{"id":82090,"date":"2026-07-25T06:36:40","date_gmt":"2026-07-24T22:36:40","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/82090.html"},"modified":"2026-07-25T06:36:40","modified_gmt":"2026-07-24T22:36:40","slug":"%e6%9c%8d%e5%8a%a1%e5%99%a8%e9%81%ad%e9%bb%91%e5%ae%a2%e6%94%bb%e5%87%bb%ef%bc%9f%e4%b8%80%e5%a5%97%e5%ae%8c%e6%95%b4%e5%ba%94%e6%80%a5%e5%a4%84%e7%bd%ae%e6%96%b9%e6%a1%88%ef%bc%88%e9%99%84%e5%ae%9e","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/82090.html","title":{"rendered":"\u670d\u52a1\u5668\u906d\u9ed1\u5ba2\u653b\u51fb\uff1f\u4e00\u5957\u5b8c\u6574\u5e94\u6025\u5904\u7f6e\u65b9\u6848\uff08\u9644\u5b9e\u64cd\u547d\u4ee4\uff09"},"content":{"rendered":"<p>\u4f5c\u4e3a\u8fd0\u7ef4\u5de5\u7a0b\u5e08\u6216\u5f00\u53d1\u8005&#xff0c;\u6700\u68d8\u624b\u7684\u573a\u666f\u83ab\u8fc7\u4e8e&#xff1a;\u670d\u52a1\u5668CPU\u98d9\u5347\u3001\u7f51\u7ad9\u88ab\u6302\u9ed1\u94fe\u3001\u6570\u636e\u88ab\u52a0\u5bc6\u52d2\u7d22&#xff0c;\u751a\u81f3\u6ca6\u4e3a\u9ed1\u5ba2\u7684\u201c\u8089\u9e21\u201d\u75af\u72c2\u5bf9\u5916\u53d1\u5305\u2014\u2014\u8fd9\u4e9b\u90fd\u662f\u670d\u52a1\u5668\u906d\u9047\u9ed1\u5ba2\u653b\u51fb\u7684\u5178\u578b\u5f81\u5146\u3002\u5f88\u591a\u4eba\u9047\u5230\u8fd9\u79cd\u60c5\u51b5\u4f1a\u614c\u4e86\u624b\u811a&#xff0c;\u8981\u4e48\u76f2\u76ee\u91cd\u542f\u670d\u52a1\u5668&#xff0c;\u8981\u4e48\u968f\u610f\u5220\u9664\u6587\u4ef6&#xff0c;\u53cd\u800c\u5bfc\u81f4\u5165\u4fb5\u75d5\u8ff9\u88ab\u9500\u6bc1\u3001\u6570\u636e\u5f7b\u5e95\u4e22\u5931&#xff0c;\u751a\u81f3\u6269\u5927\u653b\u51fb\u5f71\u54cd\u3002<\/p>\n<p>\u5176\u5b9e&#xff0c;\u670d\u52a1\u5668\u88ab\u653b\u51fb\u5e76\u4e0d\u53ef\u6015&#xff0c;\u5173\u952e\u662f\u638c\u63e1\u201c\u79d1\u5b66\u5904\u7f6e\u3001\u7cbe\u51c6\u6eaf\u6e90\u3001\u5f7b\u5e95\u52a0\u56fa\u201d\u7684\u6838\u5fc3\u903b\u8f91&#xff0c;\u5728\u9ec4\u91d1\u65f6\u95f4\u5185\u63a7\u5236\u98ce\u9669\u3001\u51cf\u5c11\u635f\u5931\u3002\u672c\u6587\u7ed3\u5408\u591a\u5e74\u4e00\u7ebf\u8fd0\u7ef4\u5b9e\u6218\u7ecf\u9a8c&#xff0c;\u6574\u7406\u4e86\u4e00\u5957\u53ef\u76f4\u63a5\u843d\u5730\u7684\u5e94\u6025\u5904\u7f6e\u6d41\u7a0b&#xff0c;\u4ece\u5165\u4fb5\u8bc6\u522b\u5230\u957f\u6548\u9632\u62a4&#xff0c;\u6bcf\u4e00\u6b65\u90fd\u9644\u5e26\u5b9e\u64cd\u547d\u4ee4\u548c\u907f\u5751\u8981\u70b9&#xff0c;\u9002\u5408\u6240\u6709\u8fd0\u7ef4\u4ece\u4e1a\u8005\u3001\u5f00\u53d1\u8005\u6536\u85cf\u5907\u7528&#xff0c;\u518d\u4e5f\u4e0d\u7528\u9762\u5bf9\u653b\u51fb\u65f6\u624b\u8db3\u65e0\u63aa\u3002<\/p>\n<h3>\u4e00\u3001\u5148\u5224\u660e&#xff1a;\u8fd9\u4e9b\u4fe1\u53f7&#xff0c;\u8bf4\u660e\u670d\u52a1\u5668\u5927\u6982\u7387\u88ab\u5165\u4fb5\u4e86<\/h3>\n<p>\u5728\u52a8\u624b\u5904\u7f6e\u524d&#xff0c;\u9996\u5148\u8981\u786e\u8ba4\u670d\u52a1\u5668\u662f\u5426\u771f\u7684\u88ab\u653b\u51fb&#xff0c;\u907f\u514d\u8bef\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u6700\u5e38\u89c1\u7684\u5165\u4fb5\u8ff9\u8c61&#xff0c;\u8986\u76d6\u7cfb\u7edf\u3001\u7f51\u7edc\u3001\u8fdb\u7a0b\u4e09\u5927\u5c42\u9762&#xff0c;\u65b0\u624b\u4e5f\u80fd\u5feb\u901f\u8bc6\u522b&#xff1a;<\/p>\n<h4>1. \u7cfb\u7edf\u5c42\u9762\u5f02\u5e38<\/h4>\n<ul>\n<li>\n<p>CPU\u3001\u5185\u5b58\u4f7f\u7528\u7387\u5f02\u5e38\u98d9\u5347&#xff08;\u6bd4\u5982\u7a81\u7136\u62c9\u6ee1100%&#xff09;&#xff0c;\u4e14\u65e0\u6cd5\u901a\u8fc7\u5e38\u89c4\u8fdb\u7a0b\u7ec8\u6b62\u7f13\u89e3&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u78c1\u76d8\u7a7a\u95f4\u83ab\u540d\u9aa4\u51cf&#xff0c;\u751a\u81f3\u51fa\u73b0\u5927\u91cf\u672a\u77e5\u6587\u4ef6\u3001\u9690\u85cf\u76ee\u5f55&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u767b\u5f55\u5f02\u5e38&#xff1a;\u51fa\u73b0\u964c\u751f\u767b\u5f55\u8bb0\u5f55\u3001\u65b0\u589e\u672a\u77e5\u7528\u6237&#xff0c;\u6216root\u7528\u6237\u6743\u9650\u88ab\u7be1\u6539&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u7cfb\u7edf\u914d\u7f6e\u6587\u4ef6&#xff08;\u5982\/etc\/ssh\/sshd_config&#xff09;\u88ab\u64c5\u81ea\u4fee\u6539&#xff0c;SSH\u767b\u5f55\u89c4\u5219\u5f02\u5e38\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>2. \u7f51\u7edc\u5c42\u9762\u5f02\u5e38<\/h4>\n<ul>\n<li>\n<p>\u670d\u52a1\u5668\u5bf9\u5916\u53d1\u8d77\u5927\u91cf\u5f02\u5e38\u8fde\u63a5&#xff0c;\u5e26\u5bbd\u88ab\u5360\u6ee1&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u7aef\u53e3\u5f02\u5e38\u5f00\u653e&#xff0c;\u5c24\u5176\u662f\u5e38\u89c1\u653b\u51fb\u7aef\u53e3&#xff08;\u598222\u30013389\u30013306&#xff09;\u51fa\u73b0\u975e\u6388\u6743\u76d1\u542c&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u7f51\u7ad9\u65e0\u6cd5\u8bbf\u95ee&#xff0c;\u6216\u8bbf\u95ee\u540e\u8df3\u8f6c\u81f3\u964c\u751f\u9875\u9762&#xff08;\u88ab\u6302\u9ed1\u94fe\u3001\u690d\u5165\u6076\u610f\u5e7f\u544a&#xff09;\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>3. \u8fdb\u7a0b\u5c42\u9762\u5f02\u5e38<\/h4>\n<ul>\n<li>\n<p>\u51fa\u73b0\u540d\u79f0\u6a21\u7cca\u3001\u65e0\u6cd5\u8bc6\u522b\u7684\u8fdb\u7a0b&#xff0c;\u4e14\u65e0\u6cd5\u6b63\u5e38\u7ec8\u6b62&#xff08;\u5f3a\u884ckill\u540e\u81ea\u52a8\u91cd\u542f&#xff09;&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u8fdb\u7a0b\u5360\u7528\u8d44\u6e90\u5f02\u5e38&#xff0c;\u6bd4\u5982\u4e0d\u77e5\u540d\u8fdb\u7a0b\u957f\u671f\u5360\u7528\u9ad8CPU\u3001\u9ad8\u5185\u5b58&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u5b58\u5728\u6316\u77ff\u8fdb\u7a0b&#xff08;\u540d\u79f0\u542bbitcoin\u3001mining\u3001crypto\u7b49\u5173\u952e\u8bcd&#xff09;&#xff0c;\u670d\u52a1\u5668\u6ca6\u4e3a\u77ff\u673a\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>\u5b9e\u64cd\u68c0\u6d4b\u547d\u4ee4&#xff08;\u76f4\u63a5\u590d\u5236\u6267\u884c&#xff09;<\/h4>\n<p># 1. \u67e5\u770bCPU\u5360\u7528TOP10\u8fdb\u7a0b&#xff08;\u6392\u67e5\u5f02\u5e38\u8fdb\u7a0b&#xff09; ps aux &#8211;sort&#061;-%cpu | head -11 # 2. \u67e5\u770b\u5f02\u5e38\u7f51\u7edc\u8fde\u63a5&#xff08;ESTABLISHED\u8868\u793a\u5df2\u5efa\u7acb\u8fde\u63a5&#xff09; netstat -antp | grep ESTABLISHED ss -tulpn | grep -E &#034;:22|:3306&#034; # \u91cd\u70b9\u68c0\u67e5\u5e38\u7528\u7aef\u53e3\u8fde\u63a5 # 3. \u67e5\u770b\u6700\u8fd110\u6761\u767b\u5f55\u8bb0\u5f55&#xff08;\u6392\u67e5\u964c\u751f\u767b\u5f55&#xff09; last | head -10 # 4. \u67e5\u627e\u6700\u8fd11\u5929\u5185\u4fee\u6539\u7684\u6587\u4ef6&#xff08;\u6392\u67e5\u6076\u610f\u6587\u4ef6&#xff09; find \/ -mtime -1 -ls 2&gt;\/dev\/null<\/p>\n<p>\u63d0\u9192&#xff1a;\u4e00\u65e6\u68c0\u6d4b\u5230\u4ee5\u4e0a\u4efb\u610f2\u79cd\u53ca\u4ee5\u4e0a\u5f02\u5e38&#xff0c;\u7acb\u5373\u505c\u6b62\u5bf9\u670d\u52a1\u5668\u7684\u5e38\u89c4\u64cd\u4f5c&#xff0c;\u8fdb\u5165\u5e94\u6025\u5904\u7f6e\u6d41\u7a0b&#xff0c;\u5207\u52ff\u91cd\u542f\u670d\u52a1\u5668&#xff08;\u4f1a\u9500\u6bc1\u5185\u5b58\u4e2d\u7684\u5165\u4fb5\u75d5\u8ff9&#xff09;\u3002<\/p>\n<h3>\u4e8c\u3001\u9ec4\u91d130\u5206\u949f&#xff1a;\u5e94\u6025\u5904\u7f6e\u6838\u5fc3\u6b65\u9aa4&#xff08;\u5148\u6b62\u635f&#xff0c;\u518d\u6eaf\u6e90&#xff09;<\/h3>\n<p>\u5e94\u6025\u5904\u7f6e\u7684\u6838\u5fc3\u539f\u5219\u662f&#xff1a;\u5148\u9694\u79bb\u3001\u518d\u53d6\u8bc1\u3001\u540e\u6e05\u7406&#xff0c;\u575a\u51b3\u907f\u514d\u201c\u76f2\u76ee\u64cd\u4f5c\u6269\u5927\u635f\u5931\u201d\u3002\u8fd9\u4e00\u6b65\u7684\u76ee\u6807\u662f\u5feb\u901f\u963b\u65ad\u9ed1\u5ba2\u7684\u63a7\u5236\u901a\u9053&#xff0c;\u4fdd\u62a4\u73b0\u573a\u8bc1\u636e&#xff0c;\u4e3a\u540e\u7eed\u6eaf\u6e90\u548c\u6062\u590d\u6253\u4e0b\u57fa\u7840\u3002<\/p>\n<h4>\u6b65\u9aa41&#xff1a;\u7acb\u5373\u9694\u79bb&#xff0c;\u5207\u65ad\u653b\u51fb\u901a\u9053&#xff08;\u6700\u5173\u952e\u4e00\u6b65&#xff09;<\/h4>\n<p>\u9694\u79bb\u7684\u76ee\u7684\u662f\u963b\u6b62\u9ed1\u5ba2\u7ee7\u7eed\u64cd\u63a7\u670d\u52a1\u5668\u3001\u7a83\u53d6\u6570\u636e\u6216\u6269\u6563\u653b\u51fb&#xff0c;\u6838\u5fc3\u662f\u201c\u65ad\u7f51\u4f46\u4e0d\u5173\u673a\u201d\u2014\u2014\u5173\u673a\u4f1a\u4e22\u5931\u5185\u5b58\u4e2d\u7684\u5165\u4fb5\u75d5\u8ff9&#xff0c;\u7ed9\u540e\u7eed\u6eaf\u6e90\u5e26\u6765\u6781\u5927\u56f0\u96be\u3002<\/p>\n<h5>\u5b9e\u64cd\u65b9\u6848&#xff08;\u4e8c\u9009\u4e00&#xff0c;\u4f18\u5148\u9009\u7269\u7406\u65ad\u7f51&#xff09;<\/h5>\n<li>\n<p>\u7269\u7406\u65ad\u7f51&#xff08;\u63a8\u8350&#xff09;&#xff1a;\u76f4\u63a5\u62d4\u6389\u670d\u52a1\u5668\u7f51\u7ebf&#xff0c;\u6216\u5728\u4e91\u63a7\u5236\u53f0\u5173\u95ed\u670d\u52a1\u5668\u516c\u7f51\u8bbf\u95ee&#xff08;\u7981\u6b62\u6240\u6709\u5165\u7ad9\u3001\u51fa\u7ad9\u6d41\u91cf&#xff09;&#xff0c;\u5f7b\u5e95\u5207\u65ad\u4e0e\u5916\u90e8\u7684\u8fde\u63a5&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u8f6f\u4ef6\u65ad\u7f51&#xff08;\u65e0\u7269\u7406\u64cd\u4f5c\u6743\u9650\u65f6&#xff09;&#xff1a;\u901a\u8fc7\u547d\u4ee4\u4e34\u65f6\u963b\u65ad\u6240\u6709\u7f51\u7edc\u8fde\u63a5&#xff0c;\u4fdd\u7559\u5185\u5b58\u6570\u636e&#xff1a; # \u963b\u65ad\u6240\u6709\u5165\u7ad9\u3001\u51fa\u7ad9\u6d41\u91cf iptables -A INPUT -j DROP iptables -A OUTPUT -j DROP # \u6216\u5173\u95ed\u7f51\u5361&#xff08;\u4e34\u65f6&#xff0c;\u91cd\u542f\u540e\u6062\u590d&#xff09; ifconfig eth0 down<\/p>\n<\/li>\n<p>\u8865\u5145&#xff1a;\u5982\u679c\u670d\u52a1\u5668\u90e8\u7f72\u4e86\u6838\u5fc3\u4e1a\u52a1&#xff0c;\u65e0\u6cd5\u5b8c\u5168\u65ad\u7f51&#xff0c;\u53ef\u4e34\u65f6\u53ea\u5f00\u653e\u4e1a\u52a1\u5fc5\u9700\u7aef\u53e3&#xff08;\u598280\u3001443&#xff09;&#xff0c;\u5e76\u9650\u5236\u8bbf\u95ee\u6e90IP\u4e3a\u5408\u6cd5\u5730\u5740&#xff0c;\u540c\u65f6\u5173\u95edSSH\u3001\u6570\u636e\u5e93\u7b49\u7ba1\u7406\u7aef\u53e3\u7684\u516c\u7f51\u8bbf\u95ee\u3002<\/p>\n<h4>\u6b65\u9aa42&#xff1a;\u5b8c\u6574\u53d6\u8bc1&#xff0c;\u7559\u5b58\u5165\u4fb5\u75d5\u8ff9<\/h4>\n<p>\u53d6\u8bc1\u662f\u540e\u7eed\u6eaf\u6e90\u9ed1\u5ba2\u3001\u5b9a\u4f4d\u653b\u51fb\u65b9\u5f0f\u7684\u5173\u952e&#xff0c;\u4e5f\u662f\u5e94\u5bf9\u53ef\u80fd\u7684\u6cd5\u5f8b\u7ea0\u7eb7\u7684\u91cd\u8981\u4f9d\u636e\u3002\u53d6\u8bc1\u6838\u5fc3\u662f\u201c\u5168\u9762\u6536\u96c6\u3001\u59a5\u5584\u4fdd\u5b58\u201d&#xff0c;\u4e0d\u9057\u6f0f\u4efb\u4f55\u5173\u952e\u75d5\u8ff9\u3002<\/p>\n<h5>\u6838\u5fc3\u53d6\u8bc1\u5185\u5bb9\u53ca\u5b9e\u64cd\u547d\u4ee4<\/h5>\n<li>\n<p>\u7cfb\u7edf\u72b6\u6001\u5feb\u7167&#xff1a;\u521b\u5efa\u5e94\u6025\u76ee\u5f55&#xff0c;\u6536\u96c6\u7cfb\u7edf\u57fa\u672c\u4fe1\u606f\u3001\u7528\u6237\u6743\u9650\u3001\u670d\u52a1\u72b6\u6001\u7b49 # \u521b\u5efa\u5e94\u6025\u53d6\u8bc1\u76ee\u5f55&#xff08;\u6309\u65f6\u95f4\u547d\u540d&#xff0c;\u4fbf\u4e8e\u533a\u5206&#xff09; mkdir -p \/tmp\/incident_$(date &#043;%Y%m%d_%H%M%S) cd \/tmp\/incident_$(date &#043;%Y%m%d_%H%M%S) # \u6536\u96c6\u7cfb\u7edf\u57fa\u672c\u4fe1\u606f uname -a &gt; system_info.txt cat \/proc\/version &gt;&gt; system_info.txt # \u6536\u96c6\u7528\u6237\u548c\u6743\u9650\u4fe1\u606f&#xff08;\u6392\u67e5\u964c\u751f\u7528\u6237&#xff09; cat \/etc\/passwd &gt; users.txt cat \/etc\/group &gt; groups.txt cat \/etc\/shadow &gt; shadow.txt 2&gt;\/dev\/null # \u6536\u96c6\u670d\u52a1\u548c\u542f\u52a8\u9879&#xff08;\u6392\u67e5\u6076\u610f\u670d\u52a1&#xff09; systemctl list-units &#8211;type&#061;service &gt; services.txt crontab -l &gt; crontab.txt 2&gt;\/dev\/null cat \/etc\/crontab &gt;&gt; crontab.txt<\/p>\n<\/li>\n<li>\n<p>\u8fdb\u7a0b\u4e0e\u7f51\u7edc\u53d6\u8bc1&#xff1a;\u6536\u96c6\u5f53\u524d\u8fdb\u7a0b\u3001\u7f51\u7edc\u8fde\u63a5\u3001\u5f00\u653e\u7aef\u53e3\u7b49\u4fe1\u606f # \u6536\u96c6\u8be6\u7ec6\u8fdb\u7a0b\u4fe1\u606f&#xff08;\u542b\u5b8c\u6574\u547d\u4ee4\u884c&#xff09; ps auxwww &gt; processes.txt pstree -p &gt; process_tree.txt # \u6536\u96c6\u7f51\u7edc\u8fde\u63a5\u8be6\u60c5 netstat -antp &gt; network_connections.txt ss -tuln &gt; socket_stats.txt # \u6536\u96c6\u7f51\u7edc\u6d41\u91cf\u5feb\u7167&#xff08;\u9700\u5b89\u88c5tcpdump&#xff09; tcpdump -i eth0 -w network_traffic.pcap -c 10000<\/p>\n<\/li>\n<li>\n<p>\u65e5\u5fd7\u53d6\u8bc1&#xff1a;\u5907\u4efd\u6838\u5fc3\u65e5\u5fd7&#xff08;\u65e5\u5fd7\u662f\u5165\u4fb5\u6eaf\u6e90\u7684\u201c\u7b2c\u4e00\u7ebf\u7d22\u201d&#xff09; # \u521b\u5efa\u65e5\u5fd7\u5907\u4efd\u76ee\u5f55 mkdir logs # \u5907\u4efd\u7cfb\u7edf\u767b\u5f55\u65e5\u5fd7&#xff08;\u91cd\u70b9\u6392\u67e5\u767b\u5f55\u5f02\u5e38&#xff09; cp \/var\/log\/secure logs\/ 2&gt;\/dev\/null cp \/var\/log\/auth.log logs\/ 2&gt;\/dev\/null # \u5907\u4efd\u7cfb\u7edf\u4e8b\u4ef6\u65e5\u5fd7 cp \/var\/log\/messages logs\/ 2&gt;\/dev\/null cp \/var\/log\/syslog logs\/ 2&gt;\/dev\/null # \u5907\u4efdWeb\u670d\u52a1\u5668\u65e5\u5fd7&#xff08;\u6392\u67e5Web\u653b\u51fb&#xff09; cp \/var\/log\/nginx\/access.log logs\/ 2&gt;\/dev\/null cp \/var\/log\/apache2\/access.log logs\/ 2&gt;\/dev\/null # \u5907\u4efd\u7528\u6237\u64cd\u4f5c\u65e5\u5fd7&#xff08;\u6392\u67e5\u6076\u610f\u547d\u4ee4&#xff09; cp ~\/.bash_history logs\/ 2&gt;\/dev\/null<\/p>\n<\/li>\n<p>\u53d6\u8bc1\u5b8c\u6210\u540e&#xff0c;\u5c06\/tmp\/incident_xxx\u76ee\u5f55\u6253\u5305\u538b\u7f29&#xff0c;\u590d\u5236\u5230\u5b89\u5168\u7684\u79bb\u7ebf\u8bbe\u5907&#xff08;\u5982U\u76d8\u3001\u53e6\u4e00\u53f0\u672a\u8054\u7f51\u670d\u52a1\u5668&#xff09;&#xff0c;\u5207\u52ff\u5728\u88ab\u5165\u4fb5\u670d\u52a1\u5668\u4e0a\u5220\u9664\u6216\u4fee\u6539\u53d6\u8bc1\u6587\u4ef6\u3002<\/p>\n<h4>\u6b65\u9aa43&#xff1a;\u7cbe\u51c6\u6e05\u7406&#xff0c;\u5f7b\u5e95\u6e05\u9664\u5165\u4fb5\u75d5\u8ff9<\/h4>\n<p>\u6e05\u7406\u7684\u6838\u5fc3\u662f\u201c\u5b9a\u4f4d\u6076\u610f\u6587\u4ef6\u3001\u7ec8\u6b62\u6076\u610f\u8fdb\u7a0b\u3001\u5220\u9664\u975e\u6cd5\u7528\u6237\u201d&#xff0c;\u4f46\u9700\u6ce8\u610f&#xff1a;\u6e05\u7406\u524d\u52a1\u5fc5\u518d\u6b21\u786e\u8ba4\u53d6\u8bc1\u5b8c\u6210&#xff0c;\u907f\u514d\u8bef\u5220\u7cfb\u7edf\u6b63\u5e38\u6587\u4ef6\u3002<\/p>\n<h5>3\u4e2a\u6838\u5fc3\u6e05\u7406\u64cd\u4f5c<\/h5>\n<li>\n<p>\u7ec8\u6b62\u6076\u610f\u8fdb\u7a0b&#xff1a;\u5148\u901a\u8fc7ps\u3001top\u547d\u4ee4\u5b9a\u4f4d\u6076\u610f\u8fdb\u7a0bID&#xff08;PID&#xff09;&#xff0c;\u518d\u5f3a\u884c\u7ec8\u6b62&#xff0c;\u82e5\u7ec8\u6b62\u540e\u81ea\u52a8\u91cd\u542f&#xff0c;\u9700\u6392\u67e5\u662f\u5426\u5b58\u5728\u5b88\u62a4\u8fdb\u7a0b\u6216\u5b9a\u65f6\u4efb\u52a1 # \u67e5\u627e\u542b\u5173\u952e\u8bcd\u7684\u6076\u610f\u8fdb\u7a0b&#xff08;\u5982\u6316\u77ff\u3001\u6728\u9a6c&#xff09; ps aux | grep -E &#034;(bitcoin|mining|crypto|malware)&#034; # \u5f3a\u884c\u7ec8\u6b62\u6076\u610f\u8fdb\u7a0b&#xff08;\u66ff\u6362PID\u4e3a\u5b9e\u9645\u8fdb\u7a0bID&#xff09; kill -9 PID # \u6392\u67e5\u5e76\u5220\u9664\u6076\u610f\u5b9a\u65f6\u4efb\u52a1&#xff08;\u9632\u6b62\u8fdb\u7a0b\u91cd\u542f&#xff09; crontab -r # \u6e05\u7a7a\u5f53\u524d\u7528\u6237\u5b9a\u65f6\u4efb\u52a1&#xff08;\u8c28\u614e\u4f7f\u7528&#xff0c;\u9700\u5148\u5907\u4efd&#xff09; rm -rf \/etc\/cron.d\/* # \u5220\u9664\u7cfb\u7edf\u7ea7\u6076\u610f\u5b9a\u65f6\u4efb\u52a1&#xff08;\u9700\u786e\u8ba4&#xff09;<\/p>\n<\/li>\n<li>\n<p>\u5220\u9664\u6076\u610f\u6587\u4ef6\u4e0e\u975e\u6cd5\u7528\u6237&#xff1a; # \u67e5\u627e\u5e76\u5220\u9664\u6700\u8fd1\u65b0\u589e\u7684\u6076\u610f\u6587\u4ef6&#xff08;\u6309\u5927\u5c0f\u6392\u5e8f&#xff0c;\u91cd\u70b9\u6392\u67e5\/tmp\u3001\/var\/tmp\u76ee\u5f55&#xff09; find \/ -mtime -3 -size &#043;10M -type f -exec ls -l {} \\\\; 2&gt;\/dev\/null # \u5220\u9664\u6076\u610f\u6587\u4ef6&#xff08;\u66ff\u6362\u4e3a\u5b9e\u9645\u6587\u4ef6\u8def\u5f84&#xff09; rm -rf \/path\/to\/malicious\/file # \u5220\u9664\u975e\u6cd5\u7528\u6237&#xff08;\u66ff\u6362username\u4e3a\u964c\u751f\u7528\u6237\u540d&#xff09; userdel -r username # \u6e05\u9664\u7a7a\u53e3\u4ee4\u7528\u6237&#xff08;\u907f\u514d\u9ed1\u5ba2\u518d\u6b21\u767b\u5f55&#xff09; awk -F: &#039;($2 &#061;&#061; &#034;&#034;) {print $1}&#039; \/etc\/shadow | xargs -I {} userdel -r {}<\/p>\n<\/li>\n<li>\n<p>\u4fee\u590d\u88ab\u7be1\u6539\u7684\u7cfb\u7edf\u914d\u7f6e&#xff1a;\u91cd\u70b9\u68c0\u67e5SSH\u914d\u7f6e\u3001hosts\u6587\u4ef6\u3001Web\u914d\u7f6e\u7b49&#xff0c;\u6062\u590d\u4e3a\u6b63\u5e38\u914d\u7f6e # \u6062\u590dSSH\u9ed8\u8ba4\u914d\u7f6e&#xff08;\u82e5\u88ab\u7be1\u6539&#xff09; cp \/etc\/ssh\/sshd_config.bak \/etc\/ssh\/sshd_config 2&gt;\/dev\/null # \u91cd\u542fSSH\u670d\u52a1 systemctl restart sshd # \u4fee\u590dhosts\u6587\u4ef6&#xff08;\u6e05\u9664\u6076\u610f\u57df\u540d\u89e3\u6790&#xff09; echo &#034;127.0.0.1 localhost&#034; &gt; \/etc\/hosts # \u6062\u590dWeb\u7f51\u7ad9\u6587\u4ef6&#xff08;\u4ece\u5907\u4efd\u4e2d\u8fd8\u539f&#xff0c;\u907f\u514d\u4f7f\u7528\u88ab\u7be1\u6539\u7684\u6587\u4ef6&#xff09;<\/p>\n<\/li>\n<p>\u907f\u5751\u63d0\u9192&#xff1a;\u82e5\u4e0d\u786e\u5b9a\u6587\u4ef6\u662f\u5426\u4e3a\u6076\u610f&#xff0c;\u5207\u52ff\u968f\u610f\u5220\u9664&#xff0c;\u53ef\u5148\u91cd\u547d\u540d&#xff08;\u5982mv file file.bak&#xff09;&#xff0c;\u6d4b\u8bd5\u7cfb\u7edf\u662f\u5426\u6b63\u5e38\u8fd0\u884c\u540e\u518d\u51b3\u5b9a\u662f\u5426\u5220\u9664&#xff1b;\u5bf9\u4e8e\u6838\u5fc3\u4e1a\u52a1\u670d\u52a1\u5668&#xff0c;\u5efa\u8bae\u4f18\u5148\u9009\u62e9\u201c\u91cd\u65b0\u5b89\u88c5\u7cfb\u7edf\u201d&#xff0c;\u5f7b\u5e95\u6e05\u9664\u9690\u85cf\u7684\u540e\u95e8\u7a0b\u5e8f\u3002<\/p>\n<h3>\u4e09\u3001\u6eaf\u6e90\u5206\u6790&#xff1a;\u627e\u5230\u653b\u51fb\u6e90\u5934&#xff0c;\u907f\u514d\u4e8c\u6b21\u5165\u4fb5<\/h3>\n<p>\u6e05\u7406\u5b8c\u6210\u540e&#xff0c;\u4e0d\u8981\u6025\u4e8e\u6062\u590d\u4e1a\u52a1&#xff0c;\u52a1\u5fc5\u8fdb\u884c\u6eaf\u6e90\u5206\u6790\u2014\u2014\u627e\u5230\u9ed1\u5ba2\u7684\u653b\u51fb\u65b9\u5f0f\u3001\u5165\u4fb5\u5165\u53e3&#xff0c;\u624d\u80fd\u9488\u5bf9\u6027\u52a0\u56fa&#xff0c;\u907f\u514d\u518d\u6b21\u88ab\u653b\u51fb\u3002\u6eaf\u6e90\u6838\u5fc3\u662f\u201c\u4ece\u65e5\u5fd7\u548c\u53d6\u8bc1\u6570\u636e\u4e2d\u63d0\u53d6\u5173\u952e\u4fe1\u606f\u201d&#xff0c;\u91cd\u70b9\u5173\u6ce83\u4e2a\u7ef4\u5ea6&#xff1a;<\/p>\n<h4>1. \u5b9a\u4f4d\u653b\u51fb\u5165\u53e3<\/h4>\n<ul>\n<li>\n<p>Web\u653b\u51fb&#xff1a;\u5206\u6790Nginx\/Apache\u65e5\u5fd7&#xff0c;\u67e5\u627e\u542bunion\u3001select\u3001drop\u3001..\/\u7b49\u5173\u952e\u8bcd\u7684\u5f02\u5e38\u8bf7\u6c42&#xff0c;\u5224\u65ad\u662f\u5426\u901a\u8fc7SQL\u6ce8\u5165\u3001\u6587\u4ef6\u4e0a\u4f20\u6f0f\u6d1e\u5165\u4fb5&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u5f31\u5bc6\u7801\u7206\u7834&#xff1a;\u67e5\u770b\/var\/log\/secure\u65e5\u5fd7&#xff0c;\u67e5\u627e\u201cFailed password\u201d\u8bb0\u5f55&#xff0c;\u5224\u65ad\u662f\u5426\u901a\u8fc7SSH\u3001\u6570\u636e\u5e93\u5f31\u5bc6\u7801\u7206\u7834\u5165\u4fb5&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u6f0f\u6d1e\u5229\u7528&#xff1a;\u68c0\u67e5\u7cfb\u7edf\u548c\u8f6f\u4ef6\u7248\u672c&#xff0c;\u662f\u5426\u5b58\u5728\u672a\u4fee\u590d\u7684\u5df2\u77e5\u6f0f\u6d1e&#xff08;\u5982Log4j\u3001Heartbleed&#xff09;&#xff0c;\u53ef\u901a\u8fc7\u6f0f\u6d1e\u626b\u63cf\u5de5\u5177&#xff08;\u5982Nessus&#xff09;\u8f85\u52a9\u68c0\u6d4b&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u6076\u610f\u8f6f\u4ef6&#xff1a;\u5206\u6790\u53d6\u8bc1\u7684\u6076\u610f\u6587\u4ef6&#xff0c;\u901a\u8fc7Virustotal\u7b49\u5de5\u5177\u68c0\u6d4b\u6587\u4ef6\u7c7b\u578b&#xff0c;\u5224\u65ad\u662f\u5426\u4e3a\u6728\u9a6c\u3001\u6316\u77ff\u7a0b\u5e8f&#xff0c;\u4ee5\u53ca\u4f20\u64ad\u9014\u5f84\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>2. \u8ffd\u8e2a\u9ed1\u5ba2IP\u4e0e\u884c\u4e3a<\/h4>\n<p># \u4ece\u65e5\u5fd7\u4e2d\u63d0\u53d6\u53ef\u7591IP&#xff08;\u4ee5SSH\u767b\u5f55\u65e5\u5fd7\u4e3a\u4f8b&#xff09; grep &#034;Failed password&#034; \/var\/log\/secure | awk &#039;{print $11}&#039; | sort | uniq -c | sort -nr # \u67e5\u770b\u53ef\u7591IP\u7684\u5f52\u5c5e\u5730&#xff08;\u9700\u8054\u7f51&#xff0c;\u53ef\u5728\u5b89\u5168\u8bbe\u5907\u4e0a\u67e5\u8be2&#xff09; curl http:\/\/ip-api.com\/json\/\u53ef\u7591IP # \u5206\u6790\u9ed1\u5ba2\u64cd\u4f5c\u8bb0\u5f55&#xff08;\u4ece.bash_history\u4e2d\u63d0\u53d6&#xff09; grep -E &#034;(rm|cp|wget|curl|chmod)&#034; \/tmp\/incident_xxx\/logs\/.bash_history<\/p>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u64cd\u4f5c&#xff0c;\u53ef\u5927\u81f4\u5224\u65ad\u9ed1\u5ba2\u7684IP\u5f52\u5c5e\u5730\u3001\u653b\u51fb\u65f6\u95f4\u3001\u64cd\u4f5c\u884c\u4e3a&#xff0c;\u4e3a\u540e\u7eed\u9632\u62a4\u548c\u62a5\u8b66\u63d0\u4f9b\u4f9d\u636e&#xff08;\u82e5\u635f\u5931\u8f83\u5927&#xff0c;\u53ef\u5411\u7f51\u5b89\u90e8\u95e8\u62a5\u6848&#xff0c;\u63d0\u4ea4\u53d6\u8bc1\u6570\u636e&#xff09;\u3002<\/p>\n<h3>\u56db\u3001\u7cfb\u7edf\u6062\u590d&#xff1a;\u5b89\u5168\u91cd\u542f&#xff0c;\u6062\u590d\u4e1a\u52a1<\/h3>\n<p>\u6eaf\u6e90\u5b8c\u6210\u540e&#xff0c;\u5373\u53ef\u8fdb\u884c\u7cfb\u7edf\u6062\u590d&#xff0c;\u6838\u5fc3\u662f\u201c\u786e\u4fdd\u7cfb\u7edf\u65e0\u6b8b\u7559\u6076\u610f\u7a0b\u5e8f\u3001\u6570\u636e\u5b89\u5168\u201d&#xff0c;\u6b65\u9aa4\u5982\u4e0b&#xff1a;<\/p>\n<li>\n<p>\u9a8c\u8bc1\u6e05\u7406\u6548\u679c&#xff1a;\u518d\u6b21\u6267\u884c\u68c0\u6d4b\u547d\u4ee4&#xff0c;\u786e\u8ba4\u65e0\u5f02\u5e38\u8fdb\u7a0b\u3001\u65e0\u964c\u751f\u7528\u6237\u3001\u65e0\u6076\u610f\u6587\u4ef6&#xff0c;\u65e5\u5fd7\u65e0\u5f02\u5e38\u8bb0\u5f55&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u6062\u590d\u7f51\u7edc\u8fde\u63a5&#xff1a;\u82e5\u4e4b\u524d\u65ad\u7f51&#xff0c;\u53ef\u91cd\u65b0\u8fde\u63a5\u7f51\u7ebf\u6216\u5728\u4e91\u63a7\u5236\u53f0\u5f00\u542f\u516c\u7f51\u8bbf\u95ee&#xff0c;\u4ec5\u5f00\u653e\u4e1a\u52a1\u5fc5\u9700\u7aef\u53e3&#xff0c;\u5173\u95ed\u4e0d\u5fc5\u8981\u7684\u7aef\u53e3&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u6062\u590d\u6570\u636e\u4e0e\u4e1a\u52a1&#xff1a;\u4ece\u79bb\u7ebf\u5907\u4efd\u4e2d\u8fd8\u539f\u6838\u5fc3\u6570\u636e&#xff08;\u5982\u6570\u636e\u5e93\u3001\u7f51\u7ad9\u6587\u4ef6&#xff09;&#xff0c;\u4f7f\u7528\u54c8\u5e0c\u6821\u9a8c\u786e\u4fdd\u6570\u636e\u672a\u88ab\u7be1\u6539&#xff08;sha256sum backup.tar.gz&#xff09;&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u5b89\u5168\u91cd\u542f&#xff1a;\u82e5\u6e05\u7406\u5f7b\u5e95&#xff0c;\u53ef\u91cd\u542f\u670d\u52a1\u5668&#xff08;\u4ec5\u5efa\u8bae\u5728\u975e\u6838\u5fc3\u4e1a\u52a1\u65f6\u6bb5\u64cd\u4f5c&#xff09;&#xff0c;\u91cd\u542f\u540e\u518d\u6b21\u68c0\u6d4b\u7cfb\u7edf\u72b6\u6001&#xff0c;\u786e\u8ba4\u65e0\u5f02\u5e38&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u4e1a\u52a1\u6d4b\u8bd5&#xff1a;\u6d4b\u8bd5\u7f51\u7ad9\u3001\u6570\u636e\u5e93\u7b49\u6838\u5fc3\u4e1a\u52a1\u662f\u5426\u6b63\u5e38\u8fd0\u884c&#xff0c;\u6392\u67e5\u662f\u5426\u5b58\u5728\u56e0\u6e05\u7406\u64cd\u4f5c\u5bfc\u81f4\u7684\u4e1a\u52a1\u5f02\u5e38\u3002<\/p>\n<\/li>\n<h3>\u4e94\u3001\u957f\u6548\u9632\u62a4&#xff1a;\u7b51\u7262\u9632\u7ebf&#xff0c;\u675c\u7edd\u4e8c\u6b21\u5165\u4fb5<\/h3>\n<p>\u201c\u4ea1\u7f8a\u8865\u7262&#xff0c;\u72b9\u672a\u4e3a\u665a\u201d&#xff0c;\u670d\u52a1\u5668\u88ab\u653b\u51fb\u540e&#xff0c;\u6700\u5173\u952e\u7684\u662f\u505a\u597d\u957f\u6548\u9632\u62a4&#xff0c;\u4ece\u6839\u6e90\u4e0a\u675c\u7edd\u4e8c\u6b21\u5165\u4fb5\u3002\u7ed3\u5408\u5b9e\u6218\u7ecf\u9a8c&#xff0c;\u63a8\u83506\u9053\u5b89\u5168\u9632\u7ebf&#xff0c;\u65b0\u624b\u4e5f\u80fd\u8f7b\u677e\u843d\u5730&#xff1a;<\/p>\n<h4>\u9632\u7ebf1&#xff1a;\u52a0\u56faSSH\u767b\u5f55&#xff0c;\u675c\u7edd\u5f31\u5bc6\u7801\u98ce\u9669<\/h4>\n<p>SSH\u662f\u670d\u52a1\u5668\u6700\u5e38\u7528\u7684\u767b\u5f55\u65b9\u5f0f&#xff0c;\u4e5f\u662f\u9ed1\u5ba2\u653b\u51fb\u7684\u4e3b\u8981\u5165\u53e3&#xff0c;\u5efa\u8bae\u505a\u597d3\u70b9&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u7981\u7528\u5bc6\u7801\u767b\u5f55&#xff0c;\u542f\u7528SSH\u5bc6\u94a5\u767b\u5f55&#xff08;\u76f8\u5f53\u4e8e\u7ed9\u670d\u52a1\u5668\u6362\u201c\u6307\u7eb9\u9501\u201d&#xff09;&#xff1a; # 1. \u672c\u5730\u751f\u6210\u5bc6\u94a5\u5bf9&#xff08;\u672c\u5730\u7535\u8111\u6267\u884c&#xff09; ssh-keygen -t rsa -b 4096 # 2. \u4e0a\u4f20\u516c\u94a5\u5230\u670d\u52a1\u5668&#xff08;\u66ff\u6362username\u548c\u670d\u52a1\u5668IP&#xff09; ssh-copy-id username&#064;\u670d\u52a1\u5668IP # 3. \u670d\u52a1\u5668\u7981\u7528\u5bc6\u7801\u767b\u5f55&#xff0c;\u4fee\u6539SSH\u914d\u7f6e vim \/etc\/ssh\/sshd_config # \u627e\u5230\u4ee5\u4e0b\u914d\u7f6e&#xff0c;\u4fee\u6539\u4e3a&#xff1a; PasswordAuthentication no # \u7981\u7528\u5bc6\u7801\u767b\u5f55 PermitRootLogin no # \u7981\u7528root\u7528\u6237SSH\u767b\u5f55 # 4. \u91cd\u542fSSH\u670d\u52a1 systemctl restart sshd<\/p>\n<\/li>\n<li>\n<p>\u4fee\u6539SSH\u9ed8\u8ba4\u7aef\u53e3&#xff08;\u4ece22\u6539\u4e3a\u9ad8\u4f4d\u7aef\u53e3&#xff0c;\u598223456&#xff09;&#xff0c;\u51cf\u5c11\u81ea\u52a8\u5316\u626b\u63cf&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u9650\u5236SSH\u767b\u5f55\u6e90IP&#xff0c;\u4ec5\u5141\u8bb8\u529e\u516c\u7f51\u7edc\u6216\u5bb6\u5eadIP\u8bbf\u95ee&#xff08;\u4e91\u670d\u52a1\u5668\u53ef\u901a\u8fc7\u5b89\u5168\u7ec4\u914d\u7f6e&#xff09;\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>\u9632\u7ebf2&#xff1a;\u914d\u7f6e\u9632\u706b\u5899&#xff0c;\u6700\u5c0f\u5316\u5f00\u653e\u7aef\u53e3<\/h4>\n<p>\u9632\u706b\u5899\u662f\u670d\u52a1\u5668\u7684\u201c\u7f51\u7edc\u57ce\u5899\u201d&#xff0c;\u6838\u5fc3\u539f\u5219\u662f\u201c\u6700\u5c0f\u6743\u9650\u201d\u2014\u2014\u53ea\u5f00\u653e\u4e1a\u52a1\u5fc5\u9700\u7aef\u53e3&#xff0c;\u5176\u4ed6\u4e00\u5f8b\u62d2\u7edd&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u4e91\u670d\u52a1\u5668&#xff1a;\u4f18\u5148\u4f7f\u7528\u4e91\u5e73\u53f0\u5b89\u5168\u7ec4&#xff0c;\u5165\u65b9\u5411\u4ec5\u5f00\u653e80&#xff08;HTTP&#xff09;\u3001443&#xff08;HTTPS&#xff09;\u3001\u4fee\u6539\u540e\u7684SSH\u7aef\u53e3&#xff0c;\u51fa\u65b9\u5411\u53ef\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u9650\u5236&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u7269\u7406\u670d\u52a1\u5668&#xff1a;\u542f\u7528iptables\u6216UFW\u9632\u706b\u5899&#xff0c;\u914d\u7f6e\u89c4\u5219\u5982\u4e0b&#xff08;\u4ee5UFW\u4e3a\u4f8b&#xff09;&#xff1a; # \u5b89\u88c5UFW apt install ufw -y # Ubuntu\/Debian yum install ufw -y # CentOS\/RHEL # \u542f\u7528UFW ufw enable # \u5f00\u653e\u5fc5\u9700\u7aef\u53e3&#xff08;\u66ff\u636223456\u4e3a\u4f60\u7684SSH\u7aef\u53e3&#xff09; ufw allow 80\/tcp ufw allow 443\/tcp ufw allow 23456\/tcp # \u62d2\u7edd\u6240\u6709\u5176\u4ed6\u5165\u7ad9\u6d41\u91cf ufw default deny incoming # \u5141\u8bb8\u6240\u6709\u51fa\u7ad9\u6d41\u91cf&#xff08;\u53ef\u6839\u636e\u9700\u6c42\u9650\u5236&#xff09; ufw default allow outgoing<\/p>\n<\/li>\n<\/ul>\n<h4>\u9632\u7ebf3&#xff1a;\u53ca\u65f6\u66f4\u65b0&#xff0c;\u4fee\u8865\u5df2\u77e5\u6f0f\u6d1e<\/h4>\n<p>\u7edd\u5927\u591a\u6570\u9ed1\u5ba2\u653b\u51fb&#xff0c;\u90fd\u662f\u5229\u7528\u5df2\u77e5\u7684\u3001\u672a\u88ab\u4fee\u590d\u7684\u7cfb\u7edf\u6216\u8f6f\u4ef6\u6f0f\u6d1e\u3002\u4fdd\u6301\u66f4\u65b0\u662f\u6210\u672c\u6700\u4f4e\u3001\u6548\u679c\u6700\u663e\u8457\u7684\u9632\u62a4\u63aa\u65bd&#xff1a;<\/p>\n<p># Ubuntu\/Debian \u7cfb\u7edf\u66f4\u65b0 sudo apt update &amp;&amp; sudo apt upgrade -y # CentOS\/RHEL \u7cfb\u7edf\u66f4\u65b0 sudo yum update -y # \u5b9a\u671f\u66f4\u65b0Web\u670d\u52a1\u3001\u6570\u636e\u5e93\u3001\u8fd0\u884c\u73af\u5883&#xff08;\u5982Nginx\u3001MySQL\u3001PHP&#xff09; # \u6ce8\u610f&#xff1a;\u751f\u4ea7\u73af\u5883\u66f4\u65b0\u524d&#xff0c;\u9700\u5728\u6d4b\u8bd5\u73af\u5883\u9a8c\u8bc1&#xff0c;\u505a\u597d\u56de\u6eda\u51c6\u5907<\/p>\n<p>\u8865\u5145&#xff1a;\u5bf9\u4e8e\u5df2\u7ed3\u675f\u751f\u547d\u5468\u671f&#xff08;EOL&#xff09;\u7684\u7cfb\u7edf&#xff08;\u5982CentOS 7&#xff09;&#xff0c;\u5fc5\u987b\u5c3d\u5feb\u8fc1\u79fb&#xff0c;\u56e0\u4e3a\u4e0d\u518d\u63d0\u4f9b\u5b89\u5168\u66f4\u65b0&#xff0c;\u6f0f\u6d1e\u65e0\u6cd5\u4fee\u590d\u3002<\/p>\n<h4>\u9632\u7ebf4&#xff1a;\u90e8\u7f72\u5165\u4fb5\u68c0\u6d4b\u5de5\u5177&#xff0c;\u4e3b\u52a8\u9632\u5fa1<\/h4>\n<p>\u9632\u706b\u5899\u662f\u201c\u88ab\u52a8\u9632\u5fa1\u201d&#xff0c;\u5165\u4fb5\u68c0\u6d4b\u5de5\u5177\u662f\u201c\u4e3b\u52a8\u5de1\u903b\u201d&#xff0c;\u63a8\u8350\u65b0\u624b\u90e8\u7f722\u4e2a\u8f7b\u91cf\u7ea7\u5de5\u5177&#xff1a;<\/p>\n<ul>\n<li>\n<p>Fail2ban&#xff1a;\u76d1\u63a7\u7cfb\u7edf\u65e5\u5fd7&#xff0c;\u5f53\u53d1\u73b0\u540c\u4e00\u4e2aIP\u77ed\u65f6\u95f4\u5185\u591a\u6b21\u767b\u5f55\u5931\u8d25&#xff08;\u5982SSH\u649e\u5e93&#xff09;&#xff0c;\u81ea\u52a8\u5c06\u5176\u52a0\u5165\u9ed1\u540d\u5355&#xff0c;\u5c01\u7981\u4e00\u6bb5\u65f6\u95f4&#xff1b;<\/p>\n<\/li>\n<li>\n<p>ClamAV&#xff1a;\u5f00\u6e90\u6740\u6bd2\u5f15\u64ce&#xff0c;\u5b9a\u671f\u626b\u63cf\u7cfb\u7edf&#xff0c;\u67e5\u6740\u5df2\u77e5\u7684\u6076\u610f\u8f6f\u4ef6\u3001\u6728\u9a6c\u548c\u75c5\u6bd2\u3002<\/p>\n<\/li>\n<\/ul>\n<p># \u5b89\u88c5Fail2ban&#xff08;Ubuntu\/Debian&#xff09; apt install fail2ban -y # \u542f\u52a8\u5e76\u8bbe\u7f6e\u5f00\u673a\u81ea\u542f systemctl start fail2ban systemctl enable fail2ban # \u5b89\u88c5ClamAV apt install clamav clamav-daemon -y # \u66f4\u65b0\u75c5\u6bd2\u5e93\u5e76\u626b\u63cf freshclam clamscan -r \/ &#8211;exclude&#061;\/proc 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