{"id":322097,"date":"2024-06-27T19:00:13","date_gmt":"2024-06-28T02:00:13","guid":{"rendered":"https:\/\/www.paloaltonetworks.com\/blog\/?p=322097"},"modified":"2024-06-19T01:10:47","modified_gmt":"2024-06-19T08:10:47","slug":"recently-observed-dns-tunneling-applications","status":"publish","type":"post","link":"https:\/\/origin-researchcenter.paloaltonetworks.com\/blog\/2024\/06\/recently-observed-dns-tunneling-applications\/?lang=ja","title":{"rendered":"DNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u6280\u8853\u3068\u305d\u306e\u5fdc\u7528: \u8fd1\u5e74\u5897\u3048\u3064\u3064\u3042\u308b4\u3064\u306e\u6280\u8853\u5fdc\u7528\u5206\u91ce"},"content":{"rendered":"

<\/a>\u306f\u3058\u3081\u306b<\/h2>\n

\u90f5\u4fbf\u306e\u300c\u5b9b\u5148\u4f4f\u6240\u300d\u3068\u300c\u90f5\u4fbf\u756a\u53f7\u300d\u306e\u95a2\u4fc2\u306f\u3001\u3088\u304f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u300cFQDN (\u5b8c\u5168\u4fee\u98fe\u30c9\u30e1\u30a4\u30f3\u540d)\u300d\u3068\u300cIP\u30a2\u30c9\u30ec\u30b9\u300d\u306e\u95a2\u4fc2\u306b\u305f\u3068\u3048\u3089\u308c\u307e\u3059\u3002\u90f5\u4fbf\u3067\u4e00\u610f\u306a\u300c\u5b9b\u5148\u4f4f\u6240\u300d\u3092\u66f8\u3051\u3070\u305d\u3053\u304b\u3089\u300c\u90f5\u4fbf\u756a\u53f7\u300d\u3092\u8abf\u3079\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3082\u4e00\u610f\u306a\u300cFQDN\u300d\u3092\u6307\u5b9a\u3059\u308c\u3070DNS\u30b5\u30fc\u30d3\u30b9\u3092\u7d4c\u7531\u3057\u3066\u300cIP\u30a2\u30c9\u30ec\u30b9\u300d\u3092\u8abf\u3079\u3089\u308c\u307e\u3059\u3002\u305d\u3057\u3066\u90f5\u4fbf\u3068\u540c\u3058\u304f\u3001\u3053\u306e\u3057\u304f\u307f\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3067\u60c5\u5831\u3092\u3084\u308a\u3068\u308a\u3059\u308b\u4e0a\u3067\u63a5\u7d9a\u5148\u3068\u63a5\u7d9a\u5143\u306e\u4e00\u610f\u306a\u7279\u5b9a\u306b\u6b20\u304b\u305b\u306a\u3044\u57fa\u76e4\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001DNS\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3059\u308b53\/udp\u308453\/tcp\u5b9b\u306e\u901a\u4fe1\u306f\u5f93\u6765\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3067\u3042\u308c\u3070\u305f\u3044\u3066\u3044\u901a\u904e\u304c\u8a31\u53ef\u3055\u308c\u3066\u3044\u307e\u3059\u3002DNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306f\u3053\u306e\u3057\u304f\u307f\u3092\u60aa\u7528\u3059\u308b\u653b\u6483\u3067\u3059\u3002<\/p>\n

<\/a>DNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u6280\u8853\u3068\u306f<\/h2>\n

DNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u6280\u8853\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u304c\u624b\u8584\u306b\u306a\u308a\u304c\u3061\u306a\u3053\u306eDNS\u30b5\u30fc\u30d3\u30b9\u3092\u9006\u624b\u306b\u53d6\u308a\u3001\u5bc6\u304b\u306b\u4ea4\u63db\u3057\u305f\u3044\u60c5\u5831\u306e\u3084\u308a\u3068\u308a\u306bDNS\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u3046\u6280\u8853\u3067\u3059\u3002\u3055\u304d\u307b\u3069\u306e\u90f5\u4fbf\u306e\u4f8b\u3067\u3044\u3046\u306a\u3089\u3001\u300c\u5b9b\u5148\u4f4f\u6240\u300d\u3084\u300c\u5dee\u51fa\u4eba\u4f4f\u6240\u300d\u306b\u3084\u308a\u3068\u308a\u3057\u305f\u3044\u60c5\u5831\u3092\u542b\u3081\u3066\u3057\u307e\u3046\u306e\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u5c01\u66f8\u306e\u5b9b\u5148\u4f4f\u6240\u306b\u300c\u6771\u4eac\u90fd\u5343\u4ee3\u7530\u533a1-1-1 victiminfo win-pc01 user01 password123!<\/span>\u00a0 \u69d8\u300d\u3068\u3057\u3066\u5c01\u66f8\u3092\u9001\u308a\u3001\u8fd4\u4fe1\u3059\u308b\u5c01\u66f8\u306e\u5b9b\u5148\u4f4f\u6240\u306b\u300c\u6771\u4eac\u90fd\u5343\u4ee3\u7530\u533a1-1-2 exec systeminfo \/s win-pc01 \/u user01 \/p password123!<\/span>\u00a0 \u69d8\u300d\u306e\u3088\u3046\u306a\u5f62\u3067 (\u5b9f\u969b\u306b\u306f\u3053\u3053\u306b\u96e3\u8aad\u5316\u3084\u6697\u53f7\u5316\u3092\u65bd\u3057\u305f\u5f62\u3067) \u60c5\u5831\u3092\u542b\u3081\u3066\u4f55\u901a\u3082\u7e70\u308a\u8fd4\u3057\u5c01\u66f8\u3092\u9001\u308a\u5408\u3046\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002<\/p>\n

\u56f31\u306b\u5177\u4f53\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u653b\u6483\u8005\u304c\u4fb5\u5bb3\u3057\u305f\u30db\u30b9\u30c8\u3092\u63a5\u7d9a\u5143\u3068\u3057\u3001\u653b\u6483\u8005\u304c\u7ba1\u7406\u3057\u3066\u3044\u308b\u30c9\u30e1\u30a4\u30f3 (badsite[.]com) \u4e0a\u3067 DNS \u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308b\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u5b9b\u306b$secret.badsite[.]com<\/span> \u3068\u3044\u3046FQDN\u3092\u89e3\u6c7a\u3059\u308bDNS\u30af\u30a8\u30ea\u30fc\u3092\u7d44\u7e54\u306e\u30ea\u30be\u30eb\u30d0\u30fc\u3092\u7d4c\u7531\u3057\u3066\u9001\u4fe1\u3055\u305b\u3066\u3044\u307e\u3059\u3002\u30ea\u30be\u30eb\u30d0\u30fc\u306f\u30eb\u30fc\u30c8 \u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u3001TLD\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u3001\u653b\u6483\u8005\u914d\u4e0b\u306e\u30c9\u30e1\u30a4\u30f3\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u306e\u9806\u306b\u518d\u5e30\u7684\u306b\u554f\u3044\u5408\u305b\u3092\u884c\u3044\u3001\u6700\u7d42\u7684\u306b\u653b\u6483\u8005\u304c\u7ba1\u7406\u3059\u308b\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u306eCNAME\u30ec\u30b3\u30fc\u30c9\u304b\u3089\u300csecret.badsite[.]com<\/span> \u306f$payload.badsite[.]com<\/span> \u306e\u5225\u540d\u306a\u306e\u3067\u305d\u306e\u540d\u524d\u3067\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u300d\u3068\u3044\u3046DNS\u5fdc\u7b54\u3092\u53d7\u3051\u53d6\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001C2 \u30b5\u30fc\u30d0\u30fc\u306f$secret<\/span> \u306e\u30c7\u30fc\u30bf\u3092\u3001\u611f\u67d3\u30db\u30b9\u30c8\u5074\u306f$payload<\/span> \u306e\u30c7\u30fc\u30bf\u3092\u53d7\u3051\u53d6\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059(\u306a\u304a\u3001\u3053\u306e\u56f3\u306e$secret<\/span> \u3001$payload<\/span>\u00a0\u306f\u5909\u6570\u540d\u3067\u3001\u3053\u308c\u3089\u306e\u5909\u6570\u306e\u306a\u304b\u306b\u3001\u5b9f\u969b\u306e\u6697\u53f7\u5316\/\u96e3\u8aad\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf\u304c\u5165\u3063\u3066\u3044\u308b\u3068\u8003\u3048\u3066\u304f\u3060\u3055\u3044)\u3002<\/p>\n

\u3064\u307e\u308a\u3001\u63a5\u7d9a\u5143\u74b0\u5883\u3067DNS\u30af\u30a8\u30ea\u30fc\u306e\u9001\u51fa\u304c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306b\u59a8\u5bb3\u3055\u308c\u3066\u3044\u306a\u3051\u308c\u3070\u3001DNS\u30af\u30a8\u30ea\u30fc\u3068\u5fdc\u7b54\u306e\u3084\u308a\u3068\u308a\u3060\u3051\u3067\u3001\u653b\u6483\u8005\u306f\u6a5f\u5fae\u60c5\u5831($secret<\/span> )\u3092\u6301\u3061\u51fa\u3057\u305f\u308a\u3001\u30da\u30a4\u30ed\u30fc\u30c9($payload<\/span>\u00a0)\u3092\u6301\u3061\u8fbc\u3093\u3060\u308a\u3067\u304d\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

\"\u56f31.<\/span><\/div><\/a>
\u56f31. DNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u3092\u4f7f\u3063\u3066\u611f\u67d3\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b7\u30b9\u30c6\u30e0\u3068\u653b\u6483\u8005\u306e\u7ba1\u7406\u3059\u308b\u30c9\u30e1\u30a4\u30f3\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u3068\u306e\u9593\u3067\u60c5\u5831\u3092\u3084\u308a\u3068\u308a<\/figcaption><\/figure>\n

<\/a>\u6700\u8fd1\u78ba\u8a8d\u3055\u308c\u3066\u3044\u308b\u6280\u8853\u5fdc\u7528<\/h2>\n

\u5148\u306b\u3042\u3052\u305f\u306e\u306fDNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u3092C2(\u30b3\u30de\u30f3\u30c9&\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb)\u306b\u5fdc\u7528\u3057\u305f\u4f8b\u3067\u3059\u304c\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u304c\u624b\u8584\u306b\u306a\u308a\u304c\u3061\u306aDNS\u30b5\u30fc\u30d3\u30b9\u306f\u3001C2\u3092\u542b\u3080\u3055\u307e\u3056\u307e\u306a\u653b\u6483\u6280\u8853\u306b\u5fdc\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u4e3b\u306a4\u3064\u306e\u6280\u8853\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n

<\/a>C2 (\u30b3\u30de\u30f3\u30c9&\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb)<\/h3>\n

DNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u6280\u8853\u306e\u5fdc\u7528\u306e\u4ee3\u8868\u4f8b\u3068\u3044\u3048\u308b\u306e\u304c\u5148\u306b\u3082\u3042\u3052\u305f\u30b3\u30de\u30f3\u30c9&\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3067\u3059\u3002<\/p>\n

\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30e1\u30fc\u30eb\u306a\u3069\u306e\u624b\u6bb5\u3067\u88ab\u5bb3\u8005\u74b0\u5883\u306e\u30db\u30b9\u30c8\u3092\u4fb5\u5bb3\u5f8c\u3001\u305d\u306e\u30db\u30b9\u30c8\u304b\u3089\u88ab\u5bb3\u8005\u306e\u30b7\u30b9\u30c6\u30e0\u60c5\u5831\u3084\u30e6\u30fc\u30b6\u30fc\u306e\u30af\u30ec\u30c7\u30f3\u30b7\u30e3\u30eb\u3092\u6301\u3061\u51fa\u3057\u305f\u308a\u3001\u653b\u6483\u8005\u306e\u914d\u4e0b\u306b\u3042\u308b\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u8ffd\u52a0\u306e\u30b3\u30de\u30f3\u30c9\u3092\u9001\u308a\u8fbc\u3093\u3060\u308a\u3059\u308b\u7528\u9014\u306bDNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u6280\u8853\u304c\u7528\u3044\u3089\u308c\u308b\u30b1\u30fc\u30b9\u3067\u3059\u3002\u6700\u7d42\u7684\u306b\u7a83\u53d6\u3057\u305f\u30c7\u30fc\u30bf\u306e\u6f0f\u51fa\u306b\u3082DNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u304c\u4f7f\u308f\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u3001\u6301\u3061\u51fa\u3055\u308c\u308b\u30c7\u30fc\u30bf\u306e\u91cf\u306b\u3088\u3063\u3066\u306f\u3001\u975e\u5e38\u306b\u591a\u6570\u306eDNS\u30af\u30a8\u30ea\u30fc\u304c\u7d44\u7e54\u5185\u306e\u30db\u30b9\u30c8\u304b\u3089\u51fa\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

<\/a>VPN (\u4eee\u60f3\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af)<\/h3>\n

C2\u3068\u4e26\u3093\u3067\u3088\u304fDNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u6280\u8853\u304c\u5229\u7528\u3055\u308c\u308b\u306e\u304cVPN(Virtual Private Network: \u4eee\u60f3\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af) \u3067\u3059\u3002<\/p>\n

\u305f\u3068\u3048\u3070\u81ea\u8eab\u304c\u6240\u5c5e\u3059\u308b\u7d44\u7e54\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306b\u59a8\u5bb3\u3055\u308c\u305a\u3001\u7d44\u7e54\u3067\u306f\u691c\u95b2\u3084\u30d6\u30ed\u30c3\u30af\u306e\u5bfe\u8c61\u3068\u306a\u3063\u3066\u3044\u308b\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u95b2\u89a7\u3057\u305f\u3044\u5f93\u696d\u54e1\u304c\u3001DNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u6280\u8853\u3092\u4f7f\u3063\u3066VPN\u3092\u5b9f\u88c5\u3057\u3066\u3044\u308b\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3059\u308b\u3001\u3068\u3044\u3063\u305f\u30b1\u30fc\u30b9\u304c\u305d\u306e\u4ee3\u8868\u7684\u306a\u4f8b\u3067\u3059\u3002\u3053\u306e\u307b\u304b\u904e\u53bb\u306bUnit 42\u304c\u8abf\u67fb\u3057\u305f\u4f8b\u3067\u306f\u3001\u904b\u8f38\u30b5\u30fc\u30d3\u30b9\u304c\u6709\u6599\u3067\u63d0\u4f9b\u3057\u3066\u3044\u308b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u30b5\u30fc\u30d3\u30b9\u306b\u30bf\u30c0\u4e57\u308a\u3059\u308b\u305f\u3081\u306bDNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u6280\u8853\u3067VPN\u3092\u5b9f\u88c5\u3057\u3066\u3044\u308bVPN\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u3044\u305f\u4f8b<\/a>\u304c\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

VPN\u306e\u5834\u5408\u3001\u305f\u3068\u3048\u5916\u90e8\u304b\u3089\u306e\u521d\u671f\u4fb5\u5bb3\u304c\u306a\u304f\u3068\u3082\u3001\u5185\u90e8\u95a2\u4fc2\u8005\u304c\u6545\u610f\u3042\u308b\u3044\u306f\u7121\u81ea\u899a\u306bDNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u3067\u5b9f\u88c5\u3057\u305fVPN\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3053\u3068\u3092\u9632\u5fa1\u5074\u306f\u7406\u89e3\u3057\u3066\u304a\u304b\u306d\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n

<\/a>\u8ffd\u8de1<\/h3>\n

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<\/a>\u30b9\u30ad\u30e3\u30f3<\/h3>\n

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<\/a>\u304a\u308f\u308a\u306b<\/h2>\n

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\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306f DNS \u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u3092\u76e3\u8996\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3057\u3001\u305d\u306e\u691c\u51fa\u7d50\u679c\u3092\u5f0a\u793e DNS Security<\/a> \u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306b\u57cb\u3081\u8fbc\u3093\u3067\u3044\u307e\u3059\u3002
\n\u307e\u305f\u3001\u5f0a\u793e\u306e\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb<\/a>\u3092\u3054\u5229\u7528\u306e\u304a\u5ba2\u3055\u307e\u306f\u3001\u3053\u306e DNS Security \u306e\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u3092\u901a\u3058\u3001\u3053\u306e\u691c\u51fa\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u60aa\u610f\u306e\u3042\u308b\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u304b\u3089\u3054\u81ea\u8eab\u306e\u74b0\u5883\u3092\u4fdd\u8b77\u3067\u304d\u307e\u3059\u3002\u3055\u3089\u306b\u3001Advanced URL Filtering<\/a> \u306e\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u306b\u3088\u308a\u30c9\u30e1\u30a4\u30f3\u3084 IP \u30a2\u30c9\u30ec\u30b9\u30ec\u30d9\u30eb\u3067\u306e\u4fdd\u8b77\u3082\u53d7\u3051\u3066\u3044\u307e\u3059\u3002<\/div>\n","protected":false},"excerpt":{"rendered":"

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DNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u6280\u8853\u3068\u306f DNS\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u6280\u8853\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u304c\u624b\u8584\u306b\u306a\u308a\u304c\u3061\u306a\u3053\u306eDNS\u30b5\u30fc\u30d3\u30b9\u3092\u9006\u624b\u306b\u53d6\u308a\u3001\u5bc6\u304b\u306b\u4ea4\u63db\u3057\u305f\u3044\u60c5\u5831\u306e\u3084\u308a\u3068\u308a\u306bDNS\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u3046\u6280\u8853\u3067\u3059\u3002\u3055\u304d\u307b\u3069\u306e\u90f5\u4fbf\u306e\u4f8b\u3067\u3044\u3046\u306a\u3089\u3001\u300c\u5b9b\u5148\u4f4f\u6240\u300d\u3084\u300c\u5dee\u51fa\u4eba\u4f4f\u6240\u300d\u306b\u3084\u308a\u3068\u308a\u3057\u305f\u3044\u60c5\u5831\u3092\u542b\u3081\u3066\u3057\u307e\u3046\u306e\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u5c01\u66f8\u306e\u5b9b\u5148\u4f4f\u6240\u306b\u300c\u6771\u4eac\u90fd\u5343\u4ee3\u7530\u533a1-1-1 victiminfo win-pc01 user01 password123!\u00a0 \u69d8\u300d\u3068\u3057\u3066\u5c01\u66f8\u3092\u9001\u308a\u3001\u8fd4\u4fe1\u3059\u308b\u5c01\u66f8\u306e\u5b9b\u5148\u4f4f\u6240\u306b\u300c\u6771\u4eac\u90fd\u5343\u4ee3\u7530\u533a1-1-2 exec systeminfo \/s win-pc01 \/u user01 \/p password123!\u00a0 \u69d8\u300d\u306e\u3088\u3046\u306a\u5f62\u3067 (\u5b9f\u969b\u306b\u306f\u3053\u3053\u306b\u96e3\u8aad\u5316\u3084\u6697\u53f7\u5316\u3092\u65bd\u3057\u305f\u5f62\u3067) \u60c5\u5831\u3092\u542b\u3081\u3066\u4f55\u901a\u3082\u7e70\u308a\u8fd4\u3057\u5c01\u66f8\u3092\u9001\u308a\u5408\u3046\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002 \u56f31\u306b\u5177\u4f53\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u653b\u6483\u8005\u304c\u4fb5\u5bb3\u3057\u305f\u30db\u30b9\u30c8\u3092\u63a5\u7d9a\u5143\u3068\u3057\u3001\u653b\u6483\u8005\u304c\u7ba1\u7406\u3057\u3066\u3044\u308b\u30c9\u30e1\u30a4\u30f3 (badsite[.]com) \u4e0a\u3067 DNS \u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308b\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u5b9b\u306b$secret.badsite[.]com \u3068\u3044\u3046FQDN\u3092\u89e3\u6c7a\u3059\u308bDNS\u30af\u30a8\u30ea\u30fc\u3092\u7d44\u7e54\u306e\u30ea\u30be\u30eb\u30d0\u30fc\u3092\u7d4c\u7531\u3057\u3066\u9001\u4fe1\u3055\u305b\u3066\u3044\u307e\u3059\u3002\u30ea\u30be\u30eb\u30d0\u30fc\u306f\u30eb\u30fc\u30c8 \u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u3001TLD\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u3001\u653b\u6483\u8005\u914d\u4e0b\u306e\u30c9\u30e1\u30a4\u30f3\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u306e\u9806\u306b\u518d\u5e30\u7684\u306b\u554f\u3044\u5408\u305b\u3092\u884c\u3044\u3001\u6700\u7d42\u7684\u306b\u653b\u6483\u8005\u304c\u7ba1\u7406\u3059\u308b\u30c9\u30e1\u30a4\u30f3 \u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u306eCNAME\u30ec\u30b3\u30fc\u30c9\u304b\u3089\u300csecret.badsite[.]com \u306f$payload.badsite[.]com 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