{"id":1437,"date":"2016-11-09T02:40:36","date_gmt":"2016-11-09T02:40:36","guid":{"rendered":"https:\/\/www.inforsec.org\/wp\/?p=1437"},"modified":"2016-11-09T03:24:45","modified_gmt":"2016-11-09T03:24:45","slug":"%e5%b8%a6%e4%bd%a0%e8%b5%b0%e8%bf%9b%e7%bb%b4%e4%b9%9f%e7%ba%b3%e7%89%88%e7%9a%84ccs2016%ef%bc%88%e7%8e%b0%e5%9c%ba%e6%8a%a5%e5%91%8a%e7%82%b9%e8%af%84%e4%b8%80%ef%bc%89","status":"publish","type":"post","link":"http:\/\/202.112.238.40\/wp\/?p=1437","title":{"rendered":"\u5e26\u4f60\u8d70\u8fdb\u7ef4\u4e5f\u7eb3\u7248\u7684CCS2016\uff08\u73b0\u573a\u62a5\u544a\u70b9\u8bc4\u4e00\uff09"},"content":{"rendered":"<p>\u7f16\u8005\u6309\uff1a<br \/>\nACM Conference on Computer and Communications Security (CCS)\u00a0\u662f\u7cfb\u7edf\u548c\u7f51\u7edc\u5b89\u5168\u9886\u57df\u7684\u56db\u5927\u9876\u7ea7\u5b66\u672f\u4f1a\u8bae\uff08BIG4\uff09\u4e4b\u4e00\uff0c\u4e00\u822c\u5728\u6bcf\u5e74\u7684\u5341\u6708\u4efd\u4e3e\u884c\uff0c\u5730\u70b9\u4e0d\u5b9a\u3002\u4eca\u5e74\u7684CCS\uff08\u7b2c23\u5c4a\uff09\u4e8e10\u670824-28\u53f7\u65e5\u5965\u5730\u5229\u7684\u9996\u90fd\u7ef4\u4e5f\u7eb3\u4e3e\u884c\u3002\u4f1a\u8bae\u5730\u70b9\u9009\u5728\u5965\u5730\u5229\u603b\u7edf\u5b98\u90b8\u6240\u5728\u7684\u970d\u592b\u5821\u5bab\u6bbf(Hofburg Palace) \u3002<\/p>\n<p>CCS\u7684\u4e3b\u4f1a\u662f\u572810\u670825\u300126\u548c27\u65e5\u4e09\u5929\u3002\u4ece831\u7bc7\u6295\u7a3f\u4e2d\uff0c\u5f55\u53d6\u4e86137\u7bc7\u8bba\u6587\uff0c\u5f55\u53d6\u7387\u4e3a16.5%\u3002 \u4f1a\u8bae\u7684\u7b2c\u4e00\u5929\uff0824\u65e5\uff09\u548c\u6700\u540e\u4e00\u5929\uff0828\u65e5\uff09\u5206\u522b\u662fpre-workshops \uff087\u4e2a\uff09\u548cpost-workshops\uff086\u4e2a\uff09\uff0c\u53c2\u4f1a\u603b\u4eba\u6570\u8d85\u8fc71000\u4eba\uff0c\u5927\u6982\u662f\u5b89\u5168\u9886\u57df\u6709\u53f2\u4ee5\u6765\uff0c\u89c4\u6a21\u6700\u5927\u7684\u4e00\u6b21\u4f1a\u8bae\u3002<\/p>\n<p>\u6211\u4eec\u5c06\u9646\u7eed\u5206\u4eab\u9999\u6e2f\u4e2d\u6587\u5927\u5b66\u5b59\u8317\u73c5\u535a\u58eb\u63d0\u4f9b\u7684\u53c2\u4f1a\u603b\u7ed3\u548c\u611f\u60f3\u3002\u5b59\u535a\u58eb\u7684\u603b\u7ed3\u56fe\u6587\u5e76\u8302\uff0c\u5185\u5bb9\u8be6\u7ec6\u3002\u65e2\u6709\u5bf9CCS\u76f8\u5173\u8bba\u6587\u7684\u6982\u8ff0\uff0c\u4e5f\u6709\u81ea\u5df1\u7684\u601d\u8003\u548c\u8bc4\u8bba\u3002\u76f8\u4fe1\u8fd9\u4e00\u7cfb\u5217\u6587\u7ae0\uff0c\u4f1a\u7ed9\u8bfb\u8005\u5e26\u6765\u8eab\u4e34\u5176\u5883\u7684\u53c2\u4f1a\u611f\u53d7\u3002<\/p>\n<p style=\"text-align: right;\">\u2014\u2014\u00a0\u4e07\u6d9b \u00a0 \u00a0\u534e\u4e3a\u52a0\u62ff\u5927<\/p>\n<p style=\"text-align: right;\"><!--more--><\/p>\n<p style=\"text-align: center;\"><strong>\u5e26\u4f60\u8d70\u8fdb\u7ef4\u4e5f\u7eb3\u7248\u7684CCS2016\uff08\u73b0\u573a\u62a5\u544a\u70b9\u8bc4\u4e00\uff09<\/strong><br \/>\n<strong>\u5b59\u8317\u73c5 \uff08\u9999\u6e2f\u4e2d\u6587\u5927\u5b66\uff09<\/strong><\/p>\n<p>\u4eca\u5e74\u7684 CCS \u662f\u6709\u53f2\u4ee5\u6765\u6700\u5927\u89c4\u6a21\uff0c\u53c2\u4f1a\u4eba\u6570\u6700\u591a\u7684\u4e00\u6b21\u3002\u6211\u6709\u5e78\u53c2\u52a0\u4e86\u8fd9\u4e00\u5c4a\u7684 CCS\uff0c\u5728\u201c\u97f3\u4e50\u4e4b\u90fd\u201d\u7ef4\u4e5f\u7eb3\u5ea6\u8fc7\u4e86\u516d\u5929\uff0c\u53c2\u52a0\u4e86\u56db\u5929\u7684\u4f1a\u8bae\uff0c\u5728\u970d\u592b\u5821\u5bab\u6bbf\u4ecb\u7ecd\u6211\u4eec\u7684\u7cfb\u7edf\uff0c\u5728\u591a\u7459\u6cb3\u7554\u4eab\u53d7\u79cb\u65e5\u7684\u51c9\u723d\u3002\u8fd9\u51e0\u5929\u7684\u4f1a\u8bae\u611f\u89e6\u9887\u6df1\uff0c\u6211\u5c06\u628a\u8fd9\u6b21\u53c2\u4f1a\u7684\u6240\u89c1\u6240\u95fb\u6309\u7167\u65e5\u8bb0\u7684\u5f62\u5f0f\u7ed9\u8bb0\u5f55\u4e0b\u6765\uff0c\u4e2d\u95f4\u4f1a\u7a7f\u63d2\u6211\u5bf9\u4e8e\u79d1\u7814\u7684\u601d\u8003\u548c\u672a\u6765\u7684\u7545\u60f3\u3002<br \/>\n<strong>October 24: Pre-Conference Workshops (SPSM)<\/strong><br \/>\n<strong> Opening<\/strong><br \/>\nCCS pre-conferecen workshop \u4e00\u5929\u6709 7 \u4e2a workshops \u540c\u65f6\u5e76\u884c\uff0c\u6211\u4e3b\u8981\u5173\u5fc3 mobile security \u65b9\u5411\uff0c\u6240\u4ee5\u6211\u53c2\u52a0\u4e86 SPSM (6th Annual ACM CCS Workshop on Security and Privacy in Smartphones and Mobile Devices)\u3002<br \/>\nSession Chair Prof. Long Lu \u9996\u5148\u4ecb\u7ecd\u4e86\u4eca\u5e74 SPSM \u7684\u8bba\u6587\u63a5\u6536\u60c5\u51b5\uff0c\u4e00\u5171\u6709 31 \u7bc7\u6295\u7a3f\uff0c\u6765\u81ea 19 \u4e2a\u4e0d\u540c\u7684\u56fd\u5bb6\uff0c\u603b\u8ba1 92 \u4e2a reviews\uff0c\u6700\u540e\u63a5\u6536\u4e86 11 \u7bc7 regular paper \u548c 2 \u7bc7 short paper\u3002\u4e4b\u540e\uff0cLong \u4ecb\u7ecd\u4e86 SPSM \u8fd9\u4e2a workshop \u7684\u5386\u53f2\u60c5\u51b5\uff1a\u6e90\u4e8e 2011 \u5e74\u4e24\u4e2a\u4e0d\u540c\u7684 proposals\uff0c\u7136\u540e\u4e0d\u65ad\u7684\u58ee\u5927\u3002<br \/>\n\u6700\u540e Prof. William Enck \u4e0a\u53f0\u5ba3\u5e03\u4e0b\u4e00\u5e74\u7684\u8ba1\u5212\uff1a2017 \u5e74\uff0cSPSM \u5c06\u4e0d\u518d\u5355\u72ec\u4e3e\u529e workshop\uff0c\u5e76\u5165 ACM WiSec\u3002William \u89e3\u91ca\u4e86\u53d6\u6d88 SPSM\uff0c\u5e76\u5165 WiSec \u7684\u4e3b\u8981\u539f\u56e0\u662f 50% \u7684 SPSM \u6295\u7a3f\u90fd\u6765\u81ea WiSec recycle \u7684 paper\uff0c\u6240\u4ee5 SPSM \u548c WiSec \u7684\u6295\u7a3f\u6709\u5f88\u5927\u7684\u91cd\u53e0\uff0c\u4e3a\u4e86\u51cf\u5c11\u5ba1\u7a3f\u7684\u5de5\u4f5c\u91cf\uff0c\u7d22\u6027\u5e76\u5165 WiSec\u3002\u5176\u5b9e WiSec \u8fd9\u4e2a conference \u4e3b\u8981\u7684\u65b9\u5411\u5e94\u8be5\u662f wireless security\uff0c\u4f46\u662f\u968f\u7740\u540e\u6765 mobile (sysetm) security \u7684\u706b\u70ed\u53d1\u5c55\uff0cWiSec \u4e0a\u9762\u7684\u597d\u591a paper \u4e5f\u548c mobile security \u76f8\u5173\u4e86\u3002\u6211\u4e4b\u524d\u53c2\u52a0\u8fc7 2015 \u5e74\u5728\u7ebd\u7ea6\u4e3e\u529e\u7684 WiSec\uff0c\u5ba1\u7a3f\u8d28\u91cf\u5f88\u9ad8\uff0c\u8bba\u6587\u4e5f\u975e\u5e38\u6709\u8da3\uff0c\u4f1a\u8bae\u7ec4\u7ec7\u7684\u4e5f\u5f88\u597d\uff08\u4e3b\u529e\u65b9\u5e26\u6211\u4eec\u53bb\u770b\u6b4c\u5267\u53bb\u4e86\uff09\uff0c\u5efa\u8bae\u505a mobile security \u7684\u53ef\u4ee5\u8003\u8651\u4e00\u4e0b\u6295\u7a3f WiSec\u3002<\/p>\n<p style=\"text-align: left;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1449 size-full\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72471-2.png\" width=\"600\" height=\"450\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72471-2.png 600w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72471-2-300x225.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72471-2-200x150.png 200w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72471-2-150x113.png 150w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><em>spsm<\/em><\/p>\n<p style=\"text-align: left;\"><strong>Keynote<\/strong><br \/>\nKeynote \u8bf7\u4e86 Trustonic \u7684 Jan-Erik Ekberg\uff0c\u505a\u4e86 TrustZone \u548c SGX \u76f8\u5173\u7684\u4ecb\u7ecd\u3002\u5176\u4e2d\uff0c\u4ed6\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u65b0\u7684 TrustZone-M \u5728 IoT \u8bbe\u5907\u4e0a\u7684\u5e94\u7528\uff0c\u56e0\u4e3a IoT \u8bbe\u5907\u7684\u64cd\u4f5c\u7cfb\u7edf\u7b80\u5355\uff0cTEE \u7684\u91cd\u8981\u6027\u4e0d\u8a00\u800c\u55bb\u3002\u611f\u5174\u8da3\u7684\u53ef\u4ee5\u4e86\u89e3\u4e00\u4e0b TrustZone-M\uff0c\u672a\u6765 ARM-based \u7684 IoT \u8bbe\u5907\u53ef\u80fd\u90fd\u80fd\u7528\u4e0a\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1448\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72472-1.png\" alt=\"%e5%9b%be%e7%89%872\" width=\"600\" height=\"450\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72472-1.png 600w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72472-1-300x225.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72472-1-200x150.png 200w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72472-1-150x113.png 150w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p style=\"text-align: left;\">\u00a0<strong>Technical Session: Studies and Analyses<\/strong><br \/>\n\u5728\u8fd9 session \u91cc\u6709\u56db\u7bc7 paper\uff0c\u5206\u522b\u548c Samsung KNOX\u3001Android \u65f6\u95f4\u540c\u6b65\u670d\u52a1\u3001AndroidApp\u4f2a\u9020\u7528\u6237\u6d3b\u8dc3\u5ea6\uff0c\u4ee5\u53ca iOSApp\u5927\u89c4\u6a21\u7684\u5206\u6790\u6709\u5173\u3002\u4e0b\u9762\uff0c\u6211\u7b80\u5355\u4ecb\u7ecd\u4e00\u4e0b\u8fd9\u56db\u7bc7\u8bba\u6587\u3002<br \/>\n<strong>Secure Containers in Android: the Samsung KNOX Case Study<\/strong><br \/>\nby Uri Kanonov (Tel Aviv University), Avishai Wool (Tel Aviv University)<br \/>\n\u4e09\u661f KNOX \u662f\u57fa\u4e8e TrustZone \u7684App\u9694\u79bb\u6846\u67b6\uff0c\u53ea\u6709\u5728\u4e09\u661f\u624b\u673a\u4e0a\u624d\u53ef\u4ee5\u4f7f\u7528\uff0c\u56e0\u4e3a\u5e76\u4e0d\u662f\u5f00\u6e90\u7684\u6846\u67b6\uff0c\u6240\u4ee5\u6ca1\u6709\u5f88\u591a\u6587\u7ae0\u5206\u6790 KNOX \u7684\u6574\u4e2a\u7ed3\u6784\u6846\u67b6\u3002\u8fd9\u7bc7\u6587\u7ae0\u5206\u6790\u4e86 KNOX \u7684\u6846\u67b6\uff0c\u7136\u540e\u8ba8\u8bba\u4e86\u4e24\u79cd\u653b\u51fb\u65b9\u6cd5\u3002<br \/>\nKNOX \u81ea\u4e0a\u800c\u4e0b\u5305\u62ec\u4ee5\u4e0b\u51e0\u5c42\u5b89\u5168\u7ec4\u4ef6\uff1a<\/p>\n<p style=\"text-align: left; padding-left: 30px;\">\u2022SEAndroid: KNOX \u6709\u81ea\u5df1\u7684 SEAndroid policy \u6765\u9694\u79bb apps<br \/>\n\u2022TIMA: TrustZone-based Integrity Measurement Architecture\u3002TIMA \u5305\u62ec\u4e00\u4e2a PKM (Periodic Kernel Measurement) \u7ec4\u4ef6\uff0c\u6bcf\u5404\u4e00\u6bb5\u65f6\u95f4 PKM \u5c31\u4f1a\u68c0\u67e5 kernel \u4ee3\u7801\u548c\u6570\u636e\u7684 integrity\u3002\u5b83\u7684\u8be6\u7ec6\u7684\u68c0\u67e5\u5de5\u4f5c\u6d41\u7a0b\u6ca1\u6709\u6587\u6863\u8bb0\u5f55\u3002\u53e6\u5916\u4e00\u4e2a\u7ec4\u4ef6\u662f RKP (Real-time Kernel Protection)\u3002RKP \u53ef\u4ee5\u4fdd\u62a4\u8fd0\u884c\u65f6\u7684 page table \u53ea\u80fd\u5728 TrustZone \u7684 secure world \u4fee\u6539\uff0c\u5728 normal world \u53ea\u8bfb\u3002<br \/>\n\u2022TrustZone<br \/>\n\u2022Secure Boot: \u542f\u52a8\u65f6\u4f1a\u5728 TrustZone \u4e2d\u9a8c\u8bc1\u4ee3\u7801\u7684 integrity\uff0c\u786e\u4fdd\u542f\u52a8\u7684\u4ee3\u7801\u662f\u5b89\u5168\u53ef\u4fe1\u7684<br \/>\n\u4f5c\u8005\u901a\u8fc7\u4f7f\u7528 IDA Pro \u53cd\u7f16\u8bd1 native libraries\uff0c\u4f7f\u7528 Universal Deodexer, dex2jar, jd-gui \u53cd\u7f16\u8bd1 Android Java \u4ee3\u7801\uff0c\u5e76\u4e14\u4f7f\u7528 hooking \u65b9\u5f0f\u5bf9 KNOX \u8fdb\u884c\u52a8\u6001\u5206\u6790\u3002\u5f53\u7136\uff0c\u60f3\u8981\u52a8\u6001\u5206\u6790 KNOX \u9700\u8981\u5148 root\uff0c\u672c\u6587\u4f7f\u7528\u4e86 CVE-2013-6282 SafeRoot \u83b7\u5f97 root \u6743\u9650\u3002\u4e0b\u9762\u662f\u4f5c\u8005\u5f97\u51fa\u7684 KNOX \u6846\u67b6\uff1a<\/p>\n<p style=\"text-align: left; padding-left: 30px;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1440\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72473-1.png\" alt=\"%e5%9b%be%e7%89%873\" width=\"621\" height=\"346\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72473-1.png 621w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72473-1-300x167.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72473-1-250x139.png 250w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72473-1-360x200.png 360w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72473-1-150x84.png 150w\" sizes=\"auto, (max-width: 621px) 100vw, 621px\" \/><\/p>\n<p style=\"text-align: left;\"><em>knox<\/em><br \/>\n\u4e4b\u540e\uff0c\u672c\u6587\u5206\u6790\u4e86\u5728 KNOX 1.0 \u4e0a\u7684\u4e00\u4e9b\u653b\u51fb\uff1a<br \/>\n\u2022\u4e0d\u9700\u8981 root \u73af\u5883<\/p>\n<p style=\"text-align: left; padding-left: 30px;\">\u2013VPN Man-in-the-Middle: CVE-2016-1920<br \/>\n\u2013Clipboard: CVE-2016-3996<br \/>\n\u2013ADB<br \/>\n\u2013\u7ed3\u8bba\u662f\uff1a1. \u9700\u8981\u9650\u5236 secure container \u7684\u653b\u51fb\u9762\uff0c\u6bd4\u5982\u8bf4\u4e0d\u8981\u628a clipboardEx \u670d\u52a1\u66b4\u9732\u7ed9\u975e KNOX \u5e94\u7528\u30022. secure container \u548c insecure container \u7684\u5171\u4eab\u8d44\u6e90\u975e\u5e38\u5bb9\u6613\u6cc4\u6f0f\u4fe1\u606f\u3002\u4e0a\u9762\u4e09\u4e2a\u4f8b\u5b50\u611f\u5174\u8da3\u7684\u53ef\u4ee5\u8be6\u7ec6\u9605\u8bfb\u8fd9\u7bc7\u8bba\u6587\u3002<\/p>\n<p style=\"text-align: left;\">\u2022\u9700\u8981 Root \u7684\u653b\u51fb<\/p>\n<p style=\"text-align: left; padding-left: 30px;\">\u2013\u8bfb\u53d6 KNOX \u6570\u636e<br \/>\n\u2013eCryptFs Key: CVE-2016-1919<br \/>\n\u2013Keyboard \u76d1\u542c\uff1aCVE-2015-4640<br \/>\n\u2013\u9690\u85cf KNOX \u7684\u4fdd\u4fee bit \u6570\u636e<br \/>\n\u2013\u7ed3\u8bba\u662f\uff1asecure container \u9700\u8981\u5728 TrustZone \u91cc\u68c0\u6d4b\u662f\u5426\u5df2\u7ecf\u88ab root\u3002<\/p>\n<p style=\"text-align: left;\">\u672c\u6587\u8fd8\u5206\u6790\u4e86 KNOX 2.0 \u4e4b\u540e\u7684\u53d8\u5316\u3002<\/p>\n<p>\u603b\u7684\u6765\u8bf4\u8fd9\u7bc7\u6587\u7ae0\u8ba8\u8bba\u4e86\u4e09\u661f KNOX \u7684\u6846\u67b6\uff0c\u4ee5\u53ca\u5728\u8fd9\u4e9b\u5b89\u5168\u4fdd\u62a4\u4e0b\u80fd\u505a\u7684\u653b\u51fb\uff0c\u5efa\u8bae\u505a TrustZone \u7684\u4eba\u4e86\u89e3\u4e00\u4e0b\u73b0\u72b6\uff0c\u5728\u8bbe\u8ba1\u5b9e\u73b0\u7ec6\u8282\u4e2d\u591a\u6ce8\u610f\u3002<\/p>\n<p><strong>White Rabbit in Mobile: Effect of Unsecured Clock Source in Smartphones<\/strong><br \/>\nShinjo Park (TU Berlin\/Telekom Innovation Labs), Altaf Shaik (TU Berlin\/Telekom Innovation Labs), Ravishankar Borgaonkar (Oxford University), Jean-Pierre Seifert (TU Berlin\/Telekom Innovation Labs)<\/p>\n<p>\u672c\u6587\u4ecb\u7ecd\u4e86\u79fb\u52a8\u7cfb\u7edf\u7684\u65f6\u95f4\u540c\u6b65\u7cfb\u7edf\uff0c\u6587\u7ae0\u540d\u5b57 White Rabbit \u53d6\u81ea\u7231\u4e3d\u4e1d\u68a6\u6e38\u4ed9\u5883\u91cc\u4e4b\u4e00\u767d\u8272\u5154\u5b50\u4e0d\u77e5\u9053\u65f6\u95f4\uff08\u6211\u4e5f\u4e0d\u77e5\u9053\u6211\u4e3a\u5565\u5bf9\u8fd9\u4e2a\u5370\u8c61\u6df1\u523b\uff09\u3002<br \/>\n\u73b0\u4ee3\u7684\u79fb\u52a8\u64cd\u4f5c\u7cfb\u7edf\u4e00\u822c\u901a\u8fc7\u4ee5\u4e0b\u4e09\u79cd\u65b9\u5f0f\u540c\u6b65\u7cfb\u7edf\u65f6\u95f4\uff1a<br \/>\n\u2022NITZ: Network Identity and Time Zone\uff0c\u4e00\u822c\u662f\u624b\u673a\u7f51\u7edc\u63d0\u4f9b\uff082G\uff0c3G\u548c4G\uff09\u3002<br \/>\n\u2022NTP: Network Time Protocol\uff0c\u901a\u8fc7 WiFi \u7f51\u7edc\u94fe\u63a5 NTP \u670d\u52a1\u5668\u83b7\u53d6\u5f53\u524d\u65f6\u95f4\u3002<br \/>\n\u2022GNSS: Global Navigation Stellite System\uff0c\u901a\u8fc7 GPS \u83b7\u53d6\u3002<br \/>\n\u524d\u4e24\u79cd\u65b9\u5f0f\u4e00\u822c\u662f\u64cd\u4f5c\u7cfb\u7edf\u81ea\u52a8\u83b7\u53d6\u7684\uff0cGNSS \u662f\u624b\u52a8\u8fde\u63a5 GPS \u83b7\u53d6\u7684\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1441\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72474.png\" alt=\"%e5%9b%be%e7%89%874\" width=\"641\" height=\"282\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72474.png 641w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72474-300x132.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72474-250x110.png 250w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72474-150x66.png 150w\" sizes=\"auto, (max-width: 641px) 100vw, 641px\" \/><\/p>\n<p><em>white-rabbit<\/em><br \/>\n\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u7814\u7a76\u4e86 NITZ \u548c NTP \u4e24\u79cd\u65b9\u5f0f\uff0c\u5728\u4e0d\u540c\u7684\u64cd\u4f5c\u7cfb\u7edf\u4e0b\uff0c\u4e0d\u540c\u7684\u7f51\u7edc\u5236\u5f0f\u4e0b\uff0c\u4ee5\u53ca\u4e0d\u540c\u7684\u624b\u673a\u4e0a\u7684\u4e0d\u540c\u73b0\u8c61\u3002\u6bd4\u5982\u8bf4\u67d0\u4e9b\u79fb\u52a8\u8fd0\u8425\u5546\u5728 2G\/3G \u91cc\u63d0\u4f9b NITZ\uff0c\u4f46\u5728 4G \u91cc\u5374\u6ca1\u6709\u3002\u4e0d\u540c\u624b\u673a\u5bf9\u4e8e NTP \u548c NITZ \u4e24\u79cd\u65b9\u5f0f\u7684\u4f18\u5148\u7ea7\u4e5f\u4e0d\u540c\u3002\u8fd9\u4e9b\u4e0d\u540c\u5c31\u5f15\u53d1\u4e86\u4e00\u4e9b\u95ee\u9898\uff0c\u4f5c\u8005\u901a\u8fc7\u4f2a\u9020\u65f6\u95f4\uff0c\u89e6\u53d1\u4e86\u7cfb\u7edf\u7684\u4e00\u4e9b bug\u3002<br \/>\n\u4e4b\u524d iOS \u628a\u65f6\u95f4\u8c03\u5230 UNIX time \u4e4b\u524d\u5c31\u65e0\u6cd5\u5f00\u673a\u7684\u95ee\u9898\u5c31\u80fd\u901a\u8fc7 NTP \u4f2a\u9020\u65f6\u95f4\u3002\u6211\u731c\u4f5c\u8005\u770b\u5230\u4e86\u8fd9\u4e2a\u65b0\u95fb\uff0c\u60f3\u5230\u5206\u6790\u4e00\u4e0b\u5f53\u524d\u7684\u65f6\u95f4\u540c\u6b65\u7cfb\u7edf\uff0c\u6216\u8bb8\u4f1a\u6709\u6709\u8da3\u7684\u7ed3\u8bba\u3002\u603b\u7684\u6765\u8bf4\uff0c\u8fd9\u8fb9\u6587\u7ae0\u5206\u6790\u7684\u5f88\u5168\u9762\uff0c\u8fd8\u628a\u5404\u4e2a\u56fd\u5bb6\u7684\u8fd0\u8425\u5546\u4e0d\u540c\u5236\u5f0f\u5c1d\u8bd5\u4e86\u4e00\u4e0b\uff0c\u5de5\u4f5c\u91cf\u8fd8\u662f\u633a\u5927\u7684\u3002<\/p>\n<p><strong>What You See Isn&#8217;t Always What You Get: A Measurement Study of Usage Fraud on Android Apps<\/strong><br \/>\nWei Liu (Tsinghua University), Yueqian Zhang (Tsinghua University), Zhou Li (ACM Member), Haixin Duan (Tsinghua University)<br \/>\n\u8fd9\u7bc7\u6587\u7ae0\u662f\u6e05\u534e\u5927\u5b66\u6bb5\u6d77\u65b0\u8001\u5e08\u56e2\u961f\u7684\u7814\u7a76\u3002\u7531\u6bb5\u8001\u5e08\u7684\u5b66\u751f\u5218\u709c\u5ba3\u8bb2\u3002\u8be5\u6587\u9488\u5bf9\u4e2d\u56fd\u5e02\u573a\u4e0aApp\u4f2a\u9020\u6d3b\u8dc3\u5ea6\u505a\u7684 measurement study\u3002\u8d77\u56e0\u662f\u8354\u679dFM\u4e3a\u4e86\u4f2a\u9020\u7528\u6237\u6d3b\u8dc3\u5ea6\uff0c\u4f1a\u5728\u540e\u53f0\u5f00\u542f\u591a\u4e2a\u670d\u52a1\uff0c\u4f7f\u7528\u6237\u6570\u636e\u7edf\u8ba1\u5de5\u5177\u91cd\u590d\u7edf\u8ba1\u7528\u6237\u7684\u4ea4\u4e92\u6b21\u6570\uff0c\u4ece\u800c\u8ba9\u8354\u679dFM\u7684\u7528\u6237\u770b\u8d77\u6765\u5f88\u591a\u3002\u76ee\u7684\u561b\uff0c\u53ef\u80fd\u662f\u4e3a\u4e86\u4ee5\u6b64\u83b7\u5f97\u66f4\u591a\u7684\u8d44\u672c\u6295\u8d44\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1450\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72475-1.png\" alt=\"%e5%9b%be%e7%89%875\" width=\"600\" height=\"450\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72475-1.png 600w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72475-1-300x225.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72475-1-200x150.png 200w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72475-1-150x113.png 150w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u901a\u8fc7\u5c1d\u8bd5\u6b3a\u9a97\u73b0\u6709\u7684\u51e0\u4e2a\u6d41\u884c\u7684\u5206\u6790\u7cfb\u7edf\uff0c\u4f5c\u8005\u5f97\u51fa\u4e86\u4ee5\u4e0b\u7ed3\u8bba\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1443\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72476.png\" alt=\"%e5%9b%be%e7%89%876\" width=\"697\" height=\"337\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72476.png 697w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72476-300x145.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72476-250x121.png 250w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2016\/11\/\u56fe\u72476-150x73.png 150w\" sizes=\"auto, (max-width: 697px) 100vw, 697px\" \/><\/p>\n<p><em><i>usage-fraud<\/i><\/em><\/p>\n<p>\u4e00\u4e9b\u5206\u6790\u7cfb\u7edf\u53ea\u4f7f\u7528\u7b80\u5355\u7684 device ID \u4f5c\u4e3a\u7edf\u8ba1\u7528\u6237\u7684\u552f\u4e00\u6807\u793a\uff0c\u7a0d\u5fae\u590d\u6742\u70b9\u7684\u4f1a\u4f7f\u7528\u7b80\u5355\u7ec4\u5408\u53d8\u6362\uff0c\u8ba9\u4f2a\u9020\u6570\u636e\u53d8\u590d\u6742\u3002<\/p>\n<p>\u4f46\u662f\u65e0\u8bba\u600e\u4e48\u8bbe\u8ba1 in-device \u7684\u7edf\u8ba1\u7cfb\u7edf\uff0c\u90fd\u65e0\u6cd5\u907f\u514d\u4f2a\u9020\u6570\u636e\u3002\u6211\u8ba4\u4e3a\u670d\u52a1\u5546\u53ea\u80fd\u901a\u8fc7\u6570\u636e\u5206\u6790\uff0c\u68c0\u6d4b\u5f02\u5e38\u7684\u6570\u636e\u589e\u957f\u624d\u80fd\u53d1\u73b0\u8fd9\u79cd\u884c\u4e3a\uff0c\u4e5f\u7b97\u662f anomaly detection system \u7684\u4e00\u79cd\u3002\u4f1a\u8bae\u4e0a session chair \u95ee\u4e3a\u4ec0\u4e48\u8fd9\u79cd usage fraud \uff08\u53ea\uff09\u5728\u4e2d\u56fd\u53d1\u751f\uff0c\u522b\u7684\u56fd\u5bb6\u6ca1\u6709\u3002\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u6709\u8da3\u7684\u95ee\u9898\uff0c\u6211\u89c9\u5f97\u539f\u56e0\u53ef\u80fd\u662f\u4e2d\u56fd\u5e02\u573a\u7684\u540c\u8d28\u5316\u592a\u4e25\u91cd\uff0c\u6295\u8d44\u73af\u5883\u3001\u8206\u8bba\u73af\u5883\u66f4\u770b\u91cd\u7684\u662f\u7528\u6237\u6d3b\u8dc3\u5ea6\uff08DAU\uff09\u8fd9\u4e00\u4e2a\u6570\u5b57\u3002\u8fd9\u4e2a\u95ee\u9898\u4e0d\u7981\u8ba9\u6211\u60f3\u5230\uff0c\u662f\u4e0d\u662f\u8fd8\u6709\u5f88\u591a\u4e2d\u56fd\uff08\u53d1\u5c55\u4e2d\u56fd\u5bb6\uff09\u72ec\u6709\u7684\u5b89\u5168\u73b0\u8c61\u3001\u5b89\u5168\u95ee\u9898\u53ef\u4ee5\u6765\u505a\u4e00\u4e9b\u7814\u7a76\u5462\uff1f<\/p>\n<h4><strong><b>CRiOS: Toward Large-Scale iOS Application Analysis<\/b><\/strong><\/h4>\n<p>\u672c\u7bc7\u6587\u7ae0\u4e0b\u8f7d\u4e86 43,404 \u4e2a iOS \u5e94\u7528\uff0c\u5728\u8fd9\u4e9b\u5e94\u7528\u4e0a\u505a\u4e86\u4e00\u4e2a\u5927\u89c4\u6a21\u7684\u52a8\u6001\u5206\u6790\uff0c\u4e3b\u8981\u7ed3\u8bba\u662f\u5f88\u591a\u5e94\u7528\u7684\u8bc1\u4e66\u5feb\u8981\u5230\u671f\u6216\u8005\u5df2\u7ecf\u5230\u671f\u4e86\u3002\u672c\u6587\u8fd8\u63d0\u51fa\u4e86\u4e00\u79cd\u68c0\u6d4b\u7b2c\u4e09\u65b9 library \u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a Android \u4e0a\u9762\u7c7b\u4f3c\u7684\u65b9\u6cd5\u5df2\u7ecf\u6709\u5f88\u591a\u4e86\uff0c\u6211\u5c31\u4e0d\u8be6\u7ec6\u4ecb\u7ecd\u4e86\uff0c\u611f\u5174\u8da3\u7684\u53ef\u4ee5\u770b\u4e00\u4e0b\u8bba\u6587\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7f16\u8005\u6309\uff1a ACM Conference on Computer and Communications&#8230; <a class=\"continue-reading-link\" href=\"http:\/\/202.112.238.40\/wp\/?p=1437\"> Continue reading <span class=\"meta-nav\">&rarr; <\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-1437","post","type-post","status-publish","format-standard","hentry","category-research"],"_links":{"self":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1437","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1437"}],"version-history":[{"count":6,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1437\/revisions"}],"predecessor-version":[{"id":1452,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1437\/revisions\/1452"}],"wp:attachment":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1437"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1437"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}