{"id":27248,"date":"2025-11-17T14:34:02","date_gmt":"2025-11-17T06:34:02","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-cn\/troubleshooting-abnormal-processes-on-hong-kong-servers\/"},"modified":"2025-11-17T14:38:04","modified_gmt":"2025-11-17T06:38:04","slug":"troubleshooting-abnormal-processes-on-hong-kong-servers","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-cn\/blog\/troubleshooting-abnormal-processes-on-hong-kong-servers\/","title":{"rendered":"\u9999\u6e2f\u670d\u52a1\u5668\u5f02\u5e38\u8fdb\u7a0b\u6545\u969c\u6392\u67e5"},"content":{"rendered":"<h2><strong>\u7406\u89e3\u8fdb\u7a0b\u884c\u4e3a\u548c\u521d\u59cb\u68c0\u6d4b<\/strong><\/h2>\n<p>\u670d\u52a1\u5668\u5b89\u5168\u4ecd\u7136\u662f<a href=\"https:\/\/www.varidata.com\/zh-cn\/server\/hk\/cn2\/\" target=\"_blank\">\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528<\/a>\u73af\u5883\u4e2d\u7684\u91cd\u8981\u5173\u6ce8\u70b9\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u53ef\u80fd\u8868\u660e\u6f5c\u5728<a href=\"https:\/\/www.varidata.com\/zh-cn\/blog\/implementing-multi-layer-firewalls-on-us-servers\/\" target=\"_blank\">\u5b89\u5168\u6f0f\u6d1e<\/a>\u7684\u5f02\u5e38\u8fdb\u7a0b\u65f6\u3002\u968f\u7740\u7f51\u7edc\u5a01\u80c1\u7684\u6f14\u53d8\uff0c\u7cfb\u7edf\u7ba1\u7406\u5458\u5fc5\u987b\u4fdd\u6301\u8b66\u60d5\uff0c\u76d1\u63a7\u548c\u54cd\u5e94\u53ef\u7591\u6d3b\u52a8\u3002\u672c\u7efc\u5408\u6280\u672f\u6307\u5357\u63a2\u8ba8\u4e86\u670d\u52a1\u5668\u73af\u5883\u4e2d\u8fdb\u7a0b\u5206\u6790\u548c\u98ce\u9669\u7f13\u89e3\u7684\u9ad8\u7ea7\u65b9\u6cd5\uff0c\u7279\u522b\u5173\u6ce8\u9999\u6e2f\u9ad8\u901f\u3001\u9ad8\u5bc6\u5ea6\u670d\u52a1\u5668\u79df\u7528\u57fa\u7840\u8bbe\u65bd\u6240\u9762\u4e34\u7684\u72ec\u7279\u6311\u6218\u3002\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8\u547d\u4ee4\u884c\u5de5\u5177\u3001\u7cfb\u7edf\u76d1\u63a7\u6280\u672f\u548c\u5feb\u901f\u54cd\u5e94\u534f\u8bae\uff0c\u8fd9\u4e9b\u90fd\u662f\u5728\u5f53\u4eca\u5a01\u80c1\u73af\u5883\u4e2d\u7ef4\u62a4\u670d\u52a1\u5668\u5b8c\u6574\u6027\u7684\u5173\u952e\u8981\u7d20\u3002<\/p>\n<h2><strong>\u53ef\u7591\u8fdb\u7a0b\u7684\u5173\u952e\u6307\u6807<\/strong><\/h2>\n<p>\u7406\u89e3\u6076\u610f\u8fdb\u7a0b\u7684\u5178\u578b\u7279\u5f81\u9700\u8981\u7ecf\u9a8c\u548c\u7cfb\u7edf\u6027\u89c2\u5bdf\u3002\u4ee5\u4e0b\u662f\u9700\u8981\u76d1\u63a7\u7684\u5173\u952e\u6307\u6807\uff1a<\/p>\n<ul>\n<li>\u610f\u5916\u7684\u9ad8CPU\u4f7f\u7528\u7387\u6a21\u5f0f\uff0c\u7279\u522b\u662f\u5728\u975e\u9ad8\u5cf0\u65f6\u6bb5\u6216\u6765\u81ea\u4e0d\u719f\u6089\u7684\u8fdb\u7a0b<\/li>\n<li>\u4e0e\u6b63\u5e38\u5e94\u7528\u7a0b\u5e8f\u884c\u4e3a\u4e0d\u7b26\u7684\u5f02\u5e38\u5185\u5b58\u6d88\u8017\u66f2\u7ebf<\/li>\n<li>\u4e0d\u89c4\u5219\u7684\u7f51\u7edc\u6d41\u91cf\u7279\u5f81\uff0c\u7279\u522b\u662f\u4e0e\u672a\u77e5\u7ec8\u7aef\u7684\u51fa\u7ad9\u8fde\u63a5<\/li>\n<li>\u7cfb\u7edf\u76ee\u5f55\u6216\u610f\u5916\u4f4d\u7f6e\u7684\u672a\u6388\u6743\u6587\u4ef6\u7cfb\u7edf\u4fee\u6539<\/li>\n<li>\u6a21\u4eff\u5408\u6cd5\u7cfb\u7edf\u8fdb\u7a0b\u7684\u53ef\u7591\u8fdb\u7a0b\u540d\u79f0\u6216\u4f4d\u7f6e<\/li>\n<li>\u504f\u79bb\u6b63\u5e38\u7cfb\u7edf\u884c\u4e3a\u7684\u5f02\u5e38\u7236\u5b50\u8fdb\u7a0b\u5173\u7cfb<\/li>\n<li>\u5728\u610f\u5916\u7528\u6237\u4e0a\u4e0b\u6587\u4e2d\u8fd0\u884c\u6216\u5177\u6709\u63d0\u5347\u6743\u9650\u7684\u8fdb\u7a0b<\/li>\n<li>\u8fdb\u7a0b\u7ef4\u62a4\u7684\u5f02\u5e38\u6587\u4ef6\u53e5\u67c4\u6216\u5957\u63a5\u5b57\u8fde\u63a5<\/li>\n<\/ul>\n<h2><strong>\u57fa\u672c\u8bca\u65ad\u547d\u4ee4<\/strong><\/h2>\n<p>\u4e3a\u4e86\u8fdb\u884c\u6709\u6548\u7684\u8fdb\u7a0b\u5206\u6790\uff0c\u9700\u8981\u638c\u63e1\u8fd9\u4e9b\u57fa\u672c\u547d\u4ee4\u5e76\u7406\u89e3\u5176\u9ad8\u7ea7\u4f7f\u7528\u6a21\u5f0f\uff1a<\/p>\n<ol>\n<li>top -c -p $(pgrep -d&#8217;,&#8217; -f suspicious_pattern) &#8211; \u63d0\u4f9b\u5b9e\u65f6\u8fdb\u7a0b\u76d1\u63a7\uff0c\u652f\u6301\u81ea\u5b9a\u4e49\u8fdb\u7a0b\u9009\u62e9<\/li>\n<li>ps aux | grep -i [process_pattern] &#8211; \u63d0\u4f9b\u8be6\u7ec6\u7684\u8fdb\u7a0b\u4fe1\u606f\uff0c\u652f\u6301\u7075\u6d3b\u7684\u6a21\u5f0f\u5339\u914d<\/li>\n<li>lsof -p [pid] &#8211; \u68c0\u67e5\u7279\u5b9a\u8fdb\u7a0b\u7684\u6240\u6709\u6587\u4ef6\u53e5\u67c4\u548c\u7f51\u7edc\u8fde\u63a5<\/li>\n<li>strace -p [pid] &#8211; \u76d1\u63a7\u7cfb\u7edf\u8c03\u7528\u548c\u4fe1\u53f7\u4ee5\u8fdb\u884c\u6df1\u5ea6\u8fdb\u7a0b\u884c\u4e3a\u5206\u6790<\/li>\n<li>netstat -tupln &#8211; \u6620\u5c04\u6240\u6709\u6d3b\u52a8\u7684\u7f51\u7edc\u8fde\u63a5\u548c\u76d1\u542c\u7aef\u53e3<\/li>\n<li>iotop -o -P -k &#8211; \u5b9e\u65f6\u76d1\u63a7\u8fdb\u7a0b\u7684\u78c1\u76d8I\/O\u4f7f\u7528\u60c5\u51b5<\/li>\n<li>pidstat -d -p [pid] 1 &#8211; \u63d0\u4f9b\u8be6\u7ec6\u7684\u6bcf\u4e2a\u8fdb\u7a0bI\/O\u7edf\u8ba1\u4fe1\u606f<\/li>\n<li>pmap -x [pid] &#8211; \u5206\u6790\u8fdb\u7a0b\u5185\u5b58\u6620\u5c04\u548c\u4f7f\u7528\u6a21\u5f0f<\/li>\n<\/ol>\n<h2><strong>\u9ad8\u7ea7\u8fdb\u7a0b\u8c03\u67e5\u6280\u672f<\/strong><\/h2>\n<p>\u5728\u8c03\u67e5\u53ef\u7591\u8fdb\u7a0b\u65f6\uff0c\u91c7\u7528\u8fd9\u4e9b\u7ed3\u5408\u4f20\u7edf\u548c\u73b0\u4ee3\u5206\u6790\u65b9\u6cd5\u7684\u9ad8\u7ea7\u6280\u672f\u3002\u7406\u89e3\u8fdb\u7a0b\u884c\u4e3a\u9700\u8981\u4e00\u4e2a\u591a\u5c42\u6b21\u7684\u65b9\u6cd5\uff0c\u5728\u4e0d\u540c\u5c42\u9762\u68c0\u67e5\u7cfb\u7edf\u4ea4\u4e92\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528pstree\u8fdb\u884c\u8fdb\u7a0b\u6811\u5206\u6790\uff0c\u8be6\u7ec6\u68c0\u67e5\u7236\u5b50\u5173\u7cfb\u548c\u7ee7\u627f\u6a21\u5f0f<\/li>\n<li>\u4f7f\u7528strace\u8fdb\u884c\u7cfb\u7edf\u8c03\u7528\u8ffd\u8e2a\uff0c\u91cd\u70b9\u5173\u6ce8\u6587\u4ef6\u64cd\u4f5c\u3001\u7f51\u7edc\u6d3b\u52a8\u548c\u8fdb\u7a0b\u95f4\u901a\u4fe1<\/li>\n<li>\u4f7f\u7528ss\u7b49\u590d\u6742\u5de5\u5177\u8fdb\u884c\u7f51\u7edc\u8fde\u63a5\u6620\u5c04\u548c\u8be6\u7ec6\u534f\u8bae\u5206\u6790<\/li>\n<li>\u6587\u4ef6\u63cf\u8ff0\u7b26\u68c0\u67e5\uff0c\u7528\u4e8e\u8bc6\u522b\u6f5c\u5728\u7684\u6570\u636e\u6cc4\u9732\u6216\u672a\u6388\u6743\u8bbf\u95ee\u5c1d\u8bd5<\/li>\n<li>\u4f7f\u7528gdb\u548cvolatility\u7b49\u9ad8\u7ea7\u5de5\u5177\u8fdb\u884c\u5185\u5b58\u6620\u5c04\u5206\u6790\uff0c\u5b9e\u73b0\u66f4\u6df1\u5165\u7684\u53d6\u8bc1<\/li>\n<li>\u901a\u8fc7\u5ef6\u957f\u76d1\u63a7\u671f\u8fdb\u884c\u8d44\u6e90\u4f7f\u7528\u6a21\u5f0f\u5206\u6790<\/li>\n<li>\u8fdb\u7a0b\u6d3b\u52a8\u4e0e\u7cfb\u7edf\u4e8b\u4ef6\u548c\u65e5\u5fd7\u7684\u5173\u8054\u5206\u6790<\/li>\n<\/ul>\n<h2><strong>\u5b9e\u65f6\u76d1\u63a7\u5b9e\u65bd<\/strong><\/h2>\n<p>\u5b9e\u65bd\u5f3a\u5927\u7684\u5b9e\u65f6\u76d1\u63a7\u9700\u8981\u7ed3\u5408\u591a\u79cd\u5de5\u5177\u548c\u7b56\u7565\u7684\u7efc\u5408\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u76d1\u63a7\u7ec4\u4ef6\u7684\u8be6\u7ec6\u5206\u89e3\uff1a<\/p>\n<ol>\n<li>\u7528\u4e8e\u7cfb\u7edf\u8c03\u7528\u76d1\u63a7\u7684Auditd\uff1a\n<ul>\n<li>\u914d\u7f6e\u654f\u611f\u6587\u4ef6\u8bbf\u95ee\u89c4\u5219<\/li>\n<li>\u76d1\u63a7\u53ef\u6267\u884c\u6587\u4ef6\u521b\u5efa<\/li>\n<li>\u8ddf\u8e2a\u6743\u9650\u63d0\u5347\u5c1d\u8bd5<\/li>\n<li>\u8bb0\u5f55\u6240\u6709\u7f51\u7edc\u8fde\u63a5\u5c1d\u8bd5<\/li>\n<\/ul>\n<\/li>\n<li>\u7528\u4e8e\u5165\u4fb5\u9632\u8303\u7684Fail2ban\uff1a\n<ul>\n<li>\u81ea\u5b9a\u4e49\u76d1\u72f1\u914d\u7f6e<\/li>\n<li>\u81ea\u9002\u5e94\u5c01\u7981\u5468\u671f<\/li>\n<li>IP\u767d\u540d\u5355\u673a\u5236<\/li>\n<li>\u4e0e\u5176\u4ed6\u5b89\u5168\u5de5\u5177\u7684\u8b66\u62a5\u5173\u8054<\/li>\n<\/ul>\n<\/li>\n<li>\u7528\u4e8e\u670d\u52a1\u76d1\u63a7\u7684Nagios\uff1a\n<ul>\n<li>\u81ea\u5b9a\u4e49\u670d\u52a1\u68c0\u67e5<\/li>\n<li>\u6027\u80fd\u9608\u503c\u76d1\u63a7<\/li>\n<li>\u81ea\u52a8\u54cd\u5e94\u811a\u672c<\/li>\n<li>\u4e0e\u901a\u77e5\u7cfb\u7edf\u96c6\u6210<\/li>\n<\/ul>\n<\/li>\n<li>\u7528\u4e8e\u8fdb\u7a0b\u884c\u4e3a\u5206\u6790\u7684\u81ea\u5b9a\u4e49shell\u811a\u672c\uff1a\n<ul>\n<li>\u57fa\u51c6\u884c\u4e3a\u5efa\u6a21<\/li>\n<li>\u5f02\u5e38\u68c0\u6d4b\u7b97\u6cd5<\/li>\n<li>\u8d44\u6e90\u4f7f\u7528\u8ddf\u8e2a<\/li>\n<li>\u81ea\u52a8\u62a5\u544a\u673a\u5236<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2><strong>\u5373\u65f6\u98ce\u9669\u7f13\u89e3\u6b65\u9aa4<\/strong><\/h2>\n<p>\u5f53\u68c0\u6d4b\u5230\u6076\u610f\u8fdb\u7a0b\u65f6\uff0c\u65f6\u95f4\u81f3\u5173\u91cd\u8981\u3002\u5728\u4fdd\u6301\u7cfb\u7edf\u7a33\u5b9a\u548c\u8bc1\u636e\u4fdd\u5b58\u7684\u540c\u65f6\uff0c\u6309\u987a\u5e8f\u6267\u884c\u8fd9\u4e9b\u6b65\u9aa4\uff1a<\/p>\n<ul>\n<li>\u8fdb\u7a0b\u7ec8\u6b62\uff1a\n<ul>\n<li>kill -9 [pid] \u7528\u4e8e\u7acb\u5373\u7ec8\u6b62<\/li>\n<li>killall -9 [process_name] \u7528\u4e8e\u591a\u4e2a\u5b9e\u4f8b<\/li>\n<li>pkill -f [pattern] \u7528\u4e8e\u57fa\u4e8e\u6a21\u5f0f\u7684\u7ec8\u6b62<\/li>\n<\/ul>\n<\/li>\n<li>\u7f51\u7edc\u9694\u79bb\uff1a\n<ul>\n<li>iptables -A INPUT -s [ip_address] -j DROP \u7528\u4e8e\u5165\u7ad9\u8fde\u63a5<\/li>\n<li>iptables -A OUTPUT -d [ip_address] -j DROP \u7528\u4e8e\u51fa\u7ad9\u8fde\u63a5<\/li>\n<li>\u8def\u7531\u8868\u4fee\u6539\u7528\u4e8e\u7f51\u7edc\u6bb5\u9694\u79bb<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u8fdb\u5236\u5206\u6790\uff1a\n<ul>\n<li>strings [suspicious_file] \u7528\u4e8e\u521d\u6b65\u4fa6\u5bdf<\/li>\n<li>file [suspicious_file] \u7528\u4e8e\u6587\u4ef6\u7c7b\u578b\u8bc6\u522b<\/li>\n<li>md5sum [suspicious_file] \u7528\u4e8e\u54c8\u5e0c\u6bd4\u8f83<\/li>\n<\/ul>\n<\/li>\n<li>\u542f\u52a8\u9879\u8c03\u67e5\uff1a\n<ul>\n<li>systemctl list-unit-files \u7528\u4e8e\u670d\u52a1\u679a\u4e3e<\/li>\n<li>crontab -l \u7528\u4e8e\u8ba1\u5212\u4efb\u52a1\u5ba1\u67e5<\/li>\n<li>\u68c0\u67e5 \/etc\/init.d\/ \u4e2d\u7684\u65e7\u5f0f\u542f\u52a8\u811a\u672c<\/li>\n<\/ul>\n<\/li>\n<li>\u65e5\u5fd7\u5206\u6790\uff1a\n<ul>\n<li>tail -f \/var\/log\/auth.log \u7528\u4e8e\u8eab\u4efd\u9a8c\u8bc1\u5c1d\u8bd5<\/li>\n<li>grep -r [pattern] \/var\/log\/ \u7528\u4e8e\u5168\u9762\u65e5\u5fd7\u641c\u7d22<\/li>\n<li>journalctl -xef \u7528\u4e8esystemd\u65e5\u5fd7\u76d1\u63a7<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>\u9884\u9632\u548c\u7cfb\u7edf\u52a0\u56fa<\/strong><\/h2>\n<p>\u5b9e\u65bd\u5168\u9762\u7684\u5b89\u5168\u63aa\u65bd\u9700\u8981\u7cfb\u7edf\u5316\u7684\u7cfb\u7edf\u52a0\u56fa\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u5b89\u5168\u5b9e\u65bd\u7684\u8be6\u7ec6\u5206\u89e3\uff1a<\/p>\n<ol>\n<li>\u5b9a\u671f\u5b89\u5168\u66f4\u65b0\u548c\u8865\u4e01\u7ba1\u7406\uff1a\n<ul>\n<li>\u4f7f\u7528apt-cron\u6216yum-cron\u8fdb\u884c\u81ea\u52a8\u5b89\u5168\u8865\u4e01\u90e8\u7f72<\/li>\n<li>\u8003\u8651\u5b9e\u65f6\u4fee\u8865\u7684\u5185\u6838\u66f4\u65b0\u7ba1\u7406<\/li>\n<li>\u914d\u7f6e\u6587\u4ef6\u7248\u672c\u63a7\u5236\u548c\u5907\u4efd<\/li>\n<li>\u5f3a\u5236\u5305\u7b7e\u540d\u9a8c\u8bc1<\/li>\n<\/ul>\n<\/li>\n<li>\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u5217\u8868\u914d\u7f6e\uff1a\n<ul>\n<li>\u5b9e\u65bd\u4e25\u683c\u7684iptables\u89c4\u5219\u96c6<\/li>\n<li>\u5e26\u6709\u901f\u7387\u9650\u5236\u7684\u57fa\u4e8e\u7aef\u53e3\u7684\u8bbf\u95ee\u63a7\u5236<\/li>\n<li>\u9488\u5bf9\u9ad8\u98ce\u9669\u5730\u533a\u7684\u5730\u7406IP\u8fc7\u6ee4<\/li>\n<li>\u4f7f\u7528ModSecurity\u7684\u5e94\u7528\u5c42\u8fc7\u6ee4<\/li>\n<\/ul>\n<\/li>\n<li>\u8fdb\u7a0b\u8d26\u6237\u8bbe\u7f6e\uff1a\n<ul>\n<li>\u914d\u7f6eauditd\u89c4\u5219\u7528\u4e8e\u8fdb\u7a0b\u8ddf\u8e2a<\/li>\n<li>\u5b9e\u65bd\u8fdb\u7a0b\u8d44\u6e90\u9650\u5236<\/li>\n<li>\u8bbe\u7f6e\u8fdb\u7a0b\u6267\u884c\u65e5\u5fd7\u8bb0\u5f55<\/li>\n<li>\u4e0e\u96c6\u4e2d\u5f0f\u65e5\u5fd7\u7cfb\u7edf\u96c6\u6210<\/li>\n<\/ul>\n<\/li>\n<li>\u8d44\u6e90\u9650\u5236\u5b9e\u65bd\uff1a\n<ul>\n<li>\u4f7f\u7528cgroups\u7684CPU\u4f7f\u7528\u9650\u5236<\/li>\n<li>\u4f7f\u7528systemd slices\u7684\u5185\u5b58\u9650\u5236<\/li>\n<li>\u5bf9\u53ef\u7591\u8fdb\u7a0b\u8fdb\u884cI\/O\u9650\u6d41<\/li>\n<li>\u4f7f\u7528tc\u8fdb\u884c\u7f51\u7edc\u5e26\u5bbd\u63a7\u5236<\/li>\n<\/ul>\n<\/li>\n<li>\u81ea\u52a8\u5907\u4efd\u7cfb\u7edf\uff1a\n<ul>\n<li>\u589e\u91cf\u5907\u4efd\u8c03\u5ea6<\/li>\n<li>\u5f02\u5730\u5907\u4efd\u540c\u6b65<\/li>\n<li>\u5907\u4efd\u52a0\u5bc6\u5b9e\u65bd<\/li>\n<li>\u5b9a\u671f\u6062\u590d\u6d4b\u8bd5\u534f\u8bae<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2><strong>\u6848\u4f8b\u5206\u6790\u7814\u7a76<\/strong><\/h2>\n<p>\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\u6700\u8fd1\u7684\u5b89\u5168\u4e8b\u4ef6\u63ed\u793a\u4e86\u590d\u6742\u7684\u653b\u51fb\u6a21\u5f0f\u3002\u4ee5\u4e0b\u662f\u503c\u5f97\u6ce8\u610f\u7684\u6848\u4f8b\u8be6\u7ec6\u5206\u6790\uff1a<\/p>\n<ul>\n<li>\u52a0\u5bc6\u8d27\u5e01\u6316\u77ff\u611f\u67d3\uff1a\n<ul>\n<li>\u4f2a\u88c5\u6210\u7cfb\u7edf\u670d\u52a1\u7684\u8fdb\u7a0b<\/li>\n<li>\u52a8\u6001\u4e8c\u8fdb\u5236\u66ff\u6362\u6280\u672f<\/li>\n<li>CPU\u9650\u5236\u4ee5\u907f\u514d\u68c0\u6d4b<\/li>\n<li>\u5206\u5e03\u5f0f\u6316\u77ff\u6c60\u8fde\u63a5<\/li>\n<\/ul>\n<\/li>\n<li>DDoS\u50f5\u5c38\u7f51\u7edc\u53c2\u4e0e\uff1a\n<ul>\n<li>\u4f11\u7720\u8fdb\u7a0b\u6fc0\u6d3b\u6a21\u5f0f<\/li>\n<li>\u547d\u4ee4\u548c\u63a7\u5236\u901a\u4fe1\u65b9\u6cd5<\/li>\n<li>\u6d41\u91cf\u653e\u5927\u6280\u672f<\/li>\n<li>\u4f7f\u7528\u7684\u53cd\u68c0\u6d4b\u673a\u5236<\/li>\n<\/ul>\n<\/li>\n<li>\u6570\u636e\u7a83\u53d6\u5c1d\u8bd5\uff1a\n<ul>\n<li>\u52a0\u5bc6\u96a7\u9053\u521b\u5efa\u65b9\u6cd5<\/li>\n<li>\u6570\u636e\u5e93\u6293\u53d6\u6280\u672f<\/li>\n<li>\u5206\u9636\u6bb5\u6570\u636e\u4f20\u8f93\u6a21\u5f0f<\/li>\n<li>\u4ec5\u5185\u5b58\u8f7d\u8377\u6267\u884c<\/li>\n<\/ul>\n<\/li>\n<li>\u6743\u9650\u63d0\u5347\u653b\u51fb\uff1a\n<ul>\n<li>\u5185\u6838\u6f0f\u6d1e\u5229\u7528<\/li>\n<li>\u670d\u52a1\u914d\u7f6e\u9519\u8bef\u6ee5\u7528<\/li>\n<li>SUID\u4e8c\u8fdb\u5236\u6587\u4ef6\u64cd\u7eb5<\/li>\n<li>\u81ea\u5b9a\u4e49rootkit\u5b9e\u73b0<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>\u9ad8\u7ea7\u53d6\u8bc1\u6280\u672f<\/strong><\/h2>\n<p>\u751f\u4ea7\u73af\u5883\u4e2d\u7684\u6570\u5b57\u53d6\u8bc1\u9700\u8981\u8c28\u614e\u5904\u7406\u548c\u590d\u6742\u7684\u5de5\u5177\u3002\u4ee5\u4e0b\u662f\u5168\u9762\u7684\u65b9\u6cd5\uff1a<\/p>\n<ol>\n<li>\u5185\u5b58\u8f6c\u50a8\u5206\u6790\uff1a\n<ul>\n<li>\u4f7f\u7528LiME\u8fdb\u884c\u5b9e\u65f6\u5185\u5b58\u83b7\u53d6<\/li>\n<li>Volatility\u6846\u67b6\u5206\u6790\u6280\u672f<\/li>\n<li>\u9690\u85cf\u8fdb\u7a0b\u68c0\u6d4b\u65b9\u6cd5<\/li>\n<li>\u5185\u5b58\u9a7b\u7559\u6076\u610f\u8f6f\u4ef6\u8bc6\u522b<\/li>\n<\/ul>\n<\/li>\n<li>\u7f51\u7edc\u6570\u636e\u5305\u6355\u83b7\u5ba1\u67e5\uff1a\n<ul>\n<li>\u4f7f\u7528tcpdump\u8fdb\u884c\u5b8c\u6574\u6570\u636e\u5305\u6355\u83b7<\/li>\n<li>\u4f7f\u7528Wireshark\u8fdb\u884c\u534f\u8bae\u5206\u6790<\/li>\n<li>\u6d41\u91cf\u6a21\u5f0f\u5f02\u5e38\u68c0\u6d4b<\/li>\n<li>\u52a0\u5bc6\u6d41\u91cf\u5206\u6790\u65b9\u6cd5<\/li>\n<\/ul>\n<\/li>\n<li>\u6587\u4ef6\u7cfb\u7edf\u65f6\u95f4\u7ebf\u91cd\u5efa\uff1a\n<ul>\n<li>Inode\u65f6\u95f4\u6233\u5206\u6790<\/li>\n<li>\u6587\u4ef6\u8bbf\u95ee\u6a21\u5f0f\u6620\u5c04<\/li>\n<li>\u5df2\u5220\u9664\u6587\u4ef6\u6062\u590d\u6280\u672f<\/li>\n<li>\u6269\u5c55\u5c5e\u6027\u68c0\u67e5<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u8fdb\u5236\u53cd\u5411\u5de5\u7a0b\uff1a\n<ul>\n<li>\u4f7f\u7528radare2\u8fdb\u884c\u9759\u6001\u5206\u6790<\/li>\n<li>\u4f7f\u7528gdb\u8fdb\u884c\u52a8\u6001\u5206\u6790<\/li>\n<li>\u4ee3\u7801\u6d41\u7a0b\u91cd\u5efa<\/li>\n<li>API\u8c03\u7528\u8ffd\u8e2a\u548c\u5206\u6790<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2><strong>\u81ea\u52a8\u54cd\u5e94\u7cfb\u7edf<\/strong><\/h2>\n<p>\u73b0\u4ee3\u670d\u52a1\u5668\u73af\u5883\u9700\u8981\u590d\u6742\u7684\u81ea\u52a8\u54cd\u5e94\u673a\u5236\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u81ea\u52a8\u5b89\u5168\u7ec4\u4ef6\u7684\u8be6\u7ec6\u5206\u89e3\uff1a<\/p>\n<ul>\n<li>\u7528\u4e8e\u8fdb\u7a0b\u76d1\u63a7\u7684\u81ea\u5b9a\u4e49shell\u811a\u672c\uff1a\n<ul>\n<li>\u5b9e\u65f6\u8fdb\u7a0b\u7b7e\u540d\u9a8c\u8bc1\uff1a\n<pre>\r\n        while true; do\r\n            ps aux | awk '$3 > 80.0 || $4 > 80.0 {print}' >> \/var\/log\/high_usage.log\r\n            sleep 60\r\n        done\r\n        <\/pre>\n<\/li>\n<li>\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\u7684\u81ea\u52a8\u5a01\u80c1\u68c0\u6d4b<\/li>\n<li>\u8d44\u6e90\u4f7f\u7528\u8d8b\u52bf\u548c\u5f02\u5e38\u68c0\u6d4b<\/li>\n<li>\u4e0e\u73b0\u6709\u76d1\u63a7\u7cfb\u7edf\u96c6\u6210<\/li>\n<\/ul>\n<\/li>\n<li>\u81ea\u52a8\u9694\u79bb\u7a0b\u5e8f\uff1a\n<ul>\n<li>\u7f51\u7edc\u5206\u6bb5\u89e6\u53d1\u5668\uff1a\n<pre>\r\n        if [ $(netstat -an | grep ESTABLISHED | wc -l) -gt 1000 ]; then\r\n            iptables -A INPUT -p tcp --dport 80 -j DROP\r\n        fi\r\n        <\/pre>\n<\/li>\n<li>\u68c0\u6d4b\u65f6\u7684\u8fdb\u7a0b\u5bb9\u5668\u5316<\/li>\n<li>\u81ea\u52a8\u5907\u4efd\u542f\u52a8<\/li>\n<li>\u670d\u52a1\u6545\u969c\u8f6c\u79fb\u673a\u5236<\/li>\n<\/ul>\n<\/li>\n<li>\u8b66\u62a5\u5173\u8054\u7cfb\u7edf\uff1a\n<ul>\n<li>\u65e5\u5fd7\u805a\u5408\u548c\u6a21\u5f0f\u5339\u914d<\/li>\n<li>\u57fa\u4e8e\u673a\u5668\u5b66\u4e60\u7684\u5f02\u5e38\u68c0\u6d4b<\/li>\n<li>\u591a\u6e90\u4e8b\u4ef6\u5173\u8054<\/li>\n<li>\u81ea\u52a8\u4e8b\u4ef6\u5206\u7c7b<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8b\u4ef6\u62a5\u544a\u81ea\u52a8\u5316\uff1a\n<ul>\n<li>\u7ed3\u6784\u5316\u62a5\u544a\u751f\u6210<\/li>\n<li>\u8bc1\u636e\u6536\u96c6\u548c\u4fdd\u5b58<\/li>\n<li>\u5229\u76ca\u76f8\u5173\u8005\u901a\u77e5\u7cfb\u7edf<\/li>\n<li>\u5408\u89c4\u6587\u6863\u81ea\u52a8\u5316<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>\u9762\u5411\u672a\u6765\u7684\u5b89\u5168\u5806\u6808<\/strong><\/h2>\n<p>\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\u7684\u5b89\u5168\u9700\u8981\u6301\u7eed\u6f14\u8fdb\u3002\u4ee5\u4e0b\u662f\u7ef4\u62a4\u9762\u5411\u672a\u6765\u5b89\u5168\u7684\u5168\u9762\u65b9\u6cd5\uff1a<\/p>\n<ol>\n<li>\u65b0\u5174\u5a01\u80c1\u51c6\u5907\uff1a\n<ul>\n<li>AI\u9a71\u52a8\u7684\u5a01\u80c1\u68c0\u6d4b\u96c6\u6210<\/li>\n<li>\u96f6\u4fe1\u4efb\u67b6\u6784\u5b9e\u65bd<\/li>\n<li>\u91cf\u5b50\u5b89\u5168\u5bc6\u7801\u89c4\u5212<\/li>\n<li>\u5bb9\u5668\u5b89\u5168\u4f18\u5316<\/li>\n<\/ul>\n<\/li>\n<li>\u57fa\u7840\u8bbe\u65bd\u73b0\u4ee3\u5316\uff1a\n<ul>\n<li>\u5fae\u670d\u52a1\u5b89\u5168\u6a21\u5f0f<\/li>\n<li>\u65e0\u670d\u52a1\u5668\u5b89\u5168\u8003\u8651<\/li>\n<li>\u8fb9\u7f18\u8ba1\u7b97\u5b89\u5168\u63aa\u65bd<\/li>\n<li>\u4e91\u539f\u751f\u5b89\u5168\u96c6\u6210<\/li>\n<\/ul>\n<\/li>\n<li>\u5b89\u5168\u81ea\u52a8\u5316\u8fdb\u5c55\uff1a\n<ul>\n<li>GitOps\u5b89\u5168\u5de5\u4f5c\u6d41<\/li>\n<li>\u57fa\u7840\u8bbe\u65bd\u5373\u4ee3\u7801\uff08IaC\uff09\u5b89\u5168<\/li>\n<li>\u81ea\u52a8\u5316\u5408\u89c4\u68c0\u67e5<\/li>\n<li>\u5b89\u5168\u6d4b\u8bd5\u81ea\u52a8\u5316<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u5728\u9999\u6e2f\u52a8\u6001\u7684\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\u7ef4\u62a4\u5f3a\u5927\u7684\u670d\u52a1\u5668\u5b89\u5168\u9700\u8981\u6301\u7eed\u7684\u8b66\u60d5\u548c\u9002\u5e94\u3002\u5b9a\u671f\u5b89\u5168\u5ba1\u8ba1\u3001\u5168\u9762\u7684\u76d1\u63a7\u7cfb\u7edf\u548c\u590d\u6742\u7684\u4e8b\u4ef6\u54cd\u5e94\u7a0b\u5e8f\u6784\u6210\u4e86\u5b89\u5168\u57fa\u7840\u8bbe\u65bd\u7684\u57fa\u7840\u3002\u968f\u7740\u5a01\u80c1\u7684\u6f14\u53d8\uff0c\u6211\u4eec\u7684\u5b89\u5168\u5b9e\u8df5\u3001\u5de5\u5177\u548c\u65b9\u6cd5\u4e5f\u5fc5\u987b\u968f\u4e4b\u53d1\u5c55\u3002\u53ca\u65f6\u4e86\u89e3\u65b0\u5174\u5a01\u80c1\u3001\u7ef4\u62a4\u66f4\u65b0\u7684\u5b89\u5168\u534f\u8bae\uff0c\u5e76\u5b9a\u671f\u6d4b\u8bd5\u60a8\u7684\u4e8b\u4ef6\u54cd\u5e94\u80fd\u529b\uff0c\u4ee5\u786e\u4fdd\u5bf9\u670d\u52a1\u5668\u79df\u7528\u57fa\u7840\u8bbe\u65bd\u7684\u6700\u4f73\u4fdd\u62a4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7406\u89e3\u8fdb\u7a0b\u884c\u4e3a\u548c\u521d\u59cb\u68c0\u6d4b \u670d\u52a1\u5668\u5b89\u5168\u4ecd\u7136\u662f\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\u7684\u91cd\u8981\u5173\u6ce8\u70b9\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u53ef\u80fd\u8868\u660e\u6f5c\u5728\u5b89\u5168\u6f0f\u6d1e\u7684\u5f02\u5e38\u8fdb\u7a0b\u65f6\u3002\u968f\u7740\u7f51\u7edc\u5a01\u80c1\u7684\u6f14\u53d8\uff0c\u7cfb\u7edf\u7ba1\u7406\u5458\u5fc5\u987b\u4fdd\u6301\u8b66\u60d5\uff0c\u76d1\u63a7\u548c\u54cd\u5e94\u53ef\u7591\u6d3b\u52a8\u3002\u672c\u7efc\u5408\u6280\u672f\u6307\u5357\u63a2\u8ba8\u4e86\u670d\u52a1\u5668\u73af\u5883\u4e2d\u8fdb\u7a0b\u5206\u6790\u548c\u98ce\u9669\u7f13\u89e3\u7684\u9ad8\u7ea7\u65b9\u6cd5\uff0c\u7279\u522b\u5173\u6ce8\u9999\u6e2f\u9ad8\u901f\u3001\u9ad8\u5bc6\u5ea6\u670d\u52a1\u5668\u79df\u7528\u57fa\u7840\u8bbe\u65bd\u6240\u9762\u4e34\u7684\u72ec\u7279\u6311\u6218\u3002\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8\u547d\u4ee4\u884c\u5de5\u5177\u3001\u7cfb\u7edf\u76d1\u63a7\u6280\u672f\u548c\u5feb\u901f\u54cd\u5e94\u534f\u8bae\uff0c\u8fd9\u4e9b\u90fd\u662f\u5728\u5f53\u4eca\u5a01\u80c1\u73af\u5883\u4e2d\u7ef4\u62a4\u670d\u52a1\u5668\u5b8c\u6574\u6027\u7684\u5173\u952e\u8981\u7d20\u3002 \u53ef\u7591\u8fdb\u7a0b\u7684\u5173\u952e\u6307\u6807 \u7406\u89e3\u6076\u610f\u8fdb\u7a0b\u7684\u5178\u578b\u7279\u5f81\u9700\u8981\u7ecf\u9a8c\u548c\u7cfb\u7edf\u6027\u89c2\u5bdf\u3002\u4ee5\u4e0b\u662f\u9700\u8981\u76d1\u63a7\u7684\u5173\u952e\u6307\u6807\uff1a \u610f\u5916\u7684\u9ad8CPU\u4f7f\u7528\u7387\u6a21\u5f0f\uff0c\u7279\u522b\u662f\u5728\u975e\u9ad8\u5cf0\u65f6\u6bb5\u6216\u6765\u81ea\u4e0d\u719f\u6089\u7684\u8fdb\u7a0b \u4e0e\u6b63\u5e38\u5e94\u7528\u7a0b\u5e8f\u884c\u4e3a\u4e0d\u7b26\u7684\u5f02\u5e38\u5185\u5b58\u6d88\u8017\u66f2\u7ebf \u4e0d\u89c4\u5219\u7684\u7f51\u7edc\u6d41\u91cf\u7279\u5f81\uff0c\u7279\u522b\u662f\u4e0e\u672a\u77e5\u7ec8\u7aef\u7684\u51fa\u7ad9\u8fde\u63a5 \u7cfb\u7edf\u76ee\u5f55\u6216\u610f\u5916\u4f4d\u7f6e\u7684\u672a\u6388\u6743\u6587\u4ef6\u7cfb\u7edf\u4fee\u6539 \u6a21\u4eff\u5408\u6cd5\u7cfb\u7edf\u8fdb\u7a0b\u7684\u53ef\u7591\u8fdb\u7a0b\u540d\u79f0\u6216\u4f4d\u7f6e \u504f\u79bb\u6b63\u5e38\u7cfb\u7edf\u884c\u4e3a\u7684\u5f02\u5e38\u7236\u5b50\u8fdb\u7a0b\u5173\u7cfb \u5728\u610f\u5916\u7528\u6237\u4e0a\u4e0b\u6587\u4e2d\u8fd0\u884c\u6216\u5177\u6709\u63d0\u5347\u6743\u9650\u7684\u8fdb\u7a0b \u8fdb\u7a0b\u7ef4\u62a4\u7684\u5f02\u5e38\u6587\u4ef6\u53e5\u67c4\u6216\u5957\u63a5\u5b57\u8fde\u63a5 \u57fa\u672c\u8bca\u65ad\u547d\u4ee4 \u4e3a\u4e86\u8fdb\u884c\u6709\u6548\u7684\u8fdb\u7a0b\u5206\u6790\uff0c\u9700\u8981\u638c\u63e1\u8fd9\u4e9b\u57fa\u672c\u547d\u4ee4\u5e76\u7406\u89e3\u5176\u9ad8\u7ea7\u4f7f\u7528\u6a21\u5f0f\uff1a top -c -p $(pgrep -d&#8217;,&#8217; -f suspicious_pattern) &#8211; \u63d0\u4f9b\u5b9e\u65f6\u8fdb\u7a0b\u76d1\u63a7\uff0c\u652f\u6301\u81ea\u5b9a\u4e49\u8fdb\u7a0b\u9009\u62e9 ps aux | grep -i [process_pattern] &#8211; \u63d0\u4f9b\u8be6\u7ec6\u7684\u8fdb\u7a0b\u4fe1\u606f\uff0c\u652f\u6301\u7075\u6d3b\u7684\u6a21\u5f0f\u5339\u914d lsof -p [pid] &#8211; \u68c0\u67e5\u7279\u5b9a\u8fdb\u7a0b\u7684\u6240\u6709\u6587\u4ef6\u53e5\u67c4\u548c\u7f51\u7edc\u8fde\u63a5 strace -p [pid] &#8211; \u76d1\u63a7\u7cfb\u7edf\u8c03\u7528\u548c\u4fe1\u53f7\u4ee5\u8fdb\u884c\u6df1\u5ea6\u8fdb\u7a0b\u884c\u4e3a\u5206\u6790 netstat -tupln &#8211; \u6620\u5c04\u6240\u6709\u6d3b\u52a8\u7684\u7f51\u7edc\u8fde\u63a5\u548c\u76d1\u542c\u7aef\u53e3 iotop -o -P -k &#8211; \u5b9e\u65f6\u76d1\u63a7\u8fdb\u7a0b\u7684\u78c1\u76d8I\/O\u4f7f\u7528\u60c5\u51b5 pidstat -d -p [pid] [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/www.varidata.com\/zh-cn\/blog\/troubleshooting-abnormal-processes-on-hong-kong-servers\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":11,"featured_media":27242,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[76],"tags":[],"class_list":["post-27248","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u9999\u6e2f\u670d\u52a1\u5668\u5f02\u5e38\u8fdb\u7a0b\u6545\u969c\u6392\u67e5<\/title>\n<meta name=\"description\" content=\"\u5b66\u4e60\u5728\u9999\u6e2f\u670d\u52a1\u5668\u4e0a\u8bc6\u522b\u548c\u6d88\u9664\u53ef\u7591\u8fdb\u7a0b\u7684\u9ad8\u7ea7\u6280\u672f\u3002\u5305\u542b\u9010\u6b65\u5206\u6790\u3001\u5b9e\u9645\u6848\u4f8b\u548c\u9884\u9632\u63aa\u65bd\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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