{"id":106108,"date":"2016-05-24T11:30:28","date_gmt":"2016-05-24T18:30:28","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=106108"},"modified":"2020-04-07T23:58:26","modified_gmt":"2020-04-08T06:58:26","slug":"unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism","status":"publish","type":"post","link":"https:\/\/unit42.paloaltonetworks.com\/ja\/unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism\/","title":{"rendered":"DNS\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30b3\u30de\u30f3\u30c9\u30a2\u30f3\u30c9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30e1\u30ab\u30cb\u30ba\u30e0\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\u65b0\u305f\u306aWekby\u653b\u6483"},"content":{"rendered":"<h2>\u6982\u8981<\/h2>\n<p>\u79c1\u305f\u3061\u306f\u3001\u3053\u306e\u6570\u9031\u9593\u306b\u3001APT\u30b0\u30eb\u30fc\u30d7Wekby\u306b\u3088\u308b\u7c73\u56fd\u306b\u62e0\u70b9\u304c\u3042\u308b\u7d44\u7e54\u3092\u6a19\u7684\u3068\u3057\u305f\u653b\u6483\u3092\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002Wekby\u306f\u3001\u533b\u7642\u3001\u96fb\u6c17\u901a\u4fe1\u3001\u822a\u7a7a\u5b87\u5b99\u3001\u9632\u885b\u3001\u30cf\u30a4\u30c6\u30af\u306a\u3069\u306e\u3055\u307e\u3056\u307e\u306a\u696d\u754c\u3092\u6a19\u7684\u3068\u3057\u3066\u6d3b\u52d5\u3057\u3066\u3044\u308b\u30b0\u30eb\u30fc\u30d7\u3067\u3059\u3002\u30b0\u30eb\u30fc\u30d7\u306f\u3001<a href=\"https:\/\/www.volexity.com\/blog\/?p=158\" data-page-track=\"true\" data-page-track-value=\"company:160525-unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism: section: \">\u30cf\u30c3\u30ad\u30f3\u30b0 \u30c1\u30fc\u30e0\u306eFlash\u30bc\u30ed\u30c7\u30a4 \u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8<\/a>\u306e\u3088\u3046\u306b\u3001\u6700\u65b0\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3092\u5165\u624b\u53ef\u80fd\u306b\u306a\u3063\u305f\u76f4\u5f8c\u306b\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Wekby\u30b0\u30eb\u30fc\u30d7\u304c\u4f7f\u7528\u3059\u308b\u30de\u30eb\u30a6\u30a7\u30a2\u306f<a href=\"https:\/\/www.zscaler.com\/blogs\/research\/chinese-cyber-espionage-apt-group-leveraging-recently-leaked-hacking-team-exploits-target-financial-services-firm\" data-page-track=\"true\" data-page-track-value=\"company:160525-unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism: section: \">HTTPBrowser<\/a>\u30de\u30eb\u30a6\u30a7\u30a2 \u30d5\u30a1\u30df\u30ea\u306b\u95a2\u4fc2\u3057\u3066\u304a\u308a\u3001DNS\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30b3\u30de\u30f3\u30c9 \u30a2\u30f3\u30c9 \u30b3\u30f3\u30c8\u30ed\u30fc\u30eb \u30e1\u30ab\u30cb\u30ba\u30e0\u3068\u3057\u3066\u4f7f\u7528\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u3055\u307e\u3056\u307e\u306a\u96a0\u853d\u624b\u6cd5\u3092\u4f7f\u7528\u3057\u3066\u3001\u5206\u6790\u4e2d\u306e\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u3092\u59a8\u5bb3\u3057\u307e\u3059\u3002\u53d6\u308a\u4e0a\u3052\u305f\u30b5\u30f3\u30d7\u30eb\u306b\u898b\u3089\u308c\u308b\u30e1\u30bf\u30c7\u30fc\u30bf\u306b\u57fa\u3065\u3044\u3066\u3001Palo Alto Networks\u306f\u3053\u306e\u30de\u30eb\u30a6\u30a7\u30a2 \u30d5\u30a1\u30df\u30ea\u3092\u300cpisloader\u300d\u3068\u540d\u4ed8\u3051\u307e\u3057\u305f\u3002<\/p>\n<h3><b>\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3<\/b><\/h3>\n<p>pisloader\u30de\u30eb\u30a6\u30a7\u30a2 \u30d5\u30a1\u30df\u30ea\u306f\u3001\u6b21\u306eURL\u304b\u3089HTTP\u3092\u4ecb\u3057\u3066\u914d\u4fe1\u3055\u308c\u307e\u3057\u305f\u3002\u672c\u7a3f\u306e\u57f7\u7b46\u6642\u70b9\u3067\u306f\u3001\u3053\u306eURL\u306f\u307e\u3060\u30a2\u30af\u30c6\u30a3\u30d6\u3067\u3057\u305f\u3002<\/p>\n<p style=\"padding-left: 40px;\"><i>http:\/\/globalprint-us[.]com\/proxy_plugin.exe\u00a0<\/i><\/p>\n<p>\u3053\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u30db\u30b9\u30c8\u3055\u308c\u3066\u3044\u305f\u4ed6\u306e\u30b5\u30f3\u30d7\u30eb\u306b\u306f\u3001\u6b21\u306e\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p style=\"padding-left: 40px;\"><i>http:\/\/globalprint-us[.]com\/proxy_web_plugin.exe\u00a0<\/i><\/p>\n<p style=\"padding-left: 40px;\"><b>MD5:<\/b>\u00a0E4968C8060EA017B5E5756C16B80B012<br \/>\n<b>SHA256:<\/b>8FFBB7A80EFA9EE79E996ABDE7A95CF8DC6F9A41F9026672A8DBD95539FEA82A<br \/>\n<b>\u30b5\u30a4\u30ba:<\/b>\u00a0126976\u30d0\u30a4\u30c8<br \/>\n<b>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u9593:<\/b>\u00a02016\/04\/28 0:38:46 UTC<\/p>\n<p>\u3053\u306e\u691c\u51fa\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u6b21\u306e\u8a2d\u5b9a\u30c7\u30fc\u30bf\u3092\u4f34\u3046\u5171\u901a\u306ePoison Ivy\u30de\u30eb\u30a6\u30a7\u30a2 \u30d5\u30a1\u30df\u30ea\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<p style=\"padding-left: 40px;\"><b>\u30b3\u30de\u30f3\u30c9 \u30a2\u30f3\u30c9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb \u30a2\u30c9\u30ec\u30b9:<\/b>\u00a0intranetwabcam[.]com<br \/>\n<b>\u30b3\u30de\u30f3\u30c9 \u30a2\u30f3\u30c9 \u30b3\u30f3\u30c8\u30ed\u30fc\u30eb \u30dd\u30fc\u30c8:<\/b>\u00a080<br \/>\n<b>\u30d1\u30b9\u30ef\u30fc\u30c9:<\/b>\u00a0admin<br \/>\n<b>\u30df\u30e5\u30fc\u30c6\u30c3\u30af\u30b9:<\/b>\u00a0)!VoqA.I5<\/p>\n<p>\u3053\u306e\u653b\u6483\u3067\u76ee\u6483\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u306f\u3001\u3059\u3079\u3066\u4f7f\u7528\u3055\u308c\u308b\u76f4\u524d\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u306e\u653b\u6483\u3067\u306f\u6b21\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u76ee\u6483\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<div>\n<p><img  class=\"aligncenter lozad\"  data-src=\"https:\/\/www.paloaltonetworks.jp\/content\/dam\/paloaltonetworks-com\/ja_JP\/Images\/blog\/Wekby-Targets-1.png\" \/><\/p>\n<\/div>\n<p>\u3055\u3089\u306b\u3001\u6b21\u306eIP\u89e3\u6c7a\u304c\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<div>\n<p><img  class=\"aligncenter lozad\"  data-src=\"https:\/\/www.paloaltonetworks.jp\/content\/dam\/paloaltonetworks-com\/ja_JP\/Images\/blog\/Wekby-Targets-1.2.png\" \/><\/p>\n<\/div>\n<h3><b>\u521d\u671f\u30c9\u30ed\u30c3\u30d1\u30fc<\/b><\/h3>\n<p>\u6b21\u306e\u30b5\u30f3\u30d7\u30eb\u304c\u6700\u521d\u306b\u691c\u51fa\u3055\u308c\u3001\u5f8c\u7d9a\u306e\u5206\u6790\u3067\u3082\u53c2\u7167\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p style=\"padding-left: 40px;\"><b>MD5:<\/b>\u00a0E8D58AA76DD97536AC225949A2767E05<br \/>\n<b>SHA256:<\/b>\u00a0DA3261C332E72E4C1641CA0DE439AF280E064B224D950817A11922A8078B11F1<br \/>\n<b>\u30b5\u30a4\u30ba:<\/b>\u00a0126976\u30d0\u30a4\u30c8<br \/>\n<b>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u9593:<\/b>\u00a02016\/04\/27 14:37:34 UTC<\/p>\n<p>\u3053\u306e\u7279\u5b9a\u306e\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u6b21\u306e\u30e1\u30bf\u30c7\u30fc\u30bf\u7279\u6027\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002\u300cPisload2\u300d\u3068\u547c\u3093\u3067\u3044\u308b\u3053\u3068\u304c\u3001\u3053\u306e\u30de\u30eb\u30a6\u30a7\u30a2 \u30d5\u30a1\u30df\u30ea\u306e\u547d\u540d\u306b\u3064\u306a\u304c\u308a\u307e\u3057\u305f\u3002<\/p>\n<div>\n<figure style=\"width: 514px\" class=\"wp-caption aligncenter\"><img  data-src=\"https:\/\/www.paloaltonetworks.jp\/content\/dam\/paloaltonetworks-com\/ja_JP\/Images\/blog\/Wekby-Targets-2.png\" alt=\"\u56f31 pisloader\u30c9\u30ed\u30c3\u30d1\u30fc\u306e\u30e1\u30bf\u30c7\u30fc\u30bf\" width=\"514\" height=\"639\" \/><figcaption class=\"wp-caption-text\">\u56f31 pisloader\u30c9\u30ed\u30c3\u30d1\u30fc\u306e\u30e1\u30bf\u30c7\u30fc\u30bf<\/figcaption><\/figure>\n<\/div>\n<p>\u521d\u671f\u30c9\u30ed\u30c3\u30d1\u30fc\u306b\u306f\u3001Run\u30ec\u30b8\u30b9\u30c8\u30ea \u30ad\u30fc\u3092\u4ecb\u3057\u3066\u6301\u7d9a\u6027\u3092\u8a2d\u5b9a\u3057\u3001\u57cb\u3081\u8fbc\u307f\u306eWindows\u5b9f\u884c\u30d5\u30a1\u30a4\u30eb\u3092\u30c9\u30ed\u30c3\u30d7\u304a\u3088\u3073\u5b9f\u884c\u3059\u308b\u5f79\u5272\u3092\u62c5\u3046\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u306a\u30b3\u30fc\u30c9\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u4f5c\u6210\u8005\u304c\u30b9\u30c8\u30ea\u30f3\u30b0\u3092\u3055\u3089\u306b\u5c0f\u3055\u3044\u30b5\u30d6\u30b9\u30c8\u30ea\u30f3\u30b0\u306b\u5206\u5272\u3057\u3001\u300cstrcpy\u300d\u304a\u3088\u3073\u300cstrcat\u300d\u30b3\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u4f7f\u7528\u3059\u308b\u524d\u306b\u305d\u308c\u3089\u3092\u4f5c\u6210\u3057\u76f4\u3059\u3068\u3044\u3046\u3001\u9650\u5b9a\u7684\u306a\u96a0\u853d\u304c\u898b\u3064\u304b\u308a\u307e\u3057\u305f\u3002\u307e\u305f\u3001\u6c7a\u3057\u3066\u4f7f\u7528\u3055\u308c\u306a\u3044\u30ac\u30d9\u30fc\u30b8 \u30b9\u30c8\u30ea\u30f3\u30b0\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306b\u3082\u3001\u3053\u308c\u3068\u540c\u3058\u624b\u6cd5\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u308c\u306b\u3088\u3063\u3066\u3001\u30b5\u30f3\u30d7\u30eb\u306e\u691c\u51fa\u3068\u5206\u6790\u3092\u963b\u6b62\u3059\u308b\u80fd\u529b\u3092\u9ad8\u3081\u3066\u3044\u307e\u3059\u3002\u6b21\u306e\u9006\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305f\u30b3\u30fc\u30c9\u304c\u3053\u306e\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u5b8c\u5168\u306b\u751f\u6210\u3055\u308c\u305f\u30b9\u30c8\u30ea\u30f3\u30b0\u3092\u793a\u3059\u305f\u3081\u306b\u3001\u30b3\u30e1\u30f3\u30c8\u304c\u8ffd\u52a0\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<div>\n<figure style=\"width: 974px\" class=\"wp-caption aligncenter\"><img  data-src=\"https:\/\/www.paloaltonetworks.jp\/content\/dam\/paloaltonetworks-com\/ja_JP\/Images\/blog\/Wekby-Targets-3.png\" alt=\"\u56f32 \u30b9\u30c8\u30ea\u30f3\u30b0\u3092\u4f5c\u6210\u3057\u6c38\u7d9a\u6027\u3092\u8a2d\u5b9a\u3059\u308bpisloader\u30c9\u30ed\u30c3\u30d1\u30fc\" width=\"974\" height=\"258\" \/><figcaption class=\"wp-caption-text\">\u56f32 \u30b9\u30c8\u30ea\u30f3\u30b0\u3092\u4f5c\u6210\u3057\u6c38\u7d9a\u6027\u3092\u8a2d\u5b9a\u3059\u308bpisloader\u30c9\u30ed\u30c3\u30d1\u30fc<\/figcaption><\/figure>\n<\/div>\n<p>\u4e0a\u8a18\u306e\u9006\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305f\u30b3\u30fc\u30c9\u304b\u3089\u3001pisloader\u304c\u3001\u6b21\u306e\u30b9\u30c8\u30ea\u30f3\u30b0\u3092\u751f\u6210\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3053\u306e\u30b9\u30c8\u30ea\u30f3\u30b0\u306f\u3001\u6700\u7d42\u7684\u306bRun\u30ec\u30b8\u30b9\u30c8\u30ea \u30ad\u30fc\u3092\u8a2d\u5b9a\u3059\u308b\u305f\u3081\u306b\u547c\u3073\u51fa\u3055\u308c\u307e\u3059\u3002<\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-family: 'courier new', courier, monospace;\"><i>cmd.exe \/c reg add HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run \/v lsm \/t reg_sz \/d \u201c%appdata%\\lsm.exe\u201d \/f<\/i><\/span><\/p>\n<p>\u3053\u306e\u7279\u5b9a\u306e\u30b3\u30de\u30f3\u30c9\u306f\u3001HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\lsm\u30ec\u30b8\u30b9\u30c8\u30ea \u30ad\u30fc\u306b\u5024\u300c%appdata%\\lsm.exe\u300d\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u30ad\u30fc\u304c\u8a2d\u5b9a\u3055\u308c\u305f\u5f8c\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u306f\u30011\u30d0\u30a4\u30c8\u306eXOR\u30ad\u30fc\u300c0x54\u300d\u3092\u4f7f\u7528\u3057\u3066\u30012\u3064\u306e\u30d6\u30ed\u30d6\u304b\u3089\u6210\u308b\u30c7\u30fc\u30bf\u306e\u5fa9\u53f7\u5316\u3078\u3068\u9032\u307f\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u306e\u30c7\u30fc\u30bf\u304c\u3001%appdata%\\lsm.exe\u30d5\u30a1\u30a4\u30eb \u30d1\u30b9\u306b\u66f8\u304d\u8fbc\u307e\u308c\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u66f8\u304d\u8fbc\u307e\u308c\u305f\u5f8c\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u306f\u65b0\u305f\u306b\u66f8\u304d\u8fbc\u3093\u3060\u3001pisloader\u30da\u30a4\u30ed\u30fc\u30c9\u304c\u542b\u307e\u308c\u308blsm.exe\u30d5\u30a1\u30a4\u30eb\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<h3><b>\u30da\u30a4\u30ed\u30fc\u30c9<\/b><\/h3>\n<p>\u6b21\u306e\u30b5\u30f3\u30d7\u30eb\u304c\u691c\u51fa\u3055\u308c\u3001\u5f8c\u7d9a\u306e\u5206\u6790\u3067\u3082\u53c2\u7167\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p style=\"padding-left: 40px;\"><b>MD5:<\/b>\u00a007B9B62FB3B1C068837C188FEFBD5DE9<br \/>\n<b>SHA256:<\/b>456FFFC256422AD667CA023D694494881BAED1496A3067485D56ECC8FEFBFAEB<br \/>\n<b>\u30b5\u30a4\u30ba:<\/b>\u00a0102400\u30d0\u30a4\u30c8<br \/>\n<b>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u9593:<\/b>\u00a02016\/04\/27 13:39:02 UTC<\/p>\n<p>\u30da\u30a4\u30ed\u30fc\u30c9\u306f\u3001ROP (Return-Oriented Programming)\u624b\u6cd5\u3068\u591a\u6570\u306e\u30ac\u30d9\u30fc\u30b8 \u30a2\u30bb\u30f3\u30d6\u30ea\u547d\u4ee4\u3092\u4f7f\u7528\u3057\u3066\u3001\u304b\u306a\u308a\u96a0\u853d\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u6b21\u306e\u4f8b\u3067\u306f\u3001\u8d64\u3067\u5f37\u8abf\u8868\u793a\u3055\u308c\u305f\u30b3\u30fc\u30c9\u306f\u3001\u672c\u8cea\u7684\u306b\u3001\u30b5\u30f3\u30d7\u30eb\u306e\u30ea\u30d0\u30fc\u30b9\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u963b\u6b62\u3059\u308b\u76ee\u7684\u306e\u307f\u3067\u5b58\u5728\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001\u30ac\u30d9\u30fc\u30b8\u3068\u3057\u3066\u6271\u3044\u3001\u7121\u8996\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5b8c\u5168\u306a\u95a2\u6570\u306f\u7dd1\u8272\u3067\u5f37\u8abf\u8868\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u30022\u3064\u306e\u95a2\u6570\u30aa\u30d5\u30bb\u30c3\u30c8\u304c\u30b9\u30bf\u30c3\u30af\u306b\u30d7\u30c3\u30b7\u30e5\u3055\u308c\u3001\u3055\u3089\u306b\u3001return\u547d\u4ee4\u304c\u7d9a\u304d\u307e\u3059\u3002\u3053\u306ereturn\u547d\u4ee4\u306f\u3001\u6700\u521d\u306b\u30b3\u30fc\u30c9\u5b9f\u884c\u3092\u30cc\u30eb\u95a2\u6570\u3078\u5dee\u3057\u5411\u3051\u3001\u6b21\u306b\u3001\u30b3\u30fc\u30c9\u5b9f\u884c\u3092\u300cnext_function\u300d\u3078\u5dee\u3057\u5411\u3051\u307e\u3059\u3002\u3053\u306e\u624b\u6cd5\u304c\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u306e\u30e9\u30f3\u30bf\u30a4\u30e0\u5168\u4f53\u3092\u901a\u3058\u3066\u4f7f\u7528\u3055\u308c\u3001\u9759\u7684\u306a\u5206\u6790\u3092\u56f0\u96e3\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<div>\n<figure style=\"width: 279px\" class=\"wp-caption aligncenter\"><img  data-src=\"https:\/\/www.paloaltonetworks.jp\/content\/dam\/paloaltonetworks-com\/ja_JP\/Images\/blog\/Wekby-Targets-4.png\" alt=\"\u56f33 pisloader\u5185\u306e\u8a3c\u62e0\u3068\u306a\u308b\u96e3\u8aad\u5316\u3055\u308c\u305f\u30b3\u30fc\u30c9\" width=\"279\" height=\"805\" \/><figcaption class=\"wp-caption-text\">\u56f33 pisloader\u5185\u306e\u8a3c\u62e0\u3068\u306a\u308b\u96e3\u8aad\u5316\u3055\u308c\u305f\u30b3\u30fc\u30c9<\/figcaption><\/figure>\n<\/div>\n<p>\u3053\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u306f\u3001\u96e3\u8aad\u5316\u90e8\u5206\u304a\u3088\u3073\u30ac\u30d9\u30fc\u30b8 \u30b3\u30fc\u30c9\u3092\u7121\u8996\u3059\u308b\u3068\u3042\u3068\u306f\u6975\u3081\u3066\u5358\u7d14\u305d\u306e\u3082\u306e\u3067\u3059\u3002\u307e\u305a\u3001\u30e9\u30f3\u30c0\u30e0\u306a10\u30d0\u30a4\u30c8\u306e\u82f1\u6570\u5b57\u304b\u3089\u306a\u308b\u30d8\u30c3\u30c0\u30fc\u306e\u751f\u6210\u304b\u3089\u59cb\u3081\u307e\u3059\u3002\u6b8b\u308a\u306e\u30c7\u30fc\u30bf\u306f\u30d1\u30c7\u30a3\u30f3\u30b0\u3092\u9664\u53bb\u3057\u305f\u72b6\u614b\u3067Base32\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u30c7\u30fc\u30bf\u306f\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u57cb\u3081\u8fbc\u3080\u306e\u306b\u4f7f\u308f\u308c\u3001\u57cb\u3081\u8fbc\u307e\u308c\u305f\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306f\u3001\u305d\u306e\u5f8c\u306eDNS\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u4e2d\u3067TXT\u30ec\u30b3\u30fc\u30c9\u3092\u8981\u6c42\u3059\u308b\u306e\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>DNS\u306eC2\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u3057\u3066\u306e\u5229\u7528\u306f\u3001\u3053\u308c\u307e\u3067\u30de\u30eb\u30a6\u30a7\u30a2\u4f5c\u6210\u8005\u306b\u3088\u3063\u3066\u5e83\u304f\u63a1\u7528\u3055\u308c\u3066\u304d\u305f\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4f8b\u5916\u7684\u306b\u76ee\u7acb\u3064\u3082\u306e\u3068\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/blog.gdatasoftware.com\/2014\/10\/23942-new-frameworkpos-variant-exfiltrates-data-via-dns-requests\" data-page-track=\"true\" data-page-track-value=\"company:160525-unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism: section: \">FrameworkPOS<\/a><\/li>\n<li><a href=\"https:\/\/www.forcepoint.com\/sites\/default\/files\/resources\/files\/report_jaku_analysis_of_botnet_campaign_en_0.pdf\" data-page-track=\"true\" data-page-track-value=\"company:160525-unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism: section: \">C3PRO-RACCOON<\/a><\/li>\n<li><a href=\"https:\/\/blog.cj2s.de\/archives\/28-Feederbot-a-bot-using-DNS-as-carrier-for-its-CC.html\" data-page-track=\"true\" data-page-track-value=\"company:160525-unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism: section: \">FeederBot<\/a><\/li>\n<li><a href=\"https:\/\/www.symantec.com\/connect\/blogs\/morto-worm-sets-dns-record\" data-page-track=\"true\" data-page-track-value=\"company:160525-unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism: section: \">Morto<\/a><\/li>\n<li><a href=\"https:\/\/blog.airbuscybersecurity.com\/post\/2014\/01\/PlugX-v2:-meet-SController\" data-page-track=\"true\" data-page-track-value=\"company:160525-unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism: section: \">PlugX\u4e9c\u7a2e<\/a><\/li>\n<\/ul>\n<p>DNS\u3092C2\u3068\u3057\u3066\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001pisloader\u306f\u3053\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u6b63\u3057\u304f\u691c\u67fb\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u6050\u308c\u306e\u3042\u308b\u67d0\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u88fd\u54c1\u3092\u56de\u907f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<div>\n<figure style=\"width: 975px\" class=\"wp-caption aligncenter\"><img  data-src=\"https:\/\/www.paloaltonetworks.jp\/content\/dam\/paloaltonetworks-com\/ja_JP\/Images\/blog\/Wekby-Targets-5.png\" alt=\"\u56f34 TXT\u30ec\u30b3\u30fc\u30c9\u3092\u8981\u6c42\u3059\u308b\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u306b\u3088\u308bDNS\u30af\u30a8\u30ea\" width=\"975\" height=\"542\" \/><figcaption class=\"wp-caption-text\">\u56f34 TXT\u30ec\u30b3\u30fc\u30c9\u3092\u8981\u6c42\u3059\u308b\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u306b\u3088\u308bDNS\u30af\u30a8\u30ea<\/figcaption><\/figure>\n<\/div>\n<p>\u3053\u306episloader\u306e\u30b5\u30f3\u30d7\u30eb\u306f\u3001\u30e9\u30f3\u30c0\u30e0\u306a4\u30d0\u30a4\u30c8\u306e\u5927\u6587\u5b57\u306e\u6587\u5b57\u5217\u304b\u3089\u69cb\u6210\u3055\u308c\u308b\u30d3\u30fc\u30b3\u30f3\u3092\u30da\u30a4\u30ed\u30fc\u30c9\u3068\u3057\u3066\u4f7f\u3063\u3066\u5b9a\u671f\u7684\u306b\u9001\u4fe1\u3057\u307e\u3059\u3002\u3053\u306e\u4f8b\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<div>\n<figure style=\"width: 974px\" class=\"wp-caption aligncenter\"><img  data-src=\"https:\/\/www.paloaltonetworks.jp\/content\/dam\/paloaltonetworks-com\/ja_JP\/Images\/blog\/Wekby-Targets-6.png\" alt=\"\u56f35 pisloader\u306eDNS\u30d3\u30fc\u30b3\u30f3\u8981\u6c42\" width=\"974\" height=\"254\" \/><figcaption class=\"wp-caption-text\">\u56f35 pisloader\u306eDNS\u30d3\u30fc\u30b3\u30f3\u8981\u6c42<\/figcaption><\/figure>\n<\/div>\n<p>\u30de\u30eb\u30a6\u30a7\u30a2\u306fDNS\u30ec\u30b9\u30dd\u30f3\u30b9\u304c\u3055\u307e\u3056\u307e\u306a\u89b3\u70b9\u3067\u7279\u5b9a\u306e\u65b9\u6cd5\u3067\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3068\u898b\u8fbc\u3093\u3067\u3044\u307e\u3059\u304c\u3001\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u306fDNS\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u7121\u8996\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306eDNS\u30d5\u30e9\u30b0\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u307b\u304b\u306b\u4f55\u304b\u30d5\u30e9\u30b0\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u5fdc\u7b54\u306f\u7121\u8996\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li>Response<\/li>\n<li>Recursion Desired<\/li>\n<li>Recursion Available<\/li>\n<\/ul>\n<p>\u300cQuestions\u300d\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u306f0x1\u3068\u3044\u3046\u5024\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u300cAnswer Resource Records\u300d\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u306f0x1\u3068\u3044\u3046\u5024\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u30af\u30a8\u30ea \u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306f\u6700\u521d\u306eDNS\u8981\u6c42\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30ea\u30e2\u30fc\u30c8\u306e\u30b3\u30de\u30f3\u30c9 \u30a2\u30f3\u30c9 \u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306f\u30de\u30eb\u30a6\u30a7\u30a2\u306e\u5185\u90e8\u306b\u9759\u7684\u306b\u57cb\u3081\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u7279\u5b9a\u306e\u30b5\u30f3\u30d7\u30eb\u3067\u306f\u300cns1.logitech-usa[.]com\u300d\u3068\u3044\u3046\u30db\u30b9\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>C2\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u6700\u521d\u306e\u8981\u6c42\u306b\u4f3c\u305f\u3088\u3046\u306a\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u305fTXT\u30ec\u30b3\u30fc\u30c9\u3092\u4f7f\u3063\u3066\u5fdc\u7b54\u3057\u307e\u3059\u3002\u305d\u306e\u5fdc\u7b54\u306b\u304a\u3044\u3066\u3001\u6700\u521d\u306e\u30d0\u30a4\u30c8\u306f\u7121\u8996\u3055\u308c\u3001\u6b8b\u308a\u306e\u30c7\u30fc\u30bf\u306fBase32\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u4f8b\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<div>\n<figure style=\"width: 974px\" class=\"wp-caption aligncenter\"><img  data-src=\"https:\/\/www.paloaltonetworks.jp\/content\/dam\/paloaltonetworks-com\/ja_JP\/Images\/blog\/Wekby-Targets-7.png\" alt=\"\u56f36 C2\u30b5\u30fc\u30d0\u30fc\u306b\u3088\u308bTXT\u5fdc\u7b54\u306e\u4f8b\" width=\"974\" height=\"344\" \/><figcaption class=\"wp-caption-text\">\u56f36 C2\u30b5\u30fc\u30d0\u30fc\u306b\u3088\u308bTXT\u5fdc\u7b54\u306e\u4f8b<\/figcaption><\/figure>\n<\/div>\n<p>\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u304a\u3088\u3073\u89e3\u8aac\u304c\u30de\u30eb\u30a6\u30a7\u30a2\u306b\u3088\u308a\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>sifo \u2013 \u88ab\u5bb3\u8005\u306e\u30b7\u30b9\u30c6\u30e0\u60c5\u5831\u3092\u53ce\u96c6\u3059\u308b<\/li>\n<li>drive \u2013 \u88ab\u5bb3\u8005\u306e\u30de\u30b7\u30f3\u306b\u3042\u308b\u30c9\u30e9\u30a4\u30d6\u306e\u4e00\u89a7\u3092\u4f5c\u6210\u3059\u308b<\/li>\n<li>list \u2013 \u6307\u5b9a\u3055\u308c\u305f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u95a2\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u60c5\u5831\u306e\u4e00\u89a7\u3092\u4f5c\u6210\u3059\u308b<\/li>\n<li>upload \u2013 \u88ab\u5bb3\u8005\u306e\u30de\u30b7\u30f3\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b<\/li>\n<li>open \u2013 \u30b3\u30de\u30f3\u30c9 \u30b7\u30a7\u30eb\u3092\u751f\u6210\u3059\u308b<\/li>\n<\/ul>\n<p>\u4f7f\u7528\u4e2d\u306e\u3053\u308c\u3089\u306e\u30b3\u30de\u30f3\u30c9\u306b\u95a2\u3057\u3066\u3001\u3044\u304f\u3064\u304b\u306e\u4f8b\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002\u7591\u4f3cDNS\u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u3063\u3066\u30b3\u30de\u30f3\u30c9\u3092\u751f\u6210\u3057\u3001\u305d\u306e\u7d50\u679c\u3068\u3057\u3066\u751f\u3058\u308b\u30c7\u30fc\u30bf\u3092\u53d7\u4fe1\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><b>\u300cdrive\u300d\u30b3\u30de\u30f3\u30c9\u3092\u9001\u3063\u3066\u3044\u308b\u4f8b<\/b><\/p>\n<div><img  data-src=\"https:\/\/www.paloaltonetworks.jp\/content\/dam\/paloaltonetworks-com\/ja_JP\/Images\/blog\/Wekby-Targets-7.png\" \/><\/div>\n<div><em>\u56f36 C2\u30b5\u30fc\u30d0\u30fc\u306b\u3088\u308bTXT\u5fdc\u7b54\u306e\u4f8b<\/em><\/div>\n<div><\/div>\n<div>\n<p><img  data-src=\"https:\/\/www.paloaltonetworks.jp\/content\/dam\/paloaltonetworks-com\/ja_JP\/Images\/blog\/Wekby-Targets-8.png\" \/><\/p>\n<\/div>\n<p><b>\u300copen\u300d\u30b3\u30de\u30f3\u30c9\u3092\u9001\u3063\u3066\u3044\u308b\u4f8b<\/b><\/p>\n<div>\n<p><img  data-src=\"https:\/\/www.paloaltonetworks.jp\/content\/dam\/paloaltonetworks-com\/ja_JP\/Images\/blog\/Wekby-Targets-9.png\" \/><\/p>\n<\/div>\n<p><b>\u300csifo\u300d\u30b3\u30de\u30f3\u30c9\u3092\u9001\u3063\u3066\u3044\u308b\u4f8b<\/b><\/p>\n<div>\n<p><img  data-src=\"https:\/\/www.paloaltonetworks.jp\/content\/dam\/paloaltonetworks-com\/ja_JP\/Images\/blog\/Wekby-Targets-10.png\" \/><\/p>\n<\/div>\n<p><b>C:\\\u30c9\u30e9\u30a4\u30d6\u306e\u4e2d\u8eab\u306e\u4e00\u89a7\u3092\u4f5c\u6210\u3057\u3066\u3044\u308b\u4f8b<\/b><\/p>\n<div>\n<p><img  data-src=\"https:\/\/www.paloaltonetworks.jp\/content\/dam\/paloaltonetworks-com\/ja_JP\/Images\/blog\/Wekby-Targets-11.png\" \/><\/p>\n<\/div>\n<p>\u4e0a\u8a18\u306esifo\u30b3\u30de\u30f3\u30c9\u3067\u306fprintf\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u6587\u5b57\u5217\u300cl=%s&amp;c=%s&amp;o=%s\u300d\u304c\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306fHTTPBrowser\u306e\u4ee5\u524d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u4e00\u81f4\u3057\u3066\u3044\u307e\u3059\u3002\u306a\u304a\u3001HTTPBrowser\u306fWekby\u30b0\u30eb\u30fc\u30d7\u304c\u983b\u7e41\u306b\u5229\u7528\u3059\u308b\u5225\u306e\u30de\u30eb\u30a6\u30a7\u30a2 \u30d5\u30a1\u30df\u30ea\u3067\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001\u300clist\u300d\u300cdrive\u300d\u300cupload\u300d\u30b3\u30de\u30f3\u30c9\u306a\u3069\u306e\u591a\u6570\u306e\u30b3\u30de\u30f3\u30c9\u81ea\u4f53\u3082HTTPBrowser\u3068\u4e00\u81f4\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b3\u30de\u30f3\u30c9\u304b\u3089\u8fd4\u3055\u308c\u308b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3055\u308c\u305f\u5fdc\u7b54\u3082\u5168\u304f\u540c\u3058\u3067\u3059\u3002\u3053\u3053\u3067\u8003\u5bdf\u3057\u3066\u3044\u308bpisloader\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u3082\u306e\u3068\u985e\u4f3c\u306e\u30e1\u30bf\u30c7\u30fc\u30bf\u3092\u6709\u3059\u308b<a href=\"https:\/\/www.virustotal.com\/en\/file\/9995fe6ff112efb6de6498ace23f42b8d3689f3c890959728cbc888462b9ea0d\/analysis\/\" data-page-track=\"true\" data-page-track-value=\"company:160525-unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism: section: \">\u65e2\u77e5\u306eHTTPBrowser sample<\/a>\u304c\u767a\u898b\u3055\u308c\u307e\u3057\u305f\u304c\u3001\u3053\u308c\u306b\u3088\u308apisloader\u304c\u3053\u306e\u30de\u30eb\u30a6\u30a7\u30a2 \u30d5\u30a1\u30df\u30ea\u306e\u4e9c\u7a2e\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3068\u3044\u3046\u4fe1\u6191\u6027\u304c\u5897\u3057\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u3053\u308c\u3089\u306e\u30b3\u30de\u30f3\u30c9\u3092\u751f\u6210\u3059\u308b\u306e\u306b\u4f7f\u308f\u308c\u3066\u3044\u308b\u30b3\u30fc\u30c9\u306f<a href=\"https:\/\/github.com\/pan-unit42\/public_tools\/tree\/master\/pisloader\/wekby_dns.py\" data-page-track=\"true\" data-page-track-value=\"company:160525-unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism: section: \">GitHub<\/a>\u304b\u3089\u5165\u624b\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<h2><b>\u7d50\u8ad6<\/b><\/h2>\n<p>Wekby\u306f\u3001\u9ad8\u6027\u80fd\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u3092\u4f7f\u3063\u3066\u3001\u3088\u304f\u76ee\u7acb\u3064\u3055\u307e\u3056\u307e\u306a\u7d44\u7e54\u3092\u6a19\u7684\u306b\u3057\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002pisloader\u30de\u30eb\u30a6\u30a7\u30a2 \u30d5\u30a1\u30df\u30ea\u306f\u3055\u307e\u3056\u307e\u306a\u65b0\u3057\u3044\u6280\u6cd5\u3092\u4f7f\u3044\u307e\u3059\u3002\u305f\u3068\u3048\u3070DNS\u3092C2\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u3057\u3066\u5229\u7528\u3057\u305f\u308a\u3001return-oriented programming\u306a\u3069\u306e\u5206\u6790\u5bfe\u7b56\u6226\u8853\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<p>Palo Alto Networks\u306e\u304a\u5ba2\u69d8\u306f\u3001\u6b21\u306e\u65b9\u6cd5\u3067\u8105\u5a01\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>WildFire\u304c\u3059\u3079\u3066\u306episloader\u30b5\u30f3\u30d7\u30eb\u3092\u6709\u5bb3\u3067\u3042\u308b\u3068\u6b63\u3057\u304f\u691c\u51fa\u3057\u307e\u3059\u3002<\/li>\n<li>\u3053\u306e\u30de\u30eb\u30a6\u30a7\u30a2 \u30d5\u30a1\u30df\u30ea\u3092\u8ffd\u8de1\u3059\u308b\u305f\u3081\u3001pisloader AutoFocus\u30bf\u30b0\u304c\u4f5c\u6210\u3055\u308c\u307e\u3057\u305f\u3002<\/li>\n<li>\u3053\u306e\u653b\u6483\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u30c9\u30e1\u30a4\u30f3\/IP\u306f\u60aa\u610f\u306e\u3042\u308b\u3082\u306e\u3068\u3057\u3066\u30d5\u30e9\u30b0\u4ed8\u3051\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<li>pisloader\u306eDNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u691c\u51fa\u3059\u308b\u305f\u3081IPS\u30eb\u30fc\u30eb\u304c\u4f5c\u6210\u3055\u308c\u307e\u3057\u305f\u3002<\/li>\n<\/ul>\n<h3><b>\u4ed8\u9332<\/b><\/h3>\n<h4><b>\u5916\u90e8\u60c5\u5831<\/b><\/h4>\n<ul>\n<li><a href=\"https:\/\/blog.anomali.com\/evasive-maneuvers-the-wekby-group-attempts-to-evade-analysis-via-custom-rop\" data-page-track=\"true\" data-page-track-value=\"company:160525-unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism: section: \">https:\/\/blog.anomali.com\/evasive-maneuvers-the-wekby-group-attempts-to-evade-analysis-via-custom-rop<\/a><\/li>\n<li><a href=\"https:\/\/www.volexity.com\/blog\/?p=158\" data-page-track=\"true\" data-page-track-value=\"company:160525-unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism: section: \">http:\/\/www.volexity.com\/blog\/?p=158<\/a><\/li>\n<li><a href=\"https:\/\/www.secureworks.com\/research\/threat-group-3390-targets-organizations-for-cyberespionage\" data-page-track=\"true\" data-page-track-value=\"company:160525-unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism: section: \">https:\/\/www.secureworks.com\/research\/threat-group-3390-targets-organizations-for-cyberespionage<\/a><\/li>\n<li><a href=\"https:\/\/www.zscaler.com\/blogs\/research\/chinese-cyber-espionage-apt-group-leveraging-recently-leaked-hacking-team-exploits-target-financial-services-firm\" data-page-track=\"true\" data-page-track-value=\"company:160525-unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism: section: \">https:\/\/www.zscaler.com\/blogs\/research\/chinese-cyber-espionage-apt-group-leveraging-recently-leaked-hacking-team-exploits-target-financial-services-firm<\/a><\/li>\n<li><a href=\"https:\/\/www.fireeye.com\/blog\/threat-research\/2015\/07\/demonstrating_hustle.html\" data-page-track=\"true\" data-page-track-value=\"company:160525-unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism: section: \">https:\/\/www.fireeye.com\/blog\/threat-research\/2015\/07\/demonstrating_hustle.html<\/a><\/li>\n<\/ul>\n<h4><b>SHA256\u30cf\u30c3\u30b7\u30e5<\/b><\/h4>\n<p style=\"padding-left: 40px;\">da3261c332e72e4c1641ca0de439af280e064b224d950817a11922a8078b11f1<br \/>\n930772d6af8f43f62ea78092914fa8d6b03e8e3360dd4678eec1a3dda17206ed<br \/>\n6852ba95720af64809995e04f4818517ca1bd650bc42ea86d9adfdb018d6b274<br \/>\n9200f80c08b21ebae065141f0367f9c88f8fed896b0b4af9ec30fc98c606129b<br \/>\n4d62caef1ca8f4f9aead7823c95228a52852a1145ca6aaa58ad8493e042aed16<br \/>\n1b341dab023de64598d80456349db146aafe9b9e2ec24490c7d0ac881cecc094<br \/>\n456fffc256422ad667ca023d694494881baed1496a3067485d56ecc8fefbfaeb<\/p>\n<h4><b>\u30c9\u30e1\u30a4\u30f3<\/b><\/h4>\n<p style=\"padding-left: 40px;\">ns1.logitech-usa[.]com<br \/>\nglobalprint-us[.]com<br \/>\nintranetwabcam[.]com<br \/>\nlogin.access-mail[.]com<br \/>\nglb.it-desktop[.]com<br \/>\nlocal.it-desktop[.]com<br \/>\nhi.getgo2[.]com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981 \u79c1\u305f\u3061\u306f\u3001\u3053\u306e\u6570\u9031\u9593\u306b\u3001APT\u30b0\u30eb\u30fc\u30d7Wekby\u306b\u3088\u308b\u7c73\u56fd\u306b\u62e0\u70b9\u304c\u3042\u308b\u7d44\u7e54\u3092\u6a19\u7684\u3068\u3057\u305f\u653b\u6483\u3092\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002Wekby\u306f\u3001\u533b\u7642\u3001\u96fb\u6c17\u901a\u4fe1\u3001\u822a\u7a7a\u5b87\u5b99\u3001\u9632\u885b\u3001\u30cf\u30a4\u30c6\u30af\u306a\u3069\u306e\u3055\u307e\u3056\u307e\u306a\u696d\u754c\u3092\u6a19\u7684\u3068\u3057\u3066\u6d3b\u52d5\u3057\u3066\u3044\u308b\u30b0\u30eb\u30fc\u30d7\u3067<\/p>\n","protected":false},"author":193,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[4329,4437,4428],"tags":[5787,7659,7660],"product_categories":[],"coauthors":[383,934,933],"class_list":["post-106108","post","type-post","status-publish","format-standard","hentry","category-dns","category-dns-ja","category-threat-research-ja","tag-command-and-control-ja","tag-pisloader-ja","tag-wekby"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.0 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>DNS\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30b3\u30de\u30f3\u30c9\u30a2\u30f3\u30c9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30e1\u30ab\u30cb\u30ba\u30e0\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\u65b0\u305f\u306aWekby\u653b\u6483<\/title>\n<meta name=\"description\" content=\"\u6982\u8981\" \/>\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-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"DNS\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30b3\u30de\u30f3\u30c9\u30a2\u30f3\u30c9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30e1\u30ab\u30cb\u30ba\u30e0\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\u65b0\u305f\u306aWekby\u653b\u6483\" \/>\n<meta property=\"og:description\" content=\"\u6982\u8981\" \/>\n<meta property=\"og:url\" content=\"https:\/\/unit42.paloaltonetworks.com\/ja\/unit42-new-wekby-attacks-use-dns-requests-as-command-and-control-mechanism\/\" \/>\n<meta property=\"og:site_name\" content=\"Unit 42\" \/>\n<meta property=\"article:published_time\" content=\"2016-05-24T18:30:28+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-04-08T06:58:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.paloaltonetworks.jp\/content\/dam\/paloaltonetworks-com\/ja_JP\/Images\/blog\/Wekby-Targets-1.png\" \/>\n<meta name=\"author\" content=\"Mike Scott, Bryan Lee, Josh Grunzweig\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<!-- \/ Yoast SEO Premium plugin. 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