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\n-SolarWinds\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u653b\u6483\u306eDNS\u306e\u7279\u5fb4<\/a>
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\n\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3<\/a>
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\n-\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0<\/a>
\n-\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9DNS\u306e\u60aa\u7528<\/a>
\n\u7d50\u8ad6<\/a>
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<\/a>\u56f31 \u65e5\u6b21\u3067\u691c\u51fa\u3057\u3066\u3044\u308b\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u6570<\/figcaption><\/figure>\n![\"\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306eDNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u6b63\u898f\u5316\u3002\u3053\u306e\u7dda\u306f\u30c9\u30e1\u30a4\u30f3\u304c\u300c\u4f11\u7720\u300d\u72b6\u614b\u304b\u3089\u5510\u7a81\u306b\u300c\u9ad8\u6d3b\u6027\u300d\u306b\u306a\u3063\u305f\u3068\u304d\u306b\u8d77\u3053\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u6025\u5897\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002]()
<\/a>\u56f32 \u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306eDNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u6b63\u898f\u5316<\/figcaption><\/figure>\n\u56f31\u306b\u793a\u3059\u3088\u3046\u306b\u3001\u79c1\u305f\u3061\u306e\u691c\u51fa\u5668\u306f\u30012021\u5e749\u6708\u306b\u65e5\u6b21\u3067\u7d0426,000\u4ef6\u306e\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u3092\u6355\u6349\u3057\u307e\u3057\u305f\u3002\u56f32\u306f\u3001\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u304c\u30d0\u30fc\u30b9\u30c8\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u53d7\u4fe1\u3057\u305f\u65e5\u306e\u524d\u5f8c\u306e\u5e73\u5747DNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30d7\u30ed\u30c3\u30c8\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u3053\u306e\u50be\u5411\u30c7\u30fc\u30bf\u306f\u3001\u6d3b\u6027\u5316\u3057\u305f\u65e5\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u57fa\u3065\u3044\u3066\u6b63\u898f\u5316\u3055\u308c\u3066\u3044\u307e\u3059(\u3064\u307e\u308a0\u65e5\u76ee\u306e\u6b63\u898f\u5316\u3055\u308c\u305fDNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f1\u3068\u306a\u308a\u307e\u3059)\u3002\u6d3b\u6027\u5316\u3057\u305f\u65e5\u306b\u306f\u3001\u3053\u308c\u3089\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u6d3b\u52d5\u91cf\u306f\u3001\u5e73\u5747\u306711.3\u500d\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u5f8c\u30821\u65e5\u306e\u5e73\u5747\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u5897\u3048\u7d9a\u3051\u30016\u500d\u4ee5\u4e0a\u306b\u9054\u3057\u3066\u3044\u307e\u3059\u3002\u5f0a\u793eDNS\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u3054\u5229\u7528\u306e\u304a\u5ba2\u69d8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u3053\u308c\u3089\u30c9\u30e1\u30a4\u30f3\u3078\u306eDNS\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u3001\u6d3b\u6027\u5316\u65e5\u304b\u3089\u6bce\u65e5\u7d04130\u4e07\u4ef6\u89b3\u6e2c\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n![\"\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306e\u30ab\u30c6\u30b4\u30ea\u5206\u5e03:]()
<\/a>\u56f33 \u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306e\u30ab\u30c6\u30b4\u30ea\u5206\u5e03<\/figcaption><\/figure>\n\u3053\u308c\u3089\u306e\u6226\u7565\u7684\u306b\u719f\u6210\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u3082\u305f\u3089\u3059\u8105\u5a01\u3092\u8a55\u4fa1\u3059\u308b\u305f\u3081\u3001\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306eURL Filtering<\/a>\u304b\u3089\u3053\u308c\u3089\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u3069\u306e\u3088\u3046\u306b\u5206\u985e\u3055\u308c\u3066\u3044\u308b\u304b\u3068\u3044\u3046\u60c5\u5831\u3092\u53d6\u5f97\u3057\u3001\u5408\u308f\u305b\u3066VirusTotal\u306e\u30b9\u30b3\u30a2\u3092\u53d6\u5f97\u3057\u307e\u3057\u305f\u3002\u305d\u3057\u3066\u3053\u308c\u3089\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u300cmalicious(\u60aa\u610f\u306e\u3042\u308b)\u300d\u3001\u300csuspicious(\u7591\u308f\u3057\u3044)\u300d\u3001\u300cnot safe for work (\u8077\u5834\u3067\u306e\u95b2\u89a7\u306b\u9069\u3055\u306a\u3044)\u300d\u3001\u300c\u305d\u306e\u4ed6\u300d\u306e4\u3064\u306e\u30b0\u30eb\u30fc\u30d7\u306b\u5206\u3051\u307e\u3057\u305f\u3002\u300cmalicious(\u60aa\u610f\u306e\u3042\u308b)\u300d\u30b0\u30eb\u30fc\u30d7\u306b\u306f\u3001malware(\u30de\u30eb\u30a6\u30a7\u30a2)\u3001command and control(\u30b3\u30de\u30f3\u30c9&\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb)\u3001grayware(\u30b0\u30ec\u30a4\u30a6\u30a7\u30a2)\u3001phishing(\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0)\u3001VirusTotal\u306e\u3044\u305a\u308c\u304b\u306e\u30d9\u30f3\u30c0\u306b\u3088\u3063\u3066\u691c\u51fa\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u300csuspicious(\u7591\u308f\u3057\u3044)\u300d\u30b0\u30eb\u30fc\u30d7\u306b\u306f\u3001parked(\u30d1\u30fc\u30ad\u30f3\u30b0\u30c9\u30e1\u30a4\u30f3)\u3001suspicious(\u7591\u308f\u3057\u3044)\u3001insufficient content (\u30b3\u30f3\u30c6\u30f3\u30c4\u4e0d\u8db3)\u3001high risk(\u9ad8\u30ea\u30b9\u30af)\u306b\u5206\u985e\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u542b\u307e\u308c\u307e\u3059\u3002nudity(\u30cc\u30fc\u30c9)\u3001adult(\u30a2\u30c0\u30eb\u30c8)\u3001gambling(\u30ae\u30e3\u30f3\u30d6\u30eb)\u306a\u3069\u306e\u30c6\u30fc\u30de\u306f\u300cnot safe for work(\u8077\u5834\u3067\u306e\u95b2\u89a7\u306b\u9069\u3055\u306a\u3044)\u300d\u306b\u542b\u3081\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b0\u30eb\u30fc\u30d7\u306b\u5f53\u3066\u306f\u307e\u3089\u306a\u3044\u3082\u306e\u306f\u3001\u300c\u305d\u306e\u4ed6\u300d\u3068\u30bf\u30b0\u4ed8\u3051\u3055\u308c\u307e\u3059\u3002 3.8%\u306e\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u304c\u60aa\u610f\u306e\u3042\u308b\u632f\u308b\u821e\u3044\u3092\u898b\u305b\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u306e\u5272\u5408\u306f\u3001NRD\u306e1.27\uff05\u3068\u6bd4\u3079\u30663\u500d\u4ee5\u4e0a\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u308c\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306e22.27%\u306f\u3001\u300c\u60aa\u610f\u306e\u3042\u308b\u300d\u3001\u300c\u7591\u308f\u3057\u3044\u300d\u3001\u307e\u305f\u306f\u300c\u8077\u5834\u3067\u306e\u95b2\u89a7\u306b\u9069\u3055\u306a\u3044\u300d\u30c9\u30e1\u30a4\u30f3\u3067\u3057\u305f\u3002\u3061\u306a\u307f\u306b\u3001Alexa\u306e\u30c8\u30c3\u30d71,000\u30c9\u30e1\u30a4\u30f3\u306e\u3046\u3061\u3001\u3053\u308c\u3089\u306b\u8a72\u5f53\u3059\u308b\u306e\u306f\u308f\u305a\u304b0.07%\u3067\u3059\u3002<\/p>\n<\/a>DGA\u304c\u751f\u6210\u3057\u305f\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306e\u691c\u51fa<\/h2>\n\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u3092\u7279\u5b9a\u3057\u305f\u5f8c\u3001DNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306b\u57fa\u3065\u3044\u3066\u3001\u9032\u884c\u4e2d\u306e\u653b\u6483\u3092\u767a\u898b\u3057\u307e\u3059\u3002SolarWinds\u306e\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u653b\u6483\u306eDNS\u306e\u7279\u5fb4\u3092\u53c2\u8003\u306b\u3001\u540c\u69d8\u306eAPT\u653b\u6483\u3092\u6355\u6349\u3059\u308b\u305f\u3081\u306e\u691c\u77e5\u5668\u3092\u69cb\u7bc9\u3057\u307e\u3057\u305f\u3002<\/p>\n
<\/a>SolarWinds\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u653b\u6483\u306eDNS\u306e\u7279\u5fb4<\/h3>\nSolarWinds\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u3067\u306f\u3001\u4f11\u7720\u4e2d\u306eSUNBURST\u30c8\u30ed\u30a4\u306e\u6728\u99ac\u304cC2\u30c9\u30e1\u30a4\u30f3avsvmcloud[.]com<\/span>\u306b\u5b9a\u671f\u7684\u306b\u30b3\u30f3\u30bf\u30af\u30c8\u3057\u3066\u30b9\u30c6\u30fc\u30bf\u30b9\u5831\u544a\u3084\u30b3\u30de\u30f3\u30c9\u53d7\u4fe1\u3092\u884c\u3063\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u306e\u30cf\u30fc\u30c8\u30d3\u30fc\u30c8\u901a\u4fe1\u306f\u3001\u56fa\u5b9a\u306e\u30db\u30b9\u30c8\u30cd\u30fc\u30e0\u306b\u3088\u3063\u3066\u884c\u308f\u308c\u3066\u304a\u308a\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u91cf\u306f\u9650\u3089\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u3067\u3059\u304c\u3053\u306eC2\u30c9\u30e1\u30a4\u30f3\u304c\u4f11\u7720\u72b6\u614b\u304b\u3089\u899a\u9192\u3059\u308b\u3068\u3001\u30d0\u30fc\u30b9\u30c8DNS\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u5927\u534a\u306f\u65b0\u3057\u3044\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306b\u5bfe\u3059\u308b\u3082\u306e\u3067\u3057\u305f\u3002\u3053\u306e\u30c8\u30ed\u30a4\u306e\u6728\u99ac\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u751f\u6210\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0(DGA)\u3092\u7528\u3044\u3066\u3053\u308c\u3089\u306e\u30db\u30b9\u30c8\u540d\u3092\u52d5\u7684\u306b\u69cb\u7bc9\u3059\u308b\u3053\u3068\u3067\u30c7\u30fc\u30bf\u3092\u6d41\u51fa\u3055\u305b\u3066\u3044\u307e\u3057\u305f\u3002\u5177\u4f53\u7684\u306b\u306f DGAstring.appsync-api.region.avsvmcloud[.]com <\/span>\u3068\u3044\u3046\u5f62\u5f0f\u3067\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u304c\u751f\u6210\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u306e\u300cDGAstring\u300d\u306f\u3001\u611f\u67d3\u7d44\u7e54\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u88fd\u54c1\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u542b\u3080\u3001\u88ab\u5bb3\u8005\u306e\u8eab\u5143\u3092\u6697\u53f7\u5316\u3057\u305f\u6587\u5b57\u5217\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30db\u30b9\u30c8\u540d\u306b\u5bfe\u3059\u308b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u4fe1\u3057\u305f\u653b\u6483\u8005\u306eDNS\u30ea\u30be\u30eb\u30d0\u306f\u3001\u6d41\u51fa\u3057\u305f\u60c5\u5831\u306b\u57fa\u3065\u3044\u3066\u3079\u3064\u306eC2\u30b5\u30fc\u30d0\u30fc\u3092\u6307\u3059CNAME\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u8fd4\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u3088\u3046\u3059\u308b\u306b\u3053\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u306fDGA\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u30c7\u30fc\u30bf\u6d41\u51fa\u3068\u653b\u6483\u30a4\u30f3\u30d5\u30e9\u306e\u30d7\u30ed\u30ad\u30b7\u30ec\u30a4\u30e4\u306e\u8ffd\u52a0\u306b\u5229\u7528\u3057\u3066\u3044\u305f\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n<\/a>\u5f97\u3089\u308c\u305fDNS\u306e\u77e5\u898b\u3092\u6d3b\u7528\u3059\u308b<\/h3>\nSolarWinds\u3068\u540c\u69d8\u306eC2\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u6355\u6349\u3059\u308b\u305f\u3081\u3001\u5f0a\u793e\u306eDGA\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u691c\u51fa\u5668\u306f\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306e\u3059\u3079\u3066\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u30b9\u30ad\u30e3\u30f3\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001DGA\u306b\u3088\u308b\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3078\u306eDNS\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u6025\u5897\u3057\u3066\u3044\u308b\u3082\u306e\u3092\u3001\u6f5c\u5728\u7684\u306aAPT\u306eC2\u30c9\u30e1\u30a4\u30f3\u3068\u3057\u3066\u30e9\u30d9\u30eb\u4ed8\u3051\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001WHOIS\u30ec\u30b3\u30fc\u30c9\u3084\u826f\u6027\u30db\u30b9\u30c8\u540d\u30d1\u30bf\u30fc\u30f3\u306a\u3069\u306e\u8ffd\u52a0\u60c5\u5831\u306b\u57fa\u3065\u304d\u3001\u6b63\u898f\u30b5\u30fc\u30d3\u30b9\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306e\u30d5\u30a3\u30eb\u30bf\u3092\u3044\u304f\u3064\u304b\u5b9f\u88c5\u3057\u307e\u3059\u3002<\/p>\n![\"\u691c\u77e5\u3057\u305f\u30c9\u30e1\u30a4\u30f3\u306e\u6d3b\u6027\u5316\u5f8c\u306eDGA\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u5272\u5408\u306e\u7d2f\u7a4d\u5206\u5e03\u56f3\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002DGA\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7387\u306f\u3001\u3053\u308c\u3089\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u534a\u6570\u3067]()
<\/a>\u56f34 \u691c\u51fa\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u306eDGA\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30ec\u30fc\u30c8\u306e\u7d2f\u7a4d\u5206\u5e03\u56f3(Cumulative Distribution Figure: \u4ee5\u964d\u300cCDF\u300d\u3068\u8868\u8a18)<\/figcaption><\/figure>\nDGA\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u691c\u51fa\u5668\u3067\u306f\u5e73\u5747\u3057\u30661\u65e5\u306b2\u4ef6\u306e\u7591\u308f\u3057\u3044\u30c9\u30e1\u30a4\u30f3\u3092\u691c\u51fa\u3057\u307e\u3057\u305f\u3002\u6d3b\u6027\u65e5\u4ee5\u964d\u306e\u5404\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306f\u3001\u65b0\u305f\u306b\u89b3\u6e2c\u3055\u308c\u305f\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u304a\u3088\u305d2,443\u500b\u6301\u3061\u3001\u3046\u3061161\u500b\u304cDGA\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3067\u3059\u3002\u56f34\u306f\u3001\u6d3b\u6027\u5f8c\u306eDGA\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7387\u306eCDF(\u7d2f\u7a4d\u5206\u5e03\u56f3)\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002DGA\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7387\u306f\u3001\u3053\u308c\u3089\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u534a\u6570\u3067 36.76%\u4ee5\u4e0a\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
<\/a>\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3<\/h2>\n<\/a>APT\u30b9\u30d1\u30a4\u30a6\u30a7\u30a2<\/h3>\n\u79c1\u305f\u3061\u306eDGA\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u691c\u51fa\u5668\u306f\u3001Pegasus\u30b9\u30d1\u30a4\u30a6\u30a7\u30a2\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u306b\u3088\u308b\u7570\u5e38\u306aDNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30d1\u30bf\u30fc\u30f3\u3092\u6355\u6349\u3057\u307e\u3057\u305f\u3002Pegasus\u30b9\u30d1\u30a4\u30a6\u30a7\u30a2\u306f\u3001iOS\u3084Android\u30c7\u30d0\u30a4\u30b9\u306b\u611f\u67d3\u3057\u3001\u30af\u30ec\u30c7\u30f3\u30b7\u30e3\u30eb\u60c5\u5831\u3092\u53ce\u96c6\u3057\u3001\u901a\u8a71\u3084\u30b8\u30aa\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u5c65\u6b74\u3092\u542b\u3080\u30e6\u30fc\u30b6\u30fc\u884c\u52d5\u3092\u8ffd\u8de1\u3057\u307e\u3059\u3002\u691c\u51fa\u3055\u308c\u305f2\u3064\u306eC2\u30c9\u30e1\u30a4\u30f3 permalinking[.]com<\/span> \u3068 opposedarrangement[.]net<\/span> \u306f\u30012019\u5e74\u306b\u767b\u9332\u3055\u308c\u30012021\u5e747\u6708\u306b\u6d3b\u6027\u5316\u3057\u3066DGA\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u5272\u5408\u304c\u9ad8\u3044\u72b6\u614b\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n![\"\u691c\u51fa\u3055\u308c\u305f2\u3064\u306eC2\u30c9\u30e1\u30a4\u30f3]()
<\/a>\u56f35 Pegasus \u30b9\u30d1\u30a4\u30a6\u30a7\u30a2\u306eC2\u30c9\u30e1\u30a4\u30f3\u306eDNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u63a8\u79fb<\/figcaption><\/figure>\u56f35\u306b\u793a\u3059\u3088\u3046\u306b\u30012021\u5e747\u670818\u65e5\u4ee5\u524d\u306e\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u5bfe\u3059\u308bDNS\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u30011\u65e5\u3042\u305f\u308a15\u4ef6\u7a0b\u5ea6\u3067\u3057\u305f\u3002\u6d3b\u6027\u5316\u3057\u305f\u65e5\u306b\u306f\u30011\u65e5\u306eDNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u7a81\u713656\u500d\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u3053\u306e\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u3067\u306f\u3001C2\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u904b\u3076\u305f\u3081\u3001imgdsg4f35.permalinking[.]com <\/span>\u3084 php78mp9v.opposedarrangement[.]net <\/span>\u306a\u3069\u3001\u8907\u6570\u306eDGA\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u5168\u4f53\u306e\u50be\u5411\u3068\u3057\u3066\u306f\u3001DGA\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u91cf\u306f\u5168\u4f53\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u63a8\u79fb\u306b\u3042\u308f\u305b\u3066\u5897\u52a0\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u305f\u3060\u3057\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u671f\u9593\u4e2d\u3001DGA\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u5272\u5408\u306f\u5927\u5e45\u306b\u5897\u52a0\u3057\u307e\u3057\u305f\u30027\u670818\u65e5\u4ee5\u524d\u306eDGA\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u6bd4\u7387\u306f23.22\uff05\u3060\u3063\u305f\u306e\u306b\u5bfe\u3057\u3001\u6d3b\u6027\u5316\u5f8c\u306f42.04\uff05\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/a>\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0<\/h3>\n![\"\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306e\u30db\u30b9\u30c8\u540d\u306e1\u3064\u3067\u3042\u308bjcxivnmqfqoiopdlvejvgucpmrfgmhwdlrkvzqyb.ui1io[.]cn\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3001URL\u306b\u7279\u5b9a\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u3001\u8a2a\u554f\u8005\u3092\u5225\u306e\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0DGA\u30c9\u30e1\u30a4\u30f3\u3067\u3042\u308bgjahqfcyr[.]cn\u306b\u8ee2\u9001\u3057\u307e\u3059\u3002\u305d\u308c\u4ee5\u5916\u306e\u5834\u5408\u306f\u3001\u6b63\u898f\u306e\u9280\u884cWeb\u30b5\u30a4\u30c8\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3055\u308c\u307e\u3059\u3002\"]()
\u56f36 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<\/span>\u306e\u30b9\u30af\u30ea\u30d7\u30c8(\u56f36)\u306f\u3001URL\u306b\u7279\u5b9a\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u306b\u8a2a\u554f\u8005\u3092\u5225\u306e\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0DGA\u30c9\u30e1\u30a4\u30f3\u3067\u3042\u308b gjahqfcyr[.]cn 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\u56f37 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\u672c\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u7279\u5b9a\u306e\u6642\u9593\u5185\u3067\u306eDNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u91cf\u306b\u3088\u3063\u3066\u30c9\u30e1\u30a4\u30f3\u306e\u6d3b\u6027\u5ea6\u3092\u5b9a\u91cf\u5316\u3057\u3066\u3044\u307e\u3059\u30022\u3064\u306e\u3057\u304d\u3044\u5024\u3092\u7528\u3044\u3066\u300c\u6d3b\u6027\u6307\u6570\u300d\u306e\u7bc4\u56f2\u3092\u300c\u4f11\u7720\u30c9\u30e1\u30a4\u30f3(\u6d3b\u52d5\u6307\u6570\u304c75\u30d1\u30fc\u30bb\u30f3\u30bf\u30a4\u30eb\u4ee5\u4e0b\u306e\u30c9\u30e1\u30a4\u30f3)\u300d\u3001\u300c\u6a19\u6e96\u30c9\u30e1\u30a4\u30f3(75\u30d1\u30fc\u30bb\u30f3\u30bf\u30a4\u30eb\u304b\u308995\u30d1\u30fc\u30bb\u30f3\u30bf\u30a4\u30eb\u306e\u9593\u306e\u30c9\u30e1\u30a4\u30f3)\u300d\u3001\u300c\u9ad8\u6d3b\u6027\u30c9\u30e1\u30a4\u30f3(\u4e0a\u4f4d5\uff05\u306e\u30c9\u30e1\u30a4\u30f3)\u300d\u306e3\u3064\u306e\u30b0\u30eb\u30fc\u30d7\u306b\u5206\u3051\u307e\u3059\u3002<\/p>\n
\u3042\u308b\u30c9\u30e1\u30a4\u30f3\u4e0a\u3067\u6b63\u898f\u306e\u30b5\u30fc\u30d3\u30b9\u304c\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3055\u308c\u305f\u5834\u5408\u3001\u305d\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u91cf\u306f\u5f90\u3005\u306b\u5897\u52a0\u3057\u3066\u3044\u304f\u306e\u304c\u3075\u3064\u3046\u3067\u3059\u3002\u9006\u306b\u3001\u9577\u3044\u9593\u4f11\u7720\u72b6\u614b\u306b\u3042\u3063\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u3001\u7a81\u5982\u5927\u91cf\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u53d7\u4fe1\u3057\u3060\u3059\u306e\u306f\u7570\u5e38\u3067\u3059\u3002\u3053\u306e\u76f4\u611f\u306b\u57fa\u3065\u3044\u3066\u672c\u30b7\u30b9\u30c6\u30e0\u3067\u4f11\u7720\u30c9\u30e1\u30a4\u30f3\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u7d99\u7d9a\u7684\u306b\u76e3\u8996\u3057\u3001\u300c\u77ed\u671f\u9593\u3067\u9ad8\u6d3b\u6027\u72b6\u614b\u306b\u30b8\u30e3\u30f3\u30d7\u3057\u305f\u30c9\u30e1\u30a4\u30f3\u300d\u3092\u300c\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u300d\u3068\u3057\u3066\u6355\u6349\u3057\u307e\u3059\u3002<\/p>\n![\"\u79c1\u305f\u3061\u306e\u30b7\u30b9\u30c6\u30e0\u304c\u65e5\u6b21\u3067\u691c\u51fa\u3057\u3066\u3044\u308b\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u6570]()
<\/a>\u56f31 \u65e5\u6b21\u3067\u691c\u51fa\u3057\u3066\u3044\u308b\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u6570<\/figcaption><\/figure>\n![\"\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306eDNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u6b63\u898f\u5316\u3002\u3053\u306e\u7dda\u306f\u30c9\u30e1\u30a4\u30f3\u304c\u300c\u4f11\u7720\u300d\u72b6\u614b\u304b\u3089\u5510\u7a81\u306b\u300c\u9ad8\u6d3b\u6027\u300d\u306b\u306a\u3063\u305f\u3068\u304d\u306b\u8d77\u3053\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u6025\u5897\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002]()
<\/a>\u56f32 \u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306eDNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u6b63\u898f\u5316<\/figcaption><\/figure>\n\u56f31\u306b\u793a\u3059\u3088\u3046\u306b\u3001\u79c1\u305f\u3061\u306e\u691c\u51fa\u5668\u306f\u30012021\u5e749\u6708\u306b\u65e5\u6b21\u3067\u7d0426,000\u4ef6\u306e\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u3092\u6355\u6349\u3057\u307e\u3057\u305f\u3002\u56f32\u306f\u3001\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u304c\u30d0\u30fc\u30b9\u30c8\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u53d7\u4fe1\u3057\u305f\u65e5\u306e\u524d\u5f8c\u306e\u5e73\u5747DNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30d7\u30ed\u30c3\u30c8\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u3053\u306e\u50be\u5411\u30c7\u30fc\u30bf\u306f\u3001\u6d3b\u6027\u5316\u3057\u305f\u65e5\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u57fa\u3065\u3044\u3066\u6b63\u898f\u5316\u3055\u308c\u3066\u3044\u307e\u3059(\u3064\u307e\u308a0\u65e5\u76ee\u306e\u6b63\u898f\u5316\u3055\u308c\u305fDNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f1\u3068\u306a\u308a\u307e\u3059)\u3002\u6d3b\u6027\u5316\u3057\u305f\u65e5\u306b\u306f\u3001\u3053\u308c\u3089\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u6d3b\u52d5\u91cf\u306f\u3001\u5e73\u5747\u306711.3\u500d\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u5f8c\u30821\u65e5\u306e\u5e73\u5747\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u5897\u3048\u7d9a\u3051\u30016\u500d\u4ee5\u4e0a\u306b\u9054\u3057\u3066\u3044\u307e\u3059\u3002\u5f0a\u793eDNS\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u3054\u5229\u7528\u306e\u304a\u5ba2\u69d8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u3053\u308c\u3089\u30c9\u30e1\u30a4\u30f3\u3078\u306eDNS\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u3001\u6d3b\u6027\u5316\u65e5\u304b\u3089\u6bce\u65e5\u7d04130\u4e07\u4ef6\u89b3\u6e2c\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n![\"\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306e\u30ab\u30c6\u30b4\u30ea\u5206\u5e03:]()
<\/a>\u56f33 \u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306e\u30ab\u30c6\u30b4\u30ea\u5206\u5e03<\/figcaption><\/figure>\n\u3053\u308c\u3089\u306e\u6226\u7565\u7684\u306b\u719f\u6210\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u3082\u305f\u3089\u3059\u8105\u5a01\u3092\u8a55\u4fa1\u3059\u308b\u305f\u3081\u3001\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306eURL Filtering<\/a>\u304b\u3089\u3053\u308c\u3089\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u3069\u306e\u3088\u3046\u306b\u5206\u985e\u3055\u308c\u3066\u3044\u308b\u304b\u3068\u3044\u3046\u60c5\u5831\u3092\u53d6\u5f97\u3057\u3001\u5408\u308f\u305b\u3066VirusTotal\u306e\u30b9\u30b3\u30a2\u3092\u53d6\u5f97\u3057\u307e\u3057\u305f\u3002\u305d\u3057\u3066\u3053\u308c\u3089\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u300cmalicious(\u60aa\u610f\u306e\u3042\u308b)\u300d\u3001\u300csuspicious(\u7591\u308f\u3057\u3044)\u300d\u3001\u300cnot safe for work (\u8077\u5834\u3067\u306e\u95b2\u89a7\u306b\u9069\u3055\u306a\u3044)\u300d\u3001\u300c\u305d\u306e\u4ed6\u300d\u306e4\u3064\u306e\u30b0\u30eb\u30fc\u30d7\u306b\u5206\u3051\u307e\u3057\u305f\u3002\u300cmalicious(\u60aa\u610f\u306e\u3042\u308b)\u300d\u30b0\u30eb\u30fc\u30d7\u306b\u306f\u3001malware(\u30de\u30eb\u30a6\u30a7\u30a2)\u3001command and control(\u30b3\u30de\u30f3\u30c9&\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb)\u3001grayware(\u30b0\u30ec\u30a4\u30a6\u30a7\u30a2)\u3001phishing(\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0)\u3001VirusTotal\u306e\u3044\u305a\u308c\u304b\u306e\u30d9\u30f3\u30c0\u306b\u3088\u3063\u3066\u691c\u51fa\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u300csuspicious(\u7591\u308f\u3057\u3044)\u300d\u30b0\u30eb\u30fc\u30d7\u306b\u306f\u3001parked(\u30d1\u30fc\u30ad\u30f3\u30b0\u30c9\u30e1\u30a4\u30f3)\u3001suspicious(\u7591\u308f\u3057\u3044)\u3001insufficient content (\u30b3\u30f3\u30c6\u30f3\u30c4\u4e0d\u8db3)\u3001high risk(\u9ad8\u30ea\u30b9\u30af)\u306b\u5206\u985e\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u542b\u307e\u308c\u307e\u3059\u3002nudity(\u30cc\u30fc\u30c9)\u3001adult(\u30a2\u30c0\u30eb\u30c8)\u3001gambling(\u30ae\u30e3\u30f3\u30d6\u30eb)\u306a\u3069\u306e\u30c6\u30fc\u30de\u306f\u300cnot safe for work(\u8077\u5834\u3067\u306e\u95b2\u89a7\u306b\u9069\u3055\u306a\u3044)\u300d\u306b\u542b\u3081\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b0\u30eb\u30fc\u30d7\u306b\u5f53\u3066\u306f\u307e\u3089\u306a\u3044\u3082\u306e\u306f\u3001\u300c\u305d\u306e\u4ed6\u300d\u3068\u30bf\u30b0\u4ed8\u3051\u3055\u308c\u307e\u3059\u3002 3.8%\u306e\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u304c\u60aa\u610f\u306e\u3042\u308b\u632f\u308b\u821e\u3044\u3092\u898b\u305b\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u306e\u5272\u5408\u306f\u3001NRD\u306e1.27\uff05\u3068\u6bd4\u3079\u30663\u500d\u4ee5\u4e0a\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u308c\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306e22.27%\u306f\u3001\u300c\u60aa\u610f\u306e\u3042\u308b\u300d\u3001\u300c\u7591\u308f\u3057\u3044\u300d\u3001\u307e\u305f\u306f\u300c\u8077\u5834\u3067\u306e\u95b2\u89a7\u306b\u9069\u3055\u306a\u3044\u300d\u30c9\u30e1\u30a4\u30f3\u3067\u3057\u305f\u3002\u3061\u306a\u307f\u306b\u3001Alexa\u306e\u30c8\u30c3\u30d71,000\u30c9\u30e1\u30a4\u30f3\u306e\u3046\u3061\u3001\u3053\u308c\u3089\u306b\u8a72\u5f53\u3059\u308b\u306e\u306f\u308f\u305a\u304b0.07%\u3067\u3059\u3002<\/p>\n<\/a>DGA\u304c\u751f\u6210\u3057\u305f\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306e\u691c\u51fa<\/h2>\n\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u3092\u7279\u5b9a\u3057\u305f\u5f8c\u3001DNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306b\u57fa\u3065\u3044\u3066\u3001\u9032\u884c\u4e2d\u306e\u653b\u6483\u3092\u767a\u898b\u3057\u307e\u3059\u3002SolarWinds\u306e\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u653b\u6483\u306eDNS\u306e\u7279\u5fb4\u3092\u53c2\u8003\u306b\u3001\u540c\u69d8\u306eAPT\u653b\u6483\u3092\u6355\u6349\u3059\u308b\u305f\u3081\u306e\u691c\u77e5\u5668\u3092\u69cb\u7bc9\u3057\u307e\u3057\u305f\u3002<\/p>\n
<\/a>SolarWinds\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u653b\u6483\u306eDNS\u306e\u7279\u5fb4<\/h3>\nSolarWinds\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u3067\u306f\u3001\u4f11\u7720\u4e2d\u306eSUNBURST\u30c8\u30ed\u30a4\u306e\u6728\u99ac\u304cC2\u30c9\u30e1\u30a4\u30f3avsvmcloud[.]com<\/span>\u306b\u5b9a\u671f\u7684\u306b\u30b3\u30f3\u30bf\u30af\u30c8\u3057\u3066\u30b9\u30c6\u30fc\u30bf\u30b9\u5831\u544a\u3084\u30b3\u30de\u30f3\u30c9\u53d7\u4fe1\u3092\u884c\u3063\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u306e\u30cf\u30fc\u30c8\u30d3\u30fc\u30c8\u901a\u4fe1\u306f\u3001\u56fa\u5b9a\u306e\u30db\u30b9\u30c8\u30cd\u30fc\u30e0\u306b\u3088\u3063\u3066\u884c\u308f\u308c\u3066\u304a\u308a\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u91cf\u306f\u9650\u3089\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u3067\u3059\u304c\u3053\u306eC2\u30c9\u30e1\u30a4\u30f3\u304c\u4f11\u7720\u72b6\u614b\u304b\u3089\u899a\u9192\u3059\u308b\u3068\u3001\u30d0\u30fc\u30b9\u30c8DNS\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u5927\u534a\u306f\u65b0\u3057\u3044\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306b\u5bfe\u3059\u308b\u3082\u306e\u3067\u3057\u305f\u3002\u3053\u306e\u30c8\u30ed\u30a4\u306e\u6728\u99ac\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u751f\u6210\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0(DGA)\u3092\u7528\u3044\u3066\u3053\u308c\u3089\u306e\u30db\u30b9\u30c8\u540d\u3092\u52d5\u7684\u306b\u69cb\u7bc9\u3059\u308b\u3053\u3068\u3067\u30c7\u30fc\u30bf\u3092\u6d41\u51fa\u3055\u305b\u3066\u3044\u307e\u3057\u305f\u3002\u5177\u4f53\u7684\u306b\u306f DGAstring.appsync-api.region.avsvmcloud[.]com <\/span>\u3068\u3044\u3046\u5f62\u5f0f\u3067\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u304c\u751f\u6210\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u306e\u300cDGAstring\u300d\u306f\u3001\u611f\u67d3\u7d44\u7e54\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u88fd\u54c1\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u542b\u3080\u3001\u88ab\u5bb3\u8005\u306e\u8eab\u5143\u3092\u6697\u53f7\u5316\u3057\u305f\u6587\u5b57\u5217\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30db\u30b9\u30c8\u540d\u306b\u5bfe\u3059\u308b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u4fe1\u3057\u305f\u653b\u6483\u8005\u306eDNS\u30ea\u30be\u30eb\u30d0\u306f\u3001\u6d41\u51fa\u3057\u305f\u60c5\u5831\u306b\u57fa\u3065\u3044\u3066\u3079\u3064\u306eC2\u30b5\u30fc\u30d0\u30fc\u3092\u6307\u3059CNAME\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u8fd4\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u3088\u3046\u3059\u308b\u306b\u3053\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u306fDGA\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u30c7\u30fc\u30bf\u6d41\u51fa\u3068\u653b\u6483\u30a4\u30f3\u30d5\u30e9\u306e\u30d7\u30ed\u30ad\u30b7\u30ec\u30a4\u30e4\u306e\u8ffd\u52a0\u306b\u5229\u7528\u3057\u3066\u3044\u305f\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n<\/a>\u5f97\u3089\u308c\u305fDNS\u306e\u77e5\u898b\u3092\u6d3b\u7528\u3059\u308b<\/h3>\nSolarWinds\u3068\u540c\u69d8\u306eC2\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u6355\u6349\u3059\u308b\u305f\u3081\u3001\u5f0a\u793e\u306eDGA\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u691c\u51fa\u5668\u306f\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306e\u3059\u3079\u3066\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u30b9\u30ad\u30e3\u30f3\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001DGA\u306b\u3088\u308b\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3078\u306eDNS\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u6025\u5897\u3057\u3066\u3044\u308b\u3082\u306e\u3092\u3001\u6f5c\u5728\u7684\u306aAPT\u306eC2\u30c9\u30e1\u30a4\u30f3\u3068\u3057\u3066\u30e9\u30d9\u30eb\u4ed8\u3051\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001WHOIS\u30ec\u30b3\u30fc\u30c9\u3084\u826f\u6027\u30db\u30b9\u30c8\u540d\u30d1\u30bf\u30fc\u30f3\u306a\u3069\u306e\u8ffd\u52a0\u60c5\u5831\u306b\u57fa\u3065\u304d\u3001\u6b63\u898f\u30b5\u30fc\u30d3\u30b9\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306e\u30d5\u30a3\u30eb\u30bf\u3092\u3044\u304f\u3064\u304b\u5b9f\u88c5\u3057\u307e\u3059\u3002<\/p>\n![\"\u691c\u77e5\u3057\u305f\u30c9\u30e1\u30a4\u30f3\u306e\u6d3b\u6027\u5316\u5f8c\u306eDGA\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u5272\u5408\u306e\u7d2f\u7a4d\u5206\u5e03\u56f3\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002DGA\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7387\u306f\u3001\u3053\u308c\u3089\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u534a\u6570\u3067]()
<\/a>\u56f34 \u691c\u51fa\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u306eDGA\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30ec\u30fc\u30c8\u306e\u7d2f\u7a4d\u5206\u5e03\u56f3(Cumulative Distribution Figure: \u4ee5\u964d\u300cCDF\u300d\u3068\u8868\u8a18)<\/figcaption><\/figure>\nDGA\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u691c\u51fa\u5668\u3067\u306f\u5e73\u5747\u3057\u30661\u65e5\u306b2\u4ef6\u306e\u7591\u308f\u3057\u3044\u30c9\u30e1\u30a4\u30f3\u3092\u691c\u51fa\u3057\u307e\u3057\u305f\u3002\u6d3b\u6027\u65e5\u4ee5\u964d\u306e\u5404\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306f\u3001\u65b0\u305f\u306b\u89b3\u6e2c\u3055\u308c\u305f\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u304a\u3088\u305d2,443\u500b\u6301\u3061\u3001\u3046\u3061161\u500b\u304cDGA\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3067\u3059\u3002\u56f34\u306f\u3001\u6d3b\u6027\u5f8c\u306eDGA\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7387\u306eCDF(\u7d2f\u7a4d\u5206\u5e03\u56f3)\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002DGA\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7387\u306f\u3001\u3053\u308c\u3089\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u534a\u6570\u3067 36.76%\u4ee5\u4e0a\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
<\/a>\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3<\/h2>\n<\/a>APT\u30b9\u30d1\u30a4\u30a6\u30a7\u30a2<\/h3>\n\u79c1\u305f\u3061\u306eDGA\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u691c\u51fa\u5668\u306f\u3001Pegasus\u30b9\u30d1\u30a4\u30a6\u30a7\u30a2\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u306b\u3088\u308b\u7570\u5e38\u306aDNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30d1\u30bf\u30fc\u30f3\u3092\u6355\u6349\u3057\u307e\u3057\u305f\u3002Pegasus\u30b9\u30d1\u30a4\u30a6\u30a7\u30a2\u306f\u3001iOS\u3084Android\u30c7\u30d0\u30a4\u30b9\u306b\u611f\u67d3\u3057\u3001\u30af\u30ec\u30c7\u30f3\u30b7\u30e3\u30eb\u60c5\u5831\u3092\u53ce\u96c6\u3057\u3001\u901a\u8a71\u3084\u30b8\u30aa\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u5c65\u6b74\u3092\u542b\u3080\u30e6\u30fc\u30b6\u30fc\u884c\u52d5\u3092\u8ffd\u8de1\u3057\u307e\u3059\u3002\u691c\u51fa\u3055\u308c\u305f2\u3064\u306eC2\u30c9\u30e1\u30a4\u30f3 permalinking[.]com<\/span> \u3068 opposedarrangement[.]net<\/span> \u306f\u30012019\u5e74\u306b\u767b\u9332\u3055\u308c\u30012021\u5e747\u6708\u306b\u6d3b\u6027\u5316\u3057\u3066DGA\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u5272\u5408\u304c\u9ad8\u3044\u72b6\u614b\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n![\"\u691c\u51fa\u3055\u308c\u305f2\u3064\u306eC2\u30c9\u30e1\u30a4\u30f3]()
<\/a>\u56f35 Pegasus \u30b9\u30d1\u30a4\u30a6\u30a7\u30a2\u306eC2\u30c9\u30e1\u30a4\u30f3\u306eDNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u63a8\u79fb<\/figcaption><\/figure>\u56f35\u306b\u793a\u3059\u3088\u3046\u306b\u30012021\u5e747\u670818\u65e5\u4ee5\u524d\u306e\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u5bfe\u3059\u308bDNS\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u30011\u65e5\u3042\u305f\u308a15\u4ef6\u7a0b\u5ea6\u3067\u3057\u305f\u3002\u6d3b\u6027\u5316\u3057\u305f\u65e5\u306b\u306f\u30011\u65e5\u306eDNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u7a81\u713656\u500d\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u3053\u306e\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u3067\u306f\u3001C2\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u904b\u3076\u305f\u3081\u3001imgdsg4f35.permalinking[.]com <\/span>\u3084 php78mp9v.opposedarrangement[.]net <\/span>\u306a\u3069\u3001\u8907\u6570\u306eDGA\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u5168\u4f53\u306e\u50be\u5411\u3068\u3057\u3066\u306f\u3001DGA\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u91cf\u306f\u5168\u4f53\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u63a8\u79fb\u306b\u3042\u308f\u305b\u3066\u5897\u52a0\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u305f\u3060\u3057\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u671f\u9593\u4e2d\u3001DGA\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u5272\u5408\u306f\u5927\u5e45\u306b\u5897\u52a0\u3057\u307e\u3057\u305f\u30027\u670818\u65e5\u4ee5\u524d\u306eDGA\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u6bd4\u7387\u306f23.22\uff05\u3060\u3063\u305f\u306e\u306b\u5bfe\u3057\u3001\u6d3b\u6027\u5316\u5f8c\u306f42.04\uff05\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/a>\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0<\/h3>\n![\"\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306e\u30db\u30b9\u30c8\u540d\u306e1\u3064\u3067\u3042\u308bjcxivnmqfqoiopdlvejvgucpmrfgmhwdlrkvzqyb.ui1io[.]cn\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3001URL\u306b\u7279\u5b9a\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u3001\u8a2a\u554f\u8005\u3092\u5225\u306e\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0DGA\u30c9\u30e1\u30a4\u30f3\u3067\u3042\u308bgjahqfcyr[.]cn\u306b\u8ee2\u9001\u3057\u307e\u3059\u3002\u305d\u308c\u4ee5\u5916\u306e\u5834\u5408\u306f\u3001\u6b63\u898f\u306e\u9280\u884cWeb\u30b5\u30a4\u30c8\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3055\u308c\u307e\u3059\u3002\"]()
\u56f36 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<\/span>\u306e\u30b9\u30af\u30ea\u30d7\u30c8(\u56f36)\u306f\u3001URL\u306b\u7279\u5b9a\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u306b\u8a2a\u554f\u8005\u3092\u5225\u306e\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0DGA\u30c9\u30e1\u30a4\u30f3\u3067\u3042\u308b gjahqfcyr[.]cn 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\u56f37 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\u56f31\u306b\u793a\u3059\u3088\u3046\u306b\u3001\u79c1\u305f\u3061\u306e\u691c\u51fa\u5668\u306f\u30012021\u5e749\u6708\u306b\u65e5\u6b21\u3067\u7d0426,000\u4ef6\u306e\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u3092\u6355\u6349\u3057\u307e\u3057\u305f\u3002\u56f32\u306f\u3001\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u304c\u30d0\u30fc\u30b9\u30c8\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u53d7\u4fe1\u3057\u305f\u65e5\u306e\u524d\u5f8c\u306e\u5e73\u5747DNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30d7\u30ed\u30c3\u30c8\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u3053\u306e\u50be\u5411\u30c7\u30fc\u30bf\u306f\u3001\u6d3b\u6027\u5316\u3057\u305f\u65e5\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u57fa\u3065\u3044\u3066\u6b63\u898f\u5316\u3055\u308c\u3066\u3044\u307e\u3059(\u3064\u307e\u308a0\u65e5\u76ee\u306e\u6b63\u898f\u5316\u3055\u308c\u305fDNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f1\u3068\u306a\u308a\u307e\u3059)\u3002\u6d3b\u6027\u5316\u3057\u305f\u65e5\u306b\u306f\u3001\u3053\u308c\u3089\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u6d3b\u52d5\u91cf\u306f\u3001\u5e73\u5747\u306711.3\u500d\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u5f8c\u30821\u65e5\u306e\u5e73\u5747\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u5897\u3048\u7d9a\u3051\u30016\u500d\u4ee5\u4e0a\u306b\u9054\u3057\u3066\u3044\u307e\u3059\u3002\u5f0a\u793eDNS\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u3054\u5229\u7528\u306e\u304a\u5ba2\u69d8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u3053\u308c\u3089\u30c9\u30e1\u30a4\u30f3\u3078\u306eDNS\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u3001\u6d3b\u6027\u5316\u65e5\u304b\u3089\u6bce\u65e5\u7d04130\u4e07\u4ef6\u89b3\u6e2c\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n \u3053\u308c\u3089\u306e\u6226\u7565\u7684\u306b\u719f\u6210\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u3082\u305f\u3089\u3059\u8105\u5a01\u3092\u8a55\u4fa1\u3059\u308b\u305f\u3081\u3001\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306eURL Filtering<\/a>\u304b\u3089\u3053\u308c\u3089\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u3069\u306e\u3088\u3046\u306b\u5206\u985e\u3055\u308c\u3066\u3044\u308b\u304b\u3068\u3044\u3046\u60c5\u5831\u3092\u53d6\u5f97\u3057\u3001\u5408\u308f\u305b\u3066VirusTotal\u306e\u30b9\u30b3\u30a2\u3092\u53d6\u5f97\u3057\u307e\u3057\u305f\u3002\u305d\u3057\u3066\u3053\u308c\u3089\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u300cmalicious(\u60aa\u610f\u306e\u3042\u308b)\u300d\u3001\u300csuspicious(\u7591\u308f\u3057\u3044)\u300d\u3001\u300cnot safe for work (\u8077\u5834\u3067\u306e\u95b2\u89a7\u306b\u9069\u3055\u306a\u3044)\u300d\u3001\u300c\u305d\u306e\u4ed6\u300d\u306e4\u3064\u306e\u30b0\u30eb\u30fc\u30d7\u306b\u5206\u3051\u307e\u3057\u305f\u3002\u300cmalicious(\u60aa\u610f\u306e\u3042\u308b)\u300d\u30b0\u30eb\u30fc\u30d7\u306b\u306f\u3001malware(\u30de\u30eb\u30a6\u30a7\u30a2)\u3001command and control(\u30b3\u30de\u30f3\u30c9&\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb)\u3001grayware(\u30b0\u30ec\u30a4\u30a6\u30a7\u30a2)\u3001phishing(\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0)\u3001VirusTotal\u306e\u3044\u305a\u308c\u304b\u306e\u30d9\u30f3\u30c0\u306b\u3088\u3063\u3066\u691c\u51fa\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u300csuspicious(\u7591\u308f\u3057\u3044)\u300d\u30b0\u30eb\u30fc\u30d7\u306b\u306f\u3001parked(\u30d1\u30fc\u30ad\u30f3\u30b0\u30c9\u30e1\u30a4\u30f3)\u3001suspicious(\u7591\u308f\u3057\u3044)\u3001insufficient content (\u30b3\u30f3\u30c6\u30f3\u30c4\u4e0d\u8db3)\u3001high risk(\u9ad8\u30ea\u30b9\u30af)\u306b\u5206\u985e\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u304c\u542b\u307e\u308c\u307e\u3059\u3002nudity(\u30cc\u30fc\u30c9)\u3001adult(\u30a2\u30c0\u30eb\u30c8)\u3001gambling(\u30ae\u30e3\u30f3\u30d6\u30eb)\u306a\u3069\u306e\u30c6\u30fc\u30de\u306f\u300cnot safe for work(\u8077\u5834\u3067\u306e\u95b2\u89a7\u306b\u9069\u3055\u306a\u3044)\u300d\u306b\u542b\u3081\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b0\u30eb\u30fc\u30d7\u306b\u5f53\u3066\u306f\u307e\u3089\u306a\u3044\u3082\u306e\u306f\u3001\u300c\u305d\u306e\u4ed6\u300d\u3068\u30bf\u30b0\u4ed8\u3051\u3055\u308c\u307e\u3059\u3002 3.8%\u306e\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u304c\u60aa\u610f\u306e\u3042\u308b\u632f\u308b\u821e\u3044\u3092\u898b\u305b\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u306e\u5272\u5408\u306f\u3001NRD\u306e1.27\uff05\u3068\u6bd4\u3079\u30663\u500d\u4ee5\u4e0a\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u308c\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306e22.27%\u306f\u3001\u300c\u60aa\u610f\u306e\u3042\u308b\u300d\u3001\u300c\u7591\u308f\u3057\u3044\u300d\u3001\u307e\u305f\u306f\u300c\u8077\u5834\u3067\u306e\u95b2\u89a7\u306b\u9069\u3055\u306a\u3044\u300d\u30c9\u30e1\u30a4\u30f3\u3067\u3057\u305f\u3002\u3061\u306a\u307f\u306b\u3001Alexa\u306e\u30c8\u30c3\u30d71,000\u30c9\u30e1\u30a4\u30f3\u306e\u3046\u3061\u3001\u3053\u308c\u3089\u306b\u8a72\u5f53\u3059\u308b\u306e\u306f\u308f\u305a\u304b0.07%\u3067\u3059\u3002<\/p>\n \u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u3092\u7279\u5b9a\u3057\u305f\u5f8c\u3001DNS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306b\u57fa\u3065\u3044\u3066\u3001\u9032\u884c\u4e2d\u306e\u653b\u6483\u3092\u767a\u898b\u3057\u307e\u3059\u3002SolarWinds\u306e\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u653b\u6483\u306eDNS\u306e\u7279\u5fb4\u3092\u53c2\u8003\u306b\u3001\u540c\u69d8\u306eAPT\u653b\u6483\u3092\u6355\u6349\u3059\u308b\u305f\u3081\u306e\u691c\u77e5\u5668\u3092\u69cb\u7bc9\u3057\u307e\u3057\u305f\u3002<\/p>\n SolarWinds\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u3067\u306f\u3001\u4f11\u7720\u4e2d\u306eSUNBURST\u30c8\u30ed\u30a4\u306e\u6728\u99ac\u304cC2\u30c9\u30e1\u30a4\u30f3avsvmcloud[.]com<\/span>\u306b\u5b9a\u671f\u7684\u306b\u30b3\u30f3\u30bf\u30af\u30c8\u3057\u3066\u30b9\u30c6\u30fc\u30bf\u30b9\u5831\u544a\u3084\u30b3\u30de\u30f3\u30c9\u53d7\u4fe1\u3092\u884c\u3063\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u306e\u30cf\u30fc\u30c8\u30d3\u30fc\u30c8\u901a\u4fe1\u306f\u3001\u56fa\u5b9a\u306e\u30db\u30b9\u30c8\u30cd\u30fc\u30e0\u306b\u3088\u3063\u3066\u884c\u308f\u308c\u3066\u304a\u308a\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u91cf\u306f\u9650\u3089\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u3067\u3059\u304c\u3053\u306eC2\u30c9\u30e1\u30a4\u30f3\u304c\u4f11\u7720\u72b6\u614b\u304b\u3089\u899a\u9192\u3059\u308b\u3068\u3001\u30d0\u30fc\u30b9\u30c8DNS\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u5927\u534a\u306f\u65b0\u3057\u3044\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306b\u5bfe\u3059\u308b\u3082\u306e\u3067\u3057\u305f\u3002\u3053\u306e\u30c8\u30ed\u30a4\u306e\u6728\u99ac\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u751f\u6210\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0(DGA)\u3092\u7528\u3044\u3066\u3053\u308c\u3089\u306e\u30db\u30b9\u30c8\u540d\u3092\u52d5\u7684\u306b\u69cb\u7bc9\u3059\u308b\u3053\u3068\u3067\u30c7\u30fc\u30bf\u3092\u6d41\u51fa\u3055\u305b\u3066\u3044\u307e\u3057\u305f\u3002\u5177\u4f53\u7684\u306b\u306f DGAstring.appsync-api.region.avsvmcloud[.]com <\/span>\u3068\u3044\u3046\u5f62\u5f0f\u3067\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u304c\u751f\u6210\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u306e\u300cDGAstring\u300d\u306f\u3001\u611f\u67d3\u7d44\u7e54\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u88fd\u54c1\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u542b\u3080\u3001\u88ab\u5bb3\u8005\u306e\u8eab\u5143\u3092\u6697\u53f7\u5316\u3057\u305f\u6587\u5b57\u5217\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30db\u30b9\u30c8\u540d\u306b\u5bfe\u3059\u308b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u4fe1\u3057\u305f\u653b\u6483\u8005\u306eDNS\u30ea\u30be\u30eb\u30d0\u306f\u3001\u6d41\u51fa\u3057\u305f\u60c5\u5831\u306b\u57fa\u3065\u3044\u3066\u3079\u3064\u306eC2\u30b5\u30fc\u30d0\u30fc\u3092\u6307\u3059CNAME\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u8fd4\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u3088\u3046\u3059\u308b\u306b\u3053\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u306fDGA\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u30c7\u30fc\u30bf\u6d41\u51fa\u3068\u653b\u6483\u30a4\u30f3\u30d5\u30e9\u306e\u30d7\u30ed\u30ad\u30b7\u30ec\u30a4\u30e4\u306e\u8ffd\u52a0\u306b\u5229\u7528\u3057\u3066\u3044\u305f\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n SolarWinds\u3068\u540c\u69d8\u306eC2\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u6355\u6349\u3059\u308b\u305f\u3081\u3001\u5f0a\u793e\u306eDGA\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u691c\u51fa\u5668\u306f\u6226\u7565\u7684\u719f\u6210\u30c9\u30e1\u30a4\u30f3\u306e\u3059\u3079\u3066\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u30b9\u30ad\u30e3\u30f3\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001DGA\u306b\u3088\u308b\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3078\u306eDNS\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u6025\u5897\u3057\u3066\u3044\u308b\u3082\u306e\u3092\u3001\u6f5c\u5728\u7684\u306aAPT\u306eC2\u30c9\u30e1\u30a4\u30f3\u3068\u3057\u3066\u30e9\u30d9\u30eb\u4ed8\u3051\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001WHOIS\u30ec\u30b3\u30fc\u30c9\u3084\u826f\u6027\u30db\u30b9\u30c8\u540d\u30d1\u30bf\u30fc\u30f3\u306a\u3069\u306e\u8ffd\u52a0\u60c5\u5831\u306b\u57fa\u3065\u304d\u3001\u6b63\u898f\u30b5\u30fc\u30d3\u30b9\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306e\u30d5\u30a3\u30eb\u30bf\u3092\u3044\u304f\u3064\u304b\u5b9f\u88c5\u3057\u307e\u3059\u3002<\/p>\n 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avsvmcloud[.]com<\/span> \u6982\u8981 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<\/a>\u7d50\u8ad6<\/h2>\n
<\/a>IoC<\/h2>\n
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