\u6280\u6cd5\u3092\u660e\u3089\u304b\u306b"},"content":{"rendered":"

\u6982\u8981<\/h2>\n

Hancitor\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0\u30fc\u306f\u30012016\u5e746\u6708\u306e\u5927\u898f\u6a21\u653b\u6483\u4ee5\u964d\u306f\u6bd4\u8f03\u7684\u9759\u304b\u3067\u3057\u305f\u3002\u3057\u304b\u3057\u5148\u9031\u3001Palo Alto Networks AutoFocus\u306b\u3088\u3063\u3066\u3001\u8abf\u67fb\u3092\u3057\u305f\u3068\u3053\u308d\u3001Hancitor\u30de\u30eb\u30a6\u30a7\u30a2\u30d5\u30a1\u30df\u30ea\u306e\u5927\u5e45\u306a\u914d\u4fe1\u5897\u52a0\u3092\u767a\u898b\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306fH1N1\u304b\u3089Pony\u5b9f\u884c\u53ef\u80fd\u30d5\u30a1\u30a4\u30eb\u304a\u3088\u3073Vawtrak\u5b9f\u884c\u53ef\u80fd\u30d5\u30a1\u30a4\u30eb\u306e\u914d\u4fe1\u306b\u79fb\u884c\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u4e26\u884c\u3057\u3066\u3001\u540c\u69d8\u306e\u6d3b\u52d5\u3092\u78ba\u8a8d\u3057\u305f\u3068\u3044\u3046\u30ec\u30dd\u30fc\u30c8\u3092\u305d\u306e\u4ed6\u306e\u4f01\u696d\u304a\u3088\u3073\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u304b\u3089\u53d7\u3051\u53d6\u3063\u305f\u305f\u3081\u3001\u3055\u3089\u306a\u308b\u8abf\u67fb\u3092\u5b9f\u65bd\u3057\u307e\u3057\u305f\u3002<\/p>\n

\n
\"\u56f31<\/a>
\u56f31 2016\u5e747\u6708\u4ee5\u964d\u306eHancitor\u306e\u65b0\u3057\u3044\u30bb\u30c3\u30b7\u30e7\u30f3\u306eAutoFocus\u30d3\u30e5\u30fc<\/figcaption><\/figure>\n<\/div>\n

\u3053\u308c\u3089\u306e\u6587\u66f8\u306e\u914d\u4fe1\u65b9\u6cd5\u306f\u4e00\u822c\u7684\u306a\u60aa\u610f\u306e\u3042\u308b\u96fb\u5b50\u30e1\u30fc\u30eb\u653b\u6483\u3068\u540c\u3058\u3067\u3057\u305f\u3002\u6700\u8fd1\u306e\u8acb\u6c42\u66f8\u306b\u95a2\u3059\u308b\u4ef6\u540d\u3001\u307e\u305f\u306f\u671f\u9650\u5207\u308c\u306e\u8acb\u6c42\u66f8\u306a\u3069\u88ab\u5bb3\u8005\u306e\u6c17\u3092\u5f15\u304f\u4e8b\u67c4\u306b\u30c8\u30e9\u30c3\u30d7\u304c\u4ed5\u639b\u3051\u3089\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u30c8\u30e9\u30c3\u30d7\u306f\u6211\u3005\u306e\u4e88\u60f3\u901a\u308a\u3001\u6dfb\u4ed8\u3055\u308c\u305f\u5b9f\u969b\u306e\u6587\u66f8\u306b\u30de\u30eb\u30a6\u30a7\u30a2\u3092\u30c9\u30ed\u30c3\u30d7\u3059\u308b\u305f\u3081\u306eVisual Basic\uff08VB\uff09\u30de\u30af\u30ed\u306b\u8208\u5473\u6df1\u3044\u65b9\u6cd5\u3092\u767a\u898b\u3057\u307e\u3057\u305f\u3002<\/p>\n

\u3053\u306e\u30d6\u30ed\u30b0\u3067\u306f\u30c9\u30ed\u30c3\u30d7\u6280\u6cd5\u3092\u8a73\u7d30\u306b\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3053\u306e\u6280\u6cd5\u306f\u6280\u8853\u7684\u306b\u306f\u65b0\u3057\u304f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u3053\u306e\u3088\u3046\u306a\u65b9\u6cd5\u3067\u4f7f\u7528\u3055\u308c\u308b\u306e\u3092\u78ba\u8a8d\u3057\u305f\u306e\u306f\u521d\u3081\u3066\u3067\u3057\u305f\u3002\u6700\u7d42\u76ee\u6a19\u306f\u3001\u30d0\u30a4\u30ca\u30ea\u304c\u57cb\u3081\u8fbc\u307e\u308c\u305f\u5834\u6240\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u3067\u3059\u304c\u3001\u3053\u306e\u6295\u7a3f\u3067\u306f\u30de\u30af\u30ed\u304a\u3088\u3073\u57cb\u3081\u8fbc\u307e\u308c\u305f\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u3082\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n

\u30ef\u30fc\u30c9\u6587\u66f8<\/h3>\n

\u3053\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3067\u306f\u3001SHA256\u30cf\u30c3\u30b7\u30e5\u201803aef51be133425a0e5978ab2529890854ecf1b98a7cf8289c142a62de7acd1a\u2019\u3092\u542b\u3080\u30d5\u30a1\u30a4\u30eb\u3092\u89b3\u5bdf\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u300c\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u6709\u52b9\u300d\u306b\u3057\u3066\u60aa\u610f\u306e\u3042\u308b\u30de\u30af\u30ed\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306e\u6a19\u6e96\u7684\u306a\u7b56\u7565\u3092\u542b\u3080\u5178\u578b\u7684\u306aMS Office OLE2 Word\u6587\u66f8\u3067\u3059\u3002<\/p>\n

\n
\"\u56f32<\/a>
\u56f32 \u60aa\u610f\u306e\u3042\u308b\u6587\u66f8\u304c\u4f7f\u7528\u3059\u308b\u7b56\u7565<\/figcaption><\/figure>\n<\/div>\n

Visual Basic\u30a8\u30c7\u30a3\u30bf\u30fc\u3092\u958b\u304f\u3068\u3001\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u306e2\u3064\u306e\u30d5\u30a9\u30fc\u30e0\u304a\u3088\u30731\u3064\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n

\n
\"\u56f33<\/a>
\u56f33 VBProject\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8<\/figcaption><\/figure>\n<\/div>\n

\u60aa\u610f\u306e\u3042\u308b\u30de\u30af\u30ed<\/h3>\n

Visual Basic\u306fMicrosoft Windows API\u30b3\u30fc\u30eb\u3092\u76f4\u63a5\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u6570\u591a\u304f\u306e\u8208\u5473\u6df1\u3044\u95a2\u6570\u3001\u307e\u3055\u306b\u3053\u306eVB\u30b3\u30fc\u30c9\u304c\u5b9f\u884c\u3057\u3066\u3044\u308b\u95a2\u6570\u3092\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\n
\"\u56f34<\/a>
\u56f34 VB\u30b3\u30fc\u30c9\u5185\u306eMicrosoft Windows API\u30b3\u30fc\u30eb<\/figcaption><\/figure>\n<\/div>\n

\u3053\u3053\u3067\u5206\u304b\u308b\u3088\u3046\u306b\u3001\u30de\u30af\u30ed\u306b\u306f\u3001\u3053\u308c\u304c\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u30b7\u30b9\u30c6\u30e0\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u5224\u5b9a\u3059\u308b\u30ed\u30b8\u30c3\u30af\u304c\u542b\u307e\u308c\u3066\u3044\u3066\u300132\u30d3\u30c3\u30c8\u307e\u305f\u306f64\u30d3\u30c3\u30c8\u306e\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u6b63\u3057\u304f\u5b9f\u884c\u3059\u308b\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u3082\u8208\u5473\u6df1\u3044\u30b3\u30fc\u30eb\u306fVirtualAlloc()\u3001RtlMoveMemory()\u3001\u304a\u3088\u3073CallWindowProcA()\u3067\u3059\u3002<\/p>\n

\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u3092\u6700\u521d\u306b\u89b3\u5bdf\u3057\u59cb\u3081\u305f\u3068\u304d\u3001\u4e3b\u306b\u30da\u30a4\u30ed\u30fc\u30c9\u306e\u683c\u7d0d\u5834\u6240\u306b\u95a2\u5fc3\u3092\u5bc4\u305b\u305f\u305f\u3081\u3001\u30de\u30af\u30ed\u304c\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3059\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306e\u30c7\u30d0\u30c3\u30b0\u3092\u59cb\u3081\u307e\u3057\u305f\u3002\u554f\u984c\u306e\u30da\u30a4\u30ed\u30fc\u30c9\u306fbase64\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u3066\u3044\u3066\u3001\u2018choline\u2019\u30c6\u30ad\u30b9\u30c8\u30dc\u30c3\u30af\u30b9\u306e\u2018Text\u2019\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u5024\u3068\u3057\u3066VBProject\u306e\u30d5\u30a9\u30fc\u30e0\u5185\u306b\u57cb\u3081\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u8ffd\u8a18\u3068\u3057\u3066\u3001\u672c\u5f53\u306b\u8208\u5473\u6df1\u3044\u306e\u306f\u3001\u4f5c\u8005\u304c\u72ec\u81ea\u306ebase64\u30c7\u30b3\u30fc\u30c0\u3092\u5b9f\u969b\u306bVB\u3067\u66f8\u304d\u8fbc\u3080\u969b\u306b\u82e6\u52b4\u3057\u3066\u3044\u308b\u3053\u3068\u3067\u3059\u3002\u8aad\u8005\u304c\u8abf\u67fb\u3067\u304d\u308b\u3088\u3046\u306b\u3053\u308c\u3092\u6f14\u7fd2\u3068\u3057\u3066\u6b8b\u3057\u3066\u304a\u304d\u307e\u3059\u304c\u3001\u3053\u308c\u306fbase-N\u30a8\u30f3\u30b3\u30fc\u30c9\u304c\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3059\u308b\u304b\u306e\u6709\u76ca\u306a\u6982\u8981\u3067\u3059\u3002\u3053\u306e\u30de\u30af\u30ed\u5185\u306e\u2018maria\u2019\u30e2\u30b8\u30e5\u30fc\u30eb\u5168\u4f53\u304cbase64\u30c7\u30b3\u30fc\u30c0\u3067\u3059\u3002<\/p>\n

\u30de\u30af\u30edbase64\u306f\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u30ed\u30fc\u30ab\u30eb\u30d0\u30a4\u30c8\u914d\u5217\u306b\u30c7\u30b3\u30fc\u30c9\u3057\u3001\u6700\u521d\u306eAPI\u30b3\u30fc\u30eb\u3067\u3042\u308bVirtualAlloc()\u306b\u5230\u9054\u3057\u307e\u3059\u3002<\/p>\n

\n
\"\u56f35<\/a>
\u56f35 \u5272\u308a\u5f53\u3066\u5bfe\u8c61\u30e1\u30e2\u30ea\u30da\u30fc\u30b8<\/figcaption><\/figure>\n<\/div>\n

\u3053\u306e\u30b3\u30fc\u30eb\u306f\u3001\u8aad\u307f\u53d6\u308a\u3001\u66f8\u304d\u8fbc\u307f\u3001\u304a\u3088\u3073\u5b9f\u884c\uff08RWX\uff09\u6a29\u9650\u306e\u3042\u308b\u30e1\u30e2\u30ea\u306e\u7279\u5b9a\u306e\u30da\u30fc\u30b8\u30920x59B0000\u3067\u30b3\u30df\u30c3\u30c8\u3057\u307e\u3059\u3002<\/p>\n

\n
\"\u56f36<\/a>
\u56f36 RWX\u6a29\u9650\u306e\u3042\u308b\u65b0\u3057\u3044\u30e1\u30e2\u30ea\u30da\u30fc\u30b8<\/figcaption><\/figure>\n<\/div>\n

\u305d\u306e\u5f8c\u3001VB\u30de\u30af\u30ed\u306f\u5f15\u304d\u7d9a\u304d\u6b21\u306e\u30b3\u30fc\u30eb\u3092RtlMoveMemory\u306b\u8a2d\u5b9a\u3057\u3001\u524d\u306e\u30b3\u30fc\u30eb\u306e\u30e1\u30e2\u30ea\u306e\u5834\u6240\u304a\u3088\u3073base64\u30c7\u30b3\u30fc\u30c9\u3055\u308c\u305f\u30d0\u30a4\u30c8\u914d\u5217\u3092\u4f7f\u7528\u3057\u3066\u30b3\u30fc\u30eb\u3057\u307e\u3059\u3002<\/p>\n

\n
\"\u56f37<\/a>
\u56f37 Base64\u30c7\u30b3\u30fc\u30c9\u3055\u308c\u305f\u30d0\u30a4\u30c8\u914d\u5217<\/figcaption><\/figure>\n<\/div>\n

WINWORD.EXE\u30d7\u30ed\u30bb\u30b9\u306e\u30e1\u30e2\u30ea\u306e\u305d\u306e\u9818\u57df\u3092\u30c0\u30f3\u30d7\u3057\u3001\u8ee2\u9001\u3055\u308c\u305f\u30d0\u30a4\u30c8\u3068\u6bd4\u8f03\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u7d20\u65e9\u304f\u691c\u8a3c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\n
\"\u56f38<\/a>
\u56f38 \u30c0\u30f3\u30d7\u3057\u305f\u30e1\u30e2\u30ea\u304b\u3089\u30d0\u30a4\u30c8\u4e00\u81f4\u3092\u78ba\u8a8d<\/figcaption><\/figure>\n<\/div>\n

\u3053\u308c\u307e\u3067\u306b\u30b3\u30fc\u30c9\u304c\u5b9f\u884c\u53ef\u80fd\u30e1\u30e2\u30ea\u306b\u30b3\u30d4\u30fc\u3055\u308c\u305f\u305f\u3081\u3001\u30de\u30af\u30ed\u306f\u6700\u5f8c\u306eAPI\u30b3\u30fc\u30ebCallWindowProcA()\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u30b3\u30fc\u30eb\u306b\u6307\u5b9a\u3059\u308b\u6700\u521d\u306e\u5024\u306f\u3001\u3053\u306e\u30b3\u30fc\u30c9\u5185\u306e\u95a2\u6570\u30dd\u30a4\u30f3\u30bf\u3067\u3042\u308b\u30e1\u30e2\u30ea\u30aa\u30d5\u30bb\u30c3\u30c8\u306e+2214\u3067\u3059\u30022\u756a\u76ee\u306e\u5024\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u30d1\u30b9\u306e\u6587\u5b57\u5217\u3067\u3001\u30cf\u30f3\u30c9\u30eb\u7528\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30a2\u30af\u30b7\u30e7\u30f3\u306b\u3088\u3063\u3066\u3001\u30b3\u30fc\u30c9\u5b9f\u884c\u304c\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3055\u308c\u307e\u3059\u3002<\/p>\n

\n
\"\u56f39<\/a>
\u56f39 \u5b9f\u884c\u3092\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u306b\u6e21\u3059<\/figcaption><\/figure>\n<\/div>\n

\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9<\/h3>\n

WINWORD.EXE\u306b\u63a5\u7d9a\u3057\u3001\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u306e\u5165\u53e3\u3067\u3042\u308b\u30e1\u30e2\u30ea\u4f4d\u7f6e+2214 (0x8A6)\u306e\u30aa\u30d5\u30bb\u30c3\u30c8\u3067\u505c\u6b62\u3059\u308b\u3068\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u5b9f\u884c\u304c\u3053\u306e\u30b3\u30fc\u30c9 \u30d1\u30b9\u3078\u79fb\u884c\u3059\u308b\u306e\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n

\n
\"\u56f310<\/a>
\u56f310 \u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u304c\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b<\/figcaption><\/figure>\n<\/div>\n

\u3053\u3053\u304b\u3089\u3001\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u306f\u30d7\u30ed\u30bb\u30b9\u74b0\u5883\u30d6\u30ed\u30c3\u30af(PEB)\u3092\u5217\u6319\u3059\u308b\u3053\u3068\u3067\u3001LdrLoadDLL()\u95a2\u6570(LoadLibraryEx()\u95a2\u6570\u3068\u540c\u69d8)\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u53d6\u5f97\u3057\u3001\u305d\u306e\u5f8c\u3001kernel32.dll\u5185\u3067\u4f7f\u7528\u3059\u308b\u95a2\u6570\u3092\u63a2\u3057\u59cb\u3081\u307e\u3059\u3002<\/p>\n

\u63a2\u3057\u3066\u3044\u308b\u95a2\u6570\u306e\u5024\u306f\u3001\u305d\u306e\u4ed6\u306e\u5024\u3068\u3068\u3082\u306b\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u306b\u57cb\u3081\u8fbc\u307e\u308c\u3001\u5f8c\u3067\u4f7f\u7528\u3059\u308b\u305f\u3081\u306e\u30b9\u30bf\u30c3\u30af\u4e0a\u306b\u4f5c\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n

\n
\"\u56f311<\/a>
\u56f311 \u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u306b\u57cb\u3081\u8fbc\u307e\u308c\u305f\u30c7\u30fc\u30bf<\/figcaption><\/figure>\n<\/div>\n

\u3053\u308c\u3089\u306e\u7b26\u53f7\u5316\u3055\u308c\u305f\u540d\u524d\u306e\u30bb\u30c3\u30c8\u306b\u7d9a\u304d\u3001\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u304c\u6b21\u306esyscall\u306b\u95a2\u5fc3\u3092\u793a\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002CloseHandle()\u3001ReadFile()\u3001GetFileSize()\u3001VirtualFree()\u3001VirtualAlloc()\u3001\u304a\u3088\u3073CreateFileA()\u3002API\u30b3\u30fc\u30eb\u3054\u3068\u306b\u3001\u95a2\u6570\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u691c\u7d22\u3057\u3001\u305d\u308c\u3092\u30b9\u30bf\u30c3\u30af\u306b\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/p>\n

\u6b21\u306b\u3001\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u306fWord\u6587\u66f8\u4e0a\u3067CreateFileA()\u3092\u547c\u3073\u51fa\u3057\u3001\u623b\u3055\u308c\u305f\u30cf\u30f3\u30c9\u30eb\u3092\u53d7\u4fe1\u3057\u307e\u3059\u3002\u305d\u308c\u306f\u3001\u30d5\u30a1\u30a4\u30eb \u30b5\u30a4\u30ba\u7528\u306eGetFileSize()\u306b\u6e21\u3055\u308c\u3001\u305d\u306e\u5f8c\u7d9a\u3044\u3066VirtualAlloc()\u306b\u6e21\u3055\u308c\u3001\u30d5\u30a1\u30a4\u30eb \u30b3\u30f3\u30c6\u30f3\u30c4(0x2270000)\u7528\u306e\u30e1\u30e2\u30ea \u30bb\u30af\u30b7\u30e7\u30f3\u304c\u4f5c\u6210\u3055\u308c\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u305d\u306e\u30e1\u30e2\u30ea\u4f4d\u7f6e\u306b\u8aad\u307f\u8fbc\u307f\u3001\u30cf\u30f3\u30c9\u30eb\u3092\u9589\u3058\u307e\u3059\u3002<\/p>\n

\n
\"\u56f312<\/a>
\u56f312 \u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u306b\u3088\u308b\u5375\u63a2\u3057<\/figcaption><\/figure>\n<\/div>\n

\u30b3\u30d4\u30fc\u304c\u30e1\u30e2\u30ea\u3078\u30ed\u30fc\u30c9\u3055\u308c\u308b\u3068\u3001\u30de\u30b8\u30c3\u30af \u30d0\u30a4\u30c80x504F4C41\u306e\u30e1\u30e2\u30ea\u3092\u901a\u3058\u3066\u63a2\u7d22\u30d7\u30ed\u30bb\u30b9\u304c\u958b\u59cb\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u65b0\u3057\u3044\u30e1\u30e2\u30ea \u30da\u30fc\u30b8\u306e0x022836F3\u306b\u3042\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n

\n
\"\u56f313<\/a>
\u56f313 \u914d\u7f6e\u3055\u308c\u305f\u5375<\/figcaption><\/figure>\n<\/div>\n

\u3053\u306e\u6642\u70b9\u3067\u3001\u30d0\u30a4\u30ca\u30ea\u3089\u3057\u3044\u3082\u306e\u3092\u898b\u3064\u3051\u307e\u3057\u305f\u3002\u6700\u7d42\u30b9\u30c6\u30c3\u30d7\u3067\u306f\u3001\u305d\u308c\u3092\u30c7\u30b3\u30fc\u30c9\u3059\u308b\u3060\u3051\u3067\u3059\u3002\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u3092\u898b\u308b\u3068\u3001\u305d\u308c\u304c0x22836FF\u3067\u59cb\u307e\u308b\u5404\u30d0\u30a4\u30c8\u306b0x3\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306e\u4f8b\u3067\u306f\u3001\u4e0b\u306b\u793a\u3059\u3088\u3046\u306b\u3001\u305d\u306e\u5f8c\u3001\u305d\u308c\u304c0x13\u3067XOR\u3055\u308c\u307e\u3059\u3002<\/p>\n

\n
\"\u56f314<\/a>
\u56f314 XOR\u306b\u3088\u308b\u5fa9\u53f7\u5316<\/figcaption><\/figure>\n<\/div>\n

\u30ab\u30a6\u30f3\u30bf\u304c0x13AAC (80556)\u306b\u9054\u3059\u308b\u3068\u3001\u5404\u30d0\u30a4\u30c8\u3092\u64cd\u4f5c\u3057\u3001\u30d0\u30a4\u30ca\u30ea\u3092\u5fa9\u53f7\u5316\u3059\u308b\u305f\u3081\u306e\u4e00\u9023\u306e\u30b5\u30d6\u30eb\u30fc\u30c1\u30f3\u304c\u958b\u59cb\u3055\u308c\u307e\u3059\u3002\u5fa9\u53f7\u5316\u30eb\u30fc\u30c1\u30f3\u306e\u5f8c\u306b\u30d6\u30ec\u30fc\u30af\u30dd\u30a4\u30f3\u30c8\u3092\u8a2d\u5b9a\u3057\u3001\u30e1\u30e2\u30ea\u4f4d\u7f6e\u3092\u78ba\u8a8d\u3059\u308b\u3068\u3001\u30d0\u30a4\u30ca\u30ea\u304c\u5fa9\u53f7\u5316\u3055\u308c\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u6642\u70b9\u3067\u3001\u3055\u3089\u306b\u5206\u6790\u3059\u308b\u305f\u3081\u306b\u30c0\u30f3\u30d7\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30c0\u30f3\u30d7\u3055\u308c\u305f\u30e1\u30e2\u30ea\u5185\u3067\u3001MZ\u30d8\u30c3\u30c0\u3068PE\u30d8\u30c3\u30c0\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n

\n
\"\u56f315<\/a>
\u56f315 \u30c7\u30b3\u30fc\u30c9\u3055\u308c\u305f\u30d0\u30a4\u30ca\u30ea<\/figcaption><\/figure>\n<\/div>\n

\u3053\u306e\u30c9\u30ed\u30c3\u30d1\u30fc\u3092\u4f7f\u7528\u3057\u3066\u5b9f\u884c\u3055\u308c\u308b\u3053\u306e\u7279\u5b9a\u306e\u653b\u6483\u6d3b\u52d5\u306e\u5834\u5408\u306f\u3001\u30d0\u30a4\u30ca\u30ea\u3092\u8d77\u52d5\u3059\u308b\u524d\u306b\u3001\u305d\u308c\u3092%TMP%\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u914d\u7f6e\u3057\u3001\u6700\u7d42\u7684\u306b\u305d\u308c\u81ea\u4f53\u3092\u2018%SYSTEMROOT%\/system32\/WinHost.exe\u2019\u306b\u66f8\u304d\u8fbc\u307f\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u6642\u70b9\u3067\u3001Hancitor\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0\u30fc\u306f\u5b8c\u5168\u306b\u88ab\u5bb3\u8005\u306e\u30de\u30b7\u30f3\u306b\u30ed\u30fc\u30c9\u3055\u308c\u3001\u305d\u3053\u3067\u3001\u3055\u3089\u306a\u308b\u60aa\u610f\u306e\u3042\u308b\u6d3b\u52d5\u306e\u5b9f\u884c\u306b\u9032\u307f\u307e\u3059\u3002<\/p>\n

\u7d50\u8ad6<\/h2>\n

\u30de\u30af\u30ed\u30d9\u30fc\u30b9\u306e\u624b\u6cd5\u306f\u6975\u3081\u3066\u4e00\u822c\u7684\u3067\u3059\u304c\u3001\u30de\u30af\u30ed \u30c9\u30ed\u30c3\u30d1\u30fc\u3068\u3068\u3082\u306b\u3053\u3053\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u624b\u6cd5\u306f\u8208\u5473\u6df1\u3044\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u3067\u3059\u3002\u30de\u30af\u30ed\u5185\u306e\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u305f\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u304b\u3089\u3001VB\u30b3\u30fc\u30c9\u5185\u3067\u30cd\u30a4\u30c6\u30a3\u30d6API\u30b3\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u5b9f\u884c\u6a29\u3092\u6e21\u3057\u3001Word\u6587\u66f8\u304b\u3089\u306e\u57cb\u3081\u8fbc\u307e\u308c\u305f\u30de\u30eb\u30a6\u30a7\u30a2\u3092\u898b\u3064\u3051\u3066\u5fa9\u53f7\u5316\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u65b0\u3057\u3044Hancitor\u306e\u4f7f\u3044\u65b9\u3067\u3042\u308a\u3001\u4eca\u5f8c\u3082\u6ce8\u610f\u6df1\u304f\u8ffd\u8de1\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

Palo Alto Networks\u306e\u304a\u5ba2\u69d8\u306f\u3001\u3053\u306e\u30d6\u30ed\u30b0\u3067\u8a73\u89e3\u3057\u305f\u30c9\u30ed\u30c3\u30d1\u30fc\u3068\u305d\u308c\u306b\u542b\u307e\u308c\u308bHancitor\u30da\u30a4\u30ed\u30fc\u30c9\u304b\u3089\u4fdd\u8b77\u3055\u308c\u307e\u3059\u3002AutoFocus Hancitor\u30bf\u30b0<\/a>\u3092\u901a\u3058\u3066\u3001\u5f15\u304d\u7d9a\u304d\u3053\u306e\u8105\u5a01\u3092\u8ffd\u8de1\u3067\u304d\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u3059\u3079\u3066\u306eHancitor\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0\u30fc \u30b5\u30f3\u30d7\u30eb\u306f\u3001WildFire\u3067\u60aa\u610f\u306e\u3042\u308b\u3082\u306e\u3068\u3057\u3066\u8b58\u5225\u3055\u308c\u307e\u3059\u3002Hancitor\u306b\u3088\u3063\u3066\u4f7f\u7528\u3055\u308c\u308b\u30c9\u30e1\u30a4\u30f3\u3082\u60aa\u610f\u306e\u3042\u308b\u3082\u306e\u3068\u3057\u3066\u5206\u985e\u3055\u308c\u307e\u3059\u3002<\/p>\n

\u8b1d\u8f9e<\/h3>\n

Hancitor\u30da\u30a4\u30ed\u30fc\u30c9\u306e\u8a73\u7d30\u306a\u5206\u6790\u306b\u3064\u3044\u3066\u306f\u3001Minerva Labs<\/a>\u306b\u3088\u308b\u3053\u306e\u8a18\u4e8b\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fb5\u5bb3\u306e\u5146\u5019<\/h3>\n

\u4ee5\u4e0b\u306f\u3001380,000\u3092\u8d85\u3048\u308b\u30bb\u30c3\u30b7\u30e7\u30f3\u304b\u3089\u3001\u4eca\u9031\u306e\u6700\u65b0\u306e\u653b\u6483\u6d3b\u52d5\u3067\u3082\u3063\u3068\u3082\u4e00\u822c\u7684\u306b\u89b3\u5bdf\u3055\u308c\u305f\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u4ef6\u540d\u3068\u30d5\u30a1\u30a4\u30eb\u540d\u306e\u4e00\u90e8\u3067\u3059\u3002\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u6b63\u898f\u8868\u73fe\u307e\u305f\u306f\u8868\u73fe\u306b\u3088\u3063\u3066\u7f6e\u304d\u63db\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n

\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u4ef6\u540d<\/h4>\n

<domain> invoice for <month><\/p>\n

levi.com invoice for august<\/p>\n

<domain> bill
\n<domain> deal
\n<domain> receipt
\n<domain> contract
\n<domain> invoice<\/p>\n

metlife.com bill
\nmetlife.com deal
\nmetlife.com receipt
\nmetlife.com contract
\nmetlife.com invoice<\/p>\n

\u30d5\u30a1\u30a4\u30eb\u540d<\/h4>\n

artifact[0-9]{9}.doc
\nbcbsde.com_contract.doc
\ncontract_[0-9]{6}.doc
\ngeneric.doc
\nprice_list.doc_[0-9]{6}.doc
\nreport_[0-9]{6}.doc<\/p>\n

\u3055\u3089\u306b\u3001\u5206\u6790\u4e2d\u306b\u3053\u308c\u3089\u306eC2\u30b3\u30fc\u30eb\u304c\u89b3\u5bdf\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306f\u3001\u5883\u754c\u3067\u2018\/(sl|zaopy)\/gate.php\u2019\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u691c\u51fa\u3067\u304d\u307e\u3059\u3002<\/p>\n

hxxp:\/\/betsuriin[.]com\/sl\/gate.php
\nhxxp:\/\/callereb[.]com\/zapoy\/gate.php
\nhxxp:\/\/evengsosandpa[.]ru\/ls\/gate.php
\nhxxp:\/\/felingdoar[.]ru\/sl\/gate.php
\nhxxp:\/\/gmailsign[.]info\/plasma\/gate.php
\nhxxp:\/\/hecksafaor[.]com\/zapoy\/gate.php
\nhxxp:\/\/heheckbitont[.]ru\/sl\/gate.php
\nhxxp:\/\/hianingherla[.]com\/sl\/gate.php
\nhxxp:\/\/hihimbety[.]ru\/sl\/gate.php
\nhxxp:\/\/meketusebet[.]ru\/sl\/gate.php
\nhxxp:\/\/mianingrabted[.]ru\/zapoy\/gate.php
\nhxxp:\/\/moatleftbet[.]com\/sl\/gate.php
\nhxxp:\/\/mopejusron[.]ru\/sl\/gate.php
\nhxxp:\/\/muchcocaugh[.]com\/sl\/gate.php
\nhxxp:\/\/ningtoparec[.]ru\/sl\/gate.php
\nhxxp:\/\/nodosandar[.]com\/ls\/gate.php
\nhxxp:\/\/nodosandar[.]com\/zapoy\/gate.php
\nhxxp:\/\/ritbeugin[.]ru\/ls\/gate.php
\nhxxp:\/\/rutithegde[.]ru\/sl\/gate.php
\nhxxp:\/\/surofonot[.]ru\/sl\/gate.php
\nhxxp:\/\/uldintoldhin[.]com\/sl\/gate.php
\nhxxp:\/\/unjustotor[.]com\/sl\/gate.php
\nhxxp:\/\/wassuseidund[.]ru\/sl\/gate.php<\/p>\n

\u4ee5\u4e0b\u306eYara\u30eb\u30fc\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u3053\u306e\u30d6\u30ed\u30b0\u3067\u8aac\u660e\u3057\u305f\u7279\u5b9a\u306e\u30c9\u30ed\u30c3\u30d1\u30fc\u3068\u624b\u6cd5\u3092\u691c\u51fa\u3067\u304d\u307e\u3059\u3002<\/p>\n

\n
rule hancitor_dropper : vb_win32api\r\n{\r\n  meta:\r\n    author = \"Jeff White - jwhite@paloaltonetworks @noottrak\"\r\n    date   = \"18AUG2016\"\r\n    hash1  = \"03aef51be133425a0e5978ab2529890854ecf1b98a7cf8289c142a62de7acd1a\"\r\n    hash2  = \"4b3912077ef47515b2b74bc1f39de44ddd683a3a79f45c93777e49245f0e9848\"\r\n    hash3  = \"a78972ac6dee8c7292ae06783cfa1f918bacfe956595d30a0a8d99858ce94b5a\"\r\n\r\n  strings:\r\n    $api_01 = { 00 56 69 72 74 75 61 6C 41 6C 6C 6F 63 00 }  \/\/ VirtualAlloc\r\n    $api_02 = { 00 52 74 6C 4D 6F 76 65 4D 65 6D 6F 72 79 00 }  \/\/ RtlMoveMemory\r\n    $api_04 = { 00 43 61 6C 6C 57 69 6E 64 6F 77 50 72 6F 63 41 00 }  \/\/ CallWindowProcAi\r\n    $magic  = { 50 4F 4C 41 }  \/\/ POLA\r\n\r\n  condition:\r\n    uint32be(0) == 0xD0CF11E0 and all of ($api_*) and $magic\r\n}\r\n<\/pre>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
\u6982\u8981 Hancitor\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0\u30fc\u306f\u30012016\u5e746\u6708\u306e\u5927\u898f\u6a21\u653b\u6483\u4ee5\u964d\u306f\u6bd4\u8f03\u7684\u9759\u304b\u3067\u3057\u305f\u3002\u3057\u304b\u3057\u5148\u9031\u3001Palo Alto Networks 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Hancitor\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0\u30fc\u306f\u30012016\u5e746\u6708\u306e\u5927\u898f\u6a21\u653b\u6483\u4ee5\u964d\u306f\u6bd4\u8f03\u7684\u9759\u304b\u3067\u3057\u305f\u3002\u3057\u304b\u3057\u5148\u9031\u3001Palo Alto Networks\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/unit42.paloaltonetworks.com\/ja\/unit42-vb-dropper-and-shellcode-for-hancitor-reveal-new-techniques-behind-uptick\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hancitor\u306eVB\u30c9\u30ed\u30c3\u30d1\u30fc\u304a\u3088\u3073\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u304c\u653b\u6483\u5897\u52a0\u306e\u80cc\u5f8c\u306b\u6f5c\u3080\u65b0\u3057\u3044\u6280\u6cd5\u3092\u660e\u3089\u304b\u306b\" \/>\n<meta property=\"og:description\" content=\"\u6982\u8981 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