{"id":49541,"date":"2017-04-01T09:00:14","date_gmt":"2017-04-01T01:00:14","guid":{"rendered":"https:\/\/blog.trendmicro.com.tw\/?p=49541"},"modified":"2017-05-09T17:15:47","modified_gmt":"2017-05-09T09:15:47","slug":"%e6%99%ba%e6%85%a7%e5%8c%96%e7%99%bd%e5%90%8d%e5%96%ae%e4%bd%bf%e7%94%a8%e5%b1%80%e9%83%a8%e6%95%8f%e6%84%9f%e5%93%88%e5%b8%8clocality-sensitive-hashing","status":"publish","type":"post","link":"https:\/\/blog.trendmicro.com.tw\/?p=49541","title":{"rendered":"\u667a\u6167\u5316\u767d\u540d\u55ae\u4f7f\u7528\u5c40\u90e8\u654f\u611f\u54c8\u5e0c(Locality Sensitive Hashing)"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/blog.trendmicro.com\/trendlabs-security-intelligence\/files\/2017\/03\/feature_TLSH3.jpg\" width=\"400\" height=\"400\" \/><\/p>\n<p>\u5c40\u90e8\u654f\u611f\u54c8\u5e0c\uff08Locality Sensitive Hashing\uff0cLSH\uff09\u662f\u4e00\u7a2e\u4f5c\u70ba\u53ef\u64f4\u5c55\uff0c\u8fd1\u4f3c\u6700\u8fd1\u9130\u641c\u5c0b\u7269\u4ef6\u7684\u6f14\u7b97\u6cd5\u3002LSH\u53ef\u4ee5\u9810\u904b\u7b97\u4e00\u500b\u54c8\u5e0c\uff08Hash\uff09\u4f86\u8ddf\u53e6\u4e00\u54c8\u5e0c\uff08Hash\uff09\u4f5c\u5feb\u901f\u6bd4\u8f03\u4ee5\u5224\u65b7\u5b83\u5011\u7684\u76f8\u4f3c\u5ea6\u3002LSH \u7684\u5be6\u969b\u61c9\u7528\u4e4b\u4e00\u662f\u7528\u4f86\u512a\u5316\u8cc7\u6599\u8655\u7406\u548c\u5206\u6790\u3002\u4e00\u500b\u4f8b\u5b50\u662f\u4ea4\u901a\u7db2\u8def\u516c\u53f8Uber\u5c07LSH<a href=\"https:\/\/spark-summit.org\/2016\/events\/locality-sensitive-hashing-by-spark\/\">\u5be6\u4f5c<\/a>\u5728\u5b83\u5011\u7684\u67b6\u69cb\u4e2d\uff0c\u7528\u4f86\u8655\u7406\u8cc7\u6599\u4ee5\u5224\u65b7\u884c\u7a0b\u6709\u91cd\u758a\u7684\u8def\u7dda\u4ee5\u6e1b\u5c11GPS\u8cc7\u6599\u7684\u4e0d\u4e00\u81f4\u3002\u8da8\u52e2\u79d1\u6280\u5f9e2009\u5e74\u958b\u59cb\u5c31\u4e00\u76f4\u5728\u6b64\u9818\u57df\u9032\u884c\u7a4d\u6975\u7814\u7a76\u4e26\u767c\u8868\u4e86\u5831\u544a\u3002\u57282013\u5e74\uff0c<a href=\"https:\/\/github.com\/trendmicro\/tlsh\/\">\u6211\u5011\u958b\u653e\u539f\u59cb\u78bc\u4e86\u4e00\u5957\u9069\u5408\u7528\u5728\u5b89\u5168\u89e3\u6c7a\u65b9\u6848\u7684 LSH\u5be6\u4f5c<\/a>\uff1a\u8da8\u52e2\u79d1\u6280\u5c40\u90e8\u654f\u611f\u54c8\u5e0c\uff08TLSH\uff09\u3002<\/p>\n<p>TLSH\u662fLSH\u7684\u4e00\u7a2e\u4f5c\u6cd5\uff0c\u53ef\u4ee5\u7528\u5728\u767d\u540d\u55ae\u6a5f\u5668\u5b78\u7fd2\u64f4\u5c55\u7684\u6a21\u7cca\u54c8\u5e0c\uff08fuzzy hashing\uff09\u3002TLSH\u53ef\u4ee5\u751f\u6210\u7528\u4f86\u5206\u6790\u76f8\u4f3c\u6027\u7684\u54c8\u5e0c\uff08Hash\uff09\u503c\u3002TLSH\u6839\u64da\u8207\u5df2\u77e5\u6b63\u5e38\u6a94\u6848\u7684\u76f8\u4f3c\u5ea6\u4f86\u5354\u52a9\u5224\u65b7\u662f\u5426\u80fd\u5920\u5728\u7cfb\u7d71\u4e0a\u88ab\u5b89\u5168\u5730\u57f7\u884c\u3002\u6bd4\u65b9\u8aaa\u540c\u4e00\u61c9\u7528\u7a0b\u5f0f\u4e0d\u540c\u7248\u672c\u7684\u6578\u5343\u500b\u54c8\u5e0c\uff08Hash\uff09\u503c\u53ef\u4ee5\u900f\u904e\u6392\u5e8f\u548c\u7c21\u5316\u4f86\u9032\u884c\u6bd4\u8f03\u548c\u9032\u4e00\u6b65\u5206\u6790\u3002\u5f8c\u8a2d\u8cc7\u6599\uff08metadata\uff09\u5982\u6191\u8b49\u53ef\u4ee5\u7528\u4f86\u78ba\u8a8d\u8a72\u6a94\u6848\u662f\u5426\u6b63\u5e38\u3002<\/p>\n<p><a href=\"https:\/\/github.com\/trendmicro\/tlsh\/blob\/master\/Attacking_LSH_and_Sim_Dig.pdf\">TLSH\u958b\u767c\u6642\u4e5f\u8003\u616e\u5230\u4e86\u4e3b\u52d5\u5408\u4f5c<\/a>\u3002\u6211\u5011\u63d0\u4f9b\u4e86\u958b\u653e\u539f\u59cb\u78bc\u5de5\u5177\u4f86\u5354\u52a9\u5b78\u7fd2\u3001\u8a55\u4f30\u548c\u9032\u4e00\u6b65\u52a0\u5f37TLSH\u3002\u6211\u5011\u4e5f\u6709\u5b9a\u671f\u66f4\u65b0\u7684\u5f8c\u7aef\u67e5\u8a62\u670d\u52d9\u8b93\u7368\u7acb\u5b89\u5168\u7814\u7a76\u4eba\u54e1\u548c\u5408\u4f5c\u5925\u4f34\u53ef\u4ee5\u7528\u4f86\u67e5\u8a62\u53ca\u6bd4\u8f03\u81ea\u5df1\u7684\u6a94\u6848\u8207\u597d\u6a94\u6848\u9593\u7684\u76f8\u4f3c\u5ea6\u3002<!--more--><\/p>\n<p><a href=\"https:\/\/www.trendmicro.com.tw\/edm\/Tracking.asp?id=2651&amp;name=20110916\">\u8da8\u52e2\u79d1\u6280<\/a>\u7684\u7814\u7a76\u986f\u793a\u8207LSH\u7684\u5176\u4ed6\u958b\u653e\u539f\u59cb\u78bc\u7248\u672c\u6bd4\u8d77\u4f86\uff0c<a href=\"https:\/\/github.com\/trendmicro\/tlsh\/blob\/master\/TLSH_CTC_final.pdf\">TLSH\u662f\u4e00\u7a2e\u9ad8\u7cbe\u5ea6\u7684\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09<\/a>\uff0c\u5728\u5176\u7bc4\u570d\u5167\u66f4\u52a0\u9748\u6d3b\uff0c<a href=\"https:\/\/github.com\/trendmicro\/tlsh\/blob\/master\/TLSH_CTC_final.pdf\">\u66f4\u4e0d\u6613\u88ab\u653b\u64ca<\/a>\uff0c\u4e26\u4e14\u5177\u5099\u5feb\u901f\u641c\u5c0b\u6a5f\u5236\u3002TLSH\u9084\u652f\u6301Linux\u6216Windows\uff08Visual Studio\uff09\u548cPython\u64f4\u5145\u74b0\u5883\u3002<\/p>\n<p><strong><em>TLSH<\/em><\/strong><strong><em>\u5982\u4f55\u5354\u52a9\u4f01\u696d?<\/em><\/strong><\/p>\n<p>\u5c0d\u4f01\u696d\u4f86\u8aaa\uff0c\u8fa8\u8b58\u74b0\u5883\u5167\u5b89\u5168\u7684\u61c9\u7528\u7a0b\u5f0f\u548c\u6a94\u6848\u662f\u4ef6\u91cd\u8981\u7684\u4efb\u52d9\u3002\u9019\u901a\u5e38\u662f\u7531IT\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u4f86\u5b8c\u6210\uff0c\u4ed6\u5011\u901a\u5e38\u662f\u5229\u7528\u767d\u540d\u55ae\uff08\u8ddf\u5df2\u77e5\u7684\u597d\u6a94\u6848\u5217\u8868\u9032\u884c\u6bd4\u8f03\uff09\u6216\u6191\u8b49\u7b49\u65b9\u6cd5\u3002\u4f46\u9019\u4e9b\u65b9\u6cd5\u90fd\u6709\u5c40\u9650\u6027\uff1b\u767d\u540d\u55ae\u89e3\u6c7a\u65b9\u6848\u53ef\u80fd\u6c92\u6709\u5b8c\u6574\u7684\u597d\u6a94\u6848\u5217\u8868\u3002\u8981\u4e00\u76f4\u8ffd\u8e64\u6b63\u5e38\u6a94\u6848\u7684\u5feb\u901f\u8b8a\u5316\u4e5f\u76f8\u7576\u7684\u56f0\u96e3\uff0c\u9019\u4e9b\u662f\u767d\u540d\u55ae\u89e3\u6c7a\u65b9\u6848\u7684\u5df2\u77e5\u554f\u984c\u3002\u800c\u53e6\u4e00\u65b9\u9762\uff0c\u53ea\u4f9d\u8cf4\u6191\u8b49\u53ef\u80fd\u6703\u51fa\u73fe\u5b89\u5168\u6f0f\u6d1e\uff0c\u56e0\u70ba\u9023<a href=\"https:\/\/krebsonsecurity.com\/2013\/02\/security-firm-bit9-hacked-used-to-spread-malware\/\">\u6191\u8b49\u57fa\u790e\u8a2d\u65bd\u4e5f\u53ef\u80fd\u6703\u88ab\u99ed<\/a>\u3002<\/p>\n<p>\u4f01\u696d\u53ef\u4ee5\u5c07\u6a94\u6848\u5206\u985e\u70ba\uff1a<\/p>\n<ul>\n<li>[\u7fa4\u7d44WL]\uff1a\u5728\u767d\u540d\u55ae\u5167\u7684\u6a94\u6848\u3002<\/li>\n<li>[\u7fa4\u7d44TC]\uff1a\u53ef\u4fe1\u4efb\u8edf\u9ad4\u5ee0\u5546\u6191\u8b49\u7c3d\u7ae0\u7684\u6a94\u6848\u3002<\/li>\n<\/ul>\n<p>\u4f01\u696d\u53ef\u4ee5\u63a1\u7528\u653f\u7b56\u5982\uff1a<\/p>\n<ol>\n<li>\u53ea\u5141\u8a31\u7fa4\u7d44WL\u5167\u7684\u6a94\u6848\u57f7\u884c\u3002<\/li>\n<li>\u53ea\u5141\u8a31\u7fa4\u7d44WL\u6216\u7fa4\u7d44TC\u5167\u7684\u6a94\u6848\u57f7\u884c\u3002<\/li>\n<\/ol>\n<p>\u653f\u7b56A\u53ef\u80fd\u904e\u65bc\u56b4\u683c\uff1b\u6a94\u6848\u66f4\u65b0\u548c\u5b89\u5168\u66f4\u65b0\u90fd\u53ef\u80fd\u6c92\u6709\u5728\u767d\u540d\u55ae\u5167\u3002\u653f\u7b56B\u53ef\u80fd\u6709\u554f\u984c\uff0c\u56e0\u70ba\u6191\u8b49\u7c3d\u767c\u55ae\u4f4d\u6703\u88ab\u60e1\u610f\u6feb\u7528\uff08\u60e1\u610f\u8edf\u9ad4\u53ef\u4ee5\u7528\u53d7\u4fe1\u4efb\u7684\u6191\u8b49\u767c\u884c\u55ae\u4f4d\u7c3d\u7ae0\uff09\uff0c\u6216\u8005\u662f\u6191\u8b49\u57fa\u790e\u8a2d\u65bd\u53ef\u80fd\u6703\u88ab\u99ed\u3002<\/p>\n<p>TLSH\u5141\u8a31\u6211\u5011\u5b9a\u7fa9\u53e6\u4e00\u7d44\u6a94\u6848\uff1a<\/p>\n<ul>\n<li>[\u7fa4\u7d44TLSH]\uff1a\u548c\u767d\u540d\u55ae\u5167\u6a94\u6848\u76f8\u4f3c\u7684\u6a94\u6848\uff0c\u4e26\u4e14\u8ddf\u76f8\u95dc\u6a94\u6848\u5177\u5099\u76f8\u540c\u7684\u6191\u8b49\u7c3d\u7ae0\u3002<\/li>\n<\/ul>\n<p>\u7fa4\u7d44TLSH\u9084\u662f\u53ef\u80fd\u6709\u60e1\u610f\u8edf\u9ad4\uff0c\u56e0\u70ba\u60e1\u610f\u5143\u4ef6\u53ef\u4ee5\u88ab\u63d2\u5165\u6b63\u5e38\u61c9\u7528\u7a0b\u5f0f\u3002\u76f8\u4f3c\u5ea6\u6e2c\u8a66\u53ef\u4ee5\u548c\u5f8c\u8a2d\u8cc7\u6599\uff08\u5982\u53d7\u4fe1\u4efb\u7684\u6191\u8b49\u7c3d\u7ae0\u55ae\u4f4d\uff09\u7d50\u5408\u4f86\u5224\u65b7\u8edf\u9ad4\u662f\u5426\u88ab\u5141\u8a31\u57f7\u884c\u3002\u9019\u6703\u5e36\u4f86\u65b0\u7684\u653f\u7b56\uff1a<\/p>\n<ol>\n<li>\u53ea\u5141\u8a31\uff08\u7fa4\u7d44WL\u5167\u6216\u662f[\u7fa4\u7d44TLSH,\u7fa4\u7d44TC]\u4ea4\u96c6\uff09\u6a94\u6848\u57f7\u884c<\/li>\n<\/ol>\n<p>\u7576\u52a0\u5165\u5230\u767d\u540d\u55ae\u7cfb\u7d71\uff0cTLSH\u53ef\u4ee5\u8ddf\u4e0a\u8edf\u9ad4\u7684\u5feb\u901f\u4fee\u88dc\u548c\u7248\u672c\u767c\u884c\u5468\u671f\u3002\u63d0\u4f9b\u7d44\u7e54\u66f4\u6709\u6548\u7684\u65b9\u6cd5\u4f86\u4fdd\u6301\u7cfb\u7d71\u66f4\u65b0\u540c\u6642\u986f\u8457\u5730\u6e1b\u5c11\u8aa4\u5224\u3002<\/p>\n<p>\u7c21\u800c\u8a00\u4e4b\uff0cTLSH\u8b93\u4f01\u696d\u53ef\u4ee5\u907f\u514d\u53bb\u6bd4\u8f03\u8edf\u9ad4\u66f4\u65b0\u7248\u672c\u7684\u54c8\u5e0c\uff08Hash\uff09\u8207\u5141\u8a31\u57f7\u884c\u7684\u597d\u6a94\u6848\u54c8\u5e0c\uff08Hash\uff09\u5217\u8868\u3002\u9032\u4e00\u6b65\u5730\u8aaa\uff1a\u6211\u5011\u7684\u7814\u7a76\u4e4b\u4e00\u662f\u5c07\u67e5\u8a62\u4e00\u7a2e\u61c9\u7528\u7a0b\u5f0f\/\u8edf\u9ad4\u8d85\u904e50\u500b\u7248\u672c\u6240\u7522\u751f\u6578\u4ee5\u842c\u8a08\u4e0d\u91cd\u8986\u7684\u54c8\u5e0c\uff08Hash\uff09\u503c\u7c21\u5316\u6210TLSH\u751f\u6210\u7684\u54c8\u5e0c\uff08Hash\uff09\u503c\uff0c\u7136\u5f8c\u518d\u5206\u6790\u5b83\u7684\u6578\u4f4d\u7c3d\u7ae0\u4f86\u78ba\u8a8d\u662f\u5426\u70ba\u80fd\u5920\u5b89\u5168\u57f7\u884c\u5728\u7cfb\u7d71\u4e0a\u7684\u6b63\u5e38\u7684\u6a94\u6848\u3002<\/p>\n<p>\u6211\u5011\u63a5\u4e0b\u4f86\u6703\u8a73\u7d30\u4ecb\u7d39TLSH\u5982\u4f55\u904b\u4f5c\u3001\u5982\u4f55\u7522\u751f\u4ee5\u53ca\u5982\u4f55\u66f4\u9032\u4e00\u6b65\u7528\u4f86\u4fdd\u8b77\u4f01\u696d\uff1a<\/p>\n<p>&nbsp;<\/p>\n<p><strong><em>\u8da8\u52e2\u79d1\u6280\u5c40\u90e8\u654f\u611f\u54c8\u5e0c\uff08TLSH<\/em><\/strong><strong><em>\uff09\uff1a\u6982\u8ff0<\/em><\/strong><\/p>\n<p>TLSH\u5354\u52a9\u5075\u6e2c\u6aa2\u67e5\u5df2\u7d93\u5728\u96fb\u8166\u6216\u8981\u653e\u5165\u96fb\u8166\u7684\u6a94\u6848\u3002\u5b83\u53ef\u4ee5\u7528\u4f86\u78ba\u4fdd\u53ea\u6709\u6b63\u5e38\u61c9\u7528\u7a0b\u5f0f\u6216\u6a94\u6848\u53ef\u4ee5\u5728\u7cfb\u7d71\u4e0a\u57f7\u884c\u3001\u958b\u555f\u6216\u5132\u5b58\u3002TLSH\u63d0\u4f9b\u5c0d\u672a\u77e5\u6a94\u6848\u8207\u5df2\u77e5\u6b63\u5e38\u53d7\u5141\u8a31\u6a94\u6848\u9593\u76f8\u4f3c\u6027\u9032\u884c\u5373\u6642\u6bd4\u8f03\u7684\u6a5f\u5236\u3002\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\u7684\u7528\u610f\u662f\u63d0\u4f9b\u53ef\u9760\u7684\u95dc\u806f\u4f5c\u6cd5\u4f86\u8b58\u5225\u6bcf\u500b\u6a94\u6848\u4e0d\u540c\u7248\u672c\u9593\u76f8\u4f3c\u5ea6\u548c\u7368\u7279\u7279\u6027\u3002<\/p>\n<p>\u9019\u500b\u529f\u80fd\u5206\u70ba\u4e0b\u9762\u5e7e\u5c64\uff1a<\/p>\n<ul>\n<li><strong><em>\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest<\/em><\/strong><strong><em>\uff09\u8a08\u7b97\u3002<\/em><\/strong>\u63d0\u4f9b\u4e00\u7a2e\u65b9\u5f0f\u4f86\u8a08\u7b97\u6a94\u6848\u7684\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\uff0c\u4e26\u4f5c\u6bd4\u8f03\u4f86\u53d6\u5f97\u76f8\u4f3c\u6027\u6216\u8aaa\u662f\u300c\u8ddd\u96e2\u5206\u6578\u300d\u3002\u8ddd\u96e2\u5206\u6578\u53ef\u80fd\u5f9e0\u52302000\uff0c\u9019\u4e9b\u300c\u5206\u6578\u300d\u8868\u793a\u5169\u500b\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\u9593\u7684\u6578\u5b78\u8ddd\u96e2\u3002\u5206\u6578\uff08\u6216\u8ddd\u96e2\uff09\u8d8a\u5c0f\uff0c\u5169\u500b\u6a94\u6848\u9593\u7684\u76f8\u4f3c\u6027\u8d8a\u5927\u3002\u8ddd\u96e2\u5206\u65780\u4ee3\u8868\u57fa\u672c\u4e0a\u662f\u76f8\u540c\u7684\u6a94\u6848\u3002<\/li>\n<li><strong><em>\u53ef\u64f4\u5c55\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest<\/em><\/strong><strong><em>\uff09\u641c\u5c0b\u6a5f\u5236\u3002<\/em><\/strong>\u6b64\u529f\u80fd\u63d0\u4f9b\u4e00\u500b\u76f4\u63a5\u7684\u65b9\u5f0f\u4f86\u641c\u5c0b\u3001\u4ea4\u53c9\u6aa2\u67e5\u548c\u78ba\u8a8d\u4e0d\u660e\u6216\u53ef\u7591\u6a94\u6848\u8207\u4e00\u7d44\u5df2\u77e5\u6b63\u5e38\u6a94\u6848\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\u9593\u7684\u76f8\u4f3c\u6027\u3002\u9019\u641c\u5c0b\u6a5f\u5236\u4e5f\u5fc5\u9808\u80fd\u5920\u64f4\u5145\u3002\u56e0\u70ba\u6703\u6709\u76f8\u7576\u5927\u91cf\u7684\u5df2\u77e5\u6b63\u5e38\u6a94\u6848\u6458\u8981\u6703\u88ab\u52a0\u9032\u8cc7\u6599\u5eab\uff0c\u540c\u6642\u5fc5\u9808\u7dad\u6301\u53ef\u63a5\u53d7\u7684\u4f4e\u641c\u5c0b\u6642\u9593\u3002TLSH\u4f7f\u7528\u7684\u641c\u5c0b\u6a5f\u5236\u53ef\u4ee5\u64f4\u5c55\u5230\u6578\u5343\u842c\u7b46\u4ee5\u4e0a\u7684\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\u3002<\/li>\n<\/ul>\n<p>\u61c9\u7528\u7a0b\u5f0f\u4e5f\u53ef\u4ee5\u5728\u96fb\u8166\u5be6\u4f5c\u672c\u5730\u7aef\u670d\u52d9\uff08\u5982\u57161\uff09\u4f86\u4f7f\u7528TLSH\uff0c\u9032\u884c\u81ea\u5df1\u7684\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\u641c\u5c0b\u548c\u6bd4\u8f03\u3002\u6216\u5be6\u4f5c\u6210Web\u670d\u52d9\uff08\u5982\u57162\uff09\u4f86\u66ff\u96fb\u8166\u7cfb\u7d71\u8655\u7406\u641c\u5c0b\u548c\u6bd4\u8f03\u64cd\u4f5c\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/blog.trendmicro.com\/trendlabs-security-intelligence\/files\/2017\/03\/TLSH-1.jpg\" width=\"601\" height=\"452\" \/><\/p>\n<p>\u57161\uff1a\u5728\u672c\u5730\u7aef\u96fb\u8166\u64cd\u4f5cTLSH<\/p>\n<p>&nbsp;<\/p>\n<p>\u7576\u4f5c\u70ba\u672c\u5730\u7aef\u670d\u52d9\uff0c\u9019\u7cfb\u7d71\u6703\u63a5\u6536\u4e00\u7d44\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\u548c\u4e00\u7d44\u5df2\u77e5\u6b63\u5e38\u6a94\u6848\u7684\u76f8\u61c9\u6587\u4ef6\u6a19\u8b58\u3002\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\u641c\u5c0b\u6a5f\u5236\u6703\u63a5\u8457\u5efa\u7acb\u7d22\u5f15\u3002\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\u61c9\u7528\u7a0b\u5f0f\u6703\u8a08\u7b97\u50b3\u5165\u7684\u672a\u77e5\u6a94\u6848\u6458\u8981\u3002\u7136\u5f8c\u9019\u61c9\u7528\u7a0b\u5f0f\u4f7f\u7528\u7d22\u5f15\u4f86\u57f7\u884c\u8cc7\u6599\u5eab\u7684\u8fd1\u4f3c\u6700\u9130\u8fd1\u641c\u5c0b\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/blog.trendmicro.com\/trendlabs-security-intelligence\/files\/2017\/03\/TLSH-2.jpg\" width=\"686\" height=\"542\" \/><\/p>\n<p>\u57162\uff1aWeb\u670d\u52d9\u64cd\u4f5cTLSH<\/p>\n<p>&nbsp;<\/p>\n<p>TLSH\u4ee5Web\u670d\u52d9\u904b\u4f5c\u6703\u7565\u6709\u4e0d\u540c\u3002\u5df2\u77e5\u6b63\u5e38\u6a94\u6848\u6703\u5148\u5132\u5b58\u5230Web\u4f3a\u670d\u5668\u4e0a\u3002\u76f8\u4f3c\u6027\u6458\u8981\u641c\u5c0b\u6a5f\u5236\u8a08\u7b97\u6240\u6709\u5132\u5b58\u7684\u6a94\u6848\u6458\u8981\u4e26\u5efa\u7acb\u7d22\u5f15\u3002\u8a72\u7cfb\u7d71\u7528Web\u4f3a\u670d\u5668\u4e0a\u540c\u6a23\u7684\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\u8a08\u7b97\u5c64\u4f86\u8a08\u7b97\u8f38\u5165\u672a\u77e5\u6a94\u6848\u7684\u6458\u8981\u3002\u6bcf\u500b\u672a\u77e5\u6a94\u6848\u7684\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\u63a5\u8457\u6703\u9001\u5230Web\u4f3a\u670d\u5668\uff0c\u8b93Web\u670d\u52d9\u61c9\u7528\u7a0b\u5f0f\u7528\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\u641c\u5c0b\u6a5f\u5236\u4f86\u5c0d\u6bcf\u500b\u672a\u77e5\u6458\u8981\u8207\u5df2\u77e5\u6b63\u5e38\u6a94\u6848\u6458\u8981\u9032\u884c\u641c\u5c0b\u548c\u6bd4\u8f03\u3002\u5c0d\u61c9\u5df2\u77e5\u6b63\u5e38\u6a94\u6848\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\u7684\u6a94\u6848ID\u63a5\u8457\u6703\u50b3\u56de\u96fb\u8166\uff0c\u7136\u5f8c\u6c7a\u5b9a\u8981\u5c0d\u9019\u4e9b\u6a94\u6848\u63a1\u53d6\u4f55\u7a2e\u884c\u52d5\u3002<\/p>\n<p>\u5728\u7cfb\u7d71\u63a1\u53d6\u52d5\u4f5c\u524d\uff0c\u6709\u5169\u500b\u9078\u64c7\u6027\u6b65\u9a5f\u53ef\u4ee5\u8003\u616e\u3002\u5728\u6a94\u6848ID\u50b3\u56de\u96fb\u8166\u5f8c\uff0c\u7cfb\u7d71\u53ef\u4ee5\u5728\u67e5\u8a62\u7528\u985e\u4f3c\u6a94\u6848ID\u5132\u5b58\u7684\u6a94\u6848\u3002\u5c0d\u61c9\u65bc\u6bcf\u500b\u6a94\u6848ID\u7684\u76f8\u4f3c\u6a94\u6848\u8a73\u7d30\u8cc7\u6599\u63a5\u8457\u6703\u50b3\u56de\u96fb\u8166\uff0c\u7136\u5f8c\u6c7a\u5b9a\u8981\u5c0d\u6a94\u6848\u505a\u4ec0\u9ebc\u3002<\/p>\n<p>&nbsp;<\/p>\n<p><strong><em>TLSH<\/em><\/strong><strong><em>\u7684\u512a\u52a3\uff1f<\/em><\/strong><\/p>\n<p>\u6b63\u5e38\u7684\u96fb\u8166\u7a0b\u5f0f\u6703\u4e0d\u65b7\u8b8a\u5316\uff0c\u5f9e\u4e00\u9023\u4e32\u7684\u5c0f\u66f4\u65b0\u5230\u986f\u8457\u7684\u4fee\u6539\uff0c\u5305\u62ec\u4fee\u88dc\u7a0b\u5f0f\u3001\u529f\u80fd\u589e\u5f37\u548c\u6a94\u6848\u640d\u6bc0\u3002\u9019\u4e9b\u8b8a\u5316\u90fd\u53ef\u80fd\u6539\u8b8a\u7a0b\u5f0f\u7684\u54c8\u5e0c\uff08Hash\uff09\u503c\u3002\u9019\u5c0d\u5927\u591a\u6578\u50b3\u7d71\u767d\u540d\u55ae\u8edf\u9ad4\u9020\u6210\u554f\u984c\uff0c\u56e0\u70ba\u5b83\u5011\u6bd4\u5c0d\u7684\u662f\u52a0\u5bc6\u54c8\u5e0c\uff08Hash\uff09\u5982SHA256\u6216MD5\uff0c\u52a0\u4e0a\u5df2\u77e5\u597d\u6a94\u6848\u54c8\u5e0c\uff08Hash\uff09\u7684\u8cc7\u6599\u5eab\u3002<\/p>\n<p>\u60e1\u610f\u5206\u5b50\u53ef\u4ee5\u5c07\u60e1\u610f\u7a0b\u5f0f\u78bc\u63d2\u5165\u6a94\u6848\u6216\u7a0b\u5f0f\uff0c\u8b93\u5176\u54c8\u5e0c\uff08Hash\uff09\u503c\u8ddf\u6b63\u5e38\u7248\u672c\u76f8\u4f3c\u3002TLSH\u7528\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\u7684\u8cc7\u6599\u5206\u6578\u4f86\u5206\u6790\u7a0b\u5f0f\u4ee5\u5224\u65b7\u9019\u662f\u4e00\u500b\u597d\u6a94\u6848\u3002\u5982\u679c\u8207\u5df2\u77e5\u6b63\u5e38\u7a0b\u5f0f\u76f8\u4f3c\uff0c\u6703\u9032\u884c\u984d\u5916\u6e2c\u8a66\u4f86\u78ba\u8a8d\u65b0\u6a94\u6848\u4f86\u81ea\u8ddf\u539f\u59cb\u6a94\u6848\u76f8\u540c\u7684\u53ef\u4fe1\u8cf4\u4f86\u6e90\u3002<\/p>\n<p>\u767d\u540d\u55ae\u61c9\u7528\u7a0b\u5f0f\u4f7f\u7528\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\u7684\u4f5c\u6cd5\u5df2\u7d93\u76f8\u7576\u666e\u904d\uff0c\u9019\u8981\u6b78\u529f\u65bc\u50cfSDHASH\u548cSSDEEP\u9019\u985e\u5de5\u5177\u3002\u5169\u8005\u90fd\u53ef\u4ee5\u7528\u4f86\u8a08\u7b97\u548c\u6bd4\u8f03\u54c8\u5e0c\uff08Hash\uff09\u503c\u7684\u76f8\u4f3c\u6027\u3002\u7136\u800c\uff0cSDHASH\u548cSSDEEP\u6240\u7528\u7684\u7dda\u6027\u641c\u5c0b\u76f8\u7576\u6162\u3002\u6839\u64da\u6211\u5011\u7684\u6e2c\u8a66\u53ca\u5206\u6790\uff0cSSDEEP\u7d93\u5e38\u6703\u6f0f\u6aa2\u4e26\u56e0\u6b64\u932f\u5931\u8b58\u5225\u96fb\u8166\u7a0b\u5f0f\u9032\u884c\u7684\u66f4\u65b0\u3002SDHASH\u6bd4\u5c0d\u5177\u6709\u76f8\u540c\u768464\u4f4d\u5143\u5e8f\u5217\u7684\u6a94\u6848\uff0c\u8b93\u5b83\u53ef\u4ee5\u6bd4\u8f03\u5177\u5099\u986f\u8457\u91cd\u758a\u5340\u57df\uff08\u5982\u4f7f\u7528\u5171\u4eab\u7684\u7a0b\u5f0f\u5eab\uff09\u7684\u96fb\u8166\u7a0b\u5f0f\uff0c\u4f46\u5176\u4ed6\u90e8\u5206\u53ef\u80fd\u6703\u6709\u5927\u5927\u4e0d\u540c\u3002<\/p>\n<p>\u6b64\u5916\uff0cSSDEEP\u3001SDHASH\u53ca\u5176\u4ed6\u76f8\u4f3c\u6027\u6458\u8981\uff08similarity digest\uff09\u4e0d\u5177\u5099\u5feb\u901f\u641c\u5c0b\u6a5f\u5236\uff1b\u5c07\u5176\u7528\u5728\u767d\u540d\u55ae\u7cfb\u7d71\u53ef\u80fd\u4e26\u4e0d\u5be6\u969b\uff0c\u56e0\u70ba\u9700\u8981\u6bd4\u8f03\u9ad8\u9054\u6578\u5343\u842c\u7b46\u7684\u6b63\u5e38\u96fb\u8166\u7a0b\u5f0f\u3002\u4f7f\u7528\u7d22\u5f15\u548cTLSH\uff08\u4ee5\u9069\u7576\u7684\u8ddd\u96e2\u5206\u6578\uff09\u8b93\u6211\u5011\u53ef\u4ee5\u5f97\u5230\u8207\u4e00\u822c\u8cc7\u6599\u5eab\u67e5\u627e\u76f8\u540c\u7684\u901f\u5ea6\u3002<\/p>\n<p><em>\u8da8\u52e2\u79d1\u6280\u5c40\u90e8\u654f\u611f\u54c8\u5e0c\u65bc3<\/em><em>\u670830<\/em><em>\u65e5\u548c31<\/em><em>\u65e5\u5728\u65b0\u52a0\u5761\u6ff1\u6d77\u7063\u91d1\u6c99\u98ef\u5e97\u76842017<\/em><em>\u5e74\u4e9e\u6d32\u9ed1\u5e3d\u5927\u6703\u4e0a\u4ee5\u300c<\/em><a href=\"https:\/\/www.blackhat.com\/asia-17\/arsenal.html#smart-whitelisting-using-locality-sensitive-hashing\"><em>\u4f7f\u7528\u5c40\u90e8\u654f\u611f\u54c8\u5e0c\u7684\u667a\u6167\u578b\u767d\u540d\u55ae<\/em><\/a><em>\u300d\u4e3b\u984c\u516c\u958b\u3002\u540c\u6642\u4e5f\u767c\u8868\u70ba\u540c\u5115\u5be9\u67e5\u5831\u544a \u2013 <\/em><em>\u300c<\/em><a href=\"https:\/\/github.com\/trendmicro\/tlsh\/blob\/master\/TLSH_CTC_final.pdf\"><em>TLSH \u2013 <\/em><em>\u4e00\u7a2e\u5c40\u90e8\u654f\u611f\u54c8\u5e0c<\/em><\/a><em>\u300d\u548c\u300c<\/em><a href=\"https:\/\/github.com\/trendmicro\/tlsh\/blob\/master\/Attacking_LSH_and_Sim_Dig.pdf\"><em>\u4f7f\u7528\u96a8\u6a5f\u5316\u4f86\u653b\u64ca\u76f8\u4f3c\u6027\u6458\u8981<\/em><\/a><em>\u300d\u3002<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>\uff20\u539f\u6587\u51fa\u8655\uff1a<a href=\"https:\/\/blog.trendmicro.com\/trendlabs-security-intelligence\/smart-whitelisting-using-locality-sensitive-hashing\/\">Smart Whitelisting Using Locality Sensitive Hashing<\/a> \u4f5c\u8005\uff1a<a href=\"https:\/\/blog.trendmicro.com\/trendlabs-security-intelligence\/author\/trend-micro\/\">\u8da8\u52e2\u79d1\u6280<\/a>\uff08Jon Oliver\u548cJayson Pryde\uff09<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5c40\u90e8\u654f\u611f\u54c8\u5e0c\uff08Locality Sensitive Hashing\uff0cLSH\uff09\u662f\u4e00\u7a2e\u4f5c\u70ba\u53ef\u64f4\u5c55\uff0c\u8fd1\u4f3c\u6700\u8fd1\u9130\u641c\u5c0b\u7269 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_wpscppro_dont_share_socialmedia":false,"_wpscppro_custom_social_share_image":0,"_facebook_share_type":"","_twitter_share_type":"","_linkedin_share_type":"","_pinterest_share_type":"","_linkedin_share_type_page":"","_instagram_share_type":"","_medium_share_type":"","_threads_share_type":"","_google_business_share_type":"","_selected_social_profile":[],"_wpsp_enable_custom_social_template":false,"_wpsp_social_scheduling":{"enabled":false,"datetime":null,"platforms":[],"status":"template_only","dateOption":"today","timeOption":"now","customDays":"","customHours":"","customDate":"","customTime":"","schedulingType":"absolute"},"_wpsp_active_default_template":true},"categories":[1268],"tags":[3205,3204,3203],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/49541"}],"collection":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=49541"}],"version-history":[{"count":0,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/49541\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=49541"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=49541"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=49541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}