{"id":126906,"date":"2023-02-01T16:55:00","date_gmt":"2023-02-02T00:55:00","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=126906"},"modified":"2024-07-30T19:32:17","modified_gmt":"2024-07-31T02:32:17","slug":"malware-detection-accuracy","status":"publish","type":"post","link":"https:\/\/origin-unit42.paloaltonetworks.com\/ja\/malware-detection-accuracy\/","title":{"rendered":"\u6a5f\u68b0\u5b66\u7fd2 \u5bfe \u30e1\u30e2\u30ea\u30fc\u5e38\u99d0\u578b\u30de\u30eb\u30a6\u30a7\u30a2"},"content":{"rendered":"

<\/a>\u6982\u8981<\/h2>\n

\u672c\u7a3f\u3067\u306f\u3001\u300c\u9ad8\u5ea6\u306aWildFire\u300d\u306b\u7d44\u307f\u8fbc\u307e\u308c\u305f\u30cf\u30a4\u30d1\u30fc\u30d0\u30a4\u30b6\u30fc\u30d9\u30fc\u30b9 \u30b5\u30f3\u30c9\u30dc\u30c3\u30af\u30b9\u304b\u3089\u30e1\u30e2\u30ea\u30fc\u30d9\u30fc\u30b9\u306e\u30a2\u30fc\u30c6\u30a3\u30d5\u30a1\u30af\u30c8(\u75d5\u8de1)\u3092\u53d6\u5f97\u3057\u3001\u3053\u308c\u3089\u306e\u30a2\u30fc\u30c6\u30a3\u30d5\u30a1\u30af\u30c8\u3092\u4e2d\u5fc3\u306b\u3057\u3066\u4f5c\u6210\u3055\u308c\u305f\u6a5f\u68b0\u5b66\u7fd2\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306b\u3064\u3044\u3066\u3001Unit 42\u306e\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u304c\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u4ee3\u66ff\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u56de\u907f\u6280\u8853\u3092\u4f7f\u3046\u30de\u30eb\u30a6\u30a7\u30a2\u3078\u306e\u691c\u51fa\u7cbe\u5ea6\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u8003\u6848\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n

\u672c\u30b7\u30ea\u30fc\u30ba\u306e\u307b\u304b\u306e\u8a18\u4e8b<\/a>\u3067\u3082\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u306e\u4f5c\u8005\u306f\u3001\u9759\u7684\u89e3\u6790\u3084\u30b5\u30f3\u30c9\u30dc\u30c3\u30af\u30b9\u3068\u3044\u3063\u305f\u6226\u7565\u3092\u7121\u52b9\u5316\u3059\u308b\u305f\u3081\u65e5\u3005\u6b3a\u779e\u8853\u3092\u7814\u947d\u3057\u3066\u3044\u307e\u3059\u3002\u30d1\u30c3\u30ad\u30f3\u30b0\u3084\u30b5\u30f3\u30c9\u30dc\u30c3\u30af\u30b9\u56de\u907f\u306a\u3069\u3001\u6280\u8853\u306e\u958b\u767a\u3068\u5909\u5316\u306f\u305f\u3086\u307f\u306a\u304f\u3064\u3065\u3044\u3066\u304a\u308a\u3001\u307e\u3055\u306b\u30e2\u30b0\u30e9\u305f\u305f\u304d\u306e\u69d8\u76f8\u3067\u3059\u3002\u3069\u306e\u691c\u51fa\u30c1\u30fc\u30e0\u3082\u3053\u308c\u306b\u8ffd\u3044\u3064\u304f\u306e\u306b\u82e6\u52b4\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3055\u3089\u306b\u60aa\u3044\u3053\u3068\u306b\u3001\u69cb\u9020\u89e3\u6790\u3084\u9759\u7684\u30b7\u30b0\u30cd\u30c1\u30e3\u3001\u3055\u307e\u3056\u307e\u306a\u52d5\u7684\u89e3\u6790\u3092\u306f\u3058\u3081\u3068\u3059\u308b\u4e00\u822c\u7684\u306a\u691c\u51fa\u6280\u8853\u306f\u3001\u5e83\u304f\u8513\u5ef6\u3059\u308b\u30de\u30eb\u30a6\u30a7\u30a2\u30d5\u30a1\u30df\u30ea\u30fc\u3067\u65e5\u3005\u89b3\u6e2c\u3055\u308c\u308b\u3088\u3046\u306a\u3001\u5897\u5927\u3059\u308b\u4e00\u65b9\u306e\u8907\u96d1\u6027\u306b\u3046\u307e\u304f\u5bfe\u6297\u3057\u304d\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n\n\n\n
\u95a2\u9023\u3059\u308bUnit 42\u306e\u30c8\u30d4\u30c3\u30af<\/b><\/td>\nSandbox<\/span><\/a>,<\/span>\u00a0<\/span>evasive malware<\/span><\/a>, <\/span>machine learning<\/span><\/a>, <\/span>AI<\/span><\/a>, <\/span>memory detection<\/span><\/a><\/td>\n<\/tr>\n<\/thead>\n<\/table>\n

<\/a>\u9759\u7684\u88c5\u7532\u3068\u56de\u907f\u8853\u3067\u5b8c\u5168\u9632\u5099<\/h2>\n

\u96e3\u8aad\u5316\u3001\u30d1\u30c3\u30ad\u30f3\u30b0\u3001\u30d7\u30ed\u30bb\u30b9\u30e1\u30e2\u30ea\u30fc\u306b\u52d5\u7684\u306b\u30a4\u30f3\u30b8\u30a7\u30af\u30c8\u3057\u305f\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u306e\u5b9f\u884c\u306a\u3069\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u306e\u4f5c\u8005\u304c\u56de\u907f\u6280\u8853\u3092\u63a1\u7528\u3059\u308b\u30b1\u30fc\u30b9\u304c\u5897\u3048\u3064\u3065\u3051\u3066\u3044\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u69cb\u9020\u3092\u624b\u639b\u304b\u308a\u306b\u3059\u308b\u30de\u30eb\u30a6\u30a7\u30a2\u691c\u51fa\u306f\u3044\u3064\u3082\u3046\u307e\u304f\u3044\u304f\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u30d1\u30c3\u30ad\u30f3\u30b0\u6280\u8853\u3067\u30d5\u30a1\u30a4\u30eb\u69cb\u9020\u3092\u3058\u3085\u3046\u3076\u3093\u4fee\u6b63\u3059\u308c\u3070\u3001\u3053\u308c\u3089\u306e\u624b\u304c\u304b\u308a\u306f\u6392\u9664\u3055\u308c\u3066\u3057\u307e\u3046\u306e\u3067\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u3053\u306e\u30af\u30e9\u30b9\u306e\u7279\u5fb4\u91cf\u3060\u3051\u3092\u5b66\u7fd2\u3057\u305f\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u3067\u306f\u3001\u3053\u3046\u3057\u305f\u56de\u907f\u6280\u8853\u3092\u4f7f\u3046\u30b5\u30f3\u30d7\u30eb\u3092\u3046\u307e\u304f\u691c\u51fa\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n

\u307e\u305f\u3001\u3053\u306e\u691c\u51fa\u65b9\u6cd5\u306b\u4ee3\u308f\u308b\u3082\u306e\u3068\u3057\u3066\u3001\u30b5\u30f3\u30c9\u30dc\u30c3\u30af\u30b9\u5185\u3067\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u5b9f\u884c\u306e\u75d5\u8de1\u304b\u3089\u60aa\u8cea\u6027\u3092\u4e88\u6e2c\u3059\u308b\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u3092\u5229\u7528\u3059\u308b\u65b9\u6cd5\u3082\u4e00\u822c\u7684\u3067\u3059\u3002\u3067\u3059\u304c\u3053\u306e\u30b7\u30ea\u30fc\u30ba\u306e\u524d\u56de\u306e\u6295\u7a3f<\/a>\u3067\u3082\u8a73\u3057\u304f\u8aac\u660e\u3057\u305f\u3068\u304a\u308a\u3001\u30b5\u30f3\u30c9\u30dc\u30c3\u30af\u30b9\u56de\u907f\u306f\u3054\u304f\u4e00\u822c\u7684\u306b\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u30b5\u30f3\u30d7\u30eb\u304c\u30a8\u30df\u30e5\u30ec\u30fc\u30c8\u74b0\u5883\u306b\u3044\u308b\u3053\u3068\u3092\u3046\u304b\u304c\u308f\u305b\u308b\u6570\u3005\u306e\u624b\u304c\u304b\u308a\u3092\u5bdf\u77e5\u3059\u308b\u3084\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u304c\u5b9f\u884c\u3092\u3084\u3081\u3066\u3057\u307e\u3046\u3053\u3068\u3082\u3081\u305a\u3089\u3057\u304f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n

\u307e\u305f\u30de\u30eb\u30a6\u30a7\u30a2\u306f\u4e0d\u6ce8\u610f\u3042\u308b\u3044\u306f\u610f\u56f3\u7684\u306b\u30b5\u30f3\u30c9\u30dc\u30c3\u30af\u30b9\u74b0\u5883\u3092\u7834\u58ca\u3057\u305f\u308a\u3001\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u3092\u4e0a\u66f8\u304d\u3057\u305f\u308a\u3001\u4f4e\u30ec\u30d9\u30eb\u306e\u30c8\u30ea\u30c3\u30af<\/a>\u3092\u4f7f\u3063\u305f\u308a\u3068\u3001\u3044\u304f\u3089\u3067\u3082\u89e3\u6790\u59a8\u5bb3\u306e\u8981\u56e0\u3092\u3064\u304f\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3064\u307e\u308a\u5b9f\u884c\u30ed\u30b0\u304b\u3089\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u3092\u5b66\u7fd2\u3055\u305b\u308b\u3060\u3051\u3067\u306f\u3053\u3046\u3057\u305f\u56de\u907f\u578b\u30de\u30eb\u30a6\u30a7\u30a2\u306f\u6355\u6349\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n

<\/a>NSIS Crypter\u3067\u6697\u53f7\u5316\u3055\u308c\u305fGuLoader<\/h2>\n

\u672c\u7a3f\u3067\u306f\u3001Nullsoft Scriptable Install System (NSIS) Crypter\u3067\u6697\u53f7\u5316\u3057\u305fGuLoader\u30c0\u30a6\u30f3\u30ed\u30fc\u30c0\u30fc\u306e1\u3064\u3092\u5206\u6790\u3057\u3066\u3044\u304d\u307e\u3059\u3002NSIS\u306f\u3001Windows\u30a4\u30f3\u30b9\u30c8\u30fc\u30e9\u30fc\u3092\u4f5c\u6210\u3059\u308b\u30aa\u30fc\u30d7\u30f3 \u30bd\u30fc\u30b9 \u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002<\/p>\n\n\n\n
\u30cf\u30c3\u30b7\u30e5<\/b><\/td>\ncc6860e4ee37795693ac0ffe0516a63b9e29afe9af0bd859796f8ebaac5b6a8c<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a>\u9759\u7684\u89e3\u6790\u304c\u5f79\u306b\u7acb\u305f\u306a\u3044\u7406\u7531<\/h3>\n

GuLoader\u30de\u30eb\u30a6\u30a7\u30a2\u306f\u6697\u53f7\u5316\u3055\u308c\u3001NSIS\u30a4\u30f3\u30b9\u30c8\u30fc\u30e9\u30fc \u30d5\u30a1\u30a4\u30eb\u3067\u914d\u4fe1\u3055\u308c\u307e\u3059\u3002\u3053\u306eNSIS\u30a4\u30f3\u30b9\u30c8\u30fc\u30e9\u30fc \u30d5\u30a1\u30a4\u30eb\u306f\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u6700\u521d\u306b\u30a2\u30f3\u30d1\u30c3\u30af\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001\u9759\u7684\u89e3\u6790\u306b\u306f\u5411\u3044\u3066\u3044\u307e\u305b\u3093\u3002\u30a2\u30f3\u30d1\u30c3\u30af\u3057\u3066\u3082\u3001\u305d\u3053\u306b\u3042\u308b\u306e\u306f\u6697\u53f7\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3068NSIS\u30b9\u30af\u30ea\u30d7\u30c81\u3064\u3060\u3051\u3067\u3059\u3002\u3053\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u305d\u308c\u81ea\u4f53\u306b\u3082\u30b3\u30fc\u30c9\u3092\u52d5\u7684\u306b\u5fa9\u53f7\u3059\u308b\u90e8\u5206\u304c\u3042\u3063\u3066\u3001\u305d\u308c\u3082\u691c\u51fa\u3092\u96e3\u3057\u304f\u3059\u308b\u8981\u56e0\u306e1\u3064\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3057\u304b\u3082\u3001\u3053\u308c\u304c\u30de\u30eb\u30a6\u30a7\u30a2\u304b\u3069\u3046\u304b\u3092\u8b58\u5225\u3059\u308b\u69cb\u9020\u4e0a\u306e\u624b\u304c\u304b\u308a\u3082\u3042\u307e\u308a\u3042\u308a\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066Portable Executable (PE)\u30d5\u30a1\u30a4\u30eb\u306e\u69cb\u9020\u306b\u3082\u3068\u3065\u3044\u3066\u5b66\u7fd2\u3055\u305b\u305f\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u306f\u3001\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u307b\u304b\u306e\u826f\u6027\u30d5\u30a1\u30a4\u30eb\u3068\u3046\u307e\u304f\u533a\u5225\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n

<\/a>NSIS\u30b9\u30af\u30ea\u30d7\u30c8\u3068GuLoader\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u306e\u62bd\u51fa<\/h3>\n

NSIS\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u30a2\u30f3\u30d1\u30c3\u30af\u3059\u308b\u306b\u306f\u53e4\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u306e7-Zip (\u30d0\u30fc\u30b8\u30e7\u30f315.05)\u304c\u5fc5\u8981\u3067\u3059\u3002\u3053\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306e7-Zip\u306f\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u30a2\u30f3\u30d1\u30c3\u30af\u3067\u304d\u307e\u3059\u304c\u3001\u3053\u308c\u3088\u308a\u65b0\u3057\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u306fNSIS\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u30a2\u30f3\u30d1\u30c3\u30af\u6a5f\u80fd\u304c\u524a\u9664\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u306e\u4e2d\u8eab\u3068NSIS\u30b9\u30af\u30ea\u30d7\u30c8(\u56f31)\u3092\u30a2\u30f3\u30d1\u30c3\u30af\u3057\u305f\u3089\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u89e3\u6790\u306b\u7740\u624b\u3057\u3001GuLoader\u306e\u30b5\u30f3\u30d7\u30eb\u304c\u3069\u306e\u3088\u3046\u306b\u52d5\u304f\u306e\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n

\"\u753b\u50cf1\u306fNSIS\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u591a\u6570\u306e\u30b3\u30fc\u30c9\u884c\u3092\u8868\u793a\u3057\u305f\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3001\u3053\u308c\u306f\u89e3\u6790\u306e\u524d\u6e96\u5099\u304c\u3067\u304d\u305f\u72b6\u614b\u306e\u3082\u306e\u3067\u3059\u3002\"
\u56f31. NSIS\u30b9\u30af\u30ea\u30d7\u30c8<\/figcaption><\/figure>\n

\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4e0b\u306b\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u3066\u3044\u304f\u3068%APPDATA%\\Farvelade\\Skaermfeltet<\/span>\u3068\u3044\u3046\u540d\u524d\u306e\u30d5\u30a9\u30eb\u30c0\u304c\u65b0\u305f\u306b\u4f5c\u6210\u3055\u308c\u3001\u3053\u3053\u306b\u30d5\u30a1\u30a4\u30eb\u304c\u30b3\u30d4\u30fc\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u306b\u6c17\u3065\u304d\u307e\u3059\u3002\u7406\u7531\u306f\u4e0d\u660e\u3067\u3059\u304c\u3053\u3053\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u306f\u30c7\u30f3\u30de\u30fc\u30af\u8a9e\u306e\u3088\u3046\u3067\u3059\u3002\u3053\u306e\u30b3\u30d4\u30fc\u52d5\u4f5c\u306e\u5f8c\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u901a\u5e38\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u30ed\u30b8\u30c3\u30af\u3067\u3059\u304c\u3001\u3053\u3053\u306bfunc_30<\/span>\u3068\u3044\u3046\u8208\u5473\u6df1\u3044\u95a2\u6570\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059\u524d\u306b\u3001$INSTDIR\\Filterposerne\\Malkekvg.Nat<\/span>\u3068\u3044\u3046\u6587\u5b57\u5217\u304c$4<\/span>\u3068\u3044\u3046\u6587\u5b57\u5217\u5909\u6570\u306b\u30b3\u30d4\u30fc\u3055\u308c\u307e\u3059(\u56f32\u3068\u56f33)\u3002\u3053\u306e\u95a2\u6570func_30<\/span>\u306f\u3001Programmeludviklinger210.Kon<\/span>\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3093\u3067\u30b3\u30fc\u30c9\u3092\u7d44\u307f\u7acb\u3066\u307e\u3059\u3002\u305d\u3057\u3066Z<\/span>\u3068\u3044\u3046\u6587\u5b57\u304c\u78ba\u8a8d\u3055\u308c\u305f\u76f4\u5f8c\u306b\u3001\u7d44\u307f\u7acb\u3066\u305f\u30b3\u30fc\u30c9\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002<\/p>\n

\u958b\u767a\u8005\u306fNSIS\u3092\u4f7f\u3063\u3066Windows DLL\u304b\u3089\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3057\u305f\u4efb\u610f\u306e\u95a2\u6570\u3092\u547c\u3073\u51fa\u305b\u307e\u3059\u3002\u307e\u305f\u305d\u306e\u7d50\u679c\u3092NSIS\u306e\u30ec\u30b8\u30b9\u30bf\/\u30b9\u30bf\u30c3\u30af\u306b\u76f4\u63a5\u4fdd\u5b58\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u6a5f\u80fd\u306b\u3088\u3063\u3066\u30de\u30eb\u30a6\u30a7\u30a2\u306e\u4f5c\u8005\u306f\u5b9f\u884c\u6642\u306bWindows API\u95a2\u6570\u3092\u52d5\u7684\u306b\u547c\u3073\u51fa\u305b\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u89e3\u6790\u524d\u306e\u8a55\u4fa1\u304c\u5fc5\u8981\u306a\u9759\u7684\u89e3\u6790\u306f\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n

\"\u753b\u50cf2\u306fNSIS\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u95a2\u6570func_30\u3092\u547c\u3073\u51fa\u3059\u969b\u306e\u6570\u884c\u306e\u30b3\u30fc\u30c9\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\"
\u56f32. \u95a2\u6570func_30\u306e\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n
\"\u753b\u50cf3\u306f\u3001NSIS\u30b3\u30fc\u30c9\u3092\u30c7\u30b3\u30fc\u30c9\u3057\u3066\u3044\u308b\u69d8\u5b50\u3092\u793a\u3059\u4f55\u884c\u3082\u306e\u30b3\u30fc\u30c9\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\"
\u56f33. NSIS\u30b3\u30fc\u30c9\u306e\u30c7\u30b3\u30fc\u30c9<\/figcaption><\/figure>\n

\u52d5\u7684\u306a\u30b3\u30fc\u30c9\u3092\u30c7\u30b3\u30fc\u30c9\u3059\u308b\u305f\u3081\u3001\u77ed\u3044Python\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u66f8\u304d\u3001\u3053\u306e\u306a\u304b\u3067\u52d5\u304d\u3092\u518d\u73fe\u3057\u3066Windows API\u30b3\u30fc\u30eb\u3092\u62bd\u51fa\u3057\u307e\u3059\u3002<\/p>\n

<\/p>\n

with open('Programmeludviklinger210.Kon', 'rb') as f:\r\n    buf = f.read()\r\n\r\ndecoded = b''\r\noffset = 3551\r\n\r\nwhile offset < len(buf):\r\n    if buf[offset] == ord('Z'):\r\n        print(decoded.decode('utf-8'))\r\n        decoded = b''\r\n    else:\r\n        decoded += buf[offset].to_bytes(1, byteorder='little')\r\n    offset += 507<\/pre>\n
<\/p>\n
\u56f34\u306f\u4e0a\u8a18\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5b9f\u884c\u3057\u305f\u7d50\u679c\u3092\u30c7\u30b3\u30fc\u30c9\u3057\u305f\u30c7\u30fc\u30bf\u3067\u3059\u3002<\/p>\n
\"\u753b\u50cf4\u306f\u30c7\u30b3\u30fc\u30c9\u3055\u308c\u305fWindows
\u56f34. \u30c7\u30b3\u30fc\u30c9\u3055\u308c\u305fWindows API\u30b3\u30fc\u30eb<\/figcaption><\/figure>\n
\u30c7\u30b3\u30fc\u30c9\u3055\u308c\u305f\u95a2\u6570\u7fa4\u304c\u4e00\u7dd2\u306b\u306a\u3063\u3066NSIS\u30a2\u30fc\u30ab\u30a4\u30d6\u306e\u3079\u3064\u306e\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u3092\u8aad\u307f\u8fbc\u307f\u3001EnumWindows<\/span>\u95a2\u6570\u3067\u5b9f\u884c\u3057\u307e\u3059\u3002\u3053\u306e\u51e6\u7406\u3092\u7591\u4f3c\u30b3\u30fc\u30c9\u3067\u66f8\u304f\u3068\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
<\/p>\n
int r5, r3;\r\nvoid* r3;\r\nchar* r4 = \"$INSTDIR\\\\Filterposerne\\\\Malkekvg.Nat\"\r\nr5 = kernel32::CreateFileA(r4 , 0x80000000, 0, 0, 4, 0x80, 0)\r\nr3 = kernel32::SetFilePointer(r5, 6078, 0,0)\r\nr1 = kernel32::VirtualAlloc(0, 0x101000, 0x3000, 0x40)\r\nr3 = kernel32::ReadFile(r5, r1, 0x101000,0, 0)\r\nuser32::EnumWindows(r1 ,0)<\/pre>\n
<\/p>\n
\u6b8b\u308a\u3092\u89e3\u6790\u3057\u3084\u3059\u3044\u3088\u3046\u3001\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u3092\u6301\u3063\u305fPE\u30921\u3064\u751f\u6210\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3059\u3002\u5b9f\u884c\u30d5\u30a1\u30a4\u30eb\u3092\u751f\u6210\u3059\u308b\u306b\u306fCerbero Profiler<\/a>\u306e\u3088\u3046\u306a\u30c4\u30fc\u30eb\u3084LIEF<\/a>\u306e\u3088\u3046\u306aPython\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n
\u4eca\u56de\u306fLIEF\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3063\u3066\u65b0\u3057\u3044\u5b9f\u884c\u30d5\u30a1\u30a4\u30eb\u3092\u30d3\u30eb\u30c9\u3057\u307e\u3057\u305f\u3002\u3042\u3068\u306f\u30d5\u30a1\u30a4\u30ebMalkekvg.Nat<\/span>\u306e\u5185\u5bb9\u3092\u6301\u3064\u65b0\u3057\u3044\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u8ffd\u52a0\u3057\u3066\u6b63\u3057\u3044\u30aa\u30d5\u30bb\u30c3\u30c8\u306b\u306a\u308b\u3088\u3046\u306b\u30a8\u30f3\u30c8\u30ea\u30fc\u30dd\u30a4\u30f3\u30c8\u3092\u8a2d\u5b9a\u3059\u308b\u3060\u3051\u3067\u3059\u3002\u3053\u308c\u304c\u3059\u3081\u3070IDA Pro<\/a>\u3067\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u3092\u958b\u304d(\u56f35)\u3001\u6709\u52b9\u306ax86\u547d\u4ee4\u3092\u542b\u3093\u3067\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n
<\/p>\n
from lief import PE\r\n\r\nwith open('Malkekvg.Nat', 'rb') as f:\r\n    buf = f.read()\r\n\r\npe = PE.Binary('', PE.PE_TYPE.PE32)\r\nsection = PE.Section('.text')\r\nsection.content = bytearray(buf)\r\nsection.virtual_address = 0x1000\r\npe.add_section(section, PE.SECTION_TYPES.TEXT)\r\n\r\npe.optional_header.addressof_entrypoint = section.virtual_address + 6078\r\npe.optional_header.subsystem = PE.SUBSYSTEM.WINDOWS_GUI\r\n\r\nbuilder = PE.Builder(pe)\r\nbuilder.build()\r\nbuilder.write('nsis_guloader_shellcode.exe')<\/pre>\n
<\/p>\n
\"\u753b\u50cf5\u306f\u3001\u751f\u6210\u3055\u308c\u305fPE\u30d5\u30a1\u30a4\u30eb\u3092\u793a\u3059\u4f55\u884c\u3082\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3001IDA
\u56f35. \u751f\u6210\u3055\u308c\u305fPE\u30d5\u30a1\u30a4\u30eb\u3002IDA Pro\u3067\u30a8\u30f3\u30c8\u30ea\u30fc\u30dd\u30a4\u30f3\u30c8\u3092\u8868\u793a\u3057\u305f\u3068\u3053\u308d<\/figcaption><\/figure>\n
<\/a>\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u306e\u89e3\u6790<\/h3>\n
\u3053\u308c\u3067PE\u30d5\u30a1\u30a4\u30eb\u5185\u306b\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u306e\u7b2c1\u30b9\u30c6\u30fc\u30b8\u304c\u3067\u304d\u305f\u306e\u3067\u3001\u52d5\u7684\u89e3\u6790\u3067\u5b9f\u884c\u3057\u3066\u4f55\u304c\u8d77\u3053\u308b\u304b\u3092\u898b\u3066\u307f\u307e\u3059\u3002\u6700\u521d\u306b\u308f\u304b\u308b\u3053\u3068\u306f\u3001\u3053\u308c\u304c\u4eee\u60f3\u30de\u30b7\u30f3\u3092\u691c\u51fa\u3059\u308b\u3068\u30e1\u30c3\u30bb\u30fc\u30b8\u30dc\u30c3\u30af\u30b9\u3092\u8868\u793a\u3057\u3066\u5b9f\u884c\u3092\u505c\u6b62\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u30c6\u30ad\u30b9\u30c8\u306f\u5b9f\u884c\u6642\u306b4\u30d0\u30a4\u30c8\u306eXOR\u30ad\u30fc\u3067\u5fa9\u53f7\u3055\u308c\u307e\u3059\u3002<\/p>\n
\"\u753b\u50cf6\u306f\u3001Windows\u306e\u30dd\u30c3\u30d7\u30a2\u30c3\u30d7\u901a\u77e5\u304c\u8868\u793a\u3059\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u306f\u201cThis
\u56f36. \u4eee\u60f3\u74b0\u5883\u3067\u306f\u30b5\u30f3\u30d7\u30eb\u3092\u5b9f\u884c\u3067\u304d\u306a\u3044<\/figcaption><\/figure>\n
IDA Pro\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u3044\u3066\u30b3\u30fc\u30c9\u3092\u5c11\u3057\u305f\u3069\u308b\u3068\u3001\u7b2c1\u30b9\u30c6\u30fc\u30b8\u5fa9\u53f7\u7528\u306e\u5927\u304d\u306a\u95a2\u6570\u304c\u76ee\u306b\u5165\u308a\u307e\u3059\u3002Graph Overview\u3067\u898b\u308b\u3068\u3053\u306e\u95a2\u6570\u306f\u5927\u304d\u304f\u898b\u3048\u307e\u3059\u304c\u3001\u30b8\u30e3\u30f3\u30af\u30b3\u30fc\u30c9\u306e\u7279\u5b9a\u306f\u5bb9\u6613\u3067\u3059\u3002<\/p>\n
\u5fa9\u53f7\u3092\u62c5\u3046\u30b3\u30fc\u30c9\u306f\u4e0b\u306e\u56f37\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u56f38\u304b\u3089\u306f\u7b2c2\u30b9\u30c6\u30fc\u30b8\u306b\u30b8\u30e3\u30f3\u30d7\u3059\u308b\u6700\u5f8c\u306e\u547c\u3073\u51fa\u3057\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u6642\u70b9\u3067\u3001\u7b2c2\u30b9\u30c6\u30fc\u30b8\u3092\u3079\u3064\u306e\u5b9f\u884c\u30d5\u30a1\u30a4\u30eb\u306b\u30c0\u30f3\u30d7\u3057\u3066\u5fa9\u53f7\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u30e1\u30e2\u30ea\u30fc\u304b\u3089\u76f4\u63a5\u5b9f\u884c\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30f3\u30d7\u3057\u3066\u3082\u3088\u3044\u3067\u3059\u304c\u3001\u30a8\u30f3\u30c8\u30ea\u30fc\u30dd\u30a4\u30f3\u30c8\u304c\u6b63\u3057\u3044\u30a2\u30c9\u30ec\u30b9(\u3053\u306e\u4f8b\u3067\u306f0x404328<\/span>)\u3092\u6307\u3059\u3088\u3046\u3001\u30d1\u30c3\u30c1\u3092\u5f53\u3066\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\"\u753b\u50cf7\u306f\u3001\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u306e\u7b2c1\u30b9\u30c6\u30fc\u30b8\u3092\u8868\u3059\u4f55\u884c\u3082\u306e\u30b3\u30fc\u30c9\u304c\u793a\u3055\u308c\u305f\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002\u201cdecryption_start\u201d\u304c\u30cf\u30a4\u30e9\u30a4\u30c8\u3055\u308c\u3066\u3044\u307e\u3059\u3002\"
\u56f37 \u7b2c1\u30b9\u30c6\u30fc\u30b8\u306e\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u5fa9\u53f7<\/figcaption><\/figure>\n
\"\u753b\u50cf8\u306f\u7b2c2\u30b9\u30c6\u30fc\u30b8\u306e\u89e3\u6790\u5bfe\u7b56\u6280\u8853\u3092\u793a\u3057\u305f\u6570\u884c\u306e\u30b3\u30fc\u30c9\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002
\u56f38. \u6b21\u306e\u30b9\u30c6\u30fc\u30b8\u306e\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n
\u7b2c2\u30b9\u30c6\u30fc\u30b8\u306b\u306f\u89e3\u6790\u5bfe\u7b56\u6280\u8853\u304c\u305f\u304f\u3055\u3093\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u3053\u3067\u8aac\u660e\u3059\u308b\u3068\u9577\u304f\u306a\u308b\u3057\u307b\u304b\u3067\u3082\u89e3\u8aac\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u8a73\u3057\u3044\u8aac\u660e\u306f\u7701\u304d\u3001\u3044\u304f\u3064\u304b\u7d39\u4ecb\u3059\u308b\u306b\u3068\u3069\u3081\u307e\u3059\u3002<\/p>\n