{"id":117535,"date":"2021-03-14T20:04:27","date_gmt":"2021-03-15T03:04:27","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=117535"},"modified":"2021-03-14T20:09:21","modified_gmt":"2021-03-15T03:09:21","slug":"dearcry-ransomware","status":"publish","type":"post","link":"https:\/\/unit42.paloaltonetworks.com\/ja\/dearcry-ransomware\/","title":{"rendered":"\u8105\u5a01\u306e\u8a55\u4fa1: DearCry\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2"},"content":{"rendered":"

\u6982\u8981<\/h2>\n

\u5148\u9031\u3001Microsoft\u304c\u300c\u653b\u6483\u8005\u304c4\u3064\u306e\u30bc\u30ed\u30c7\u30a4\u8106\u5f31\u6027<\/a>\u4f7f\u7528\u3057\u3066Exchange Mail Servers\u3092\u4fb5\u5bb3\u3057\u305f\u300d\u3068\u5831\u544a\u3057\u307e\u3057\u305f\u3002\u540c\u793e\u306f\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u516c\u958b\u3057\u307e\u3057\u305f<\/a>\u304c\u3001\u60aa\u610f\u306e\u3042\u308b\u30c4\u30fc\u30eb\u3084\u30de\u30eb\u30a6\u30a7\u30a2\u306b\u3088\u308b\u653b\u6483\u8005\u306b\u3088\u308b\u8106\u5f31\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u306eMicrosoft Exchange Server\u3078\u306e\u653b\u6483\u306f\u7d9a\u3044\u3066\u304a\u308a\u3001\u3053\u308c\u304c\u30c7\u30fc\u30bf\u6f0f\u3048\u3044\u306b\u3064\u306a\u304c\u308b\u304a\u305d\u308c\u304c\u3042\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u540c\u793e\u304c\u78ba\u8a8d\u3057\u305f\u3068\u3053\u308d\u3067\u306f<\/a>\u3001\u3053\u308c\u3089\u306e\u8106\u5f31\u6027\u3092\u5229\u7528\u3059\u308b\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u4e9c\u7a2e\u304c\u5b58\u5728\u3057\u3066\u304a\u308a\u3001\u3053\u308c\u306f\u300cDearCry\u300d\u3068\u547c\u3070\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3068\u306f\u7121\u95a2\u4fc2\u306a\u3079\u3064\u306e\u60aa\u540d\u9ad8\u3044\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u30d5\u30a1\u30df\u30ea\u3068\u3057\u3066\u300cWannaCry\u300d\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3061\u3089\u306f\u7d44\u7e54\u5316\u3055\u308c\u305f\u653b\u6483\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u306e\u30da\u30a4\u30ed\u30fc\u30c9\u306b\u4f7f\u7528\u3055\u308c\u3001Microsoft\u306e\u65e2\u77e5\u306e\u8106\u5f31\u6027\u3092\u5229\u7528\u3057\u3066\u88ab\u5bb3\u7aef\u672b\u3092\u4e00\u6589\u306b\u611f\u67d3\u3055\u305b<\/a>\u3066\u3044\u308b\u3082\u306e\u3067\u3059\u3002\u3053\u306e\u540d\u79f0\u304b\u3089\u3057\u3066\u3001\u540c\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u4f5c\u8005\u304cWannaCry\u306b\u656c\u610f\u3092\u8868\u3057\u3066\u300cDearCry\u300d\u3068\u3044\u3046\u540d\u3092\u3064\u3051\u305f\u3068\u8003\u3048\u308b\u306e\u304c\u307e\u305a\u59a5\u5f53\u3067\u3057\u3087\u3046\u3002<\/p>\n

\u60aa\u610f\u306e\u3042\u308b\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306e\u6025\u5897\u3092\u53d7\u3051\u3001\u8105\u5a01\u5168\u5bb9\u306e\u628a\u63e1\u306e\u305f\u3081\u3001\u672c\u8105\u5a01\u8a55\u4fa1\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002\u89b3\u6e2c\u3055\u308c\u305f\u30c6\u30af\u30cb\u30c3\u30af\u3084\u305d\u308c\u306b\u5bfe\u5fdc\u3057\u3066\u3068\u308b\u3079\u304d\u884c\u52d5\u65b9\u91dd\u5168\u4f53 (CoA) \u3092\u8996\u899a\u5316\u3057\u305f\u5185\u5bb9\u306b\u3064\u3044\u3066\u306fUnit 42\u306eATOM\u30d3\u30e5\u30fc\u30a2<\/a>\u304b\u3089\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n

\u4fb5\u5bb3\u306e\u61f8\u5ff5\u304c\u3042\u308a\u5f0a\u793e\u306b\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u30ec\u30b9\u30dd\u30f3\u30b9\u306b\u95a2\u3059\u308b\u3054\u76f8\u8ac7\u3092\u306a\u3055\u308a\u305f\u3044\u5834\u5408\u306f\u3001infojapan@paloaltonetworks.com<\/a> \u307e\u3067\u96fb\u5b50\u30e1\u30fc\u30eb\u306b\u3066\u3054\u9023\u7d61\u304f\u3060\u3055\u3044 \uff08\u3054\u76f8\u8ac7\u306f\u5f0a\u793e\u88fd\u54c1\u306e\u304a\u5ba2\u69d8\u306b\u306f\u9650\u5b9a\u3055\u308c\u307e\u305b\u3093\uff09\u3002<\/p>\n

DearCry\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306e\u6982\u8981<\/h2>\n

DearCry\u306f\u3001Microsoft Exchange Server\u306eProxyLogon\u306e\u8106\u5f31\u6027<\/a>\u3092\u521d\u671f\u30a2\u30af\u30bb\u30b9\u306b\u60aa\u7528\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3055\u308c\u3066\u3044\u308b\u65b0\u305f\u306a\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u4e9c\u7a2e\u3067\u3059\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306eMichael Gillespie\u6c0f\u306b\u3088\u308c\u3070<\/a>\u3001ProxyLogon\u8106\u5f31\u6027\u3092\u5229\u7528\u3057\u305f\u95a2\u9023Microsoft Exchange Server\u306e\u4fb5\u5bb3\u3092\u3068\u3082\u306a\u3046DearCry\u8eab\u4ee3\u91d1\u30e1\u30e2\u51fa\u73fe\u306e\u521d\u671f\u5831\u544a\u304c2021\u5e743\u67089\u65e5\u306b\u8868\u9762\u5316\u3057\u59cb\u3081\u3066\u304a\u308a\u3001\u305d\u306e\u88ab\u5bb3\u5bfe\u8c61\u306f\u7c73\u56fd\u3001\u30ab\u30ca\u30c0\u3001\u30aa\u30fc\u30b9\u30c8\u30e9\u30ea\u30a2\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u5b9f\u884c\u3055\u308c\u308b\u3068DearCry\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306fAES-256\u3068RSA-2048\u3092\u4f7f\u7528\u3057\u3066\u88ab\u5bb3\u7aef\u672b\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u6697\u53f7\u5316\u3057\u3001\u30d5\u30a1\u30a4\u30eb\u30d8\u30c3\u30c0\u3092\u5909\u66f4\u3057\u3066\u300cDEARCRY!<\/span>\u300d\u3068\u3044\u3046\u6587\u5b57\u5217\u3092\u542b\u3081\u307e\u3059\uff08\u56f31\u53c2\u7167\uff09\u3002<\/p>\n

\"\u3053\u3053\u306b\u3057\u3081\u3059\u3088\u3046\u306b\u3001\u5b9f\u884c\u3055\u308c\u308b\u3068\u3001DearCry\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306fAES-256\u3068RSA-2048\u3092\u4f7f\u7528\u3057\u3066\u88ab\u5bb3\u7aef\u672b\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u6697\u53f7\u5316\u3057\u3001\u30d5\u30a1\u30a4\u30eb\u30d8\u30c3\u30c0\u3092\u5909\u66f4\u3057\u3066\u300cDEARCRY!\u300d\u3068\u3044\u3046\u6587\u5b57\u5217\u3092\u542b\u3081\u307e\u3059\u3002
\u56f31 DearCry\u306e\u30d5\u30a1\u30a4\u30eb\u30d8\u30c3\u30c0<\/figcaption><\/figure>\n

\u591a\u304f\u306e\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u4e9c\u7a2e\u540c\u69d8\u3001DearCry\u3082\u88ab\u5bb3\u8005\u306e\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u306b\u8eab\u4ee3\u91d1\u30e1\u30e2\u3092\u6b8b\u3057\u307e\u3059\u3002\u305f\u3060\u3057DearCry\u306e\u30e1\u30e2\u306b\u306f\u56fa\u5b9a\u984d\u306e\u8eab\u4ee3\u91d1\u8981\u6c42\u3092\u3059\u308b\u30d3\u30c3\u30c8\u30b3\u30a4\u30f3\u30a6\u30a9\u30ec\u30c3\u30c8\u30a2\u30c9\u30ec\u30b9\u3092\u542b\u3081\u308b\u4ee3\u308f\u308a\u306b\u3001\u88ab\u5bb3\u8005\u304c\u9023\u7d61\u3059\u308b\u3088\u3046\u306b\u6c42\u3081\u3089\u308c\u308b2\u3064\u306e\u96fb\u5b50\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3068\u3001\u63d0\u4f9b\u3055\u308c\u305f\u30cf\u30c3\u30b7\u30e5\u3092\u9001\u4fe1\u3059\u308b\u3088\u3046\u306b\u3068\u3044\u3046\u8981\u6c42\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\uff08\u56f32\u53c2\u7167\uff09\u3002<\/p>\n

\"DearCry\u306e\u8eab\u4ee3\u91d1\u30e1\u30e2\u5185\u5bb9\u300c\u8cb4\u6bbf\u306e\u30d5\u30a1\u30a4\u30eb\u306f\u6697\u53f7\u5316\u3055\u308c\u305f\u3002\u5fa9\u53f7\u3057\u305f\u3051\u308c\u3070\u4ee5\u4e0b\u306b\u554f\u3044\u5408\u308f\u305b\u3088\u3002\u300d\u305d\u306e\u4e0b\u306b2\u3064\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3068\u63d0\u4f9b\u3055\u308c\u305f\u30cf\u30c3\u30b7\u30e5\u3078\u306e\u8981\u6c42\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\u56f32 DearCry\u306e\u8eab\u4ee3\u91d1\u30e1\u30e2<\/figcaption><\/figure>\n

\u5b9f\u884c\u4e2d\u3001DearCry\u306fWindows\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u30cd\u30a4\u30c6\u30a3\u30d6\u3067\u306f\u306a\u3044\u300cmsupdate\u300d\u3068\u3044\u3046\u540d\u524d\u306e\u30b5\u30fc\u30d3\u30b9\u3082\u5b9f\u884c\u3057\u307e\u3059\u3002\u3053\u306e\u30b5\u30fc\u30d3\u30b9\u306f\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u304c\u6697\u53f7\u5316\u30d7\u30ed\u30bb\u30b9\u3092\u7d42\u4e86\u3059\u308b\u3068\u5f8c\u3067\u524a\u9664\u3055\u308c\u307e\u3059\u3002\u3055\u3089\u306b\u88ab\u5bb3\u30b7\u30b9\u30c6\u30e0\u4e0a\u3067\u306fCD-ROM\u30c9\u30e9\u30a4\u30d6\u3092\u9664\u304fWindows\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u4e0a\u306e\u3059\u3079\u3066\u306e\u8ad6\u7406\u30c9\u30e9\u30a4\u30d6\u304c\u5217\u6319\u3055\u308c\u3001\u305d\u308c\u306b\u3088\u308a\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u304cRSA\u516c\u958b\u9375\u3092\u4f7f\u3063\u3066\u30d5\u30a1\u30a4\u30eb\u306e\u6697\u53f7\u5316\u3092\u958b\u59cb\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002
\n2021\u5e743\u6708\u6642\u70b9\u3067DearCry\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306f\u4ee5\u4e0b\u306e\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50\u3092\u6301\u3064\u30d5\u30a1\u30a4\u30eb\u3092\u6a19\u7684\u306b\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\n.TIF, .TIFF, .PDF, .XLS, .XLSX, .XLTM, .PS, .PPS, .PPT, .PPTX, .DOC, .DOCX, .LOG, .MSG, .RTF, .TEX, .TXT, .CAD, .WPS, .EML, .INI, .CSS, .HTM, .HTML, .XHTML, .JS, .JSP, .PHP, .KEYCHAIN, .PEM, .SQL, .APK, .APP, .BAT, .CGI, .ASPX, .CER, .CFM, .C, .CPP, .GO, .CONFIG, .PL, .PY, .DWG, .XML, .JPG, .BMP, .PNG, .EXE, .DLL, .CAD, .AVI, .H, .CSV, .DAT, .ISO, .PST, .PGD, .7Z, .RAR, .ZIP, .ZIPX, .TAR, .PDB, .BIN, .DB, .MDB, .MDF, .BAK, .LOG, .EDB, .STM, .DBF, .ORA, .GPG, .EDB, .MFS<\/span>\u672c\u7a3f\u57f7\u7b46\u6642\u70b9\u3067\u306f\u3001\u672c\u8105\u5a01\u306b\u5e30\u5c5e\u3059\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3055\u308c\u3066\u3044\u308b\u30b5\u30f3\u30d7\u30eb\u306b\u306f\u3059\u3079\u3066\u3001\u611f\u67d3\u30d5\u30a1\u30a4\u30eb\u306e\u62e1\u5f35\u5b50\u3068\u3057\u3066.CRYPT<\/span>\u304c\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\"\u3053\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u304c\u793a\u3059\u3088\u3046\u306b\u3001DearCry\u6697\u53f7\u5316\u30d5\u30a1\u30a4\u30eb\u306f.CRYPT\u62e1\u5f35\u5b50\u3092\u5229\u7528\u3057\u307e\u3059\u3002
\u56f33 DearCry\u306e\u6697\u53f7\u5316\u30d5\u30a1\u30a4\u30eb<\/figcaption><\/figure>\n

\u884c\u52d5\u65b9\u91dd<\/h2>\n

\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001DearCry\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306b\u95a2\u9023\u3059\u308b\u6226\u8853\u3068\u624b\u6cd5\u3092\u6587\u66f8\u5316\u3057\u3001\u305d\u308c\u3089\u3092\u5f0a\u793e\u88fd\u54c1\u30fb\u30b5\u30fc\u30d3\u30b9\u306b\u76f4\u63a5\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u304a\u5ba2\u69d8\u306b\u3066\u30c7\u30d0\u30a4\u30b9\u306e\u69cb\u6210\u304c\u6b63\u3057\u304f\u884c\u308f\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3082\u3054\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u88fd\u54c1\/\u30b5\u30fc\u30d3\u30b9<\/strong><\/td>\n\u884c\u52d5\u65b9\u91dd<\/strong><\/td>\n<\/tr>\n
\n

\u521d\u671f\u30a2\u30af\u30bb\u30b9<\/strong><\/p>\n<\/td>\n<\/tr>\n

\n

Exploit Public-Facing Application [T1190]
\n\uff08\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u516c\u958b\u3055\u308c\u305f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u60aa\u7528 [T1190]\uff09<\/strong><\/p>\n<\/td>\n<\/tr>\n

NGFW<\/td>\nuntrust\u30be\u30fc\u30f3\u304b\u3089\u3088\u308a\u4fe1\u983c\u3067\u304d\u308btrust\u30be\u30fc\u30f3\u3078\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8a31\u53ef\u3059\u308b\u5834\u5408\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059<\/td>\n<\/tr>\n
\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8a31\u53ef\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u3067\u30b5\u30fc\u30d3\u30b9\u306b\u300cany\u300d\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u304c\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059<\/td>\n<\/tr>\n
\u4fe1\u983c\u3055\u308c\u305f\u8105\u5a01\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30b9\u30bd\u30fc\u30b9\u306eIP\u30a2\u30c9\u30ec\u30b9\u3068\u306e\u9593\u306e\u3059\u3079\u3066\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u62d2\u5426\u3059\u308b\u300c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u300d\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059<\/td>\n<\/tr>\n
\u8105\u5a01\u9632\u5fa1\u2020<\/em><\/td>\n\u8106\u5f31\u6027\u9632\u5fa1\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u91cd\u5927\u5ea6\u300cCritical\uff08\u91cd\u5927\uff09\u300d\u304a\u3088\u3073\u300cHigh\uff08\u9ad8\uff09\u300d\u306e\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b\u653b\u6483\u304c\u300cBlock\uff08\u30d6\u30ed\u30c3\u30af\uff09\u300d\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3001\u91cd\u5927\u5ea6\u300cMedium\uff08\u4e2d\uff09\u300d\u3001\u300cLow\uff08\u4f4e\uff09\u300d\u3001\u300cInformational\uff08\u60c5\u5831\uff09\u300d\u306e\u8106\u5f31\u6027\u304c\u300cDefault\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\uff09\u300d\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059<\/td>\n<\/tr>\n
\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8a31\u53ef\u3059\u308b\u3059\u3079\u3066\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30eb\u30fc\u30eb\u306b\u30bb\u30ad\u30e5\u30a2\u306a\u8106\u5f31\u6027\u9632\u5fa1\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u9069\u7528\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059<\/td>\n<\/tr>\n
Content Pack 8380\u3092\u30c7\u30d7\u30ed\u30a4\u3057\u3001\u3053\u308c\u30894\u3064\u306e\u30bc\u30ed\u30c7\u30a4\u8106\u5f31\u6027\u3092\u691c\u51fa\u3057\u307e\u3059<\/td>\n<\/tr>\n
WildFire\u2020<\/em><\/td>\nWildFire\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306e\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u5236\u9650\u304c\u6700\u5927\u5316\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059<\/td>\n<\/tr>\n
WildFire\u30d5\u30a1\u30a4\u30eb\u30d6\u30ed\u30c3\u30af\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306e\u3059\u3079\u3066\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3001\u30d5\u30a1\u30a4\u30eb\u30bf\u30a4\u30d7\u306b\u3064\u3044\u3066\u3001\u8ee2\u9001\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059<\/td>\n<\/tr>\n
\u3059\u3079\u3066\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u3067WildFire\u5206\u6790\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059<\/td>\n<\/tr>\n
\u5fa9\u53f7\u3057\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u306eWildFire\u3078\u306e\u8ee2\u9001\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059<\/td>\n<\/tr>\n
\u3059\u3079\u3066\u306eWildFire\u30bb\u30c3\u30b7\u30e7\u30f3\u60c5\u5831\u8a2d\u5b9a\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059<\/td>\n<\/tr>\n
WildFire\u306b\u3088\u3063\u3066\u691c\u51fa\u3055\u308c\u305f\u60aa\u610f\u306e\u3042\u308b\u30d5\u30a1\u30a4\u30eb\u306b\u5bfe\u3059\u308b\u30a2\u30e9\u30fc\u30c8\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059<\/td>\n<\/tr>\n
\u300cWildFire\u306e\u66f4\u65b0\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u300d\u304c\u6bce\u5206\u3054\u3068\u306b\u66f4\u65b0\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059<\/td>\n<\/tr>\n
Cortex XSOAR<\/td>\nXSOAR \u306e\u30d7\u30ec\u30a4\u30d6\u30c3\u30af\u3092\u30c7\u30d7\u30ed\u30a4 \u2013 Isolate Endpoint<\/td>\n<\/tr>\n
\n

\u9632\u885b\u56de\u907f\u3001\u63a2\u7d22\u3001\u5f71\u97ff<\/strong><\/p>\n<\/td>\n<\/tr>\n

\n

Disable or Modify Tools [T1562.001]\uff08\u30c4\u30fc\u30eb\u306e\u7121\u52b9\u5316\u306a\u3044\u3057\u5909\u66f4\uff09,
\nFile and Directory Discovery [T1083]\uff08\u30d5\u30a1\u30a4\u30eb\u3068\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u63a2\u7d22\uff09,
\nData Encrypted for Impact [T1486]\uff08\u5f71\u97ff\u3092\u72d9\u3063\u305f\u30c7\u30fc\u30bf\u6697\u53f7\u5316\uff09,
\nService Stop [T1489]\uff08\u30b5\u30fc\u30d3\u30b9\u306e\u505c\u6b62\uff09<\/strong><\/p>\n<\/td>\n<\/tr>\n

Cortex XDR<\/td>\n\u30a2\u30f3\u30c1\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u30d7\u30ed\u30c6\u30af\u30b7\u30e7\u30f3\u3092\u6709\u52b9\u306b\u3057\u307e\u3059<\/td>\n<\/tr>\n
\u30a2\u30f3\u30c1\u30de\u30eb\u30a6\u30a7\u30a2\u30d7\u30ed\u30c6\u30af\u30b7\u30e7\u30f3\u3092\u6709\u52b9\u306b\u3057\u307e\u3059<\/td>\n<\/tr>\n
\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u691c\u51fa\u306e\u305f\u3081\u306b\u6b21\u306eBIOC\u30a2\u30e9\u30fc\u30c8\u3092\u63a2\u3057\u307e\u3059*:<\/p>\n

Cortex XDR Agent \u2013 Behavioral Threat Detected<\/p>\n

Cortex XDR Analytics \u2013 Multiple Discovery Commands<\/td>\n<\/tr>\n

Cortex XSOAR<\/td>\nXSOAR\u306e\u30d7\u30ec\u30a4\u30d6\u30c3\u30af\u3092\u30c7\u30d7\u30ed\u30a4 - Ransomware Manual<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u88681 DearCry\u306e\u884c\u52d5\u65b9\u91dd
\n<\/em><\/span><\/sup><\/span><\/p>\n

\u2020\u3053\u308c\u3089\u306e\u6a5f\u80fd\u306f\u3001NGFW\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u30b5\u30fc\u30d3\u30b9\u306e\u4e00\u90e8\u3067\u3059
\n<\/em><\/span><\/sup><\/span>* \u3053\u308c\u3089\u306e\u5206\u6790\u691c\u51fa\u5668\u306f\u3001Cortex XDR Pro\u306e\u304a\u5ba2\u69d8\u306b\u5bfe\u3057\u81ea\u52d5\u7684\u306b\u30c8\u30ea\u30ac\u30fc\u3055\u308c\u307e\u3059<\/em><\/span><\/sup><\/span><\/p>\n

\u7d50\u8ad6<\/h2>\n

DearCry\u306fMicrosoft Exchange Server\u306eProxyLogon\u8106\u5f31\u6027\u3092\u5229\u7528\u3059\u308b\u65b0\u305f\u306a\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u3067\u3059\u3002\u307e\u305f\u3053\u306e\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u306f\u3001\u65b0\u305f\u306b\u958b\u793a\u3055\u308c\u305f\u8106\u5f31\u6027\u3092\u624b\u3063\u53d6\u308a\u65e9\u304f\u4f7f\u3063\u3066\u5229\u76ca\u3092\u4e0a\u3052\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u8105\u5a01\u30a2\u30af\u30bf\u30fc\u304c\u8105\u5a01\u306e\u6982\u6cc1\u306b\u3069\u306e\u3088\u3046\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u304b\u3092\u793a\u3057\u305f\u683c\u597d\u306e\u4f8b\u3068\u3044\u3048\u307e\u3059\u3002\u5f0a\u793e\u306f\u3001\u3059\u3079\u3066\u306eMicrosoft Exchange Server\u3092\u3001Microsoft\u304c\u30ea\u30ea\u30fc\u30b9\u3057\u305f\u6700\u65b0\u306e\u4fee\u6b63\u3092\u9069\u7528\u3057\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u305f\u3060\u3061\u306b\u66f4\u65b0\u3059\u308b\u3053\u3068\u3092\u5f37\u304f\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n

\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3001\u88fd\u54c1\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u3067\u4fdd\u8b77\u3055\u308c\u3066\u304a\u308a\u3001\u6b21\u306e\u88fd\u54c1\u3068\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u306b\u5bfe\u7b56\u3092\u5c55\u958b\u6e08\u307f\u3067\u3059\u3002<\/p>\n