{"id":3218,"date":"2017-12-07T14:04:45","date_gmt":"2017-12-07T06:04:45","guid":{"rendered":"http:\/\/dingxuan.info\/wp\/?p=3218"},"modified":"2017-12-07T14:41:38","modified_gmt":"2017-12-07T06:41:38","slug":"%e4%b8%80%e4%b8%aa%e6%9c%80%e5%88%9d%e7%ba%a7%e7%9a%84%e6%b8%85%e5%8d%95%ef%bc%9a%e5%a6%82%e4%bd%95%e5%88%a4%e6%96%adlinux%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%98%af%e5%90%a6%e8%a2%ab%e5%85%a5%e4%be%b5","status":"publish","type":"post","link":"https:\/\/ybzx.vip\/wp\/?p=3218","title":{"rendered":"\u4e00\u4e2a\u6700\u521d\u7ea7\u7684\u6e05\u5355\uff1a\u5982\u4f55\u5224\u65adLinux\u670d\u52a1\u5668\u662f\u5426\u88ab\u5165\u4fb5\uff1f"},"content":{"rendered":"

\u7f16\u8bd1\u81ea\uff1ahttps:\/\/bash-prompt.net\/guides\/server-hacked\/<\/a><\/span>\u4f5c\u8005\uff1a Elliot Cooper<\/span>
\u539f\u521b\uff1aLCTT<\/a>\u00a0https:\/\/linux.cn\/article-9116-1.html<\/a><\/span>\u8bd1\u8005\uff1a\u00a0DarkSun<\/a><\/span>
\u672c\u6587\u5730\u5740\uff1ahttps:\/\/linux.cn\/article-9116-1.html<\/a><\/span><\/p>\n

\u672c\u6307\u5357\u4e2d\u6240\u8c13\u7684\u670d\u52a1\u5668\u88ab\u5165\u4fb5\u6216\u8005\u8bf4\u88ab\u9ed1\u4e86\u7684\u610f\u601d\uff0c\u662f\u6307\u672a\u7ecf\u6388\u6743\u7684\u4eba\u6216\u7a0b\u5e8f\u4e3a\u4e86\u81ea\u5df1\u7684\u76ee\u7684\u767b\u5f55\u5230\u670d\u52a1\u5668\u4e0a\u53bb\u5e76\u4f7f\u7528\u5176\u8ba1\u7b97\u8d44\u6e90\uff0c\u901a\u5e38\u4f1a\u4ea7\u751f\u4e0d\u597d\u7684\u5f71\u54cd\u3002<\/p>\n

\u514d\u8d23\u58f0\u660e\uff1a\u82e5\u4f60\u7684\u670d\u52a1\u5668\u88ab\u7c7b\u4f3c NSA \u8fd9\u6837\u7684\u56fd\u5bb6\u673a\u5173\u6216\u8005\u67d0\u4e2a\u72af\u7f6a\u96c6\u56e2\u5165\u4fb5\uff0c\u90a3\u4e48\u4f60\u5e76\u4e0d\u4f1a\u6ce8\u610f\u5230\u6709\u4efb\u4f55\u95ee\u9898\uff0c\u8fd9\u4e9b\u6280\u672f\u4e5f\u65e0\u6cd5\u53d1\u89c9\u4ed6\u4eec\u7684\u5b58\u5728\u3002<\/p>\n

\u7136\u800c\uff0c\u5927\u591a\u6570\u88ab\u653b\u7834\u7684\u670d\u52a1\u5668\u90fd\u662f\u88ab\u7c7b\u4f3c\u81ea\u52a8\u653b\u51fb\u7a0b\u5e8f\u8fd9\u6837\u7684\u7a0b\u5e8f\u6216\u8005\u7c7b\u4f3c\u201c\u811a\u672c\u5c0f\u5b50\u201d\u8fd9\u6837\u7684\u5ec9\u4ef7\u653b\u51fb\u8005\uff0c\u4ee5\u53ca\u8822\u86cb\u7f6a\u72af\u6240\u5165\u4fb5\u7684\u3002<\/p>\n

\u8fd9\u7c7b\u653b\u51fb\u8005\u4f1a\u5728\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u540c\u65f6\u6ee5\u7528\u670d\u52a1\u5668\u8d44\u6e90\uff0c\u5e76\u4e14\u4e0d\u600e\u4e48\u4f1a\u91c7\u53d6\u63aa\u65bd\u6765\u9690\u85cf\u4ed6\u4eec\u6b63\u5728\u505a\u7684\u4e8b\u60c5\u3002<\/p>\n

\u88ab\u5165\u4fb5\u670d\u52a1\u5668\u7684\u75c7\u72b6<\/h3>\n

\u5f53\u670d\u52a1\u5668\u88ab\u6ca1\u6709\u7ecf\u9a8c\u653b\u51fb\u8005\u6216\u8005\u81ea\u52a8\u653b\u51fb\u7a0b\u5e8f\u5165\u4fb5\u4e86\u7684\u8bdd\uff0c\u4ed6\u4eec\u5f80\u5f80\u4f1a\u6d88\u8017 100% \u7684\u8d44\u6e90\u3002\u4ed6\u4eec\u53ef\u80fd\u6d88\u8017 CPU \u8d44\u6e90\u6765\u8fdb\u884c\u6570\u5b57\u8d27\u5e01\u7684\u91c7\u77ff\u6216\u8005\u53d1\u9001\u5783\u573e\u90ae\u4ef6\uff0c\u4e5f\u53ef\u80fd\u6d88\u8017\u5e26\u5bbd\u6765\u53d1\u52a8 DoS \u653b\u51fb\u3002<\/p>\n

\u56e0\u6b64\u51fa\u73b0\u95ee\u9898\u7684\u7b2c\u4e00\u4e2a\u8868\u73b0\u5c31\u662f\u670d\u52a1\u5668 \u201c\u53d8\u6162\u4e86\u201d\u3002\u8fd9\u53ef\u80fd\u8868\u73b0\u5728\u7f51\u7ad9\u7684\u9875\u9762\u6253\u5f00\u7684\u5f88\u6162\uff0c\u6216\u8005\u7535\u5b50\u90ae\u4ef6\u8981\u82b1\u5f88\u957f\u65f6\u95f4\u624d\u80fd\u53d1\u9001\u51fa\u53bb\u3002<\/p>\n

\u90a3\u4e48\u4f60\u5e94\u8be5\u67e5\u770b\u90a3\u4e9b\u4e1c\u897f\u5462?<\/p>\n

\u68c0\u67e5 1 – \u5f53\u524d\u90fd\u6709\u8c01\u5728\u767b\u5f55?<\/h4>\n

\u4f60\u9996\u5148\u8981\u67e5\u770b\u5f53\u524d\u90fd\u6709\u8c01\u767b\u5f55\u5728\u670d\u52a1\u5668\u4e0a\u3002\u53d1\u73b0\u653b\u51fb\u8005\u767b\u5f55\u5230\u670d\u52a1\u5668\u4e0a\u8fdb\u884c\u64cd\u4f5c\u5e76\u4e0d\u590d\u6742\u3002<\/p>\n

\u5176\u5bf9\u5e94\u7684\u547d\u4ee4\u662f\u00a0w<\/code>\u3002\u8fd0\u884c\u00a0w<\/code>\u00a0\u4f1a\u8f93\u51fa\u5982\u4e0b\u7ed3\u679c\uff1a<\/p>\n

    \n
  1. 08<\/span>:<\/span>32<\/span>:<\/span>55<\/span> up <\/span>98<\/span> days<\/span>,<\/span> 5<\/span>:<\/span>43<\/span>,<\/span> 2<\/span> users<\/span>,<\/span> load average<\/span>:<\/span> 0.05<\/span>,<\/span> 0.03<\/span>,<\/span> 0.00<\/span><\/code><\/li>\n
  2. USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT<\/span><\/code><\/li>\n
  3. root pts<\/span>\/<\/span>0<\/span> 113.174<\/span>.<\/span>161.1<\/span> 08<\/span>:<\/span>26<\/span> 0.00s<\/span> 0.03s<\/span> 0.02s<\/span> ssh<\/span> root@coopeaa12<\/span><\/code><\/li>\n
  4. root pts<\/span>\/<\/span>1<\/span> 78.31<\/span>.<\/span>109.1<\/span> 08<\/span>:<\/span>26<\/span> 0.00s<\/span> 0.01s<\/span> 0.00s<\/span> w<\/span><\/code><\/li>\n<\/ol>\n

    \u7b2c\u4e00\u4e2a IP \u662f\u82f1\u56fd IP\uff0c\u800c\u7b2c\u4e8c\u4e2a IP \u662f\u8d8a\u5357 IP\u3002\u8fd9\u4e2a\u4e0d\u662f\u4e2a\u597d\u5146\u5934\u3002<\/p>\n

    \u505c\u4e0b\u6765\u505a\u4e2a\u6df1\u547c\u5438, \u4e0d\u8981\u6050\u614c\u4e4b\u4e0b\u53ea\u662f\u5e72\u6389\u4ed6\u4eec\u7684 SSH \u8fde\u63a5\u3002\u9664\u975e\u4f60\u80fd\u591f\u9632\u6b62\u4ed6\u4eec\u518d\u6b21\u8fdb\u5165\u670d\u52a1\u5668\uff0c\u5426\u5219\u4ed6\u4eec\u4f1a\u5f88\u5feb\u8fdb\u6765\u5e76\u8e22\u6389\u4f60\uff0c\u4ee5\u9632\u4f60\u518d\u6b21\u56de\u53bb\u3002<\/p>\n

    \u8bf7\u53c2\u9605\u672c\u6587\u6700\u540e\u7684\u201c\u88ab\u5165\u4fb5\u4e4b\u540e\u600e\u4e48\u529e\u201d\u8fd9\u4e00\u7ae0\u8282\u6765\u770b\u627e\u5230\u4e86\u88ab\u5165\u4fb5\u7684\u8bc1\u636e\u540e\u5e94\u8be5\u600e\u4e48\u529e\u3002<\/p>\n

    whois<\/code>\u00a0\u547d\u4ee4\u53ef\u4ee5\u63a5\u4e00\u4e2a IP \u5730\u5740\u7136\u540e\u544a\u8bc9\u4f60\u8be5 IP \u6240\u6ce8\u518c\u7684\u7ec4\u7ec7\u7684\u6240\u6709\u4fe1\u606f\uff0c\u5f53\u7136\u5c31\u5305\u62ec\u6240\u5728\u56fd\u5bb6\u7684\u4fe1\u606f\u3002<\/p>\n

    \u68c0\u67e5 2 – \u8c01\u66fe\u7ecf\u767b\u5f55\u8fc7?<\/h4>\n

    Linux \u670d\u52a1\u5668\u4f1a\u8bb0\u5f55\u4e0b\u54ea\u4e9b\u7528\u6237\uff0c\u4ece\u54ea\u4e2a IP\uff0c\u5728\u4ec0\u4e48\u65f6\u5019\u767b\u5f55\u7684\u4ee5\u53ca\u767b\u5f55\u4e86\u591a\u957f\u65f6\u95f4\u8fd9\u4e9b\u4fe1\u606f\u3002\u4f7f\u7528\u00a0last<\/code>\u00a0\u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u8fd9\u4e9b\u4fe1\u606f\u3002<\/p>\n

    \u8f93\u51fa\u7c7b\u4f3c\u8fd9\u6837\uff1a<\/p>\n

      \n
    1. root pts<\/span>\/<\/span>1<\/span> 78.31<\/span>.<\/span>109.1<\/span> Thu<\/span> Nov<\/span> 30<\/span> 08<\/span>:<\/span>26<\/span> still logged <\/span>in<\/span><\/code><\/li>\n
    2. root pts<\/span>\/<\/span>0<\/span> 113.174<\/span>.<\/span>161.1<\/span> Thu<\/span> Nov<\/span> 30<\/span> 08<\/span>:<\/span>26<\/span> still logged <\/span>in<\/span><\/code><\/li>\n
    3. root pts<\/span>\/<\/span>1<\/span> 78.31<\/span>.<\/span>109.1<\/span> Thu<\/span> Nov<\/span> 30<\/span> 08<\/span>:<\/span>24<\/span> -<\/span> 08<\/span>:<\/span>26<\/span> (<\/span>00<\/span>:<\/span>01<\/span>)<\/span><\/code><\/li>\n
    4. root pts<\/span>\/<\/span>0<\/span> 113.174<\/span>.<\/span>161.1<\/span> Wed<\/span> Nov<\/span> 29<\/span> 12<\/span>:<\/span>34<\/span> -<\/span> 12<\/span>:<\/span>52<\/span> (<\/span>00<\/span>:<\/span>18<\/span>)<\/span><\/code><\/li>\n
    5. root pts<\/span>\/<\/span>0<\/span> 14.176<\/span>.<\/span>196.1<\/span> Mon<\/span> Nov<\/span> 27<\/span> 13<\/span>:<\/span>32<\/span> -<\/span> 13<\/span>:<\/span>53<\/span> (<\/span>00<\/span>:<\/span>21<\/span>)<\/span><\/code><\/li>\n<\/ol>\n

      \u8fd9\u91cc\u53ef\u4ee5\u770b\u5230\u82f1\u56fd IP \u548c\u8d8a\u5357 IP \u4ea4\u66ff\u51fa\u73b0\uff0c\u800c\u4e14\u6700\u4e0a\u9762\u4e24\u4e2a IP \u73b0\u5728\u8fd8\u5904\u4e8e\u767b\u5f55\u72b6\u6001\u3002\u5982\u679c\u4f60\u770b\u5230\u4efb\u4f55\u672a\u7ecf\u6388\u6743\u7684 IP\uff0c\u90a3\u4e48\u8bf7\u53c2\u9605\u6700\u540e\u7ae0\u8282\u3002<\/p>\n

      \u767b\u5f55\u540e\u7684\u5386\u53f2\u8bb0\u5f55\u4f1a\u8bb0\u5f55\u5230\u4e8c\u8fdb\u5236\u7684\u00a0\/var\/log\/wtmp<\/code>\u00a0\u6587\u4ef6\u4e2d\uff08LCTT \u8bd1\u6ce8\uff1a\u8fd9\u91cc\u4f5c\u8005\u5e94\u8be5\u5199\u9519\u4e86\uff0c\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u4fee\u6539\uff09\uff0c\u56e0\u6b64\u5f88\u5bb9\u6613\u88ab\u5220\u9664\u3002\u901a\u5e38\u653b\u51fb\u8005\u4f1a\u76f4\u63a5\u628a\u8fd9\u4e2a\u6587\u4ef6\u5220\u6389\uff0c\u4ee5\u63a9\u76d6\u4ed6\u4eec\u7684\u653b\u51fb\u884c\u4e3a\u3002 \u56e0\u6b64, \u82e5\u4f60\u8fd0\u884c\u4e86\u00a0last<\/code>\u00a0\u547d\u4ee4\u5374\u53ea\u770b\u5f97\u89c1\u4f60\u7684\u5f53\u524d\u767b\u5f55\uff0c\u90a3\u4e48\u8fd9\u5c31\u662f\u4e2a\u4e0d\u5999\u7684\u4fe1\u53f7\u3002<\/p>\n

      \u5982\u679c\u6ca1\u6709\u767b\u5f55\u5386\u53f2\u7684\u8bdd\uff0c\u8bf7\u4e00\u5b9a\u5c0f\u5fc3\uff0c\u7ee7\u7eed\u7559\u610f\u5165\u4fb5\u7684\u5176\u4ed6\u7ebf\u7d22\u3002<\/p>\n

      \u68c0\u67e5 3 – \u56de\u987e\u547d\u4ee4\u5386\u53f2<\/h4>\n

      \u8fd9\u4e2a\u5c42\u6b21\u7684\u653b\u51fb\u8005\u901a\u5e38\u4e0d\u4f1a\u6ce8\u610f\u63a9\u76d6\u547d\u4ee4\u7684\u5386\u53f2\u8bb0\u5f55\uff0c\u56e0\u6b64\u8fd0\u884c\u00a0history<\/code>\u00a0\u547d\u4ee4\u4f1a\u663e\u793a\u51fa\u4ed6\u4eec\u66fe\u7ecf\u505a\u8fc7\u7684\u6240\u6709\u4e8b\u60c5\u3002 \u4e00\u5b9a\u7559\u610f\u6709\u6ca1\u6709\u7528\u00a0wget<\/code>\u00a0\u6216\u00a0curl<\/code>\u00a0\u547d\u4ee4\u6765\u4e0b\u8f7d\u7c7b\u4f3c\u5783\u573e\u90ae\u4ef6\u673a\u5668\u4eba\u6216\u8005\u6316\u77ff\u7a0b\u5e8f\u4e4b\u7c7b\u7684\u975e\u5e38\u89c4\u8f6f\u4ef6\u3002<\/p>\n

      \u547d\u4ee4\u5386\u53f2\u5b58\u50a8\u5728\u00a0~\/.bash_history<\/code>\u00a0\u6587\u4ef6\u4e2d\uff0c\u56e0\u6b64\u6709\u4e9b\u653b\u51fb\u8005\u4f1a\u5220\u9664\u8be5\u6587\u4ef6\u4ee5\u63a9\u76d6\u4ed6\u4eec\u7684\u6240\u4f5c\u6240\u4e3a\u3002\u8ddf\u767b\u5f55\u5386\u53f2\u4e00\u6837\uff0c\u82e5\u4f60\u8fd0\u884c\u00a0history<\/code>\u00a0\u547d\u4ee4\u5374\u6ca1\u6709\u8f93\u51fa\u4efb\u4f55\u4e1c\u897f\u90a3\u5c31\u8868\u793a\u5386\u53f2\u6587\u4ef6\u88ab\u5220\u6389\u4e86\u3002\u8fd9\u4e5f\u662f\u4e2a\u4e0d\u5999\u7684\u4fe1\u53f7\uff0c\u4f60\u9700\u8981\u5f88\u5c0f\u5fc3\u5730\u68c0\u67e5\u4e00\u4e0b\u670d\u52a1\u5668\u4e86\u3002\uff08LCTT \u8bd1\u6ce8\uff0c\u5982\u679c\u6ca1\u6709\u547d\u4ee4\u5386\u53f2\uff0c\u4e5f\u6709\u53ef\u80fd\u662f\u4f60\u7684\u914d\u7f6e\u9519\u8bef\u3002\uff09<\/p>\n

      \u68c0\u67e5 4 – \u54ea\u4e9b\u8fdb\u7a0b\u5728\u6d88\u8017 CPU\uff1f<\/h4>\n

      \u4f60\u5e38\u9047\u5230\u7684\u8fd9\u7c7b\u653b\u51fb\u8005\u901a\u5e38\u4e0d\u600e\u4e48\u4f1a\u53bb\u63a9\u76d6\u4ed6\u4eec\u505a\u7684\u4e8b\u60c5\u3002\u4ed6\u4eec\u4f1a\u8fd0\u884c\u4e00\u4e9b\u7279\u522b\u6d88\u8017 CPU \u7684\u8fdb\u7a0b\u3002\u8fd9\u5c31\u5f88\u5bb9\u6613\u53d1\u73b0\u8fd9\u4e9b\u8fdb\u7a0b\u4e86\u3002\u53ea\u9700\u8981\u8fd0\u884c\u00a0top<\/code>\u00a0\u7136\u540e\u770b\u6700\u524d\u7684\u90a3\u51e0\u4e2a\u8fdb\u7a0b\u5c31\u884c\u4e86\u3002<\/p>\n

      \u8fd9\u4e5f\u80fd\u663e\u793a\u51fa\u90a3\u4e9b\u672a\u767b\u5f55\u8fdb\u6765\u7684\u653b\u51fb\u8005\u3002\u6bd4\u5982\uff0c\u53ef\u80fd\u6709\u4eba\u5728\u7528\u672a\u53d7\u4fdd\u62a4\u7684\u90ae\u4ef6\u811a\u672c\u6765\u53d1\u9001\u5783\u573e\u90ae\u4ef6\u3002<\/p>\n

      \u5982\u679c\u4f60\u6700\u4e0a\u9762\u7684\u8fdb\u7a0b\u5bf9\u4e0d\u4e86\u89e3\uff0c\u90a3\u4e48\u4f60\u53ef\u4ee5 Google \u4e00\u4e0b\u8fdb\u7a0b\u540d\u79f0\uff0c\u6216\u8005\u901a\u8fc7\u00a0losf<\/code>\u00a0\u548c\u00a0strace<\/code>\u00a0\u6765\u770b\u770b\u5b83\u505a\u7684\u4e8b\u60c5\u662f\u4ec0\u4e48\u3002<\/p>\n

      \u4f7f\u7528\u8fd9\u4e9b\u5de5\u5177\uff0c\u7b2c\u4e00\u6b65\u4ece\u00a0top<\/code>\u00a0\u4e2d\u62f7\u8d1d\u51fa\u8fdb\u7a0b\u7684 PID\uff0c\u7136\u540e\u8fd0\u884c\uff1a<\/p>\n

        \n
      1. strace<\/span> -<\/span>p PID<\/span><\/code><\/li>\n<\/ol>\n

        \u8fd9\u4f1a\u663e\u793a\u51fa\u8be5\u8fdb\u7a0b\u8c03\u7528\u7684\u6240\u6709\u7cfb\u7edf\u8c03\u7528\u3002\u5b83\u4ea7\u751f\u7684\u5185\u5bb9\u4f1a\u5f88\u591a\uff0c\u4f46\u8fd9\u4e9b\u4fe1\u606f\u80fd\u544a\u8bc9\u4f60\u8fd9\u4e2a\u8fdb\u7a0b\u5728\u505a\u4ec0\u4e48\u3002<\/p>\n

          \n
        1. lsof<\/span> -<\/span>p PID<\/span><\/code><\/li>\n<\/ol>\n

          \u8fd9\u4e2a\u7a0b\u5e8f\u4f1a\u5217\u51fa\u8be5\u8fdb\u7a0b\u6253\u5f00\u7684\u6587\u4ef6\u3002\u901a\u8fc7\u67e5\u770b\u5b83\u8bbf\u95ee\u7684\u6587\u4ef6\u53ef\u4ee5\u5f88\u597d\u7684\u7406\u89e3\u5b83\u5728\u505a\u7684\u4e8b\u60c5\u3002<\/p>\n

          \u68c0\u67e5 5 – \u68c0\u67e5\u6240\u6709\u7684\u7cfb\u7edf\u8fdb\u7a0b<\/h4>\n

          \u6d88\u8017 CPU \u4e0d\u4e25\u91cd\u7684\u672a\u6388\u6743\u8fdb\u7a0b\u53ef\u80fd\u4e0d\u4f1a\u5728\u00a0top<\/code>\u00a0\u4e2d\u663e\u9732\u51fa\u6765\uff0c\u4e0d\u8fc7\u5b83\u4f9d\u7136\u53ef\u4ee5\u901a\u8fc7\u00a0ps<\/code>\u00a0\u5217\u51fa\u6765\u3002\u547d\u4ee4\u00a0ps auxf<\/code>\u00a0\u5c31\u80fd\u663e\u793a\u8db3\u591f\u6e05\u6670\u7684\u4fe1\u606f\u4e86\u3002<\/p>\n

          \u4f60\u9700\u8981\u68c0\u67e5\u4e00\u4e0b\u6bcf\u4e2a\u4e0d\u8ba4\u8bc6\u7684\u8fdb\u7a0b\u3002\u7ecf\u5e38\u8fd0\u884c\u00a0ps<\/code>\u00a0\uff08\u8fd9\u662f\u4e2a\u597d\u4e60\u60ef\uff09\u80fd\u5e2e\u52a9\u4f60\u53d1\u73b0\u5947\u602a\u7684\u8fdb\u7a0b\u3002<\/p>\n

          \u68c0\u67e5 6 – \u68c0\u67e5\u8fdb\u7a0b\u7684\u7f51\u7edc\u4f7f\u7528\u60c5\u51b5<\/h4>\n

          iftop<\/code>\u00a0\u7684\u529f\u80fd\u7c7b\u4f3c\u00a0top<\/code>\uff0c\u5b83\u4f1a\u6392\u5217\u663e\u793a\u6536\u53d1\u7f51\u7edc\u6570\u636e\u7684\u8fdb\u7a0b\u4ee5\u53ca\u5b83\u4eec\u7684\u6e90\u5730\u5740\u548c\u76ee\u7684\u5730\u5740\u3002\u7c7b\u4f3c DoS \u653b\u51fb\u6216\u5783\u573e\u673a\u5668\u4eba\u8fd9\u6837\u7684\u8fdb\u7a0b\u5f88\u5bb9\u6613\u663e\u793a\u5728\u5217\u8868\u7684\u6700\u9876\u7aef\u3002<\/p>\n

          \u68c0\u67e5 7 – \u54ea\u4e9b\u8fdb\u7a0b\u5728\u76d1\u542c\u7f51\u7edc\u8fde\u63a5?<\/h4>\n

          \u901a\u5e38\u653b\u51fb\u8005\u4f1a\u5b89\u88c5\u4e00\u4e2a\u540e\u95e8\u7a0b\u5e8f\u4e13\u95e8\u76d1\u542c\u7f51\u7edc\u7aef\u53e3\u63a5\u53d7\u6307\u4ee4\u3002\u8be5\u8fdb\u7a0b\u7b49\u5f85\u671f\u95f4\u662f\u4e0d\u4f1a\u6d88\u8017 CPU \u548c\u5e26\u5bbd\u7684\uff0c\u56e0\u6b64\u4e5f\u5c31\u4e0d\u5bb9\u6613\u901a\u8fc7\u00a0top<\/code>\u00a0\u4e4b\u7c7b\u7684\u547d\u4ee4\u53d1\u73b0\u3002<\/p>\n

          lsof<\/code>\u00a0\u548c\u00a0netstat<\/code>\u00a0\u547d\u4ee4\u90fd\u4f1a\u5217\u51fa\u6240\u6709\u7684\u8054\u7f51\u8fdb\u7a0b\u3002\u6211\u901a\u5e38\u4f1a\u8ba9\u5b83\u4eec\u5e26\u4e0a\u4e0b\u9762\u8fd9\u4e9b\u53c2\u6570\uff1a<\/p>\n

            \n
          1. lsof<\/span> -<\/span>i<\/span><\/code><\/li>\n<\/ol>\n
              \n
            1. netstat<\/span> -<\/span>plunt<\/span><\/code><\/li>\n<\/ol>\n

              \u4f60\u9700\u8981\u7559\u610f\u90a3\u4e9b\u5904\u4e8e\u00a0LISTEN<\/code>\u00a0\u548c\u00a0ESTABLISHED<\/code>\u00a0\u72b6\u6001\u7684\u8fdb\u7a0b\uff0c\u8fd9\u4e9b\u8fdb\u7a0b\u8981\u4e48\u6b63\u5728\u7b49\u5f85\u8fde\u63a5\uff08LISTEN\uff09\uff0c\u8981\u4e48\u5df2\u7ecf\u8fde\u63a5\uff08ESTABLISHED\uff09\u3002\u5982\u679c\u9047\u5230\u4e0d\u8ba4\u8bc6\u7684\u8fdb\u7a0b\uff0c\u4f7f\u7528\u00a0strace<\/code>\u00a0\u548c\u00a0lsof<\/code>\u00a0\u6765\u770b\u770b\u5b83\u4eec\u5728\u505a\u4ec0\u4e48\u4e1c\u897f\u3002<\/p>\n

              \u88ab\u5165\u4fb5\u4e4b\u540e\u8be5\u600e\u4e48\u529e\u5462?<\/h3>\n

              \u9996\u5148\uff0c\u4e0d\u8981\u7d27\u5f20\uff0c\u5c24\u5176\u5f53\u653b\u51fb\u8005\u6b63\u5904\u4e8e\u767b\u5f55\u72b6\u6001\u65f6\u66f4\u4e0d\u80fd\u7d27\u5f20\u3002\u4f60\u9700\u8981\u5728\u653b\u51fb\u8005\u8b66\u89c9\u5230\u4f60\u5df2\u7ecf\u53d1\u73b0\u4ed6\u4e4b\u524d\u593a\u56de\u673a\u5668\u7684\u63a7\u5236\u6743\u3002<\/strong>\u5982\u679c\u4ed6\u53d1\u73b0\u4f60\u5df2\u7ecf\u53d1\u89c9\u5230\u4ed6\u4e86\uff0c\u90a3\u4e48\u4ed6\u53ef\u80fd\u4f1a\u9501\u6b7b\u4f60\u4e0d\u8ba9\u4f60\u767b\u9646\u670d\u52a1\u5668\uff0c\u7136\u540e\u5f00\u59cb\u6bc1\u5c38\u706d\u8ff9\u3002<\/p>\n

              \u5982\u679c\u4f60\u6280\u672f\u4e0d\u592a\u597d\u90a3\u4e48\u5c31\u76f4\u63a5\u5173\u673a\u5427\u3002\u4f60\u53ef\u4ee5\u5728\u670d\u52a1\u5668\u4e0a\u8fd0\u884c\u00a0shutdown -h now<\/code>\u00a0\u6216\u8005\u00a0systemctl poweroff<\/code>\u8fd9\u4e24\u6761\u547d\u4ee4\u4e4b\u4e00\u3002\u4e5f\u53ef\u4ee5\u767b\u5f55\u4e3b\u673a\u63d0\u4f9b\u5546\u7684\u63a7\u5236\u9762\u677f\u4e2d\u5173\u95ed\u670d\u52a1\u5668\u3002\u5173\u673a\u540e\uff0c\u4f60\u5c31\u53ef\u4ee5\u5f00\u59cb\u914d\u7f6e\u9632\u706b\u5899\u6216\u8005\u54a8\u8be2\u4e00\u4e0b\u4f9b\u5e94\u5546\u7684\u610f\u89c1\u3002<\/p>\n

              \u5982\u679c\u4f60\u5bf9\u81ea\u5df1\u9887\u6709\u81ea\u4fe1\uff0c\u800c\u4f60\u7684\u4e3b\u673a\u63d0\u4f9b\u5546\u4e5f\u6709\u63d0\u4f9b\u4e0a\u6e38\u9632\u706b\u5899\uff0c\u90a3\u4e48\u4f60\u53ea\u9700\u8981\u4ee5\u6b64\u521b\u5efa\u5e76\u542f\u7528\u4e0b\u9762\u4e24\u6761\u89c4\u5219\u5c31\u884c\u4e86\uff1a<\/p>\n

                \n
              1. \u53ea\u5141\u8bb8\u4ece\u4f60\u7684 IP \u5730\u5740\u767b\u5f55 SSH\u3002<\/li>\n
              2. \u5c01\u7981\u9664\u6b64\u4e4b\u5916\u7684\u4efb\u4f55\u4e1c\u897f\uff0c\u4e0d\u4ec5\u4ec5\u662f SSH\uff0c\u8fd8\u5305\u62ec\u4efb\u4f55\u7aef\u53e3\u4e0a\u7684\u4efb\u4f55\u534f\u8bae\u3002<\/li>\n<\/ol>\n

                \u8fd9\u6837\u4f1a\u7acb\u5373\u5173\u95ed\u653b\u51fb\u8005\u7684 SSH \u4f1a\u8bdd\uff0c\u800c\u53ea\u7559\u4e0b\u4f60\u53ef\u4ee5\u8bbf\u95ee\u670d\u52a1\u5668\u3002<\/p>\n

                \u5982\u679c\u4f60\u65e0\u6cd5\u8bbf\u95ee\u4e0a\u6e38\u9632\u706b\u5899\uff0c\u90a3\u4e48\u4f60\u5c31\u9700\u8981\u5728\u670d\u52a1\u5668\u672c\u8eab\u521b\u5efa\u5e76\u542f\u7528\u8fd9\u4e9b\u9632\u706b\u5899\u7b56\u7565\uff0c\u7136\u540e\u5728\u9632\u706b\u5899\u89c4\u5219\u8d77\u6548\u540e\u4f7f\u7528\u00a0kill<\/code>\u00a0\u547d\u4ee4\u5173\u95ed\u653b\u51fb\u8005\u7684 SSH \u4f1a\u8bdd\u3002\uff08LCTT \u8bd1\u6ce8\uff1a\u672c\u5730\u9632\u706b\u5899\u89c4\u5219 \u6709\u53ef\u80fd\u4e0d\u4f1a\u963b\u6b62\u5df2\u7ecf\u5efa\u7acb\u7684 SSH \u4f1a\u8bdd\uff0c\u6240\u4ee5\u4fdd\u9669\u8d77\u89c1\uff0c\u4f60\u9700\u8981\u624b\u5de5\u6740\u6b7b\u8be5\u4f1a\u8bdd\u3002\uff09<\/p>\n

                \u6700\u540e\u8fd8\u6709\u4e00\u79cd\u65b9\u6cd5\uff0c\u5982\u679c\u652f\u6301\u7684\u8bdd\uff0c\u5c31\u662f\u901a\u8fc7\u8bf8\u5982\u4e32\u884c\u63a7\u5236\u53f0\u4e4b\u7c7b\u7684\u5e26\u5916\u8fde\u63a5\u767b\u5f55\u670d\u52a1\u5668\uff0c\u7136\u540e\u901a\u8fc7\u00a0systemctl stop network.service<\/code>\u00a0\u505c\u6b62\u7f51\u7edc\u529f\u80fd\u3002\u8fd9\u4f1a\u5173\u95ed\u6240\u6709\u670d\u52a1\u5668\u4e0a\u7684\u7f51\u7edc\u8fde\u63a5\uff0c\u8fd9\u6837\u4f60\u5c31\u53ef\u4ee5\u6162\u6162\u7684\u914d\u7f6e\u90a3\u4e9b\u9632\u706b\u5899\u89c4\u5219\u4e86\u3002<\/p>\n

                \u91cd\u593a\u670d\u52a1\u5668\u7684\u63a7\u5236\u6743\u540e\uff0c\u4e5f\u4e0d\u8981\u4ee5\u4e3a\u5c31\u4e07\u4e8b\u5927\u5409\u4e86\u3002<\/p>\n

                \u4e0d\u8981\u8bd5\u7740\u4fee\u590d\u8fd9\u53f0\u670d\u52a1\u5668\uff0c\u7136\u540e\u63a5\u7740\u7528\u3002\u4f60\u6c38\u8fdc\u4e0d\u77e5\u9053\u653b\u51fb\u8005\u505a\u8fc7\u4ec0\u4e48\uff0c\u56e0\u6b64\u4f60\u4e5f\u6c38\u8fdc\u65e0\u6cd5\u4fdd\u8bc1\u8fd9\u53f0\u670d\u52a1\u5668\u8fd8\u662f\u5b89\u5168\u7684\u3002<\/p>\n

                \u6700\u597d\u7684\u65b9\u6cd5\u5c31\u662f\u62f7\u8d1d\u51fa\u6240\u6709\u7684\u6570\u636e\uff0c\u7136\u540e\u91cd\u88c5\u7cfb\u7edf\u3002\uff08LCTT \u8bd1\u6ce8\uff1a\u4f60\u7684\u7a0b\u5e8f\u8fd9\u65f6\u5df2\u7ecf\u4e0d\u53ef\u4fe1\u4e86\uff0c\u4f46\u662f\u6570\u636e\u4e00\u822c\u6765\u8bf4\u6ca1\u95ee\u9898\u3002\uff09<\/p>\n

                \n

                via:\u00a0https:\/\/bash-prompt.net\/guides\/server-hacked\/<\/a><\/p>\n

                \u4f5c\u8005\uff1aElliot Cooper<\/a>\u00a0\u8bd1\u8005\uff1alujun9972<\/a>\u00a0\u6821\u5bf9\uff1awxy<\/a><\/p>\n

                \u672c\u6587\u7531\u00a0LCTT<\/a>\u00a0\u539f\u521b\u7f16\u8bd1\uff0cLinux\u4e2d\u56fd<\/a>\u00a0\u8363\u8a89\u63a8\u51fa<\/p>\n","protected":false},"excerpt":{"rendered":"

                \u7f16\u8bd1\u81ea\uff1ahttps:\/\/bash-prompt.net\/guides\/server-hacked\/\u4f5c\u8005\uff1a El … \u7ee7\u7eed\u9605\u8bfb\u4e00\u4e2a\u6700\u521d\u7ea7\u7684\u6e05\u5355\uff1a\u5982\u4f55\u5224\u65adLinux\u670d\u52a1\u5668\u662f\u5426\u88ab\u5165\u4fb5\uff1f<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":3228,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[117],"tags":[],"class_list":["post-3218","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-network"],"_links":{"self":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/posts\/3218","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3218"}],"version-history":[{"count":0,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/posts\/3218\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/media\/3228"}],"wp:attachment":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}