{"id":481,"date":"2021-06-24T16:39:05","date_gmt":"2021-06-24T08:39:05","guid":{"rendered":"https:\/\/choson.lifenet.com.tw\/?p=481"},"modified":"2021-06-24T16:39:05","modified_gmt":"2021-06-24T08:39:05","slug":"ids-%e7%9a%84%e6%aa%a2%e6%b8%ac%e9%96%be%e5%80%bcthe-detection-threshold-of-ids","status":"publish","type":"post","link":"https:\/\/choson.lifenet.com.tw\/?p=481","title":{"rendered":"IDS \u7684\u6aa2\u6e2c\u95be\u503c(The detection threshold of IDS)"},"content":{"rendered":"\n

\u6df7\u6dc6\u77e9\u9663\u4e2d\u7684\u654f\u611f\u6027\u662f\u8a55\u4f30 IDS \u6027\u80fd\u7684\u5e38\u7528\u65b9\u6cd5\u3002
. \u4e00\u65e6 IDS \u767c\u9001\u8b66\u5831\uff0c\u5c31\u61c9\u8a72\u5c0d\u5176\u9032\u884c\u8abf\u67e5\u548c\u9a57\u8b49\uff0c\u4e26\u4e14\u5de5\u4f5c\u91cf\u6703\u589e\u52a0\u3002\u6e1b\u5c11\u8aa4\u5831\u7684\u6578\u91cf\u6e1b\u5c11\u4e86\u8abf\u67e5\u5de5\u4f5c\u91cf\u3002
. \u7136\u800c\uff0c\u6e1b\u5c11\u8aa4\u5831\u8b66\u5831\u53ef\u80fd\u6703\u589e\u52a0\u8aa4\u5831\u6848\u4f8b\uff0c\u5c0e\u81f4\u66f4\u591a\u7684\u96f6\u65e5\u6f0f\u6d1e\u5229\u7528\uff0c\u5229\u7528\u7d44\u7e54\u7372\u5229\u5bb3\u95dc\u897f\u4eba\u672a\u77e5\u7684\u6f0f\u6d1e\u9032\u884c\u653b\u64ca\u3002
. \u201c\u4e00\u822c\u4f86\u8aaa\uff0c\u63d0\u9ad8\u5165\u4fb5\u6aa2\u6e2c\u7cfb\u7d71\u7684\u9748\u654f\u5ea6\u6703\u5c0e\u81f4\u66f4\u9ad8\u7684\u8aa4\u5831\u7387\uff0c\u800c\u964d\u4f4e\u9748\u654f\u5ea6\u6703\u964d\u4f4e\u8aa4\u5831\u7387\u3002\u201d ( Chapple ) \u964d\u4f4e\u9019\u88e1\u7684\u201c\u654f\u611f\u5ea6\u201d\u53ef\u80fd\u662f\u6307\u914d\u7f6e IDS \u4ee5\u964d\u4f4e\u6aa2\u6e2c\u7684\u7a4d\u6975\u6027\u548c\u97ff\u61c9\u6027\u4e26\u767c\u9001\u66f4\u5c11\u7684\u8b66\u5831\u3002\u7136\u800c\uff0cIDS \u7cfb\u7d71\u7684\u654f\u611f\u5ea6\u7a76\u7adf\u662f\u591a\u5c11\uff1f\u4e8c\u5143\u5206\u985e\u4e2d\u9748\u654f\u5ea6\u7684\u64cd\u4f5c\u5b9a\u7fa9\u662fTP\/(TP+FN)\u3002\u964d\u4f4e\u9748\u654f\u5ea6\u610f\u5473\u8457 FN\uff08\u5047\u9670\u6027\uff09\u589e\u52a0\u3002
. \u9078\u9805 D \u5728\u4e8c\u5143\u5206\u985e\u5668\u4e2d\u6709\u610f\u7fa9\uff0c\u5982\u4e0b\u5716\u6240\u793a\u3002IDS\u7684\u6aa2\u6e2c\u95be\u503c\u662f\u5f71\u97ff\u9748\u654f\u5ea6\u7684\u5be6\u73fe\u53c3\u6578\uff0c\u5be6\u73fe\u65b9\u5f0f\u5404\u4e0d\u76f8\u540c\u3002\u57fa\u65bc\u7570\u5e38\u7684 IDS \u53ef\u4ee5\u63a1\u7528\u4e8c\u5143\u6216\u591a\u6a19\u7c64\u5206\u985e\u5668\/\u7b97\u6cd5\u4f86\u5c0d\u4e8b\u4ef6\u9032\u884c\u5206\u985e\uff0c\u4f8b\u5982 {Attack, Non-attack} \u6216 { Normal, Suspicious, Attack }\u3002\u7531\u65bc\u5b58\u5728\u5404\u7a2e\u985e\u578b\u7684\u57fa\u65bc\u7570\u5e38\u7684 IDS\uff0c\u56e0\u6b64\u5728\u6bcf\u7a2e\u7b97\u6cd5\u4e2d\u53ef\u80fd\u6703\u6216\u53ef\u80fd\u4e0d\u6703\u4f7f\u7528\u95be\u503c\u3002\u6b64\u5916\uff0c\u5728\u4e0d\u540c\u7b97\u6cd5\u4e2d\u63d0\u9ad8\u95be\u503c\u53ef\u80fd\u6703\u4ee5\u4e0d\u540c\u65b9\u5f0f\u5f71\u97ff\u9748\u654f\u5ea6\u3002
\"https:\/\/ithelp.ithome.com.tw\/upload\/images\/20210624\/20132160BYV7e3l2wX.png\"
-\u4e8c\u5143\u5206\u985e\u6a21\u578b\u7684\u5206\u6578\u5206\u4f48\uff08\u4f86\u6e90\uff1a\u4e9e\u99ac\u905c<\/a>\uff09<\/p>\n\n\n\n

S-IDS \u548c A-IDS<\/strong>
\u5165\u4fb5\u6aa2\u6e2c\u7cfb\u7d71\u6309\u6aa2\u6e2c\u65b9\u6cd5\u53ef\u5206\u70ba\u57fa\u65bc\u7c3d\u540d\uff08S-IDS\uff09\u548c\u57fa\u65bc\u7570\u5e38\uff08A-IDS\uff09\u3002S-IDS\u64c5\u9577\u6aa2\u6e2c\u5df2\u77e5\u653b\u64ca\uff0c\u800c A-IDS \u64c5\u9577\u672a\u77e5\u653b\u64ca\u3002\u7570\u5e38\uff0c\u53c8\u540d\u7570\u5e38\u503c\u3001\u65b0\u5947\u3001\u566a\u97f3\u3001\u504f\u5dee\u548c\u7570\u5e38\uff0c\u662f\u6307\u201c\u504f\u96e2\u6a19\u6e96\u3001\u6b63\u5e38\u6216\u9810\u671f\u7684\u6771\u897f\u201d\u3002\uff08\u8c37\u6b4c\uff09<\/a>
\u4e0b\u5716\u5f88\u597d\u5730\u7e3d\u7d50\u4e86\u7570\u5e38\u6aa2\u6e2c\u65b9\u6cd5\u3002\u4f46\u662f\uff0c\u8acb\u6ce8\u610f\u5b83\u6709\u4e00\u500b\u932f\u5b57\uff08\u7c3d\u540dIDS\u61c9\u8a72\u662f\u201cS-IDS\u201d\uff09\uff0c\u5927\u591a\u6578CISSP\u5b78\u7fd2\u6307\u5357\u5c07\u57fa\u65bc\u77e5\u8b58\u7684IDS\uff08K-IDS\uff09\u8996\u70ba\u8207\u7c3d\u540dIDS\uff08S-IDS\uff09\u76f8\u540c\u3002
\"https:\/\/ithelp.ithome.com.tw\/upload\/images\/20210624\/20132160clD74SmQxk.jpg\"
-Laszka\u3001Aron & Abbas\u3001Waseem & Sastry\u3001S & Vorobeychik\u3001Yevgeniy & Koutsoukos\u3001Xenofon\u3002(2016)\u3002\u5165\u4fb5\u6aa2\u6e2c\u7cfb\u7d71\u7684\u6700\u4f73\u95be\u503c\u300210.1145\/2898375.2898399\u3002<\/p>\n\n\n\n

\u5206\u985e(Classification)<\/strong>
\u5982\u679c\u4e8b\u4ef6\u6216\u6d41\u91cf\u662f\u4f7f\u7528\u4e8c\u5143\u5206\u985e\u5668\u7684\u653b\u64ca\uff0c\u5247 IDS \u53ef\u4ee5\u4f7f\u7528\u6a21\u578b\uff08\u5206\u985e\u5668\uff09\u4f86\u78ba\u5b9a\u4e8b\u4ef6\u6216\u6d41\u91cf\uff0c\u6216\u8005\u4f7f\u7528\u591a\u6a19\u7c64\u5206\u985e\u5668\u5c0d\u5176\u9032\u884c\u5206\u985e\uff0c\u4f8b\u5982\u6b63\u5e38\u3001\u53ef\u7591\u6216\u653b\u64ca\u3002\u5728\u5206\u985e\u904e\u7a0b\u4e2d\u53ef\u4ee5\u4f7f\u7528\u4f5c\u70ba\u6a21\u578b\u53c3\u6578\u7684\u95be\u503c\u3002
\u5c07\u9810\u6e2c\u6982\u7387\u6216\u8a55\u5206\u8f49\u63db\u70ba\u985e\u5225\u6a19\u7c64\u7684\u6c7a\u7b56\u7531\u7a31\u70ba\u201c\u6c7a\u7b56\u95be\u503c\u201d\u3001\u201c\u5224\u5225\u95be\u503c\u201d\u6216\u7c21\u7a31\u70ba\u201c\u95be\u503c\u201d\u7684\u53c3\u6578\u63a7\u5236\u3002\u5c0d\u65bc\u5728 0 \u6216 1 \u4e4b\u9593\u7684\u7bc4\u570d\u5167\u7684\u6a19\u6e96\u5316\u9810\u6e2c\u6982\u7387\u6216\u5206\u6578\uff0c\u95be\u503c\u7684\u9ed8\u8a8d\u503c\u70ba 0.5\u3002\uff08Brownlee<\/a>\uff09<\/p>\n\n\n\n

ROC\u66f2\u7dda(ROC Curve)<\/strong>
ROC \u66f2\u7dda\uff08\u63a5\u6536\u5668\u64cd\u4f5c\u7279\u6027\u66f2\u7dda\uff09\u662f\u986f\u793a\u5206\u985e\u6a21\u578b\u5728\u6240\u6709\u5206\u985e\u95be\u503c\u4e0b\u7684\u6027\u80fd\u7684\u5716\u8868\u3002\u8a72\u66f2\u7dda\u7e6a\u88fd\u4e86\u5169\u500b\u53c3\u6578\uff1a\u771f\u967d\u6027\u7387\u548c\u5047\u967d\u6027\u7387\u3002\uff08\u8c37\u6b4c\uff09<\/a>
\"https:\/\/ithelp.ithome.com.tw\/upload\/images\/20210624\/2013216061vIETP7gL.png\"
-\u8cc7\u6599\u4f86\u6e90\uff1a\u8c37\u6b4c<\/p>\n\n\n\n

\u6df7\u6dc6\u77e9\u9663(Confusion Matrix)<\/strong>
\u6df7\u6dc6\u77e9\u9663\u662f\u4e00\u7a2e\u8a55\u4f30 IDS \u4f7f\u7528\u7684\u6a21\u578b\u6027\u80fd\u7684\u5de5\u5177\u3002\u5b83\u5305\u542b\u6709\u95dc\u4f7f\u7528\u4e8c\u5143\u6216\u591a\u6a19\u7c64\u5206\u985e\u5668\u9032\u884c\u7684\u5be6\u969b\u548c\u9810\u6e2c\u5206\u985e\u7684\u4fe1\u606f\uff0c\u4f8b\u5982 {Attack, Non-attack} \u6216 { Normal, Suspicious, Attack }\u3002
\"https:\/\/ithelp.ithome.com.tw\/upload\/images\/20210624\/2013216084RUoTPUFu.jpg\"
-\u6df7\u6dc6\u77e9\u9663\uff08\u5716\u7247\u4f86\u6e90\uff1a\u6578\u64da\u79d1\u5b78\u548c\u6a5f\u5668\u5b78\u7fd2<\/a>\uff09
\"https:\/\/ithelp.ithome.com.tw\/upload\/images\/20210624\/20132160KkA5nGTp0S.jpg\"
-\u6df7\u6dc6\u77e9\u9663\u548c\u6c7a\u7b56\u6a39\uff08\u5716\u7247\u4f86\u6e90\uff1aJudy Shamoun-Baranes<\/a>\uff09<\/p>\n\n\n\n

\u53c3\u8003
. \u6e96\u78ba\u7387\u548c\u53ec\u56de\u7387<\/a>
. \u654f\u611f\u6027\u548c\u7279\u7570\u6027<\/a>
. \u7cbe\u78ba\u53ec\u56de<\/a>
. \u5165\u4fb5\u6aa2\u6e2c\u7cfb\u7d71\u7684\u6700\u4f73\u95be\u503c<\/a>
. \u5165\u4fb5\u6aa2\u6e2c\u7cfb\u7d71 \u2013 IDS \u6027\u80fd\u8abf\u512a (YouTube)<\/a>
. \u7db2\u7d61\u5165\u4fb5\u6aa2\u6e2c\u7cfb\u7d71\uff1a\u6a5f\u5668\u5b78\u7fd2\u548c\u6df1\u5ea6\u5b78\u7fd2\u65b9\u6cd5\u7684\u7cfb\u7d71\u7814\u7a76<\/a>
. \u5927\u6578\u64da\u74b0\u5883\u4e0b\u4f7f\u7528\u6a5f\u5668\u5b78\u7fd2\u7b97\u6cd5\u7684\u5165\u4fb5\u6aa2\u6e2c\u6a21\u578b<\/a>
. \u6a5f\u5668\u5b78\u7fd2\u4e2d\u7684\u5206\u985e\u7b97\u6cd5\uff1a\u5b83\u5011\u662f\u5982\u4f55\u5de5\u4f5c\u7684<\/a>
. 7\u7a2e\u5206\u985e\u7b97\u6cd5<\/a>
. \u7d71\u8a08\u7570\u5e38\u6aa2\u6e2c<\/a>
. \u7570\u5e38\u6aa2\u6e2c<\/a>
. \u9748\u654f\u5ea6\u3001\u7279\u7570\u6027\u3001\u6e96\u78ba\u6027\u3001\u76f8\u95dc\u7f6e\u4fe1\u5340\u9593\u548c ROC \u5206\u6790\u8207\u5be6\u7528 SAS\u00ae \u5be6\u65bd<\/a>
. \u8a55\u4f30\u548c\u8abf\u6574\u5165\u4fb5\u6aa2\u6e2c\u7cfb\u7d71<\/a>
. \u4ec0\u9ebc\u662f\u5165\u4fb5\u6aa2\u6e2c\u7cfb\u7d71\uff1f\u6700\u65b0\u985e\u578b\u548c\u5de5\u5177<\/a>
. \u4e0d\u5e73\u8861\u5206\u985e\u7684\u8a55\u4f30\u6307\u6a19\u4e4b\u65c5<\/a>
. \u4e0d\u5e73\u8861\u5206\u985e\u7684\u95be\u503c\u79fb\u52d5\u7c21\u4ecb<\/a>
. \u591a\u6a19\u7c64\u5206\u985e\u7684\u95be\u503c\u9078\u64c7\u7814\u7a76<\/a>
. \u5206\u985e\uff1a\u95be\u503c\uff08\u8c37\u6b4c\uff09<\/a>
. \u591a\u6a19\u7c64\u5206\u985e<\/a>
. \u591a\u985e\u5206\u985e\uff08\u4e9e\u99ac\u905c\uff09<\/a>
. \u4e8c\u5143\u5206\u985e\uff08\u4e9e\u99ac\u905c\uff09<\/a>
. \u5728 scikit-learn \u4e2d\u5fae\u8abf\u5206\u985e\u5668<\/a>
. \u6a5f\u5668\u5b78\u7fd2\uff1a\u795e\u7d93\u7db2\u7d61<\/a><\/p>\n\n\n\n

\u8cc7\u6599\u4f86\u6e90\uff1a Wentz Wu QOTD-20210406<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u6df7\u6dc6\u77e9\u9663\u4e2d\u7684\u654f\u611f\u6027\u662f\u8a55\u4f30 IDS \u6027\u80fd\u7684\u5e38\u7528\u65b9\u6cd5\u3002. \u4e00\u65e6 IDS \u767c\u9001\u8b66\u5831\uff0c\u5c31\u61c9\u8a72\u5c0d\u5176\u9032\u884c\u8abf\u67e5\u548c\u9a57\u8b49\uff0c\u4e26\u4e14\u5de5 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":true,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-481","post","type-post","status-publish","format-standard","hentry","category-cisspcertified-information-systems-security-professional"],"_links":{"self":[{"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/481","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=481"}],"version-history":[{"count":1,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/481\/revisions"}],"predecessor-version":[{"id":482,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/481\/revisions\/482"}],"wp:attachment":[{"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=481"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=481"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}