{"id":11594,"date":"2020-06-19T15:16:02","date_gmt":"2020-06-19T07:16:02","guid":{"rendered":"https:\/\/www.kaspersky.com.cn\/blog\/?p=11594"},"modified":"2020-11-09T18:01:32","modified_gmt":"2020-11-09T10:01:32","slug":"jumping-over-air-gap","status":"publish","type":"post","link":"https:\/\/www.kaspersky.com.cn\/blog\/jumping-over-air-gap\/11594\/","title":{"rendered":"\u5373\u4f7f\u4e0d\u8054\u7f51\uff0c\u4e0d\u6cd5\u5206\u5b50\u7167\u6837\u53ef\u4ee5\u8de8\u8d8a\u9694\u79bb\u7f51\u95f8\u7a83\u53d6\u4f60\u7684\u6570\u636e\uff1f"},"content":{"rendered":"<p>\u4e92\u8054\u7f51\u5145\u65a5\u7740\u5404\u79cd\u5404\u6837\u7684\u5b89\u5168\u5a01\u80c1\u3002\u56e0\u6b64\uff0c\u5bf9\u4e8e\u5b58\u6709\u5b9d\u8d35\u4fe1\u606f\u6216\u8005\u63a7\u5236\u91cd\u8981\u6d41\u7a0b\u7684\u8ba1\u7b97\u673a\uff0c\u4eba\u4eec\u53ef\u80fd\u4f1a\u91c7\u7528\u4e00\u79cd\u975e\u5e38\u6781\u7aef\u7684\u505a\u6cd5\u6765\u4fdd\u62a4\u5b83\uff0c\u5373\u65ad\u5f00\u5b83\u4e0e\u4e92\u8054\u7f51\u7684\u8fde\u63a5\uff0c\u751a\u81f3\u6709\u53ef\u80fd\u65ad\u5f00\u5305\u62ec\u672c\u5730\u8fde\u63a5\u5728\u5185\u7684\u6240\u6709\u7f51\u7edc\u8fde\u63a5\u3002\u8fd9\u79cd\u7269\u7406\u9694\u79bb\u65b9\u6cd5\u88ab\u79f0\u4e3a\u9694\u79bb\u7f51\u95f8\uff08air 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Guri\u535a\u58eb\u5e26\u9886\u4e00\u652f\u7814\u7a76\u56e2\u961f\u4e13\u653b\u6570\u636e\u7a83\u53d6\u6280\u672f\uff0c\u6211\u4eec\u5c06\u4e3a\u4f60\u89e3\u91ca\u5176\u7814\u7a76\u6210\u679c\u5e76\u5206\u6790\u8fd9\u4e00\u5207\u5bf9\u6211\u4eec\u7684\u5f71\u54cd\u3002<\/p>\n<h2>\u5982\u4f55\u8de8\u8d8a\u9694\u79bb\u7f51\u95f8\uff1f<\/h2>\n<p>\u9694\u79bb\u7f51\u95f8\u5b58\u5728\u5b89\u5168\u9690\u60a3\u65e9\u5df2\u4e0d\u662f\u4ec0\u4e48\u65b0\u95fb\uff0c\u4f9b\u5e94\u94fe\u653b\u51fb\u548c\u5185\u90e8\u4eba\u5458\u53d7\u5230\u8d3f\u8d42\u8fd9\u4e9b\u60c5\u51b5\u5b8c\u5168\u6709\u53ef\u80fd\u53d1\u751f\u3002\u901a\u8fc7\u88ab\u611f\u67d3\u8fc7\u7684\u95ea\u5b58\u9a71\u52a8\u53d1\u52a8\u7b80\u5355\u7684\u653b\u51fb\uff0c<a href=\"https:\/\/www.kaspersky.com\/blog\/stuxnet-victims-zero\/6775\/\" target=\"_blank\" rel=\"noopener nofollow\">\u81ed\u540d\u662d\u8457\u7684Stuxnet\uff08\u9707\u7f51\u75c5\u6bd2\uff09\u5c31\u662f\u4ee5\u6b64\u5f00\u59cb\u7684<\/a>\u3002<\/p>\n<p>\u597d\uff0c\u8ba9\u6211\u4eec\u5047\u8bbe\u7269\u7406\u9694\u79bb\u7684\u8ba1\u7b97\u673a\u88ab\u611f\u67d3\u4e86\uff0c\u4f46\u662f\u5728\u6ca1\u6709\u4e92\u8054\u7f51\u8fde\u63a5\u7684\u60c5\u51b5\u4e0b\uff0c\u653b\u51fb\u8005\u662f\u5982\u4f55\u7a83\u53d6\u6570\u636e\u7684\u5462\uff1f<\/p>\n<p>\u8fd9\u5c31\u662f\u5230\u4e86\u5728\u7269\u7406\u9886\u57df\u53d1\u6325\u521b\u610f\u7684\u65f6\u5019\u4e86\uff0c\u7269\u7406\u9694\u79bb\u7684\u8ba1\u7b97\u673a\u65e0\u6cd5\u901a\u8fc7\u7f51\u7edc\u5411\u5916\u53d1\u51fa\u4efb\u4f55\u4fe1\u53f7\uff0c\u4f46\u662f\u5b83\u4ecd\u7136\u53ef\u4ee5\u4ea7\u751f\u70ed\u91cf\uff0c\u78c1\u573a\u548c\u58f0\u97f3\u7b49\u3002\u653b\u51fb\u8005\u6b63\u662f\u901a\u8fc7\u8fd9\u4e9b\u5e76\u4e0d\u663e\u8457\u7684\u4fe1\u9053\u6765\u4e00\u70b9\u70b9\u201d\u62bd\u53d6\u201d\u4fe1\u606f\u3002<\/p>\n<h2>\u8d85\u58f0\u6ce2<\/h2>\n<p>\u5373\u4fbf\u662f\u4e00\u53f0\u6ca1\u6709\u97f3\u54cd\u6216\u8005\u97f3\u9891\u8bbe\u5907\u7684\u8ba1\u7b97\u673a\uff0c\u4ecd\u7136\u53ef\u4ee5\u901a\u8fc7<a href=\"https:\/\/www.x-mol.com\/paper\/1257366034500706304\" target=\"_blank\" rel=\"noopener nofollow\">\u6539\u53d8\u7535\u6e90\u4f9b\u7535\u9891\u7387<\/a>\u7b49\u65b9\u5f0f\u53d1\u51fa20-24\u8d6b\u5179\u8303\u56f4\u5185\u7684\u58f0\u97f3\u3002\u6b64\u5916\uff0c\u4e00\u53f0\u6ca1\u6709\u72ec\u7acb\u9ea6\u514b\u98ce\u7684\u8bbe\u5907\u4e5f\u53ef\u80fd\u88ab\u7528\u6765\u76d1\u542c\uff0c\u56e0\u4e3a\u653b\u51fb\u8005\u53ef\u4ee5\u901a\u8fc7<a href=\"https:\/\/arxiv.org\/abs\/1611.07350\" target=\"_blank\" rel=\"noopener nofollow\">\u64cd\u7eb5\u626c\u58f0\u5668\u6216\u8005\u5934\u6234\u8033\u673a<\/a>\u4ece\u800c\u5b9e\u73b0\u540c\u6837\u7684\u529f\u80fd\u3002\u521a\u521a\u63d0\u5230\u7684\u58f0\u6ce2\u8303\u56f4\uff08\u51c6\u786e\u6765\u8bf4\u662f18-24\u8d6b\u5179\uff09\u4f4d\u4e8e\u4eba\u7c7b\u7684\u542c\u529b\u8303\u56f4\u4e4b\u5916\uff0c\u8fd9\u4e9b\u58f0\u6ce2\u6709\u5404\u79cd\u5404\u6837\u6709\u8da3\u7684\u7528\u9014\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u7528\u5176<a href=\"https:\/\/www.kaspersky.com\/blog\/ultrasound-attacks\/25549\/\" target=\"_blank\" rel=\"noopener nofollow\">\u5728\u5bb6\u4e2d\u201d\u5524\u9192\u201d\u667a\u80fd\u97f3\u54cd<\/a>\u3002<\/p>\n<p>\u5728\u672c\u6587\u7684\u60c5\u666f\u4e2d\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u901a\u8fc7\u6076\u610f\u8f6f\u4ef6\u6765\u611f\u67d3\u8ba1\u7b97\u673a\uff0c\u4ece\u800c\u5c06\u76ee\u6807\u4fe1\u606f\u7f16\u7801\u5e76\u901a\u8fc7\u8d85\u58f0\u6ce2\u6765\u4f20\u8f93\u3002\u7136\u540e\u653b\u51fb\u8005\u53ef\u4ee5\u4f7f\u7528\u9644\u8fd1\u53e6\u4e00\u53f0\u88ab\u611f\u67d3\u7684\u8bbe\u5907\uff08\u6bd4\u5982\u667a\u80fd\u624b\u673a\uff09\u63a5\u6536\u8d85\u58f0\u6ce2\uff0c\u5e76\u5c06\u4fe1\u606f\u4f20\u9001\u5230\u5916\u754c\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u7814\u7a76\u4eba\u5458\u8fd8\u53d1\u73b0\u4e86\u5176\u4ed6\u4e00\u4e9b\u5229\u7528<a href=\"https:\/\/arxiv.org\/abs\/1606.05915\" target=\"_blank\" rel=\"noopener nofollow\">\u98ce\u6247<\/a>\u58f0\u97f3\u548c<a href=\"https:\/\/arxiv.org\/abs\/1608.03431\" target=\"_blank\" rel=\"noopener nofollow\">\u786c\u76d8<\/a>\u58f0\u97f3\u7684\u653b\u51fb\u65b9\u5f0f\u3002<\/p>\n<h2>\u7535\u78c1<\/h2>\n<p>\u522b\u5fd8\u4e86\u6211\u4eec\u8fd8\u6709\u53e4\u8001\u7684\u7535\u78c1\u539f\u7406\u3002\u7535\u6d41\u53ef\u4ee5\u4ea7\u751f\u7535\u78c1\u573a\uff0c\u7535\u78c1\u573a\u53c8\u53ef\u4ee5\u88ab\u8f6c\u5316\u56de\u7535\u4fe1\u53f7\u3002\u901a\u8fc7\u63a7\u5236\u7535\u6d41\uff0c\u6211\u4eec\u53ef\u4ee5\u63a7\u5236\u5176\u5bf9\u5e94\u7684\u7535\u78c1\u573a\u3002\u638c\u63e1\u8fd9\u4e9b\u77e5\u8bc6\u4e4b\u540e\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u4f7f\u7528\u6076\u610f\u8f6f\u4ef6\u5411\u663e\u793a\u8bbe\u5907\u53d1\u9001\u4e00\u7cfb\u5217\u4fe1\u53f7\u4ece\u800c\u5c06\u663e\u793a\u5668\u7684\u7535\u7f06\u8f6c\u5316\u4e3a\u5929\u7ebf\u3002\u901a\u8fc7\u6539\u53d8\u53d1\u9001\u5b57\u8282\u7684\u6570\u91cf\u548c\u9891\u7387\uff0c\u653b\u51fb\u8005\u76f8\u5f53\u4e8e\u5236\u4f5c\u4e86\u4e00\u4e2a\u65e0\u7ebf\u7535\u53d1\u5c04\u5668\uff0c\u5176\u53d1\u51fa\u7684\u4fe1\u53f7\u53ef\u4ee5\u7528\u8c03\u9891\u63a5\u6536\u5668\u6765\u63a5\u6536\u3002<a href=\"https:\/\/arxiv.org\/abs\/1411.0237\" target=\"_blank\" rel=\"noopener nofollow\">AirHopper<\/a>\u4f7f\u7528\u7684\u5c31\u662f\u8fd9\u4e2a\u4f0e\u4fe9\u3002<\/p>\n<p>\u8fd8\u6709\u4e00\u79cd\u653b\u51fb\u624b\u6bb5\uff0c\u653b\u51fb\u8005\u4f7f\u7528<a href=\"https:\/\/www.usenix.org\/node\/190937\" target=\"_blank\" rel=\"noopener nofollow\">GSMem<\/a>\u6076\u610f\u8f6f\u4ef6\u6765\u5165\u4fb5\u8ba1\u7b97\u673a\u5185\u5b58\u603b\u7ebf\u5e76\u5229\u7528\u5176\u53d1\u5c04\u4fe1\u53f7\u3002\u548cAirHopper\u7c7b\u4f3c\uff0c\u8fd9\u79cd\u6076\u610f\u8f6f\u4ef6\u53ef\u4ee5\u5411\u5185\u5b58\u603b\u7ebf\u53d1\u9001\u7279\u5b9a\u5e8f\u5217\u76840\u548c1\u6bd4\u7279\uff0c\u8fdb\u800c\u4f7f\u5176\u5468\u8fb9\u7535\u78c1\u8f90\u5c04\u4ea7\u751f\u53d8\u5316\u3002\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u8fd9\u79cd\u53d8\u5316\u6765\u7f16\u7801\u4fe1\u606f\uff0c\u7136\u540e\u4f7f\u7528\u4e00\u90e8\u652f\u6301GSM\uff0cUMTS\u6216\u8005LTE\u9891\u5e26\u7684\u624b\u673a\u6765\u63a5\u53d7\u4fe1\u53f7\uff0c\u63a5\u6536\u4fe1\u53f7\u7684\u624b\u673a\u751a\u81f3\u4e0d\u9700\u8981\u5185\u7f6e\u8c03\u9891\u65e0\u7ebf\u7535\u3002<\/p>\n<p>\u6211\u4eec\u60f3\u8868\u8fbe\u8bf4\u660e\u7684\u9053\u7406\u5341\u5206\u660e\u786e\uff1a\u8ba1\u7b97\u673a\u5185\u90e8\u51e0\u4e4e\u4efb\u4f55\u7ec4\u4ef6\u90fd\u53ef\u4ee5\u7528\u4f5c\u5929\u7ebf\u3002\u76ee\u524d\u8fd8\u6709\u4e00\u4e9b\u7814\u7a76\u5c1d\u8bd5\u5229\u7528\u5176\u4ed6\u90e8\u4ef6\u6765\u4f20\u8f93\u6570\u636e\uff0c\u5305\u62ec<a href=\"https:\/\/arxiv.org\/abs\/1608.08397\" target=\"_blank\" rel=\"noopener nofollow\">USB\u63a5\u53e3<\/a>\uff0c<a href=\"https:\/\/github.com\/funtenna\" target=\"_blank\" rel=\"noopener nofollow\">\u901a\u7528\u8f93\u5165\u8f93\u51fa\u63a5\u53e3<\/a>\u548c<a href=\"https:\/\/arxiv.org\/abs\/1804.04014\" target=\"_blank\" rel=\"noopener nofollow\">\u7535\u6e90\u7ebf<\/a>\u7b49\u7b49\u3002<\/p>\n<h2>\u78c1<\/h2>\n<p>\u6cd5\u62c9\u7b2c\u7b3c\uff08Friday Cage\uff09\u901a\u5e38\u88ab\u8ba4\u4e3a\u662f\u975e\u5e38\u53ef\u9760\u7684\u4fdd\u62a4\u65b9\u5f0f\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u9694\u7edd\u7535\u78c1\u8f90\u5c04\u3002\u800c\u57fa\u4e8e\u78c1\u6027\u7684\u653b\u51fb\u65b9\u5f0f\u6709\u4e00\u4e2a\u663e\u8457\u7279\u70b9\uff0c\u90a3\u5c31\u662f\u5373\u4fbf\u5728\u6cd5\u62c9\u7b2c\u7b3c\u4e2d\u5b83\u4eec\u4e5f\u53ef\u4ee5\u751f\u6548\u3002<\/p>\n<p><a href=\"https:\/\/arxiv.org\/abs\/1802.02700\" target=\"_blank\" rel=\"noopener nofollow\">\u4f7f\u7528\u57fa\u4e8e\u78c1\u6027\u7684\u653b\u51fb\u65b9\u5f0f\u6765\u7a83\u53d6\u6570\u636e<\/a>\u65f6\uff0c\u653b\u51fb\u8005\u5229\u7528\u7684\u662fCPU\u4ea7\u751f\u7684\u9ad8\u9891\u78c1\u8f90\u5c04\uff0c\u8fd9\u79cd\u8f90\u5c04\u53ef\u4ee5\u7a7f\u900f\u91d1\u5c5e\u5916\u58f3\u3002\u6307\u5357\u9488\u57fa\u4e8e\u8fd9\u79cd\u78c1\u8f90\u5c04\u5de5\u4f5c\uff0c\u56e0\u6b64\u5b83\u53ef\u4ee5\u4e0d\u53d7\u6cd5\u62c9\u7b2c\u7b3c\u5f71\u54cd\u3002\u7814\u7a76\u4eba\u5458\u53d1\u73b0\uff0c\u53ef\u4ee5\u901a\u8fc7\u8f6f\u4ef6\u6765\u63a7\u5236\u8ba1\u7b97\u673a\u5904\u7406\u5668\u6838\u5fc3\u7684\u8d1f\u8f7d\uff0c\u4ece\u800c\u8fdb\u4e00\u6b65\u63a7\u5236\u5b83\u7684\u78c1\u8f90\u5c04\u3002\u4ed6\u4eec\u58f0\u79f0\u4ec5\u9700\u8981\u5728\u6cd5\u62c9\u7b2c\u7b3c1.5\u7c73\uff08\u62165\u82f1\u5c3a\uff09\u7684\u8303\u56f4\u5185\u653e\u7f6e\u4e00\u4e2a\u63a5\u6536\u88c5\u7f6e\u5373\u53ef\u63a5\u6536\u4fe1\u53f7\u3002\u5728\u5b9e\u9a8c\u4e2d\uff0c\u4ed6\u4eec\u7684\u5177\u4f53\u505a\u6cd5\u662f\u5c06\u78c1\u6027\u4f20\u611f\u5668\u8fde\u63a5\u5230\u65c1\u8fb9\u8ba1\u7b97\u673a\u7684\u4e32\u884c\u7aef\u53e3\u4f5c\u4e3a\u63a5\u6536\u88c5\u7f6e\u3002<\/p>\n<h2>\u5149<\/h2>\n<p>\u4efb\u4f55\u8ba1\u7b97\u673a\u90fd\u6709LED\u706f\u8fd9\u4e2a\u7ec4\u4ef6\uff0c\u5373\u4fbf\u662f\u7269\u7406\u9694\u79bb\u7684\u8ba1\u7b97\u673a\u4e5f\u4e0d\u4f8b\u5916\u3002\u653b\u51fb\u8005\u540c\u6837\u53ef\u4ee5\u901a\u8fc7\u6076\u610f\u8f6f\u4ef6\u63a7\u5236LED\u706f\u7684\u95ea\u70c1\uff0c\u7136\u540e\u4ece\u7269\u7406\u9694\u79bb\u7684\u8ba1\u7b97\u673a\u4e2d\u7a83\u53d6\u673a\u5bc6\u4fe1\u606f\u3002<\/p>\n<p>\u653b\u51fb\u8005\u53ef\u4ee5\u5165\u4fb5\u5ba4\u5185\u7684\u76d1\u63a7\u6444\u50cf\u5934\uff0c\u4ece\u800c\u6355\u83b7LED\u706f\u7684\u95ea\u70c1\u6240\u5305\u542b\u7684\u4fe1\u606f\uff0c\u8fd9\u6b63\u662f<a href=\"https:\/\/www.springerprofessional.de\/led-it-go-leaking-a-lot-of-data-from-air-gapped-computers-via-th\/12476142\" target=\"_blank\" rel=\"noopener nofollow\">LED-it-GO<\/a>\u548c<a href=\"https:\/\/ieeexplore.ieee.org\/document\/8514196\" target=\"_blank\" rel=\"noopener nofollow\">xLED<\/a>\u7b49\u7684\u5de5\u4f5c\u539f\u7406\u3002\u81f3\u4e8e<a href=\"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0167404818307193\" target=\"_blank\" rel=\"noopener nofollow\">aIR-Jumper<\/a>\uff0c\u5b83\u65e2\u628a\u6444\u50cf\u5934\u7528\u4e8e\u6e17\u5165\u4e5f\u5c06\u5176\u7528\u4e8e\u6e17\u51fa\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u6444\u50cf\u5934\u53ef\u4ee5\u540c\u65f6\u63a5\u6536\u6216\u8005\u53d1\u51fa\u4eba\u773c\u4e0d\u53ef\u89c1\u7684\u7ea2\u5916\u8f90\u5c04\u3002<\/p>\n<h2>\u70ed\u529b<\/h2>\n<p>\u7269\u7406\u9694\u79bb\u7684\u8ba1\u7b97\u673a\u4e2d\u8fd8\u6709\u4e00\u79cd\u610f\u60f3\u4e0d\u5230\u7684\u6e20\u9053\u53ef\u4ee5\u7528\u6765\u4f20\u8f93\u6570\u636e\uff0c\u90a3\u5c31\u662f\u70ed\u91cf\u3002\u8ba1\u7b97\u673a\u7684\u5904\u7406\u5668\uff0c\u663e\u5361\uff0c\u786c\u76d8\u548c\u5404\u79cd\u5916\u56f4\u8bbe\u5907\u7b49\u7edd\u5927\u591a\u6570\u7ec4\u4ef6\u90fd\u53ef\u4ee5\u4f7f\u5176\u5185\u90e8\u7a7a\u6c14\u53d8\u70ed\u3002\u800c\u4e14\u8ba1\u7b97\u673a\u4e5f\u5185\u7f6e\u6709\u6e29\u5ea6\u4f20\u611f\u5668\u6765\u9632\u6b62\u673a\u5668\u8fc7\u70ed\u3002<\/p>\n<p>\u5982\u679c\u53ef\u4ee5\u4f7f\u7528\u6076\u610f\u8f6f\u4ef6\u6765\u6539\u53d8\u4e00\u53f0\u7269\u7406\u9694\u79bb\u4e0b\u7684\u8ba1\u7b97\u673a\u7684\u6e29\u5ea6\uff0c\u90a3\u4e48\u4fbf\u53ef\u4ee5\u4f7f\u7528\u53e6\u4e00\u53f0\u8054\u7f51\u7684\u8bbe\u5907\u8bb0\u5f55\u4e0b\u6e29\u5ea6\u7684\u53d8\u5316\u5e76\u5c06\u5176\u8f6c\u5316\u4e3a\u66f4\u6709\u610f\u4e49\u7684\u6570\u636e\uff0c\u7136\u540e\u4f20\u9001\u51fa\u6765\u3002\u9700\u8981\u8bf4\u660e\u7684\u662f\uff0c\u5982\u679c\u4e24\u53f0\u8ba1\u7b97\u673a\u60f3\u8981\u901a\u8fc7\u70ed\u4fe1\u53f7\u6765\u4ea4\u4e92\uff0c\u4ed6\u4eec\u5fc5\u987b\u5341\u5206\u63a5\u8fd1\uff0c\u8ddd\u79bb\u5fc5\u987b\u572840\u516c\u5206\u6216\u800516\u82f1\u5bf8\u4e4b\u5185\u3002<a href=\"http:\/\/ieeexplore.ieee.org\/document\/7243739\/\" target=\"_blank\" rel=\"noopener 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