{"id":118466,"date":"2021-04-13T00:42:09","date_gmt":"2021-04-13T07:42:09","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=118466"},"modified":"2021-04-13T00:42:09","modified_gmt":"2021-04-13T07:42:09","slug":"emotet-command-and-control","status":"publish","type":"post","link":"https:\/\/origin-unit42.paloaltonetworks.com\/ja\/emotet-command-and-control\/","title":{"rendered":"Emotet\u306e\u30b3\u30de\u30f3\u30c9&#038;\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3"},"content":{"rendered":"<h2>\u6982\u8981<\/h2>\n<p>2021\u5e743\u67088\u65e5\u3001Unit 42\u306f\u30d6\u30ed\u30b0\u300c<a href=\"https:\/\/unit42.paloaltonetworks.jp\/attack-chain-overview-emotet-in-december-2020-and-january-2021\/\">\u653b\u6483\u30c1\u30a7\u30fc\u30f3\u306e\u6982\u8981: 2020\u5e7412\u6708\u304a\u3088\u30732021\u5e741\u6708\u306eEmotet<\/a>\u300d\u3092\u516c\u958b\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u5206\u6790\u304b\u3089\u3001\u66f4\u65b0\u3055\u308c\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\u306eEmotet\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30b3\u30de\u30f3\u30c9&amp;\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\uff08C2\uff09\u30b5\u30fc\u30d0\u30fc\u3068\u901a\u4fe1\u3057\u3066\u30c7\u30fc\u30bf\u6f0f\u51fa\u3084\u3055\u3089\u306a\u308b\u653b\u6483\u3092\u884c\u3046\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u79c1\u305f\u3061\u306f\u3001\u653b\u6483\u8005\u304c\u30e6\u30fc\u30b6\u30fc\u306e\u6a5f\u5bc6\u60c5\u5831\u7a83\u53d6\u3084\u65b0\u305f\u306a\u30da\u30a4\u30ed\u30fc\u30c9\u306e\u30c9\u30ed\u30c3\u30d7\u306e\u305f\u3081\u306b\u3001\u9ad8\u5ea6\u306a\u56de\u907f\u6280\u8853\u3068\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u5229\u7528\u3057\u3066C2\u30b5\u30fc\u30d0\u30fc\u3068\u901a\u4fe1\u3057\u3001\u88ab\u5bb3\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u74b0\u5883\u3084\u30d7\u30ed\u30bb\u30b9\u3092\u8abf\u67fb\u3057\u3066\u3044\u308b\u69d8\u5b50\u3092\u89b3\u6e2c\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u672c\u7a3f\u3067\u306f\u3001\u30e1\u30a4\u30f3\u30ed\u30b8\u30c3\u30af\u306e\u958b\u59cb\u90e8\u5206\u304b\u3089\u306f\u3058\u3081\u3001\u6697\u53f7\u5316\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u30ab\u30d0\u30fc\u3057\u3001C2\u30c7\u30fc\u30bf\u304cHTTP\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4ecb\u3057\u3066C2\u30b5\u30fc\u30d0\u30fc\u306b\u6f0f\u51fa\u3055\u308c\u308b\u307e\u3067\u306e\u904e\u7a0b\u3092\u9806\u3092\u8ffd\u3063\u3066\u6280\u8853\u7684\u306b\u5206\u6790\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/next-generation-firewall\">\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb<\/a>\u3092\u3054\u5229\u7528\u306e\u304a\u5ba2\u69d8\u306f\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/products\/secure-the-network\/subscriptions\/threat-prevention\">\u8105\u5a01\u9632\u5fa1<\/a>\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/products\/secure-the-network\/wildfire\">WildFire<\/a>\u306a\u3069\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u3092\u901a\u3058\u3066Emotet\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<a href=\"https:\/\/www.paloaltonetworks.jp\/cortex\/cortex-xdr\">Cortex XDR<\/a>\u3092\u304a\u4f7f\u3044\u306e\u304a\u5ba2\u69d8\u3082\u540c\u8105\u5a01\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u6280\u8853\u7684\u5206\u6790<\/h2>\n<p>\u3053\u306e\u5206\u6790\u3067\u306f\u3001\u901a\u5e38\u306eIDA Pro\u306e\u95a2\u6570\u306e\u66f8\u5f0f\uff08<span style=\"font-family: 'courier new', courier, monospace;\">sub_*<\/span>\uff09\u3092\u7f6e\u304d\u63db\u3048\u308b\u30ab\u30b9\u30bf\u30e0\u95a2\u6570\u540d\uff08\u305f\u3068\u3048\u3070<span style=\"font-family: 'courier new', courier, monospace;\">collect_process_data<\/span>\uff09\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u30a4\u30e1\u30fc\u30b8\u306e\u30d9\u30fc\u30b9\u30a2\u30c9\u30ec\u30b9\u304c<span style=\"font-family: 'courier new', courier, monospace;\">0x2E1000<\/span>\u3067\u3042\u308b32\u30d3\u30c3\u30c8\uff08x86\uff09DLL\u5b9f\u884c\u53ef\u80fd\u30d5\u30a1\u30a4\u30eb\u3092\u60f3\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u53c2\u7167\u3057\u3084\u3059\u3044\u3088\u3046\u306b\u95a2\u6570\u30aa\u30d5\u30bb\u30c3\u30c8\u3001\u540d\u524d\u3001\u30ab\u30b9\u30bf\u30e0\u540d\u3092\u6b21\u306e\u56f3\u306b\u8a18\u8f09\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n<p><strong>\u6ce8: <\/strong>\u4f7f\u7528\u3055\u308c\u305f\u30b5\u30d6\u30eb\u30fc\u30c1\u30f3\u306f\u3053\u3053\u306b\u63d0\u793a\u3057\u305f\u95a2\u6570\u30aa\u30d5\u30bb\u30c3\u30c8\u304b\u3089\u7c21\u5358\u306b\u898b\u3064\u304b\u308b\u306e\u3067\u3053\u306e\u56f3\u306b\u306f\u8a18\u8f09\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n<figure id=\"attachment_118305\" aria-describedby=\"caption-attachment-118305\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118306 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-31.png\" alt=\"\u56f31 IDA\u95a2\u6570\u306e\u53c2\u7167\u60c5\u5831\" width=\"900\" height=\"500\" \/><figcaption id=\"caption-attachment-118305\" class=\"wp-caption-text\">\u56f31 IDA\u95a2\u6570\u306e\u53c2\u7167\u60c5\u5831<\/figcaption><\/figure>\n<p>\u4eca\u56de\u306e\u5206\u6790\u306f\u3001\u30a8\u30f3\u30c8\u30ea\u30dd\u30a4\u30f3\u30c8\u3068\u306a\u308b\u95a2\u6570<span style=\"font-family: 'courier new', courier, monospace;\">c2_logic_ep<\/span>\uff08<span style=\"font-family: 'courier new', courier, monospace;\">sub_2E2C63<\/span>\uff09\u304b\u3089\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h4>\u6697\u53f7\u5316API\u95a2\u6570<\/h4>\n<p>\u3053\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u306f\u30012\u3064\u306e\u4e3b\u8981\u95a2\u6570<span style=\"font-family: 'courier new', courier, monospace;\">encryption_functions_one<\/span>\u3068<span style=\"font-family: 'courier new', courier, monospace;\">encryption_functions_two<\/span>\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3069\u3061\u3089\u306e\u95a2\u6570\u3082Microsoft\u306eBase Cryptography\uff08CryptoAPI\uff09\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u5b9f\u884c\u4e2d\u306b\u3053\u308c\u3089\u306e\u6697\u53f7\u5316API\u95a2\u6570\u304c\u4f7f\u7528\u3059\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u3068\u5b9f\u884c\u3059\u308b\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u8a18\u8f09\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><em>CryptAcquireContextW<\/em>: <strong>PROV_DH_SCHANNEL<\/strong>\u3092\u30d7\u30ed\u30d0\u30a4\u30c0\u30bf\u30a4\u30d7\uff08<strong>0x18<\/strong>\uff09\u3068\u3057\u3066\u4f7f\u3044\u307e\u3059\u3002<strong>CRYPT_VERIFYCONTEXT<\/strong>\u30d5\u30e9\u30b0\u3068<strong>CRYPT_SILENT<\/strong>\u30d5\u30e9\u30b0\u3068\u306e\u30d3\u30c3\u30c8\u5358\u4f4dOR\u6f14\u7b97\uff08<strong>0xf0000040<\/strong>\uff09\u3092\u884c\u3063\u3066\u30e6\u30fc\u30b6\u30fc\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\uff08UI\uff09\u304c\u30e6\u30fc\u30b6\u30fc\u306b\u8868\u793a\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/li>\n<li><em>CryptDecodeObjectEx<\/em>: \u30e1\u30c3\u30bb\u30fc\u30b8\u30a8\u30f3\u30b3\u30fc\u30c9\u30bf\u30a4\u30d7<strong>X509_ASN_ENCODING<\/strong>\u3068<strong>PKCS_7_ASN_ENCODING<\/strong>\u3068\u3092\u30d3\u30c3\u30c8\u5358\u4f4dOR\u6f14\u7b97\uff08<strong>0x10001<\/strong>\uff09\u3057\u305f\u3082\u306e\u3001<strong>X509_BASIC_CONSTRAINTS<\/strong>\uff08<strong>0x13<\/strong>\uff09\u306e\u69cb\u9020\u4f53\u30bf\u30a4\u30d7\u3001\u30c7\u30b3\u30fc\u30c9\u3055\u308c\u308b\u5408\u8a08<strong>0x6a<\/strong>\u5206\u306e\u30d0\u30a4\u30c8\u3092\u4f7f\u3044\u307e\u3059\u3002<\/li>\n<li><em>CryptImportKey<\/em>: <strong>CUR_BLOB_VERSION<\/strong>\uff08<strong>0x2<\/strong>\uff09 \u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u30b5\u30a4\u30ba<strong>0x74<\/strong>\u30d0\u30a4\u30c8\u3001\u30bf\u30a4\u30d7<strong>PUBLICKEYBLOB<\/strong>\uff08<strong>0x6<\/strong>\uff09 \u306e\u30ad\u30fc\u30d6\u30ed\u30d6\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002<\/li>\n<li><em>CryptGenKey<\/em>: \u5024\u306b<strong>CALG_AES_128<\/strong>\uff08<strong>0x0000660e<\/strong>\uff09\u3092\u8a2d\u5b9a\u3057\u305f<strong>ALG_ID<\/strong>\u3092\u4f7f\u7528\u3057\u3066128\u30d3\u30c3\u30c8\u306eAES\u30bb\u30c3\u30b7\u30e7\u30f3\u30ad\u30fc\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/li>\n<li><em>CryptCreateHash<\/em>: \u5024\u306b<strong>CALG_SHA<\/strong>\uff08<strong>0x00008004<\/strong>\uff09\u3092\u8a2d\u5b9a\u3057\u305f<strong>ALG_ID<\/strong>\u3092\u4f7f\u7528\u3057\u3066\u305d\u306e\u540d\u306e\u901a\u308aSHA\u30cf\u30c3\u30b7\u30e5\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<li><em>CryptDuplicateHash<\/em>: \u8907\u88fd\u3055\u308c\u308b\u30cf\u30c3\u30b7\u30e5\u3078\u306e\u30cf\u30f3\u30c9\u30eb\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002<\/li>\n<li><em>CryptEncrypt<\/em>: \u3053\u306e\u95a2\u6570\u306f<em>CryptGenKey<\/em>\u95a2\u6570\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u305f\u6697\u53f7\u5316\u30ad\u30fc\u3078\u306e\u30cf\u30f3\u30c9\u30eb\u3068\u3001<em>CryptCreateHash<\/em>\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u305f\u30cf\u30c3\u30b7\u30e5\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3078\u306e\u30cf\u30f3\u30c9\u30eb\u3068\u3044\u30462\u3064\u306e\u4e3b\u8981\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002\u3053\u306e\u5024\u304c\u3001\u6697\u53f7\u5316\u5f8c\u306e<em>CryptEncrypt<\/em>\u95a2\u6570\u547c\u3073\u51fa\u3057\u3068\u3001\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u3066\u306eC2\u30c7\u30fc\u30bf\u3078\u306e\u30dd\u30a4\u30f3\u30bf\u6e21\u3057\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/li>\n<li><em>CryptExportKey<\/em>: <strong>SIMPLEBLOB<\/strong>\uff08<strong>0x1<\/strong>\uff09\u30bf\u30a4\u30d7\u3068<strong>CRYPT_OAEP<\/strong>\uff08<strong>0x00000040<\/strong>\uff09\u3092\u30d5\u30e9\u30b0\u3068\u3057\u3066\u4f7f\u7528\u3057\u307e\u3059\u3002\u30ad\u30fc\u30d6\u30ed\u30d6\u304c\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3055\u308c\u308b\u30d0\u30c3\u30d5\u30a1\u3078\u306e\u30dd\u30a4\u30f3\u30bf\u306f\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u306eC2\u30c7\u30fc\u30bf\u306e\u4e00\u90e8\u3067\u3059\u3002<\/li>\n<li><em>CryptGetHashParam<\/em>: <em>CryptExportKey<\/em>\u95a2\u6570\u540c\u69d8\u3001\u5b9b\u5148\u30dd\u30a4\u30f3\u30bf\u306f\u30de\u30eb\u30a6\u30a7\u30a2\u306eC2\u30c7\u30fc\u30bf\u306e\u4e00\u90e8\u3067\u3059\u3002<\/li>\n<li><em>CryptDestroyHash<\/em>: \u305d\u306e\u540d\u304c\u793a\u3059\u901a\u308a\u6307\u5b9a\u3055\u308c\u305f\u30cf\u30c3\u30b7\u30e5\u3092\u7834\u68c4\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h4>\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc ID\u306e\u751f\u6210\u3068\u9577\u3055\u306e\u30c1\u30a7\u30c3\u30af<\/h4>\n<p><span style=\"font-family: 'courier new', courier, monospace;\">generate_machine_id<\/span>\u95a2\u6570\u306f\u3001\u305d\u306e\u540d\u304c\u793a\u3059\u901a\u308a\u3001\u611f\u67d3\u7aef\u672b\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc ID\u751f\u6210\u3092\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc ID\u306e\u751f\u6210\u306b\u306f<span style=\"font-family: 'courier new', courier, monospace;\">_snprintf<\/span>\u95a2\u6570\u306e\u547c\u3073\u51fa\u3057\u304c\u4f7f\u308f\u308c\u307e\u3059\u3002\u3053\u306e\u95a2\u6570\u306f\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u6587\u5b57\u5217<span style=\"font-family: 'courier new', courier, monospace;\">\uff05s_\uff0508X<\/span>\u3092\u4f7f\u3063\u3066<em>GetComputerNameA<\/em>\u3068<em>GetVolumeInformationW<\/em>\u304c\u751f\u6210\u3057\u305f\u5024\u3092\u9023\u7d50\u3057\u307e\u3059\u3002\u4eca\u56de\u306e\u5206\u6790\u3067\u4f7f\u7528\u3057\u305f\u691c\u8a3c\u30de\u30b7\u30f3\u306e\u7279\u5b9a\u30b1\u30fc\u30b9\u3067\u306f\u3001\u3053\u306e\u7d50\u679c\u306e\u5024\u306f<strong>ANANDAXPC_58F2C41B<\/strong>\u3068\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<figure id=\"attachment_118307\" aria-describedby=\"caption-attachment-118307\" style=\"width: 823px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118308 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-32.png\" alt=\"\u56f32 \u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc ID\uff08machine-ID\u5024\uff09\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057\" width=\"823\" height=\"178\" \/><figcaption id=\"caption-attachment-118307\" class=\"wp-caption-text\">\u56f32 \u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc ID\uff08machine-ID\u5024\uff09\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n<p>\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc ID\u304c\u751f\u6210\u3055\u308c\u308b\u3068\u9577\u3055\u30c1\u30a7\u30c3\u30af\u691c\u8a3c\u3082\u751f\u6210\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u300clstrlen\u300d\u95a2\u6570\u306e\u30e9\u30c3\u30d1\u30fc\u3067\u3042\u308b<span style=\"font-family: 'courier new', courier, monospace;\">gen_machine_id_length<\/span>\u306e\u547c\u3073\u51fa\u3057\u3068\u3001\u524d\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057\u304b\u3089\u306e\u623b\u308a\u5024\u3092\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3068\u3057\u3066\u6e21\u3059\u3053\u3068\u3067\u5b9f\u73fe\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u79c1\u305f\u3061\u306e\u691c\u8a3c\u30de\u30b7\u30f3\u306e\u30b1\u30fc\u30b9\u3067\u306f\u3001\u3053\u306e\u7d50\u679c\u306e\u9577\u3055\u306f\u300c<strong>12<\/strong>\u300d\u3068\u306a\u308a\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u5024\u306fC2\u30c7\u30fc\u30bf\u306e\u4e00\u90e8\u3068\u3057\u3066\u4f7f\u7528\u3055\u308c\u308b\u3053\u3068\u304b\u3089\u7279\u5b9a\u30b9\u30bf\u30c3\u30af\u5909\u6570\u5185\u306b\u5b58\u5728\u3057\u307e\u3059\u3002\u7d9a\u3044\u3066<span style=\"font-family: 'courier new', courier, monospace;\">write_GoR<\/span>\u95a2\u6570\u306b\u5bfe\u3059\u308b\u65b0\u305f\u306a\u95a2\u6570\u547c\u3073\u51fa\u3057\u304c\u884c\u308f\u308c\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u79c1\u305f\u3061\u306e\u5206\u6790\u3068\u623b\u308a\u5024\uff08<strong>0x16F87C<\/strong>\uff09\u306e\u4f7f\u308f\u308c\u65b9\u304b\u3089\u306f\u3001\u3053\u308c\u304c\u4f55\u3092\u76ee\u7684\u3068\u3059\u308b\u3082\u306e\u306a\u306e\u304b\u306f\u308f\u304b\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002C2\u30c7\u30fc\u30bf\u306e\u6700\u5f8c\u306b\u3042\u308b\u3053\u3068\u304b\u3089\u533a\u5207\u308a\u6587\u5b57\u3067\u306f\u306a\u3044\u304b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118309\" aria-describedby=\"caption-attachment-118309\" style=\"width: 817px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118310 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-33.png\" alt=\"\u56f33 C2\u306e\u30c7\u30fc\u30bf\u533a\u5207\u308a\u6587\u5b57\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057\" width=\"817\" height=\"122\" \/><figcaption id=\"caption-attachment-118309\" class=\"wp-caption-text\">\u56f33 C2\u306e\u30c7\u30fc\u30bf\u533a\u5207\u308a\u6587\u5b57\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n<h4>\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u306e\u30c7\u30fc\u30bf\u53ce\u96c6<\/h4>\n<p>\u6f0f\u51fa\u3055\u308c\u308b\u30c7\u30fc\u30bf\u306b\u306f<strong>\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u60c5\u5831<\/strong>\u3082\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u6f0f\u51fa\u306b\u306f<span style=\"font-family: 'courier new', courier, monospace;\">collect_os_data<\/span>\u95a2\u6570\u547c\u3073\u51fa\u3057\u304c\u4f7f\u308f\u308c\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<figure id=\"attachment_118311\" aria-describedby=\"caption-attachment-118311\" style=\"width: 819px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118312 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-34.png\" alt=\"\u56f34 \u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u60c5\u5831\u306e\u53ce\u96c6\u306e\u305f\u3081\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057\" width=\"819\" height=\"110\" \/><figcaption id=\"caption-attachment-118311\" class=\"wp-caption-text\">\u56f34 \u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u60c5\u5831\u306e\u53ce\u96c6\u306e\u305f\u3081\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n<p>\u3053\u306e\u95a2\u6570\u306f<em>RtlGetVersion<\/em>\u3092\u547c\u3073\u51fa\u3057\u3001<em>OSVERSIONINFOW<\/em>\u69cb\u9020\u4f53\u306b\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002<em>GetNativeSystemInfo<\/em>\u3082<em>SYSTEM_INFO<\/em>\u69cb\u9020\u4f53\u5185\u306b\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3057\u3066\u540c\u3058\u3053\u3068\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118313\" aria-describedby=\"caption-attachment-118313\" style=\"width: 820px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118314 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-35.png\" alt=\"\u56f35 API\u547c\u3073\u51fa\u3057\u306b\u3088\u3063\u3066\u5024\u3092\u8a2d\u5b9a\u3055\u308c\u305fOSVERSIONINFOW\u69cb\u9020\u4f53\u3068SYSTEM_INFO\u69cb\u9020\u4f53\" width=\"820\" height=\"408\" \/><figcaption id=\"caption-attachment-118313\" class=\"wp-caption-text\">\u56f35 API\u547c\u3073\u51fa\u3057\u306b\u3088\u3063\u3066\u5024\u3092\u8a2d\u5b9a\u3055\u308c\u305fOSVERSIONINFOW\u69cb\u9020\u4f53\u3068SYSTEM_INFO\u69cb\u9020\u4f53<\/figcaption><\/figure>\n<p>\u3053\u308c\u3089\u30c7\u30fc\u30bf\u69cb\u9020\u4f53\u3078\u306e\u5165\u529b\u304c\u6e08\u3080\u3068\u30010x2EC3DB\uff08<em>\u623b\u308a\u5024<\/em>\uff09\u30010x2EC440\uff08<em>MajorVersion<\/em>\uff09\u30010x2EC3DB\u30010x2EC3D0\uff08<em>MinorVersion<\/em>\uff09\u30010x2EC45A\uff08<em>Architecture|PROCESSOR_ARCHITECTURE_INTEL<\/em>\uff09\u306e\u5404\u30aa\u30d5\u30bb\u30c3\u30c8\u4f4d\u7f6e\u306e\u547d\u4ee4\u306b\u3088\u308a\u7279\u5b9a\u306e\u30c7\u30fc\u30bf\u304c\u30d5\u30a7\u30c3\u30c1\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u623b\u308a\u5024\u306f\u3001<em>MajorVersion<\/em>\u3001<em>MinorVersion<\/em>\u3001<em>Architecture<\/em>\u3001\u305d\u3057\u3066NT_PRODUCT_TYPE\u5217\u6319\u30c7\u30fc\u30bf\u578b\u306e\u30b7\u30f3\u30dc\u30ea\u30c3\u30af\u5b9a\u6570\uff08<em>NtProductWinNT<\/em>\uff09\u3067\u3042\u308b<em>RtlGetNtProductType<\/em>\u547c\u3073\u51fa\u3057\u306e\u623b\u308a\u5024\uff080x1\uff09\u3001\u3053\u308c\u3089\u56fa\u5b9a\u5024\u3068\u306e\u52a0\u7b97\u3068\u4e57\u7b97\u3067\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\u6b21\u306ePython\u30b3\u30fc\u30c9\u306f\u3001\u305d\u308c\u3089\u306e\u5024\u3092\u751f\u6210\u3059\u308b\u30ed\u30b8\u30c3\u30af\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_118315\" aria-describedby=\"caption-attachment-118315\" style=\"width: 810px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118316 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-36.png\" alt=\"\u56f36 OS\u30c7\u30fc\u30bf\u751f\u6210\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u30a8\u30df\u30e5\u30ec\u30fc\u30c8\u3059\u308bPython\u306e\u6982\u5ff5\u5b9f\u8a3c\uff08PoC\uff09\" width=\"810\" height=\"248\" \/><figcaption id=\"caption-attachment-118315\" class=\"wp-caption-text\">\u56f36 OS\u30c7\u30fc\u30bf\u751f\u6210\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u30a8\u30df\u30e5\u30ec\u30fc\u30c8\u3059\u308bPython\u306e\u6982\u5ff5\u5b9f\u8a3c\uff08PoC\uff09<\/figcaption><\/figure>\n<h4>\u30ea\u30e2\u30fc\u30c8\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u30b5\u30fc\u30d3\u30b9\u30bb\u30c3\u30b7\u30e7\u30f3\u60c5\u5831\u306e\u53ce\u96c6<\/h4>\n<p>\u73fe\u5728\u306e\u30d7\u30ed\u30bb\u30b9\u306e\u30d7\u30ed\u30bb\u30b9ID\u3092\u53d6\u5f97\u3059\u308b<em>GetCurrentProcessId<\/em>\u306e\u547c\u3073\u51fa\u3057\u3092\u542b\u3080\u3055\u3089\u306b\u591a\u304f\u306e\u547c\u3073\u51fa\u3057\u304c\u5b9f\u884c\u3055\u308c\u3001\u305d\u306e\u623b\u308a\u5024\u304c<em>ProcessIdToSessionId<\/em>\u95a2\u6570\u306b\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u3066\u6e21\u3055\u308c\u307e\u3059\u3002<a href=\"https:\/\/docs.microsoft.com\/en-us\/windows\/win32\/api\/processthreadsapi\/nf-processthreadsapi-processidtosessionid\">MSDN\u306e\u8aac\u660e<\/a>\u306b\u3088\u308b\u3068<em>ProcessIdToSessionId<\/em>\u95a2\u6570\u306f\u300c\u6307\u5b9a\u3057\u305f\u30d7\u30ed\u30bb\u30b9\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u305f\u30ea\u30e2\u30fc\u30c8\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u30b5\u30fc\u30d3\u30b9\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u53d6\u5f97\u3059\u308b\u300d\u3068\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u95a2\u6570\u306e\u623b\u308a\u5024\u306f\u3001\u73fe\u5728\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u30bf\u30fc\u30df\u30ca\u30eb\u30b5\u30fc\u30d3\u30b9\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118317\" aria-describedby=\"caption-attachment-118317\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118318 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-37.png\" alt=\"\u56f37 \u30bf\u30fc\u30df\u30ca\u30eb\u30b5\u30fc\u30d3\u30b9\u306e\u30bb\u30c3\u30b7\u30e7\u30f3ID\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057\" width=\"900\" height=\"114\" \/><figcaption id=\"caption-attachment-118317\" class=\"wp-caption-text\">\u56f37 \u30bf\u30fc\u30df\u30ca\u30eb\u30b5\u30fc\u30d3\u30b9\u306e\u30bb\u30c3\u30b7\u30e7\u30f3ID\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n<h4>\u30d7\u30ed\u30bb\u30b9\u30b9\u30ad\u30e3\u30f3\u3068C2\u30c7\u30fc\u30bf\u53ce\u96c6<\/h4>\n<p>\u3053\u306e\u95a2\u6570\u306f<em>CreateToolhelp32Snapshot<\/em>\u3001<em>Process32FirstW<\/em>\u3001<em>GetCurrentProcessId<\/em>\u3001<em>Process32NextW<\/em>\u306e\u5404\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059\u5f93\u6765\u578b\u306e\u65b9\u6cd5\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u3001\u30b7\u30b9\u30c6\u30e0\u4e0a\u3067\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30d7\u30ed\u30bb\u30b9\u3092\u53ce\u96c6\u3057\u307e\u3059\u3002\u3053\u306e\u95a2\u6570\u306b\u5165\u308b\u524d\u306b\u3001\u30aa\u30d5\u30bb\u30c3\u30c80x2E4715\u306b\u3042\u308b\u547d\u4ee4\u304c\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u306e\u30a2\u30c9\u30ec\u30b9\u3092EAX\u30ec\u30b8\u30b9\u30bf\u306b\u30ed\u30fc\u30c9\u3057\u3066\u30b9\u30bf\u30c3\u30af\u306b\u30d7\u30c3\u30b7\u30e5\u3057\u307e\u3059\u3002\u3053\u306e\u5909\u6570\u306b\u306f\u6700\u7d42\u7684\u306b\u30d7\u30ed\u30bb\u30b9\u30c7\u30fc\u30bf\u60c5\u5831\u3092\u53d7\u3051\u53d6\u308b\u3053\u3068\u306b\u306a\u308b<em>RtAllocateHeap<\/em>\u95a2\u6570\u306e\u547c\u3073\u51fa\u3057\u306b\u3088\u308a\u751f\u6210\u3057\u305f\u30dd\u30a4\u30f3\u30bf\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118319\" aria-describedby=\"caption-attachment-118319\" style=\"width: 819px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118320 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-38.png\" alt=\"\u56f38 \u30d7\u30ed\u30bb\u30b9\u30c7\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u3066\u5024\u3092\u751f\u6210\u30fb\u521d\u671f\u5316\u3059\u308b\u305f\u3081\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057\" width=\"819\" height=\"234\" \/><figcaption id=\"caption-attachment-118319\" class=\"wp-caption-text\">\u56f38 \u30d7\u30ed\u30bb\u30b9\u30c7\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u3066\u5024\u3092\u751f\u6210\u30fb\u521d\u671f\u5316\u3059\u308b\u305f\u3081\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n<p>\u3053\u306e\u95a2\u6570\u306f<span style=\"font-family: 'courier new', courier, monospace;\">copy_collected_data_parent<\/span>\u3068\u3044\u3046\u540d\u524d\u306e\u30b5\u30d6\u30eb\u30fc\u30c1\u30f3\u3082\u547c\u3073\u51fa\u3057\u307e\u3059\u3002\u5b9f\u884c\u4e2d\u3001\u3053\u306e\u95a2\u6570\u306f<em>RtlAllocateHeap<\/em>\u95a2\u6570\u547c\u3073\u51fa\u3057\u3068\u305d\u308c\u306b\u7d9a\u304f\u8907\u6570\u306e<span style=\"font-family: 'courier new', courier, monospace;\">memcpy<\/span>\u30e9\u30c3\u30d1\u30fc\u95a2\u6570\u547c\u3073\u51fa\u3057\u306b\u3088\u308a\u53ce\u96c6\u6e08\u307fC2\u30c7\u30fc\u30bf\u3092\u65b0\u3057\u304f\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u30bb\u30af\u30b7\u30e7\u30f3\u306b\u30b3\u30d4\u30fc\u3059\u308b\u3053\u3068\u3067\u3001\u65b0\u3057\u3044\u30e1\u30e2\u30ea\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118321\" aria-describedby=\"caption-attachment-118321\" style=\"width: 815px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118322 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-39.png\" alt=\"\u56f39 \u53ce\u96c6\u3057\u305fC2\u30c7\u30fc\u30bf\u3067\u5024\u3092\u521d\u671f\u5316\u3059\u308b\u95a2\u6570\u547c\u3073\u51fa\u3057\" width=\"815\" height=\"236\" \/><figcaption id=\"caption-attachment-118321\" class=\"wp-caption-text\">\u56f39 \u53ce\u96c6\u3057\u305fC2\u30c7\u30fc\u30bf\u3067\u5024\u3092\u521d\u671f\u5316\u3059\u308b\u95a2\u6570\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n<p>\u6b21\u306b\u547c\u3073\u51fa\u3059\u95a2\u6570\u304c<span style=\"font-family: 'courier new', courier, monospace;\">HTTP_LAUNCHER<\/span>\u3067\u3001\u3053\u308c\u306b\u306f\u4ed6\u306e\u30bf\u30b9\u30af\u306e\u4e2d\u3067\u3082\u7279\u306bWeb\u6a5f\u80fd\u3092\u63d0\u4f9b\u3059\u308b\u30b5\u30d6\u30eb\u30fc\u30c1\u30f3\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u6642\u70b9\u3067\u4e00\u9023\u306e\u5909\u6570\u306f\u305d\u308c\u307e\u3067\u306b\u5b9f\u884c\u3055\u308c\u305f\u95a2\u6570\u304b\u3089\u306e\u5bfe\u5fdc\u3059\u308b\u623b\u308a\u5024\u3067\u521d\u671f\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u6b21\u306eASCII\u30c0\u30f3\u30d7\u306f\u3001\u5909\u6570\u30a2\u30c9\u30ec\u30b9\u3001\u95a2\u9023\u30c7\u30fc\u30bf\u3001\u305d\u3057\u3066\u300c\u3069\u306e\u95a2\u6570\u306a\u3044\u3057\u547d\u4ee4\u30aa\u30d5\u30bb\u30c3\u30c8\u304c\u7279\u5b9a\u306e\u30c7\u30fc\u30bf\u3092\u63d0\u4f9b\u3057\u305f\u304b\u300d\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118323\" aria-describedby=\"caption-attachment-118323\" style=\"width: 900px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118324 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-40.png\" alt=\"\u56f310 \u53ce\u96c6\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3068\u30c7\u30fc\u30bf\u3092\u751f\u6210\u3057\u305f\u95a2\u6570\u3078\u306e\u53c2\u7167\u3092\u542b\u3080\u30b9\u30bf\u30c3\u30af\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\" width=\"900\" height=\"358\" \/><figcaption id=\"caption-attachment-118323\" class=\"wp-caption-text\">\u56f310 \u53ce\u96c6\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3068\u30c7\u30fc\u30bf\u3092\u751f\u6210\u3057\u305f\u95a2\u6570\u3078\u306e\u53c2\u7167\u3092\u542b\u3080\u30b9\u30bf\u30c3\u30af\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8<\/figcaption><\/figure>\n<p>\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u306f<span style=\"font-family: 'courier new', courier, monospace;\">write_collected_data<\/span>\u30b5\u30d6\u30eb\u30fc\u30c1\u30f3\u3092\u547c\u3073\u51fa\u3059<span style=\"font-family: 'courier new', courier, monospace;\">c2_data_write<\/span>\u95a2\u6570\u3067\u3001\u3053\u308c\u306f\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u3066\u6b21\u306e2\u3064\u306e\u5024\u3092\u6e21\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>C2\u30c7\u30fc\u30bf\uff080x2EAC3E\uff09\u3078\u306e\u30dd\u30a4\u30f3\u30bf<\/li>\n<li>\u30aa\u30d5\u30bb\u30c3\u30c80x2F989B\u306b\u3042\u308b<em>RtlAllocateHeap<\/em>\u95a2\u6570\u306e\u547c\u3073\u51fa\u3057\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u305f\u3001\u65b0\u3057\u3044\u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066\u306e\u623b\u308a\u5024\uff08\u30a2\u30c9\u30ec\u30b9\uff09<\/li>\n<\/ol>\n<p>\u3053\u306e\u65b0\u3057\u304f\u751f\u6210\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306f\u3042\u308b\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u901a\u904e\u3057\u307e\u3059\u3002\u3053\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u306f\u3001\u66f8\u304d\u8fbc\u307f\uff08\u30aa\u30d5\u30bb\u30c3\u30c80x2FA830\uff09\u306b\u52a0\u3048\u3001C2\u30c7\u30fc\u30bf\u306e\u7279\u5b9a\u306e\u30d0\u30a4\u30c8\uff08\u30aa\u30d5\u30bb\u30c3\u30c80x2FA6DE\uff09\u3001\u7279\u306b\u4e00\u90e8\u306e\u30d5\u30a1\u30a4\u30eb\u540d\u62e1\u5f35\u5b50\u306e\u5909\u66f4\u3082\u884c\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118325\" aria-describedby=\"caption-attachment-118325\" style=\"width: 812px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118326 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-41.png\" alt=\"\u56f311 \u53ce\u96c6\u3057\u305f\u30c7\u30fc\u30bf\u3092\u30e1\u30e2\u30ea\u306b\u66f8\u304d\u8fbc\u3080\u95a2\u6570\u547c\u3073\u51fa\u3057\" width=\"812\" height=\"317\" \/><figcaption id=\"caption-attachment-118325\" class=\"wp-caption-text\">\u56f311 \u53ce\u96c6\u3057\u305f\u30c7\u30fc\u30bf\u3092\u30e1\u30e2\u30ea\u306b\u66f8\u304d\u8fbc\u3080\u95a2\u6570\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n<p>\u30c7\u30fc\u30bf\u304c\u53ce\u96c6\u3055\u308c\u308b\u3068<span style=\"font-family: 'courier new', courier, monospace;\">write_c2_data_zero<\/span>\u3078\u306e\u547c\u3073\u51fa\u3057\u304c\u884c\u308f\u308c\u3001\u3053\u308c\u304c<span style=\"font-family: 'courier new', courier, monospace;\">AllocateHeap<\/span> \uff080x2E99DC\uff09\u95a2\u6570\u3092\u547c\u3073\u51fa\u3057\u3066\u8ffd\u52a0\u306e\u30e1\u30e2\u30ea\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u95a2\u6570\u306f\u6700\u7d42\u7684\u306b2\u56de\u547c\u3073\u51fa\u3055\u308c\u3001\u3055\u3089\u306b\u30b5\u30d6\u30eb\u30fc\u30c1\u30f3\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002\u305d\u308c\u3089\u306e\u30b5\u30d6\u30eb\u30fc\u30c1\u30f3\u3067\u306f\u3001<span style=\"font-family: 'courier new', courier, monospace;\">write_c2_data_one<\/span>\u95a2\u6570\u306e\u30aa\u30d5\u30bb\u30c3\u30c80x2F362A\u306b\u3042\u308b\u547d\u4ee4\u304c2\u3064\u306eDWORD\u5024\uff08\u56fa\u5b9a\u5024\u306e0x1\u3001C2\u30c7\u30fc\u30bf\u9577\u306e0x132\uff09\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u306f<span style=\"font-family: 'courier new', courier, monospace;\">copy_c2_data<\/span>\uff08\u30aa\u30d5\u30bb\u30c3\u30c80x2F794C\u306b\u3042\u308b<span style=\"font-family: 'courier new', courier, monospace;\">memcpy<\/span>\u3078\u306e\u30e9\u30c3\u30d1\u30fc\uff09\u95a2\u6570\u3078\u306e\u547c\u3073\u51fa\u3057\u3067\u3059\u3002\u3053\u308c\u306f\u3001C2\u30c7\u30fc\u30bf\u3092\u524d\u8ff0\u306e2\u3064\u306e\u5024\u306e\u96a3\u306e\u65b0\u3057\u3044\u5834\u6240\u306b\u30b3\u30d4\u30fc\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118327\" aria-describedby=\"caption-attachment-118327\" style=\"width: 824px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118328 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-42.png\" alt=\"\u56f312 \u4e2d\u9593C2\u30c7\u30fc\u30bf\u30b3\u30d4\u30fc\u3092\u5b9f\u884c\u3059\u308b\u95a2\u6570\u547c\u3073\u51fa\u3057\" width=\"824\" height=\"187\" \/><figcaption id=\"caption-attachment-118327\" class=\"wp-caption-text\">\u56f312 \u4e2d\u9593C2\u30c7\u30fc\u30bf\u30b3\u30d4\u30fc\u3092\u5b9f\u884c\u3059\u308b\u95a2\u6570\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n<p>\u6b21\u306e\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u306a\u95a2\u6570\u5b9f\u884c\u306f\u3001<em>CryptDuplicateHash<\/em>\u3078\u306e\u547c\u3073\u51fa\u3057\u3067\u3059\u3002\u3053\u306e\u5f8c\u3001<span style=\"font-family: 'courier new', courier, monospace;\">copy_binary_data<\/span>\u3078\u306e\u547c\u3073\u51fa\u3057\u304c\u884c\u308f\u308c\u3001\u305d\u308c\u306b\u3088\u3063\u3066\u6700\u7d42\u7684\u306aC2\u30c7\u30fc\u30bf\u304c\u65b0\u3057\u3044\u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066\u306b\u30b3\u30d4\u30fc\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u5834\u6240\u306b\u306f\u3053\u306e\u3042\u3068\u306e\u5f8c\u7d9a\u306e\u30b9\u30c6\u30c3\u30d7\u3067<em>CryptEncrypt<\/em>\u95a2\u6570\u304c\u6697\u53f7\u5316\u3059\u308b\u524d\u306e\u6700\u5f8c\u306eC2\u30c7\u30fc\u30bf\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118329\" aria-describedby=\"caption-attachment-118329\" style=\"width: 815px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118330 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-43.png\" alt=\"\u56f313 \u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u306a\u3044C2\u30c7\u30fc\u30bf\u306e\u6700\u7d42\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3059\u308b\u95a2\u6570\u547c\u3073\u51fa\u3057\" width=\"815\" height=\"174\" \/><figcaption id=\"caption-attachment-118329\" class=\"wp-caption-text\">\u56f313 \u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u306a\u3044C2\u30c7\u30fc\u30bf\u306e\u6700\u7d42\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3059\u308b\u95a2\u6570\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n<p>\u53c2\u7167\u3057\u3084\u3059\u3044\u3088\u3046\u3001\u6b21\u306e\u56f3\u306b\u3001\u95a2\u9023\u3059\u308b\u5024\u3068\u305d\u306e\u8aac\u660e\u3068\u3092\u305d\u308c\u305e\u308c\u8272\u3092\u304b\u3048\u3066\u5f37\u8abf\u8868\u793a\u3057\u305f\u30d0\u30c3\u30d5\u30a1\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118473\" aria-describedby=\"caption-attachment-118473\" style=\"width: 565px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-44-jp.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-118473 size-full lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-44-jp.png\" alt=\"\u56f314 \u30e1\u30e2\u30ea\u5185\u306e\u30d0\u30a4\u30c8\u30aa\u30d5\u30bb\u30c3\u30c8\u3068\u30b5\u30a4\u30ba\u3068\u305d\u308c\u305e\u308c\u306b\u5bfe\u5fdc\u3059\u308b\u8aac\u660e\" width=\"565\" height=\"248\" \/><\/a><figcaption id=\"caption-attachment-118473\" class=\"wp-caption-text\">\u56f314 \u30e1\u30e2\u30ea\u5185\u306e\u30d0\u30a4\u30c8\u30aa\u30d5\u30bb\u30c3\u30c8\u3068\u30b5\u30a4\u30ba\u3068\u305d\u308c\u305e\u308c\u306b\u5bfe\u5fdc\u3059\u308b\u8aac\u660e<\/figcaption><\/figure>\n<p>\u6b21\u306b<em>CryptEncrypt<\/em>\u95a2\u6570\u30e9\u30c3\u30d1\u30fc\u3078\u306e\u547c\u3073\u51fa\u3057\u304c\u884c\u308f\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30aa\u30d5\u30bb\u30c3\u30c80x2F0AD4\u306b\u3042\u308bEAX\u30ec\u30b8\u30b9\u30bf\u3078\u306e\u9593\u63a5\u547c\u3073\u51fa\u3057\u3092\u4ecb\u3057\u3066\u5b9f\u969b\u306eAPI\u95a2\u6570\u306b\u30a2\u30af\u30bb\u30b9\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118333\" aria-describedby=\"caption-attachment-118333\" style=\"width: 818px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118334 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-45.png\" alt=\"\u56f315 CryptEncrypt\u95a2\u6570\u3078\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057\u306b\u3088\u308aC2\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\" width=\"818\" height=\"236\" \/><figcaption id=\"caption-attachment-118333\" class=\"wp-caption-text\">\u56f315 CryptEncrypt\u95a2\u6570\u3078\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057\u306b\u3088\u308aC2\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316<\/figcaption><\/figure>\n<p>\u6b21\u306e\u56f3\u306f\u3001C2\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u524d\u5f8c\u306e\u72b6\u614b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118475\" aria-describedby=\"caption-attachment-118475\" style=\"width: 668px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-46-jp.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-118475 size-full lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-46-jp.png\" alt=\"\u56f316 C2\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u524d\u5f8c\u306e\u72b6\u614b\" width=\"668\" height=\"151\" \/><\/a><figcaption id=\"caption-attachment-118475\" class=\"wp-caption-text\">\u56f316 C2\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u524d\u5f8c\u306e\u72b6\u614b<\/figcaption><\/figure>\n<p>C2\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3057\u305f\u5f8c\u306e\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u306f\u30aa\u30d5\u30bb\u30c3\u30c80x2EFF2C\u306b\u3042\u308b<em>CryptExportKey<\/em>\u95a2\u6570\u3092\u547c\u3073\u51fa\u3057\u3066\u73fe\u5728\u306e\u6697\u53f7\u5316\u30ad\u30fc\u3092\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<figure id=\"attachment_118337\" aria-describedby=\"caption-attachment-118337\" style=\"width: 812px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118338 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-47.png\" alt=\"\u56f317 CryptExportKey\u30e9\u30c3\u30d1\u30fc\u3078\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057\" width=\"812\" height=\"254\" \/><figcaption id=\"caption-attachment-118337\" class=\"wp-caption-text\">\u56f317 CryptExportKey\u30e9\u30c3\u30d1\u30fc\u3078\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n<p>\u30ad\u30fc\u306e\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u5f8c\u3001\u30aa\u30d5\u30bb\u30c3\u30c80x2EFF41\u306b\u3042\u308b\u30eb\u30fc\u30d7\u5185\u306b\u3001\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3055\u308c\u305f\u30ad\u30fc\u9577\u306e0x60\u30d0\u30a4\u30c8\u5206\u3092C2\u30c7\u30fc\u30bf\u306b\u66f8\u304d\u8fbc\u3080\u30aa\u30d5\u30bb\u30c3\u30c80x2EFF43\u306e\u547d\u4ee4\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118339\" aria-describedby=\"caption-attachment-118339\" style=\"width: 819px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118340 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-48.png\" alt=\"\u56f318 \u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3055\u308c\u305f\u6697\u53f7\u30ad\u30fc\u306e\u30c7\u30fc\u30bf\u3092\u8a18\u5165\u3059\u308b\u66f8\u304d\u8fbc\u307f\u30eb\u30fc\u30d7\" width=\"819\" height=\"171\" \/><figcaption id=\"caption-attachment-118339\" class=\"wp-caption-text\">\u56f318 \u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3055\u308c\u305f\u6697\u53f7\u30ad\u30fc\u306e\u30c7\u30fc\u30bf\u3092\u8a18\u5165\u3059\u308b\u66f8\u304d\u8fbc\u307f\u30eb\u30fc\u30d7<\/figcaption><\/figure>\n<p>\u3053\u3053\u3067\u3001<em>CryptDestroyHash<\/em>\u3078\u306e\u30dd\u30a4\u30f3\u30bf\u3092\u542b\u3080\u30d1\u30e9\u30e1\u30fc\u30bf\u3064\u304d\u3067API\u95a2\u6570<em>CryptGetHashParam<\/em>\u306e\u547c\u3073\u51fa\u3057\u304c\u884c\u308f\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u751f\u6210\u3055\u308c\u305f\u30cf\u30c3\u30b7\u30e520\u30d0\u30a4\u30c8\u5206\u304cC2\u30c7\u30fc\u30bf\u306b\u66f8\u304d\u8fbc\u307e\u308c\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118341\" aria-describedby=\"caption-attachment-118341\" style=\"width: 825px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118342 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-49.png\" alt=\"\u56f319 CryptGetHashParam\u3078\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057\" width=\"825\" height=\"87\" \/><figcaption id=\"caption-attachment-118341\" class=\"wp-caption-text\">\u56f319 CryptGetHashParam\u3078\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n<p>\u6b21\u306e\u56f3\u306f\u6700\u7d42\u7684\u306aC2\u30c7\u30fc\u30bf\u304c\u3069\u306e\u3088\u3046\u306b\u30e1\u30e2\u30ea\u306b\u4fdd\u5b58\u3055\u308c\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118477\" aria-describedby=\"caption-attachment-118477\" style=\"width: 456px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-50-jp.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-118477 size-full lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-50-jp.png\" alt=\"\u56f320 \u30e1\u30e2\u30ea\u5185\u306e\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3055\u308c\u305f\u30ad\u30fc\u3001\u30cf\u30c3\u30b7\u30e5\u5024\u3001\u6697\u53f7\u5316\u3055\u308c\u305fC2\u30c7\u30fc\u30bf\u306e\u30d0\u30a4\u30c8\" width=\"456\" height=\"277\" \/><\/a><figcaption id=\"caption-attachment-118477\" class=\"wp-caption-text\">\u56f320 \u30e1\u30e2\u30ea\u5185\u306e\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3055\u308c\u305f\u30ad\u30fc\u3001\u30cf\u30c3\u30b7\u30e5\u5024\u3001\u6697\u53f7\u5316\u3055\u308c\u305fC2\u30c7\u30fc\u30bf\u306e\u30d0\u30a4\u30c8<\/figcaption><\/figure>\n<h4>C2 \u3078\u306e\u30c7\u30fc\u30bf\u6f0f\u51fa: HTTP POST\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u751f\u6210<\/h4>\n<p>\u3053\u306e\u6bb5\u968e\u3067\u3001<strong>\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3055\u308c\u305f\u30ad\u30fc<\/strong>\u3001<strong>\u30cf\u30c3\u30b7\u30e5\u5024<\/strong>\u3001<strong>\u6697\u53f7\u5316\u3055\u308c\u305fC2\u30c7\u30fc\u30bf<\/strong>\u3092\u542b\u3080C2\u30c7\u30fc\u30bf\u304c\u5b8c\u6210\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u6700\u7d42\u6bb5\u968e\u306f\u30c7\u30fc\u30bf\u6f0f\u51fa\u3092\u5b8c\u4e86\u3055\u305b\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u6b21\u306e\u624b\u9806\u3067\u3001\u5fc5\u8981\u306a\u30c7\u30fc\u30bf\uff08IP\u30a2\u30c9\u30ec\u30b9\u3001HTTP\u30d5\u30a9\u30fc\u30e0\u306e\u69cb\u9020\u3068\u5024\u306a\u3069\uff09\u3092\u6e96\u5099\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118345\" aria-describedby=\"caption-attachment-118345\" style=\"width: 819px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118346 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-51.png\" alt=\"\u56f321 \u30c7\u30fc\u30bf\u6f0f\u51fa\u306e\u524d\u306bHTTP\u306e\u8981\u4ef6\u306e\u524d\u534a\u90e8\u5206\u3092\u6e80\u305f\u3059\u305f\u3081\u306b\u884c\u3046\u95a2\u6570\u547c\u3073\u51fa\u3057\" width=\"819\" height=\"103\" \/><figcaption id=\"caption-attachment-118345\" class=\"wp-caption-text\">\u56f321 \u30c7\u30fc\u30bf\u6f0f\u51fa\u306e\u524d\u306bHTTP\u306e\u8981\u4ef6\u306e\u524d\u534a\u90e8\u5206\u3092\u6e80\u305f\u3059\u305f\u3081\u306b\u884c\u3046\u95a2\u6570\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n<p>\u3053\u306e\u6642\u70b9\u3067\u3001\u5f8c\u7d9a\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057\u304c\u5b9f\u884c\u3055\u308c\u3066HTTP\u30d5\u30a9\u30fc\u30e0\u306b\u542b\u307e\u308c\u308b\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u306e\u3088\u3046\u306a\u6697\u53f7\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3068\u305d\u306eC2\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u6f0f\u51fa\u306b\u3064\u306a\u304c\u308b\u8a73\u7d30\u624b\u9806\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30b9\u30c6\u30c3\u30d7\u306fC2\u30c7\u30fc\u30bf\uff08\u30d0\u30a4\u30c8\uff09\u306eWeb\u30d5\u30a9\u30fc\u30e0\u3078\u306e\u30b3\u30d4\u30fc\u306b\u3088\u308a\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3053\u306e\u51e6\u7406\u306f<span style=\"font-family: 'courier new', courier, monospace;\">copy_c2_data<\/span>\u30b5\u30d6\u30eb\u30fc\u30c1\u30f3\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u9054\u6210\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u95a2\u6570\u306f\u3001\u30d0\u30a4\u30ca\u30ea\u8ee2\u9001\u306b\u9069\u3057\u305f\u5165\u529b\u30c7\u30fc\u30bf\u3092\u542b\u3081\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u30bf\u30a4\u30d7\u304c\u300c<span style=\"font-family: 'courier new', courier, monospace;\">application\/octet-stream<\/span>\u300d\u306e\u30d0\u30a4\u30ca\u30ea<strong>MIME\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb<\/strong>\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118347\" aria-describedby=\"caption-attachment-118347\" style=\"width: 816px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118348 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-52.png\" alt=\"\u56f322 \u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u3092Web\u30d5\u30a9\u30fc\u30e0\u306b\u30b3\u30d4\u30fc\u3059\u308b\u305f\u3081\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057\" width=\"816\" height=\"419\" \/><figcaption id=\"caption-attachment-118347\" class=\"wp-caption-text\">\u56f322 \u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u3092Web\u30d5\u30a9\u30fc\u30e0\u306b\u30b3\u30d4\u30fc\u3059\u308b\u305f\u3081\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n<p>\u3053\u306e\u6bb5\u968e\u3067\u6700\u7d42\u30da\u30a4\u30ed\u30fc\u30c9\u306fC2\u30b5\u30fc\u30d0\u30fc\u306b\u60c5\u5831\u3092\u9001\u4fe1\u3059\u308b\u305f\u3081\u306e\u74b0\u5883\u3092\u6e96\u5099\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u306b\u95a2\u6570\u547c\u3073\u51fa\u3057\u3092\u5b9f\u884c\u3057\u3066\u5fc5\u8981\u306a\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3057\u3001\u3044\u3088\u3044\u3088\u6700\u5f8c\u306eHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118349\" aria-describedby=\"caption-attachment-118349\" style=\"width: 818px\" class=\"wp-caption aligncenter\"><img  class=\"wp-image-118350 lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/word-image-53.png\" alt=\"\u56f323 \u30c7\u30fc\u30bf\u6f0f\u51fa\u306e\u524d\u306bHTTP\u306e\u8981\u4ef6\u306e\u5f8c\u534a\u90e8\u5206\u3092\u6e80\u305f\u3059\u305f\u3081\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057\" width=\"818\" height=\"165\" \/><figcaption id=\"caption-attachment-118349\" class=\"wp-caption-text\">\u56f323 \u30c7\u30fc\u30bf\u6f0f\u51fa\u306e\u524d\u306bHTTP\u306e\u8981\u4ef6\u306e\u5f8c\u534a\u90e8\u5206\u3092\u6e80\u305f\u3059\u305f\u3081\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057<\/figcaption><\/figure>\n<p>\u95a2\u6570\u547c\u3073\u51fa\u3057\u306e\u30ea\u30b9\u30c8\u3067\u793a\u3057\u305f\u3088\u3046\u306b\u3001HttpSendRequestW()API\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u30c7\u30fc\u30bf\u3092\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3057\u307e\u3059\u3002\u3053\u306e\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u9001\u4fe1\u8005\u306fHTTP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u901a\u5e38\u9001\u4fe1\u3059\u308b\u30c7\u30fc\u30bf\u91cf\u3092\u8d85\u3048\u3066\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3067\u304d\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_118479\" aria-describedby=\"caption-attachment-118479\" style=\"width: 602px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/text-table-description-automatically-generated-jp.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-118479 size-full lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2021\/04\/text-table-description-automatically-generated-jp.png\" alt=\"\u56f324 \u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3055\u308c\u305f\u30ad\u30fc\u3001\u30cf\u30c3\u30b7\u30e5\u5024\u3001\u6697\u53f7\u5316\u3055\u308c\u305fC2\u30c7\u30fc\u30bf\u3092\u542b\u3080POST\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u793a\u3059Wireshark\u306e\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\" width=\"602\" height=\"938\" \/><\/a><figcaption id=\"caption-attachment-118479\" class=\"wp-caption-text\">\u56f324 \u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3055\u308c\u305f\u30ad\u30fc\u3001\u30cf\u30c3\u30b7\u30e5\u5024\u3001\u6697\u53f7\u5316\u3055\u308c\u305fC2\u30c7\u30fc\u30bf\u3092\u542b\u3080POST\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u793a\u3059Wireshark\u306e\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3<\/figcaption><\/figure>\n<h2>\u7d50\u8ad6<\/h2>\n<p><a href=\"https:\/\/www.europol.europa.eu\/newsroom\/news\/world%E2%80%99s-most-dangerous-malware-emotet-disrupted-through-global-action\">\u6cd5\u57f7\u884c\u6a5f\u95a2\u304c\u5354\u8abf\u3057\u3066\u884c\u3063\u305f\u30ad\u30e3\u30f3\u30da\u30fc\u30f3<\/a>\u306b\u3088\u3063\u30662021\u5e741\u6708\u4e0b\u65ec\u306b\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u3092\u30b7\u30e3\u30c3\u30c8\u30c0\u30a6\u30f3\u3055\u308c\u308b\u307e\u3067\u306e\u9593\u3001\u6570\u5e74\u306b\u308f\u305f\u3063\u3066Emotet\u306b\u306f\u6d3b\u767a\u306a\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u304c\u898b\u3089\u308c\u307e\u3057\u305f\u3002\u305d\u306e\u653b\u6483\u6226\u8853\u3084\u6280\u8853\u306f\u6642\u9593\u3092\u304b\u3051\u3066\u9032\u5316\u3057\u3066\u304a\u308a\u3001\u305d\u306e\u653b\u6483\u30c1\u30a7\u30fc\u30f3\u306f\u9ad8\u5ea6\u306b\u6210\u719f\u30fb\u6d17\u7df4\u3055\u308c\u305f\u3082\u306e\u3067\u3057\u305f\u3002\u7d50\u679c\u3068\u3057\u3066\u305d\u308c\u304c\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306b\u3068\u3063\u3066\u306f\u826f\u3044\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3\u3068\u306a\u308a\u307e\u3057\u305f\u3002\u4eca\u56de\u306e\u8abf\u67fb\u3067\u306f\u3001C2\u30b5\u30fc\u30d0\u30fc\u306eIP\u9078\u629e\u3084\u30c7\u30fc\u30bf\u6697\u53f7\u5316\u306a\u3069\u3092\u542b\u3080Emotet\u306eC2\u901a\u4fe1\u4f8b\u3092\u63d0\u793a\u3059\u308b\u3053\u3068\u3067\u3001Emotet\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u304c\u305d\u3046\u3057\u305f\u9ad8\u5ea6\u306a\u624b\u6cd5\u3092\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u88fd\u54c1\u306b\u3088\u308b\u691c\u51fa\u306e\u56de\u907f\u306b\u3069\u306e\u3088\u3046\u306b\u751f\u304b\u3057\u3066\u3044\u308b\u306e\u304b\u304c\u3082\u3063\u3068\u308f\u304b\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3001\u6b21\u306e\u65b9\u6cd5\u3067\u3053\u306e\u7a2e\u306e\u653b\u6483\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ol>\n<li><a href=\"https:\/\/www.paloaltonetworks.jp\/products\/secure-the-network\/subscriptions\/threat-prevention\">\u8105\u5a01\u9632\u5fa1<\/a>\u306e\u30b7\u30b0\u30cd\u30c1\u30e3<a href=\"https:\/\/threatvault.paloaltonetworks.com\/?query=21201\">21201<\/a>\u3001<a href=\"https:\/\/threatvault.paloaltonetworks.com\/?query=21185\">21185<\/a>\u3001<a href=\"https:\/\/threatvault.paloaltonetworks.com\/?query=21167\">21167<\/a>\u306f\u3001\u65b0\u3057\u3044\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3001\u6a5f\u5bc6\u60c5\u5831\u3092\u9001\u4fe1\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308bHTTP C2\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<li><a href=\"https:\/\/www.paloaltonetworks.jp\/products\/secure-the-network\/wildfire\">WildFire<\/a>\u3068<a href=\"https:\/\/www.paloaltonetworks.jp\/cortex\/cortex-xdr\">Cortex XDR<\/a>\u306fEmotet\u3068\u305d\u306e\u30c9\u30ed\u30c3\u30d1\u3092\u8b58\u5225\u3057\u3066\u30d6\u30ed\u30c3\u30af\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n<h4><strong>IoC<\/strong><\/h4>\n<h6>\u30b5\u30f3\u30d7\u30eb<\/h6>\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">2cb81a1a59df4a4fd222fbcb946db3d653185c2e79cf4d3365b430b1988d485f<\/span><\/li>\n<\/ul>\n<h6>\u30c9\u30ed\u30c3\u30d1<\/h6>\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">bbb9c1b98ec307a5e84095cf491f7475964a698c90b48a9d43490a05b6ba0a79<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">bd1e56637bd0fe213c2c58d6bd4e6e3693416ec2f90ea29f0c68a0b91815d91a<\/span><\/li>\n<\/ul>\n<h6>URL<\/h6>\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">http:\/\/allcannabismeds[.]com\/unraid-map\/ZZm6\/<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">http:\/\/giannaspsychicstudio[.]com\/cgi-bin\/PP\/<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">http:\/\/ienglishabc[.]com\/cow\/JH\/<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">http:\/\/abrillofurniture[.]com\/bph-nclex-wygq4\/a7nBfhs\/<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">https:\/\/etkindedektiflik[.]com\/pcie-speed\/U\/<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">https:\/\/vstsample[.]com\/wp-includes\/7eXeI\/<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">http:\/\/ezi-pos[.]com\/categoryl\/x\/<\/span><\/li>\n<\/ul>\n<h6>IP \u30a2\u30c9\u30ec\u30b9<\/h6>\n<ul>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">5.2.136[.]90<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">161.49.84[.]2<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">70.32.89[.]105<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">190.247.139[.]101<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">138.197.99[.]250<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">152.170.79[.]100<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">190.55.186[.]229<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">132.248.38[.]158<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">110.172.180[.]180<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">37.46.129[.]215<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">203.157.152[.]9<\/span><\/li>\n<li><span style=\"font-family: 'courier new', courier, monospace;\">157.245.145[.]87<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981 2021\u5e743\u67088\u65e5\u3001Unit 42\u306f\u30d6\u30ed\u30b0\u300c\u653b\u6483\u30c1\u30a7\u30fc\u30f3\u306e\u6982\u8981: 2020\u5e7412\u6708\u304a\u3088\u30732021\u5e741\u6708\u306eEmotet\u300d\u3092\u516c\u958b\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u5206\u6790\u304b\u3089\u3001\u66f4\u65b0\u3055\u308c\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\u306eEmotet\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30b3\u30de\u30f3\u30c9&amp;<\/p>\n","protected":false},"author":347,"featured_media":134284,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[4321,1974,4428],"tags":[4843,5786,5397,4849],"product_categories":[4346,4442,4444,4448,4456],"coauthors":[2423,845],"class_list":["post-118466","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-threat-research","category-malware-ja","category-threat-research-ja","tag-c2-ja","tag-command-and-control","tag-emotet-ja","tag-exploit-ja","product_categories-advanced-threat-prevention","product_categories-advanced-threat-prevention-ja","product_categories-advanced-wildfire-ja","product_categories-cortex-xdr-ja","product_categories-next-generation-firewall-ja"],"yoast_head":"<!-- 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property=\"og:title\" content=\"Emotet\u306e\u30b3\u30de\u30f3\u30c9&amp;\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3\" \/>\n<meta property=\"og:description\" content=\"Emotet \u306e\u80cc\u5f8c\u306b\u3044\u308b\u8105\u5a01\u653b\u6483\u8005\u304c\u30c6\u30a4\u30af\u30c0\u30a6\u30f3\u3055\u308c\u308b\u524d\u3001\u79c1\u305f\u3061\u304c\u89b3\u6e2c\u3057\u305f \u540c\u8105\u5a01\u306e C2 \u306e\u6280\u8853\u5206\u6790\u3092\u9806\u3092\u8ffd\u3063\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/unit42.paloaltonetworks.com\/ja\/emotet-command-and-control\/\" \/>\n<meta property=\"og:site_name\" content=\"Unit 42\" \/>\n<meta property=\"article:published_time\" content=\"2021-04-13T07:42:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2024\/06\/14_Cybercrime_Category_1920x900.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Chris Navarrete, Yanhui Jia\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Emotet\u306e\u30b3\u30de\u30f3\u30c9&\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3","description":"Emotet \u306e\u80cc\u5f8c\u306b\u3044\u308b\u8105\u5a01\u653b\u6483\u8005\u304c\u30c6\u30a4\u30af\u30c0\u30a6\u30f3\u3055\u308c\u308b\u524d\u3001\u79c1\u305f\u3061\u304c\u89b3\u6e2c\u3057\u305f \u540c\u8105\u5a01\u306e C2 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