{"id":37860,"date":"2025-05-18T07:16:01","date_gmt":"2025-05-17T23:16:01","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/37860.html"},"modified":"2025-05-18T07:16:01","modified_gmt":"2025-05-17T23:16:01","slug":"%e5%ae%89%e5%85%a8%e5%ae%9e%e6%88%98-%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%8c%96%e7%9f%bf%e7%97%85%e6%af%92%e5%a4%a7%e6%89%ab%e9%99%a4%ef%bc%9a%e6%a3%80%e6%b5%8b%e3%80%81%e6%b8%85","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/37860.html","title":{"rendered":"[\u5b89\u5168\u5b9e\u6218] \u670d\u52a1\u5668\u6316\u77ff\u75c5\u6bd2\u201c\u5927\u626b\u9664\u201d\uff1a\u68c0\u6d4b\u3001\u6e05\u7406\u4e0e\u540e\u7eed\u52a0\u56fa\u6307\u5357"},"content":{"rendered":"<p>\n \u66f4\u591a\u670d\u52a1\u5668\u77e5\u8bc6&#xff0c;\u5c3d\u5728hostol.com<\/p>\n<p>\u201c\u6211\u7684\u670d\u52a1\u5668\u6700\u8fd1\u600e\u4e48\u8ddf\u62d6\u62c9\u673a\u4e00\u6837\u6162&#xff1f;\u201d 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\u2192 \u5f7b\u5e95\u91cd\u88c5\u64cd\u4f5c\u7cfb\u7edf \u2192 \u4ece\u53ef\u4fe1\u6765\u6e90\u6062\u590d\u6570\u636e \u2192 \u5168\u9762\u5b89\u5168\u52a0\u56fa\u3002 \u5982\u679c\u4f60\u51b3\u5b9a\u5c1d\u8bd5\u624b\u52a8\u6e05\u7406&#xff0c;\u8bf7\u52a1\u5fc5\u5c0f\u5fc3\u64cd\u4f5c&#xff0c;\u5e76\u7406\u89e3\u5176\u4e2d\u7684\u98ce\u9669\u3002<\/p>\n<\/p>\n<p>\u597d\u4e86&#xff0c;\u5fc3\u7406\u5efa\u8bbe\u5b8c\u6bd5&#xff0c;\u8ba9\u6211\u4eec\u5f00\u59cb\u8fd9\u573a\u4e0e\u201c\u6570\u5b57\u5bc4\u751f\u866b\u201d\u7684\u6218\u6597\u5427&#xff01;<\/p>\n<\/p>\n<h4 id=\"detection\">\u7b2c\u4e00\u7ae0&#xff1a;\u201c\u4f53\u6e29\u8ba1\u201d\u4e0e\u201c\u542c\u8bca\u5668\u201d \u2013 \u68c0\u6d4b\u670d\u52a1\u5668\u662f\u5426\u201c\u53d1\u70e7\u201d&#xff08;\u88ab\u6316\u77ff&#xff09;<\/h4>\n<\/p>\n<p>\u6316\u77ff\u75c5\u6bd2\u6700\u5178\u578b\u7684\u7279\u5f81\u5c31\u662f**\u5f02\u5e38\u9ad8\u7684CPU&#xff08;\u6216GPU&#xff09;\u8d44\u6e90\u6d88\u8017**\u3002\u6211\u4eec\u53ef\u4ee5\u4ece\u8fd9\u4e2a\u7a81\u7834\u53e3\u5165\u624b&#xff0c;\u5bfb\u627e\u201c\u75c5\u75c7\u201d\u3002<\/p>\n<\/p>\n<h5>1.1. \u6027\u80fd\u5f02\u5e38\u7684\u201c\u6c42\u6551\u4fe1\u53f7\u201d (Performance Red Flags)<\/h5>\n<\/p>\n<p>\u5f53\u670d\u52a1\u5668\u611f\u67d3\u6316\u77ff\u75c5\u6bd2\u540e&#xff0c;\u901a\u5e38\u4f1a\u8868\u73b0\u51fa\u4ee5\u4e0b\u4e00\u4e2a\u6216\u591a\u4e2a\u6027\u80fd\u5f02\u5e38&#xff1a;<\/p>\n<\/p>\n<ul>\n<li>CPU \u4f7f\u7528\u7387\u6301\u7eed\u7206\u8868&#xff1a; \u8fd9\u662f\u6700\u660e\u663e\u7684\u75c7\u72b6\u3002\u901a\u8fc7 top \u6216 htop \u547d\u4ee4\u67e5\u770b&#xff0c;\u4f60\u4f1a\u53d1\u73b0\u4e00\u4e2a\u6216\u591a\u4e2a CPU \u6838\u5fc3\u957f\u65f6\u95f4\u5904\u4e8e 90%-100% \u7684\u4f7f\u7528\u7387&#xff0c;\u800c\u4e14\u901a\u5e38\u662f\u7531\u4e00\u4e9b\u4f60\u4e0d\u8ba4\u8bc6\u7684\u6216\u8005\u540d\u5b57\u770b\u8d77\u6765\u5f88\u53ef\u7591\u7684\u8fdb\u7a0b\u5f15\u8d77\u7684\u3002<\/li>\n<li>\u670d\u52a1\u5668\u54cd\u5e94\u6781\u5ea6\u7f13\u6162&#xff1a; \u7f51\u7ad9\u6253\u5f00\u901f\u5ea6\u50cf\u8717\u725b&#xff0c;SSH \u767b\u5f55\u548c\u6267\u884c\u547d\u4ee4\u90fd\u5361\u987f\u65e0\u6bd4&#xff0c;\u751a\u81f3\u5b8c\u5168\u65e0\u6cd5\u63d0\u4f9b\u6b63\u5e38\u670d\u52a1\u3002<\/li>\n<li>\u670d\u52a1\u5668\u6e29\u5ea6\u5347\u9ad8&#xff0c;\u98ce\u6247\u72c2\u8f6c&#xff1a; \u7531\u4e8e CPU\/GPU \u6301\u7eed\u9ad8\u8d1f\u8f7d\u8fd0\u884c&#xff0c;\u670d\u52a1\u5668\u5185\u90e8\u6e29\u5ea6\u4f1a\u663e\u8457\u5347\u9ad8&#xff0c;\u6563\u70ed\u98ce\u6247\u4f1a\u4ee5\u6700\u5927\u529f\u7387\u8fd0\u8f6c&#xff0c;\u566a\u97f3\u4e5f\u6bd4\u5e73\u65f6\u5927\u5f97\u591a\u3002<\/li>\n<li>&#xff08;\u9488\u5bf9 GPU \u670d\u52a1\u5668&#xff09;GPU \u4f7f\u7528\u7387\u5f02\u5e38&#xff1a; \u5982\u679c\u4f60\u7684\u670d\u52a1\u5668\u914d\u5907\u4e86 GPU&#xff0c;\u5373\u4f7f\u4f60\u6ca1\u6709\u8fd0\u884c\u4efb\u4f55\u56fe\u5f62\u5904\u7406\u6216 AI \u8ba1\u7b97\u4efb\u52a1&#xff0c;\u4e5f\u53ef\u80fd\u4f1a\u53d1\u73b0 GPU \u5229\u7528\u7387&#xff08;\u901a\u8fc7 nvidia-smi \u547d\u4ee4\u67e5\u770b&#xff09;\u5f02\u5e38\u5730\u9ad8\u3002<\/li>\n<li>\u7f51\u7edc\u6d41\u91cf\u589e\u52a0&#xff08;\u6709\u65f6&#xff09;&#xff1a; \u67d0\u4e9b\u6316\u77ff\u7a0b\u5e8f\u9700\u8981\u4e0e\u77ff\u6c60\u8fdb\u884c\u901a\u4fe1&#xff0c;\u53ef\u80fd\u4f1a\u4ea7\u751f\u4e00\u4e9b\u989d\u5916\u7684\u7f51\u7edc\u6d41\u91cf&#xff0c;\u867d\u7136\u901a\u5e38\u4e0d\u5982 DDoS \u653b\u51fb\u90a3\u4e48\u5938\u5f20&#xff0c;\u4f46\u5982\u679c\u7ed3\u5408\u5176\u4ed6\u75c7\u72b6\u4e5f\u503c\u5f97\u5173\u6ce8\u3002<\/li>\n<\/ul>\n<h5>1.2. \u201c\u63ea\u51fa\u5143\u51f6\u201d&#xff1a;\u5b9a\u4f4d\u53ef\u7591\u8fdb\u7a0b (Identifying Suspicious Processes)<\/h5>\n<\/p>\n<p>\u4e00\u65e6\u53d1\u73b0 CPU \u6216 GPU \u6301\u7eed\u9ad8\u8d1f\u8f7d&#xff0c;\u4e0b\u4e00\u6b65\u5c31\u662f\u627e\u51fa\u90a3\u4e2a\u201c\u5403\u201d\u8d44\u6e90\u7684\u7f6a\u9b41\u7978\u9996\u3002<\/p>\n<\/p>\n<li>\u4f7f\u7528 top \u6216 htop&#xff1a; \u8fd9\u4e24\u4e2a\u547d\u4ee4\u662f\u4f60\u7684\u9996\u9009\u201c\u4fa6\u5bdf\u5175\u201d\u3002 [\u63d0\u793a&#xff1a;\u8bf7\u5c06\u4ee5\u4e0b\u4ee3\u7801\u7247\u6bb5\u590d\u5236\u5e76\u7c98\u8d34\u5230 WordPress \u7684\u201c\u4ee3\u7801\u201d\u533a\u5757\u4e2d] top # \u5728 top \u754c\u9762&#xff0c;\u6309 &#039;P&#039; (\u5927\u5199) \u53ef\u4ee5\u6309 CPU \u4f7f\u7528\u7387\u964d\u5e8f\u6392\u5217\u8fdb\u7a0b # \u6309 &#039;M&#039; (\u5927\u5199) \u53ef\u4ee5\u6309\u5185\u5b58\u4f7f\u7528\u7387\u6392\u5e8f (\u6316\u77ff\u75c5\u6bd2\u901a\u5e38 CPU \u5360\u7528\u9ad8&#xff0c;\u5185\u5b58\u4e0d\u4e00\u5b9a) [\u63d0\u793a&#xff1a;\u8bf7\u5c06\u4ee5\u4e0b\u4ee3\u7801\u7247\u6bb5\u590d\u5236\u5e76\u7c98\u8d34\u5230 WordPress \u7684\u201c\u4ee3\u7801\u201d\u533a\u5757\u4e2d] htop # htop \u754c\u9762\u66f4\u53cb\u597d&#xff0c;\u901a\u5e38\u9ed8\u8ba4\u6309 CPU \u6392\u5e8f&#xff0c;\u53ef\u4ee5\u7528 F6 \u9009\u62e9\u6392\u5e8f\u4f9d\u636e \u4f60\u9700\u8981\u4ed4\u7ec6\u89c2\u5bdf\u8fdb\u7a0b\u5217\u8868\u9876\u90e8\u7684\u90a3\u4e9b\u9ad8 CPU \u5360\u7528\u7684\u8fdb\u7a0b&#xff1a;\n<ul>\n<li>\u8fdb\u7a0b\u540d (COMMAND)&#xff1a; \u662f\u4e0d\u662f\u4e00\u4e9b\u4f60\u5b8c\u5168\u4e0d\u8ba4\u8bc6\u7684\u3001\u540d\u5b57\u5f88\u5947\u602a&#xff08;\u6bd4\u5982\u4e00\u4e32\u968f\u673a\u5b57\u7b26\u3001\u6216\u8005\u6545\u610f\u4f2a\u88c5\u6210\u7cfb\u7edf\u8fdb\u7a0b\u4f46\u62fc\u5199\u6709\u7ec6\u5fae\u5dee\u522b\u5982 kworkerds, systemd-udevd-, ksoftirqds \u7b49&#xff09;\u7684\u8fdb\u7a0b&#xff1f;<\/li>\n<li>\u8fd0\u884c\u7528\u6237 (USER)&#xff1a; \u8fd9\u4e2a\u9ad8 CPU \u8fdb\u7a0b\u662f\u4ee5\u4ec0\u4e48\u7528\u6237\u8eab\u4efd\u8fd0\u884c\u7684&#xff1f;\u662f root&#xff1f;\u67d0\u4e2a Web \u670d\u52a1\u7528\u6237&#xff08;\u5982 www-data, nginx&#xff09;&#xff1f;\u8fd8\u662f\u4e00\u4e2a\u4f60\u4e0d\u8ba4\u8bc6\u7684\u666e\u901a\u7528\u6237&#xff1f;\u5982\u679c www-data \u7528\u6237\u5728\u8fd0\u884c\u4e00\u4e2a\u4e0e Web \u670d\u52a1\u65e0\u5173\u7684\u3001CPU \u5360\u7528\u6781\u9ad8\u7684\u7a0b\u5e8f&#xff0c;\u90a3\u5c31\u8981\u9ad8\u5ea6\u6000\u7591\u4e86\u3002<\/li>\n<li>CPU \u5360\u7528\u7387 (%CPU)&#xff1a; \u662f\u5426\u6709\u4e00\u4e2a\u6216\u591a\u4e2a\u8fdb\u7a0b\u957f\u65f6\u95f4&#xff08;\u6bd4\u5982\u51e0\u5206\u949f\u751a\u81f3\u51e0\u5c0f\u65f6&#xff09;\u7a33\u5b9a\u5730\u5360\u636e\u7740\u63a5\u8fd1 100% (\u5355\u6838) \u6216 N*100% (N\u6838) \u7684 CPU&#xff1f;<\/li>\n<\/ul>\n<p> \u8bb0\u4e0b\u8fd9\u4e9b\u53ef\u7591\u8fdb\u7a0b\u7684 PID (\u8fdb\u7a0bID) \u548c\u5b8c\u6574\u547d\u4ee4\u8def\u5f84\u3002<\/li>\n<li>\u4f7f\u7528 ps aux \u8f85\u52a9\u786e\u8ba4&#xff1a; ps \u547d\u4ee4\u4e5f\u80fd\u5e2e\u4f60\u5217\u51fa\u8fdb\u7a0b\u4fe1\u606f\u3002 [\u63d0\u793a&#xff1a;\u8bf7\u5c06\u4ee5\u4e0b\u4ee3\u7801\u7247\u6bb5\u590d\u5236\u5e76\u7c98\u8d34\u5230 WordPress \u7684\u201c\u4ee3\u7801\u201d\u533a\u5757\u4e2d] ps aux &#8211;sort&#061;-%cpu | head -n 15 # \u5217\u51fa CPU \u5360\u7528\u6700\u9ad8\u7684 15 \u4e2a\u8fdb\u7a0b \u8fdb\u4e00\u6b65\u786e\u8ba4\u90a3\u4e9b\u5728 top\/htop \u4e2d\u770b\u5230\u7684\u5acc\u7591\u5bf9\u8c61\u3002<\/li>\n<li>\u68c0\u67e5\u8fdb\u7a0b\u7684\u201c\u8001\u5e95\u201d&#xff1a; \u627e\u5230\u4e86\u53ef\u7591\u8fdb\u7a0b\u7684 PID \u540e&#xff0c;\u6df1\u5165\u8c03\u67e5\u5b83\u7684\u201c\u8eab\u4e16\u201d&#xff1a; [\u63d0\u793a&#xff1a;\u8bf7\u5c06\u4ee5\u4e0b\u4ee3\u7801\u7247\u6bb5\u590d\u5236\u5e76\u7c98\u8d34\u5230 WordPress \u7684\u201c\u4ee3\u7801\u201d\u533a\u5757\u4e2d] # \u67e5\u770b\u8fdb\u7a0b\u5bf9\u5e94\u7684\u53ef\u6267\u884c\u6587\u4ef6\u8def\u5f84 (\u5c06 PID \u66ff\u6362\u4e3a\u5b9e\u9645\u7684\u8fdb\u7a0b ID) ls -l \/proc\/PID\/exe # \u67e5\u770b\u8fdb\u7a0b\u542f\u52a8\u65f6\u7684\u5b8c\u6574\u547d\u4ee4\u884c\u53c2\u6570 cat \/proc\/PID\/cmdline ; echo # echo \u662f\u4e3a\u4e86\u6362\u884c&#xff0c;cmdline\u5185\u5bb9\u7528\u7a7a\u5b57\u7b26\u5206\u9694 # \u67e5\u770b\u8fdb\u7a0b\u7684\u5de5\u4f5c\u76ee\u5f55 ls -l \/proc\/PID\/cwd \u53ef\u6267\u884c\u6587\u4ef6\u8def\u5f84\u662f\u4e0d\u662f\u5728\u4e00\u4e2a\u5f88\u5947\u602a\u7684\u5730\u65b9&#xff08;\u6bd4\u5982 \/tmp, \/var\/tmp&#xff0c;\u6216\u8005\u67d0\u4e2a\u7528\u6237\u7684\u5bb6\u76ee\u5f55\u4e0b&#xff09;&#xff1f;\u6587\u4ef6\u540d\u662f\u4e0d\u662f\u5f88\u53ef\u7591&#xff1f;\u547d\u4ee4\u884c\u53c2\u6570\u6709\u6ca1\u6709\u4ec0\u4e48\u4e0d\u6b63\u5e38\u7684&#xff1f;\u8fd9\u4e9b\u90fd\u80fd\u63d0\u4f9b\u91cd\u8981\u7ebf\u7d22\u3002<\/li>\n<h5>1.3. \u7f51\u7edc\u8fde\u63a5\u201c\u987a\u85e4\u6478\u74dc\u201d (Checking Network Connections)<\/h5>\n<\/p>\n<p>\u6316\u77ff\u7a0b\u5e8f\u9700\u8981\u8fde\u63a5\u5230\u77ff\u6c60\u670d\u52a1\u5668\u624d\u80fd\u8fdb\u884c\u6316\u77ff\u5e76\u63d0\u4ea4\u6210\u679c\u3002\u68c0\u67e5\u53ef\u7591\u8fdb\u7a0b\u7684\u7f51\u7edc\u8fde\u63a5&#xff0c;\u770b\u770b\u5b83\u5728\u548c\u8c01\u201c\u79d8\u5bc6\u52fe\u5f53\u201d\u3002<\/p>\n<\/p>\n<p>[\u63d0\u793a&#xff1a;\u8bf7\u5c06\u4ee5\u4e0b\u4ee3\u7801\u7247\u6bb5\u590d\u5236\u5e76\u7c98\u8d34\u5230 WordPress \u7684\u201c\u4ee3\u7801\u201d\u533a\u5757\u4e2d]<\/p>\n<\/p>\n<p># \u4f7f\u7528 ss \u547d\u4ee4 (\u5c06 PID \u66ff\u6362\u4e3a\u5b9e\u9645\u7684\u8fdb\u7a0b ID)<br \/>\nsudo ss -tulnp | grep &#039;PID&#039;<\/p>\n<p># \u6216\u8005\u4f7f\u7528 netstat \u547d\u4ee4<br \/>\n# sudo netstat -tulnp | grep &#039;PID&#039;<\/p>\n<p>\u67e5\u770b\u8f93\u51fa\u4e2d\u8be5\u8fdb\u7a0b\u5efa\u7acb\u7684 TCP (-t) \u6216 UDP (-u) \u8fde\u63a5\u3002\u91cd\u70b9\u5173\u6ce8 Foreign Address:Port (\u5916\u90e8\u5730\u5740\u548c\u7aef\u53e3)\u3002\u90a3\u4e9b IP \u5730\u5740\u662f\u4e0d\u662f\u4e00\u4e9b\u4f60\u4e0d\u8ba4\u8bc6\u7684\u3001\u6216\u8005\u67e5\u8be2\u540e\u53d1\u73b0\u662f\u5df2\u77e5\u7684\u77ff\u6c60\u670d\u52a1\u5668\u5730\u5740&#xff1f;\u5e38\u89c1\u7684\u77ff\u6c60\u7aef\u53e3\u53f7\u4e5f\u503c\u5f97\u6ce8\u610f&#xff08;\u6bd4\u5982 3333, 4444, 5555, 7777, 8888 \u7b49&#xff0c;\u4f46\u653b\u51fb\u8005\u4e5f\u53ef\u80fd\u4f7f\u7528\u975e\u5e38\u89c4\u7aef\u53e3&#xff09;\u3002<\/p>\n<\/p>\n<p>\u5982\u679c\u4f60\u670d\u52a1\u5668\u4e0a\u7684\u51fa\u7ad9\u6d41\u91cf\u4e5f\u5f02\u5e38\u589e\u9ad8&#xff0c;\u53ef\u4ee5\u4f7f\u7528 sudo iftop -i &lt;\u7f51\u5361\u540d&gt; -n -P \u6765\u5b9e\u65f6\u67e5\u770b\u662f\u54ea\u4e2a\u8fde\u63a5\u5360\u7528\u4e86\u5927\u91cf\u5e26\u5bbd\u3002<\/p>\n<\/p>\n<h5>1.4. \u8ba1\u5212\u4efb\u52a1\u4e0e\u542f\u52a8\u9879\u201c\u6697\u5ea6\u9648\u4ed3\u201d (Inspecting Cron Jobs &amp; Startup Items)<\/h5>\n<\/p>\n<p>\u6316\u77ff\u75c5\u6bd2\u4e3a\u4e86\u201c\u6625\u98ce\u5439\u53c8\u751f\u201d&#xff0c;\u901a\u5e38\u4f1a\u60f3\u5c3d\u529e\u6cd5\u628a\u81ea\u5df1\u52a0\u5165\u5230\u7cfb\u7edf\u7684\u8ba1\u5212\u4efb\u52a1\u6216\u542f\u52a8\u9879\u4e2d&#xff0c;\u4ee5\u4fbf\u5728\u88ab\u6740\u6b7b\u540e\u80fd\u81ea\u52a8\u91cd\u542f&#xff0c;\u6216\u8005\u5728\u670d\u52a1\u5668\u91cd\u542f\u540e\u81ea\u52a8\u8fd0\u884c\u3002<\/p>\n<\/p>\n<ul>\n<li>\u68c0\u67e5\u8ba1\u5212\u4efb\u52a1 (Cron Jobs): [\u63d0\u793a&#xff1a;\u8bf7\u5c06\u4ee5\u4e0b\u4ee3\u7801\u7247\u6bb5\u590d\u5236\u5e76\u7c98\u8d34\u5230 WordPress \u7684\u201c\u4ee3\u7801\u201d\u533a\u5757\u4e2d] # \u68c0\u67e5 root \u7528\u6237\u7684\u8ba1\u5212\u4efb\u52a1 sudo crontab -l -u root # \u68c0\u67e5\u5f53\u524d\u7528\u6237\u7684\u8ba1\u5212\u4efb\u52a1 crontab -l # \u9010\u4e2a\u68c0\u67e5\u5176\u4ed6\u53ef\u80fd\u88ab\u5229\u7528\u7684\u7528\u6237 (\u5982 www-data, nginx, mysql \u7b49) # sudo crontab -l -u www-data # \u68c0\u67e5\u7cfb\u7edf\u7ea7\u7684\u8ba1\u5212\u4efb\u52a1\u76ee\u5f55 ls -l \/etc\/crontab ls -l \/etc\/cron.d\/ ls -l \/etc\/cron.hourly\/ \/etc\/cron.daily\/ \/etc\/cron.weekly\/ \/etc\/cron.monthly\/ \u4ed4\u7ec6\u67e5\u770b\u8fd9\u4e9b\u8ba1\u5212\u4efb\u52a1\u5217\u8868\u548c\u76ee\u5f55\u4e2d\u7684\u811a\u672c&#xff0c;\u6709\u6ca1\u6709\u4f60\u4e0d\u8ba4\u8bc6\u7684\u3001\u6216\u8005\u770b\u8d77\u6765\u5f88\u53ef\u7591\u7684\u6761\u76ee&#xff1f;\u6bd4\u5982\u6bcf\u9694\u51e0\u5206\u949f\u5c31\u6267\u884c\u4e00\u4e2a\u4f4d\u4e8e \/tmp \u6216\u67d0\u4e2a\u9690\u853d\u76ee\u5f55\u4e0b\u7684\u811a\u672c&#xff1f;<\/li>\n<li>\u68c0\u67e5\u7cfb\u7edf\u670d\u52a1\u4e0e\u542f\u52a8\u9879 (Systemd Services \/ Init Scripts): \u73b0\u4ee3 Linux \u7cfb\u7edf\u4e3b\u8981\u4f7f\u7528 systemd \u6765\u7ba1\u7406\u670d\u52a1\u3002 [\u63d0\u793a&#xff1a;\u8bf7\u5c06\u4ee5\u4e0b\u4ee3\u7801\u7247\u6bb5\u590d\u5236\u5e76\u7c98\u8d34\u5230 WordPress \u7684\u201c\u4ee3\u7801\u201d\u533a\u5757\u4e2d] # \u5217\u51fa\u6240\u6709\u6b63\u5728\u8fd0\u884c\u7684\u670d\u52a1\u5355\u5143 sudo systemctl list-units &#8211;type&#061;service &#8211;state&#061;running # \u5217\u51fa\u6240\u6709\u5df2\u542f\u7528\u7684\u670d\u52a1\u5355\u5143 (\u5f00\u673a\u81ea\u542f) sudo systemctl list-unit-files &#8211;type&#061;service &#8211;state&#061;enabled \u4ed4\u7ec6\u68c0\u67e5\u5217\u8868&#xff0c;\u6709\u6ca1\u6709\u540d\u5b57\u5947\u602a\u7684\u3001\u6216\u8005\u63cf\u8ff0\u53ef\u7591\u7684\u670d\u52a1&#xff1f;\u53ef\u4ee5\u901a\u8fc7 sudo systemctl cat &lt;\u670d\u52a1\u540d&gt; \u6765\u67e5\u770b\u670d\u52a1\u5355\u5143\u6587\u4ef6\u7684\u5177\u4f53\u5185\u5bb9&#xff0c;\u770b\u770b\u5b83\u5230\u5e95\u6267\u884c\u4e86\u4ec0\u4e48\u547d\u4ee4\u3002 \u5bf9\u4e8e\u8001\u65e7\u7cfb\u7edf&#xff0c;\u53ef\u80fd\u8fd8\u9700\u8981\u68c0\u67e5 \/etc\/init.d\/ \u76ee\u5f55\u4e0b\u7684\u542f\u52a8\u811a\u672c\u3002<\/li>\n<li>\u68c0\u67e5 Shell \u542f\u52a8\u811a\u672c&#xff1a; \u653b\u51fb\u8005\u4e5f\u53ef\u80fd\u4fee\u6539\u7528\u6237\u7684 Shell \u542f\u52a8\u811a\u672c&#xff08;\u5982 ~\/.bashrc, ~\/.profile, \/etc\/bash.bashrc, \/etc\/profile, \/etc\/profile.d\/ \u4e0b\u7684\u811a\u672c&#xff09;&#xff0c;\u5728\u7528\u6237\u767b\u5f55\u65f6\u81ea\u52a8\u6267\u884c\u6076\u610f\u7a0b\u5e8f\u3002\u68c0\u67e5\u8fd9\u4e9b\u6587\u4ef6\u662f\u5426\u6709\u4e0d\u660e\u7684\u3001\u53ef\u7591\u7684\u547d\u4ee4\u6216\u811a\u672c\u8c03\u7528\u3002<\/li>\n<\/ul>\n<h5>1.5. \u6587\u4ef6\u7cfb\u7edf\u4e2d\u7684\u201c\u86db\u4e1d\u9a6c\u8ff9\u201d (Suspicious Files &amp; Directories)<\/h5>\n<\/p>\n<p>\u6316\u77ff\u75c5\u6bd2\u901a\u5e38\u4f1a\u628a\u81ea\u5df1&#xff08;\u53ef\u6267\u884c\u6587\u4ef6\u3001\u811a\u672c\u3001\u914d\u7f6e\u6587\u4ef6&#xff09;\u85cf\u5728\u4e00\u4e9b\u4e0d\u5f15\u4eba\u6ce8\u610f\u7684\u5730\u65b9\u3002<\/p>\n<\/p>\n<ul>\n<li>\u5173\u6ce8\u4e34\u65f6\u76ee\u5f55\u548c\u53ef\u5199\u76ee\u5f55&#xff1a; \/tmp, \/var\/tmp, \u4ee5\u53ca Web \u670d\u52a1\u5668\u7528\u6237 (\u5982 www-data) \u62e5\u6709\u5199\u5165\u6743\u9650\u7684\u76ee\u5f55&#xff08;\u5982\u7f51\u7ad9\u4e0a\u4f20\u76ee\u5f55\u3001\u7f13\u5b58\u76ee\u5f55&#xff09;\u662f\u5e38\u89c1\u7684\u85cf\u8eab\u4e4b\u5904\u3002<\/li>\n<li>\u67e5\u627e\u8fd1\u671f\u88ab\u4fee\u6539\u6216\u521b\u5efa\u7684\u6587\u4ef6&#xff1a; \u5982\u679c\u4f60\u5927\u81f4\u77e5\u9053\u670d\u52a1\u5668\u662f\u4ec0\u4e48\u65f6\u5019\u5f00\u59cb\u53d8\u6162\u7684&#xff0c;\u53ef\u4ee5\u7528 find \u547d\u4ee4\u67e5\u627e\u90a3\u6bb5\u65f6\u95f4\u5185\u88ab\u4fee\u6539\u6216\u521b\u5efa\u7684\u6587\u4ef6&#xff1a; [\u63d0\u793a&#xff1a;\u8bf7\u5c06\u4ee5\u4e0b\u4ee3\u7801\u7247\u6bb5\u590d\u5236\u5e76\u7c98\u8d34\u5230 WordPress \u7684\u201c\u4ee3\u7801\u201d\u533a\u5757\u4e2d] # \u67e5\u627e\u8fc7\u53bb3\u5929\u5185\u88ab\u4fee\u6539\u8fc7\u7684\u6587\u4ef6 sudo find \/ -mtime -3 -ls 2&gt;\/dev\/null # \u67e5\u627e\u8fc7\u53bb3\u5929\u5185\u72b6\u6001\u88ab\u6539\u53d8\u8fc7\u7684\u6587\u4ef6 (\u5305\u62ec\u521b\u5efa\u3001\u6743\u9650\u4fee\u6539\u7b49) sudo find \/ -ctime -3 -ls 2&gt;\/dev\/null # \u67e5\u627e\u8fc7\u53bb1\u5c0f\u65f6\u5185\u88ab\u4fee\u6539\u8fc7\u7684\u6587\u4ef6 sudo find \/ -mmin -60 -ls 2&gt;\/dev\/null (2&gt;\/dev\/null \u662f\u4e3a\u4e86\u5ffd\u7565\u6743\u9650\u4e0d\u8db3\u7684\u9519\u8bef\u63d0\u793a&#xff0c;\u8ba9\u8f93\u51fa\u66f4\u5e72\u51c0)\u3002\u4ed4\u7ec6\u68c0\u67e5\u8f93\u51fa\u7ed3\u679c\u4e2d\u662f\u5426\u6709\u53ef\u7591\u7684\u6587\u4ef6\u540d\u6216\u8def\u5f84\u3002<\/li>\n<li>\u6ce8\u610f\u9690\u85cf\u6587\u4ef6\u548c\u4f2a\u88c5\u6587\u4ef6\u540d&#xff1a; \u6076\u610f\u6587\u4ef6\u53ef\u80fd\u4ee5\u70b9 (.) \u5f00\u5934&#xff08;\u6bd4\u5982 .xmrig&#xff09;&#xff0c;\u6216\u8005\u4f2a\u88c5\u6210\u5e38\u89c1\u7684\u7cfb\u7edf\u6587\u4ef6\u540d\u4f46\u5b9e\u9645\u662f\u53ef\u6267\u884c\u7a0b\u5e8f&#xff08;\u6bd4\u5982\u4e00\u4e2a\u540d\u4e3a cron \u7684\u53ef\u6267\u884c\u6587\u4ef6\u653e\u5728\u4e86 \/tmp 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