{"id":65782,"date":"2020-09-29T09:00:00","date_gmt":"2020-09-29T01:00:00","guid":{"rendered":"https:\/\/blog.trendmicro.com.tw\/?p=65782"},"modified":"2020-09-25T16:52:43","modified_gmt":"2020-09-25T08:52:43","slug":"%e8%a7%a3%e6%9e%90-ngrok-%e6%9b%b2%e6%8a%98%e7%9a%84%e6%94%bb%e6%93%8a%e7%a8%8b%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/blog.trendmicro.com.tw\/?p=65782","title":{"rendered":"\u89e3\u6790 Ngrok \u66f2\u6298\u7684\u653b\u64ca\u7a0b\u5e8f"},"content":{"rendered":"\n

<\/h1>\n\n\n\n

<\/p>\n\n\n\n

\u8da8\u52e2\u79d1\u6280 Managed XDR<\/a> \u8a17\u7ba1\u5f0f\u5075\u6e2c\u53ca\u56de\u61c9\u670d\u52d9\u5718\u968a\u6700\u8fd1\u8655\u7406\u4e86\u4e00\u6a01\u5ba2\u6236\u8cc7\u5b89\u4e8b\u4ef6\uff0c\u6b79\u5f92\u5728\u8a72\u4e8b\u4ef6\u4e2d\u904b\u7528\u4e86\u4e00\u7a2e\u7279\u6b8a\u7684\u653b\u64ca\u6280\u5de7\uff0c\u589e\u52a0\u4e86\u8cc7\u5b89\u5718\u968a\u548c\u7814\u7a76\u4eba\u54e1\u91d0\u6e05\u99ed\u5ba2\u653b\u64ca\u7a0b\u5e8f\u7684\u96e3\u5ea6\u3002<\/p><\/blockquote>\n\n\n\n

\n\n\n\n

\u63a1\u7528 \u7aef\u9ede\u5075\u6e2c\u53ca\u56de\u61c9 (EDR)<\/a><\/strong> \u8cc7\u5b89\u89e3\u6c7a\u65b9\u6848\u7684\u4e00\u9805\u4e3b\u8981\u597d\u8655\u5c31\u662f\uff0c\u80fd\u8b93\u7dad\u8b77\u53ca\u5206\u6790\u4f01\u696d\u7db2\u8def\u9632\u79a6\u72c0\u6cc1\u7684\u8cc7\u5b89\u5718\u968a\u80fd\u638c\u63e1\u81ea\u8eab\u74b0\u5883\u7684\u53ef\u8996\u6027\u4f86\u63d0\u65e9\u5075\u6e2c\u653b\u64ca\uff0c\u4e26\u900f\u904e\u8996\u89ba\u5316\u65b9\u5f0f\u4e86\u89e3\u6b63\u5728\u767c\u751f\u7684\u8cc7\u5b89\u4e8b\u4ef6\u3002\u96d6\u7136\u50cf\u9019\u6a23\u7684\u6280\u8853\u78ba\u5be6\u8b93\u7db2\u8def\u8cc7\u5b89\u7522\u696d\u6574\u9ad4\u90fd\u6709\u6240\u63d0\u5347\uff0c\u4f46\u6b79\u5f92\u7684\u5de5\u5177\u548c\u6280\u5de7\u537b\u4e5f\u540c\u6a23\u56e0\u61c9\u9019\u6a23\u7684\u767c\u5c55\u8da8\u52e2\u800c\u6f14\u9032\u3002<\/p>\n\n\n\n

 \u8da8\u52e2\u79d1\u6280 Managed XDR<\/a>\u8a17\u7ba1\u5f0f\u5075\u6e2c\u53ca\u56de\u61c9\u670d\u52d9\u5718\u968a\u6700\u8fd1\u8655\u7406\u4e86\u4e00\u6a01\u5ba2\u6236\u8cc7\u5b89\u4e8b\u4ef6\uff0c\u6b79\u5f92\u5728\u8a72\u4e8b\u4ef6\u4e2d\u904b\u7528\u4e86\u4e00\u7a2e\u7279\u6b8a\u7684\u653b\u64ca\u6280\u5de7\uff0c\u589e\u52a0\u4e86\u8cc7\u5b89\u5718\u968a\u548c\u7814\u7a76\u4eba\u54e1\u91d0\u6e05\u99ed\u5ba2\u653b\u64ca\u7a0b\u5e8f\u7684\u96e3\u5ea6\u3002<\/p>\n\n\n\n

<\/div>\n\n\n\n

\u521d\u6b65\u8abf\u67e5<\/h1>\n\n\n\n

<\/p>\n\n\n\n

2020 \u5e74 7 \u6708\uff0c\u6211\u5011\u7d93\u7531 \u8da8\u52e2\u79d1\u6280Apex One<\/a>\u5728\u5ba2\u6236\u74b0\u5883\u89c0\u5bdf\u5230\u4ee5\u4e0b\u53ef\u7591\u7684\u7cfb\u7d71\u4e8b\u4ef6\uff1a<\/p>\n\n\n\n

Process: c:\\windows\\system32\\reg.exe CommandLine:REG ADD HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run \/v <value<\/em>> \/t REG_SZ \/d “\\”c:\\Windows\\system32\\<random name<\/em>>\\”” \/f<\/p>\n\n\n\n

\u6b64\u4e8b\u4ef6\u6709\u5e7e\u9ede\u503c\u5f97\u6ce8\u610f\uff1a\u9996\u5148\uff0c\u8a72\u6307\u4ee4\u6240\u5efa\u7acb\u7684\u7cfb\u7d71\u767b\u9304\u6578\u503c\u7684\u540d\u7a31\u662f\u6839\u64da\u67d0\u500b\u8cc7\u5b89\u5ee0\u5546\u4f86\u547d\u540d\u3002\u5176\u6b21\uff0c\u767b\u9304\u6578\u503c\u7684\u540d\u7a31 (\u5728 <value> \u90e8\u5206) \u51fa\u73fe\u4e86\u4e00\u500b\u62fc\u5b57\u932f\u8aa4 (\u4e5f\u8a31\u662f\u6545\u610f\u7684\uff0c\u6b64\u8655\u70ba\u4e86\u4fdd\u5bc6\u66ab\u4e0d\u986f\u793a)\u3002\u6700\u5f8c\uff0c\u5728\u7cfb\u7d71\u76ee\u9304\u7576\u4e2d\u6709\u4e00\u500b\u96a8\u6a5f\u547d\u540d\u7684\u57f7\u884c\u6a94\u3002\u9019\u6240\u6709\u56e0\u7d20\u52a0\u5728\u4e00\u8d77\uff0c\u8b93\u6211\u5011\u76f4\u89ba\u8a8d\u70ba\u9019\u662f\u4e00\u9805\u8b66\u8a0a\u3002

\u7d50\u679c\u9019\u500b\u57f7\u884c\u6a94\u78ba\u5be6\u662f\u4e00\u500b\u9375\u76e4\u5074\u9304\u7a0b\u5f0f\uff0c\u5b83\u6703\u5c07\u5074\u9304\u5230\u7684\u6ed1\u9f20\u8207\u9375\u76e4\u8f38\u5165\u50b3\u9001\u5230\u67d0\u500b Gmail \u5e33\u865f\u3002\u6211\u5011\u5728\u4e8c\u9032\u4f4d\u6a94\u6848\u4e2d\u767c\u73fe\u4e86\u4e00\u4e9b\u5beb\u6b7b\u7684\u8cc7\u8a0a\uff0c\u8b49\u660e\u5b83\u662f\u5c08\u70ba\u67d0\u500b\u76ee\u6a19\u6a5f\u69cb\u800c\u91cf\u8eab\u8a02\u88fd\u3002\u4e0d\u50c5\u5982\u6b64\uff0c\u6211\u5011\u4e5f\u5f9e\u4e8c\u9032\u4f4d\u6a94\u6848\u4e2d\u5f97\u77e5\uff0c\u99ed\u5ba2\u5c0d\u8a72\u6a5f\u69cb\u6709\u76f8\u7576\u7a0b\u5ea6\u7684\u4e86\u89e3\u3002<\/p>\n\n\n\n

\u6211\u5011\u7528\u9019\u500b\u9375\u76e4\u5074\u9304\u7a0b\u5f0f\u7684\u6a94\u540d\u548c\u96dc\u6e4a\u78bc\u5728\u7cfb\u7d71\u8a18\u9304\u548c\u4e8b\u4ef6\u7576\u4e2d\u641c\u5c0b\u4e4b\u5f8c\u767c\u73fe\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n\n\n\n\n\n\n\n

<\/div>\n\n\n\n

\u6a94\u6848\u4e8b\u4ef6<\/h2>\n\n\n\n

<\/p>\n\n\n\n

\u6839\u64da\u4e8b\u4ef6\u5206\u6790\u6307\u51fa\uff0c\u6b64\u9375\u76e4\u5074\u9304\u7a0b\u5f0f\u662f\u7531\u300cntoskrnl.exe\u300d\u9019\u500b\u8655\u7406\u7a0b\u5e8f\u6240\u690d\u5165\u7cfb\u7d71\u3002\u9019\u8868\u793a\u8a72\u6a94\u6848\u4e0d\u662f\u7d93\u7531\u7db2\u8def\u5171\u7528\u3001\u5c31\u662f\u7d93\u7531\u7cfb\u7d71\u6838\u5fc3 (kernel) \u7684\u6f0f\u6d1e\u88ab\u690d\u5165\u7cfb\u7d71\u3002<\/p>\n\n\n\n

\"analysis-attack-chain-ngorok-1\"
\u5716 1\uff1aNtoskrnl.exe \u5728\u7cfb\u7d71\u4e0a\u690d\u5165\u7684\u9375\u76e4\u5074\u9304\u7a0b\u5f0f\u3002<\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n\n

\u5305\u542b\u6307\u4ee4\u5217\u53c3\u6578\u7684\u4e8b\u4ef6<\/h2>\n\n\n\n
<\/div>\n\n\n\n

<\/p>\n\n\n\n

\u96d6\u7136\uff0c\u8981\u627e\u5230\u542b\u6709\u524d\u8ff0\u96a8\u6a5f\u6a94\u540d\u7684 reg.exe \u8655\u7406\u7a0b\u5e8f\u7684\u4e8b\u4ef6\u4e26\u4e0d\u96e3 (\u7562\u7adf\u5c31\u662f\u9019\u4e9b\u4e8b\u4ef6\u89f8\u767c\u4e86\u6574\u500b\u8abf\u67e5\u7a0b\u5e8f)\uff0c\u4f46 reg.exe \u4e8b\u4ef6\u4e4b\u524d\u6240\u767c\u751f\u7684\u4e8b\u4ef6\u5c31\u4f3c\u4e4e\u6c92\u90a3\u9ebc\u5bb9\u6613\u638c\u63e1\u3002<\/p>\n\n\n\n

\"analysis-attack-chain-ngorok-2\"\/
\u5716 2\uff1areg.exe \u8655\u7406\u7a0b\u5e8f\u4e8b\u4ef6\u4e4b\u524d\u767c\u751f\u7684\u4e00\u9023\u4e32\u4e8b\u4ef6\u3002<\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n\n

\u9375\u76e4\u5074\u9304\u7a0b\u5f0f\u547c\u53eb reg.exe \u4f86\u8b93\u5176\u5e38\u99d0\u7cfb\u7d71\u7684\u884c\u70ba\u4f3c\u4e4e\u4e0d\u662f\u653b\u64ca\u7684\u6e90\u982d\uff0c\u53e6\u4e00\u500b\u8655\u7406\u7a0b\u5e8f\uff1a\u300cservices.exe\u300d\u4f3c\u4e4e\u624d\u662f\u6574\u500b\u7a0b\u5e8f\u7684\u6839\u6e90\u3002\u99ed\u5ba2\u5148\u5efa\u7acb\u4e00\u500b\u7cfb\u7d71\u670d\u52d9\u4f86\u555f\u52d5\u4e00\u9023\u4e32\u7684\u300ccmd.exe\u300d(\u547d\u4ee4\u63d0\u793a\u5b57\u5143) \u8655\u7406\u7a0b\u5e8f\uff0c\u6700\u5f8c\u624d\u57f7\u884c reg.exe (\u7cfb\u7d71\u767b\u9304) \u7a0b\u5f0f\u4f86\u5e38\u99d0\u7cfb\u7d71\u3002<\/p>\n\n\n\n

<\/div>\n\n\n\n

\u7cfb\u7d71\u767b\u9304\u8cc7\u6599<\/h2>\n\n\n\n

<\/p>\n\n\n\n

\u7d93\u904e\u8abf\u67e5\uff0c\u6211\u5011\u767c\u73fe\u8a72\u670d\u52d9\u7684\u7cfb\u7d71\u767b\u9304\u8cc7\u6599\u5305\u542b\u4ee5\u4e0b\u50b3\u5165 reg.exe \u7684\u6307\u4ee4\u5217\u53c3\u6578\uff1a<\/p>\n\n\n\n

Reg Key: hklm\\system\\currentcontrolset\\services\\<random>
Reg Value: imagepath
Reg Data:%COMSPEC% \/C echo REG ADD
HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run \/v <value<\/em>> \/t REG_SZ \/d
“\\”c:\\Windows\\system32\\<random<\/em>>\\”” \/f ^> %SYSTEMDRIVE%\\WINDOWS\\Temp\\<random<\/em>>.txt >
\\WINDOWS\\Temp\\<random<\/em>>.bat & %COMSPEC% \/C start %COMSPEC% \/C
\\WINDOWS\\Temp\\<random>.bat<\/p>\n\n\n\n

\u5f9e\u9019\u4e9b\u767b\u9304\u8cc7\u6599\u5c31\u80fd\u7406\u89e3\u70ba\u4f55\u5728\u57f7\u884c reg.exe \u4e4b\u524d\u6703\u6709\u524d\u8ff0\u4e00\u9023\u4e32\u7684 cmd.exe \u8655\u7406\u7a0b\u5e8f\u3002\u7b2c\u4e00\u500b cmd.exe \u6307\u4ee4\u5217\u5305\u542b\u300c%COMSPEC%\u300d\u5f8c\u9762\u7684\u5b57\u4e32\uff0c\u7b2c\u4e8c\u500b cmd.exe \u6307\u4ee4\u5217\u5247\u5305\u542b\u7b2c\u4e8c\u500b\u300c%COMSPEC%\u300d\u5f8c\u9762\u7684\u5b57\u4e32\uff0c\u4f9d\u6b64\u985e\u63a8\u3002<\/p>\n\n\n\n

<\/div>\n\n\n\n

\u6df1\u5165\u8ffd\u67e5<\/h1>\n\n\n\n

<\/p>\n\n\n\n

\u9019\u7a2e\u5148\u5efa\u7acb\u670d\u52d9\u4f86\u555f\u52d5\u6307\u4ee4\u7684\u624b\u6cd5\uff0c\u7b97\u662f\u5f8c\u9580\u7a0b\u5f0f\u6280\u5de7\u7684\u4e00\u7a2e\u3002\u6211\u5011\u4f7f\u7528\u300c%COMSPEC%\u300d\u9019\u4e32\u5b57\u4f86\u641c\u5c0b\u4e26\u6aa2\u8996\u5176\u4ed6\u670d\u52d9\u7684\u767b\u9304\u8cc7\u6599\uff0c\u6700\u5f8c\u627e\u51fa\u4e86\u5e7e\u500b\u7d93\u7531\u9019\u500b\u65b9\u6cd5\u57f7\u884c\u7684\u5de5\u5177\u548c\u6307\u4ee4\u3002<\/p>\n\n\n\n

\u6211\u5011\u5728\u591a\u53f0\u96fb\u8166\u4e0a\u767c\u73fe\u4e86\u4e00\u4e9b\u5f9e\u9019\u500b\u767b\u9304\u8cc7\u6599\u884d\u751f\u51fa\u4f86\u7684\u6307\u4ee4\uff0c\u5982\uff1a\u300cquery user\u300d\u3001\u300cnet user <user account> \/domain\u300d\u3001\u300cping <ip address>\u300d\u7b49\u7b49\u3002\u5047\u4f7f\u9019\u771f\u7684\u662f\u4e00\u7a2e\u65b0\u7684\u5f8c\u9580\u6280\u5de7\uff0c\u90a3\u6211\u5011\u9084\u9700\u8981\u627e\u5230\u771f\u6b63\u8ca0\u8cac\u5c0d\u5916\u901a\u8a0a\u7684\u5143\u4ef6\uff0c\u4ee5\u53ca\u7522\u751f\u9019\u4e9b\u670d\u52d9\u767b\u9304\u8cc7\u6599\u7684\u74b0\u7bc0\u3002<\/p>\n\n\n\n

\u6211\u5011\u7684\u7b2c\u4e00\u500b\u7a81\u7834\u9ede\u662f\u6211\u5011\u767c\u73fe\u4e86\u9019\u9053\u6307\u4ee4\uff1a\u300c<random> tcp –authtoken <token> -config <config file> <ip>:445\u300d\u3002\u5149\u5f9e\u5b83\u7684\u53c3\u6578\u5c31\u80fd\u5224\u65b7\u9019\u61c9\u8a72\u662f\u67d0\u7a2e\u7db2\u8def\u901a\u8a0a\u5de5\u5177\uff0c\u800c\u4e14\u4f7f\u7528\u7684\u662f\u4f01\u696d\u5e38\u7528\u7684\u9023\u63a5\u57e0 (SMB\/TCP 445)\u3002<\/p>\n\n\n\n

\u627e\u5230\u5c0d\u61c9\u6a94\u6848\u5f8c\uff0c\u6211\u5011\u76f8\u4fe1\u5b83\u61c9\u8a72\u662f\u300cngrok\u300d\u8edf\u9ad4\u7684\u62f7\u8c9d\uff0c\u8a72\u8edf\u9ad4\u53ef\u8b93\u4f01\u696d\u5167\u7684\u96fb\u8166\u88ab\u5916\u754c\u770b\u5230\uff0c\u5176\u539f\u7406\u662f\u5c07\u5176\u7db2\u8def\u6d41\u91cf\u7e5e\u7d93 ngrok \u7db2\u7ad9\u3002\u6211\u5011\u5728\u5169\u53f0\u96fb\u8166\u4e0a\u767c\u73fe\u6709\u9019\u500b\u5de5\u5177\uff0c\u610f\u5473\u8457\u9019\u5169\u53f0\u96fb\u8166\u80fd\u88ab\u5916\u754c\u770b\u5230\u3002\u6211\u5011 \u5148\u524d\u5c31\u66fe\u64b0\u6587\u6307\u51fa<\/strong><\/a> ngrok \u53ef\u80fd\u88ab\u60e1\u610f\u6feb\u7528<\/strong><\/a>\u3002<\/p>\n\n\n\n

\u76ee\u524d\u6211\u5011\u9084\u4e0d\u66c9\u5f97\u524d\u8ff0\u7684\u670d\u52d9\u767b\u9304\u8cc7\u6599\u662f\u600e\u9ebc\u4f86\u7684\uff0c\u6211\u5011\u641c\u5c0b\u4e86\u300cpsexesvc.exe\u300d(PsExec \u7684\u4f3a\u670d\u5668\u7aef) \u8207\u300cremotesvc.exe\u300d\u9019\u5169\u500b\u5b57\u4e32\uff0c\u537b\u6c92\u6709\u767c\u73fe\u660e\u78ba\u7684\u5165\u4fb5\u6307\u6a19 (IOC)\u3002\u4e0d\u904e\uff0c\u6211\u5011\u6709\u5728\u67d0\u500b\u4f3a\u670d\u5668\u767b\u9304\u8cc7\u6599\u4e2d\u767c\u73fe\u300cadmin\/smb\/psexec_command\u300d\u9019\u4e32\u5b57\uff0c\u9019\u5f88\u50cf\u662f\u5728\u57f7\u884c Metasploit\u3002\u4f46\u6211\u5011\u77e5\u9053 Metasploit \u7684 PsExec \u6a21\u7d44\u4e0d\u6703\u5728\u76ee\u6a19\u7cfb\u7d71\u4e0a\u690d\u5165\u4e8c\u9032\u4f4d\u6a94\u6848\uff0c\u7d93\u904e\u4e00\u756a\u7814\u7a76\u4e4b\u5f8c\uff0c\u6211\u5011\u767c\u73fe\u67d0\u4e9b\u7248\u672c\u7684 Mimikatz \u548c Impacket \u6703\u6709\u9019\u6a23\u7684\u884c\u70ba\u3002<\/p>\n\n\n\n

<\/div>\n\n\n\n

\u6a21\u64ec\u653b\u64ca<\/h2>\n\n\n\n

<\/p>\n\n\n\n

\u70ba\u4e86\u8a66\u5716\u627e\u51fa\u99ed\u5ba2\u7684\u653b\u64ca\u6a5f\u5236\uff0c\u6211\u5011\u505a\u4e86\u4e00\u500b\u7c21\u55ae\u7684\u6a21\u64ec\u8a66\u9a57\uff0c\u6211\u5011\u5c07 ngrok \u5b89\u88dd\u5728\u67d0\u53f0\u5916\u90e8\u770b\u4e0d\u5230\u4e5f\u7121\u6cd5\u5b58\u53d6\u7684\u96fb\u8166 (A \u96fb\u8166)\u3002<\/p>\n\n\n\n

\"\"\/
\u5716 3\uff1a\u5728\u300cA \u96fb\u8166\u300d\u4e0a\u5b89\u88dd ngrok \u8edf\u9ad4\u3002<\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n\n

Ngrok \u53ef\u5c07\u4efb\u4f55\u300cA \u96fb\u8166\u300d\u53ef\u5b58\u53d6\u7684\u958b\u653e IP \u9023\u63a5\u57e0 (\u5305\u62ec\u5b83\u81ea\u5df1) \u66b4\u9732\u5230\u7db2\u969b\u7db2\u8def\u4e0a\u3002\u5728\u6211\u5011\u7684\u7bc4\u4f8b\u4e2d\uff0cngrok \u6703\u5c07\u53e6\u4e00\u53f0\u96fb\u8166 (B \u96fb\u8166\uff0c\u4f4d\u5740\u5728\uff1a192.168.19.129:445) \u7d93\u7531 ngrok \u4f3a\u670d\u5668\u66b4\u9732\u5728\u7db2\u8def\u4e0a\u3002\u9019\u6a23\u4e00\u4f86\u6211\u5011\u5c31\u80fd\u900f\u904e ngrok \u6240\u914d\u767c\u7684\u7db2\u8def\u4f4d\u5740 2.tcp.ngrok.io:14139 \u4f86\u5b58\u53d6 192.168.19.129:445\u3002<\/p>\n\n\n\n

\u5229\u7528 Impacket \u5de5\u5177\u5957\u4ef6\u7684 Smbexec \u670d\u52d9\u6a21\u7d44\uff0c\u518d\u914d\u5408 B \u96fb\u8166\u7684\u767b\u5165\u6191\u8b49\uff0c\u6211\u5011\u5c31\u80fd\u5f9e\u5916\u90e8\u96fb\u8166\u767c\u9001\u4e00\u500b\u7c21\u55ae\u7684 ping \u6307\u4ee4\u7d66\u300cB \u96fb\u8166\u300d\u3002<\/p>\n\n\n\n

\"analysis-attack-chain-ngorok-4\"\/
\u5716 4\uff1a\u4f7f\u7528\u5916\u90e8\u96fb\u8166\u767c\u9001 ping \u6307\u4ee4\u7d66\u300cB \u96fb\u8166\u300d\u3002<\/figcaption><\/figure>\n\n\n\n

\u5be6\u9a57\u7684\u7d50\u679c\u8ddf\u6211\u5011\u5728\u5ba2\u6236\u74b0\u5883\u89c0\u5bdf\u5230\u7684\u73fe\u8c61\u5f88\u50cf\uff0c\u4e5f\u5c31\u662f\u6709\u4e00\u4e9b\u96a8\u6a5f\u547d\u540d\u7684\u670d\u52d9\u767b\u9304\u8cc7\u6599\u88ab\u5efa\u7acb\u4e4b\u5f8c\u53c8\u88ab\u522a\u9664\u3002\u524d\u8ff0\u6307\u4ee4\u5728\u57f7\u884c\u6642\u4e0d\u9808\u5728\u76ee\u6a19\u96fb\u8166\u4e0a\u690d\u5165\u4efb\u4f55\u4e8c\u9032\u4f4d\u6a94\u6848\u3002<\/p>\n\n\n\n

\u4e0d\u50c5\u5982\u6b64\uff0c\u7531\u65bc\u9019\u4e9b\u6307\u4ee4\u662f\u900f\u904e\u670d\u52d9\u4f86\u57f7\u884c\uff0c\u56e0\u6b64\u64c1\u6709\u8f03\u9ad8\u7684\u6b0a\u9650\u3002\u800c\u4e14\u7531\u65bc\u7db2\u8def\u6d41\u91cf\u90fd\u7e5e\u7d93 ngrok \u670d\u52d9\uff0c\u56e0\u6b64\u5e55\u5f8c\u64cd\u7e31 (C&C) \u4f3a\u670d\u5668\u5176\u5be6\u5c31\u7b49\u65bc\u4e0d\u6703\u88ab\u770b\u898b\u3002\u99ed\u5ba2\u53ea\u8981\u77e5\u9053 ngrok \u914d\u767c\u7684\u516c\u958b\u4f4d\u5740 (\u5982\u524d\u9762\u7684 2.tcp.ngrok.io:14139)\uff0c\u5c31\u80fd\u96a8\u6642\u5f9e\u4efb\u4f55\u5730\u9ede\u9023\u4e0a\u88ab\u99ed\u5165\u7684\u7aef\u9ede\u88dd\u7f6e\u3002<\/p>\n\n\n\n

\"analysis-attack-chain-ngorok-5\"\/
\u5716 5\uff1a\u4f7f\u7528 ngrok \u914d\u767c\u7684\u516c\u958b\u4f4d\u5740\u9023\u4e0a\u88ab\u99ed\u5165\u7684\u96fb\u8166\u3002<\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n\n

\u96d6\u7136\u9019\u6a23\u7684\u6a21\u64ec\u4e0d\u4e00\u5b9a\u80fd\u5b8c\u5168\u91cd\u73fe\u99ed\u5ba2\u7684\u653b\u64ca\u884c\u52d5\uff0c\u4f46\u537b\u63d0\u4f9b\u4e86\u4e0d\u932f\u7684\u5bf6\u8cb4\u8cc7\u8a0a\u8b93\u6211\u5011\u4e86\u89e3\u653b\u64ca\u53ef\u80fd\u767c\u751f\u7684\u7d93\u904e\u3002<\/p>\n\n\n\n

\u6a21\u64ec\u6642\u9700\u8981\u4e00\u53f0\u5b89\u88dd\u4e86 ngrok \u7684\u5167\u90e8\u96fb\u8166\uff0c\u9084\u8981\u77e5\u9053 ngrok \u4f3a\u670d\u5668\u7684\u7db2\u57df\u548c\u9023\u63a5\u57e0\uff0c\u4ee5\u53ca\u4e00\u500b\u7cfb\u7d71\u7ba1\u7406\u54e1\u5e33\u865f\u3002\u6211\u5011\u76f8\u4fe1\u5c0d\u99ed\u5ba2\u4f86\u8aaa\uff0c\u9019\u4e09\u9805\u689d\u4ef6\u61c9\u8a72\u90fd\u80fd\u5177\u5099\uff0c\u56e0\u70ba\u5c31\u662f\u4ed6\u5011\u5728\u5167\u90e8\u96fb\u8166\u4e0a\u5b89\u88dd\u4e86 ngrok \u8edf\u9ad4\uff0c\u800c\u4e14\u4ed6\u5011\u4e5f\u4f3c\u4e4e\u5df2\u6f5b\u4f0f\u5728\u4f01\u696d\u5167\u90e8\u4e00\u6bb5\u6642\u9593\uff0c\u8db3\u4ee5\u6478\u900f\u5167\u90e8\u74b0\u5883\u7684\u60c5\u6cc1\uff0c\u6b64\u5916\uff0c\u4ed6\u5011\u4e5f\u6703\u99ed\u5165\u4e00\u4e9b\u9ad8\u7b49\u7d1a\u6b0a\u9650\u7684\u5e33\u865f\u3002\u7d9c\u5408\u4f86\u770b\uff0c\u6211\u5011\u6240\u6a21\u64ec\u7684\u72c0\u6cc1\u61c9\u8a72\u8ddf\u99ed\u5ba2\u7684\u653b\u64ca\u7a0b\u5e8f\u76f8\u53bb\u4e0d\u9060\u3002<\/p>\n\n\n\n

<\/div>\n\n\n\n

\u63a1\u7528 EDR \u52a0\u4ee5\u53cd\u5236<\/h1>\n\n\n\n

<\/p>\n\n\n\n

\u5716 6 \u986f\u793a\u4e00\u500b\u5178\u578b\u5f8c\u9580\u7a0b\u5f0f\u653b\u64ca\u7a0b\u5e8f\u7684\u6839\u6e90\u5206\u6790\u3002<\/p>\n\n\n\n

\"analysis-attack-chain-ngorok-6\"\/<\/figure>\n\n\n\n
\"analysis-attack-chain-ngorok-6\"\/
6\uff1a\u5178\u578b\u5f8c\u9580\u653b\u64ca\u7a0b\u5e8f\u7684\u6839\u6e90\u5206\u6790\u3002<\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n\n

Shell.exe \u8ca0\u8cac\u5148\u555f\u52d5\u4e00\u500b cmd.exe\uff0c\u518d\u7531\u5f8c\u8005\u555f\u52d5\u8981\u57f7\u884c\u7279\u5b9a\u6307\u4ee4\u7684\u5de5\u5177\u3002\u5716\u4e0a\u4e5f\u6307\u51fa Shell.exe \u53ef\u80fd\u555f\u52d5\u5176\u4ed6\u5df2\u7d93\u5b89\u88dd\u5728\u7cfb\u7d71\u4e0a\u7684\u5de5\u5177\uff0c\u4f8b\u5982\u5716\u4e2d\u7684\u300cToola.exe\u300d\u3002\u50cf\u9019\u6a23\u4e00\u4efd\u6e05\u695a\u7684\u5716\u8868\u5c31\u80fd\u5f88\u65b9\u4fbf\u5730\u627e\u51fa\u53ef\u7591\u7684\u7269\u4ef6\uff0c\u4e26\u53ef\u63cf\u7e6a\u51fa\u653b\u64ca\u7a0b\u5e8f\u7684\u57fa\u672c\u6d41\u7a0b\u3002<\/p>\n\n\n\n

\u91dd\u5c0d\u9019\u6b21\u4e8b\u4ef6\uff0c\u6211\u5011\u7684\u6839\u6e90\u5206\u6790\u662f\u5148\u5f9e services.exe \u8457\u624b\uff0c\u6700\u7d42\u627e\u51fa\u99ed\u5ba2\u6240\u57f7\u884c\u7684\u5de5\u5177\u6216\u6307\u4ee4\u3002\u76ee\u524d\u6c92\u6709\u8b49\u64da\u986f\u793a\u99ed\u5ba2\u4f7f\u7528\u4e86\u6703\u4e0b\u8f09\u5176\u4ed6\u5de5\u5177\u7684\u591a\u91cd\u968e\u6bb5\u5de5\u5177\uff0c\u4e14\u6839\u64da\u99ed\u5ba2\u7684\u5b58\u53d6\u80fd\u529b\u4f86\u770b\uff0c\u99ed\u5ba2\u5f88\u53ef\u80fd\u4e5f\u4e0d\u9700\u8981\u7528\u5230\u9019\u6a23\u7684\u5de5\u5177\u3002\u56e0\u70ba\u99ed\u5ba2\u5df2\u76f4\u63a5\u638c\u63e1\u88ab\u99ed\u5165\u7684\u96fb\u8166\uff0c\u53ef\u57f7\u884c\u4efb\u4f55\u4ed6\u5011\u60f3\u8981\u7684\u5de5\u5177\uff0c\u4e0d\u5fc5\u53bb\u8a2d\u60f3\u4e00\u4e9b\u7279\u5225\u7684\u6a5f\u5236\u4f86\u5b89\u88dd\u60e1\u610f\u6a94\u6848 (\u4f8b\u5982\u5f9e\u67d0\u53f0\u96fb\u8166\u8df3\u5230\u53e6\u4e00\u53f0\u96fb\u8166)\u3002\u63db\u53e5\u8a71\u8aaa\uff0c\u99ed\u5ba2\u5e7e\u4e4e\u53ef\u96a8\u5fc3\u6240\u6b32\u57f7\u884c\u4efb\u4f55\u5de5\u5177\uff0c\u4f8b\u5982\u5b89\u88dd\u9375\u76e4\u5074\u9304\u7a0b\u5f0f\u3002\u99ed\u5ba2\u9019\u6b21\u662f\u7d93\u7531 SMB \u901a\u8a0a\u5354\u5b9a\u5b89\u88dd\u9375\u76e4\u5074\u9304\u7a0b\u5f0f\uff0c\u7136\u5f8c\u518d\u767c\u9001\u53e6\u4e00\u500b\u6307\u4ee4\u4f86\u8b93\u5b83\u5e38\u99d0\u5728\u7cfb\u7d71\u5167\u3002\u99ed\u5ba2\u4e26\u672a\u4f7f\u7528\u672c\u8eab\u5c31\u5177\u5099\u5e38\u99d0\u80fd\u529b\u7684\u9375\u76e4\u5074\u9304\u7a0b\u5f0f\uff0c\u9019\u5f88\u53ef\u80fd\u662f\u56e0\u70ba\u4ed6\u5011\u53ef\u4ee5\u8f15\u6613\u5730\u5f9e\u9060\u7aef\u5efa\u7acb\u7cfb\u7d71\u767b\u9304\u4f86\u8b93\u7a0b\u5f0f\u5e38\u99d0\u3002<\/p>\n\n\n\n

\u5c31\u9019\u8d77\u653b\u64ca\u4e8b\u4ef6\uff0c\u8981\u57f7\u884c\u6709\u6548\u7684\u6839\u6e90\u5206\u6790\u4e26\u4e0d\u5bb9\u6613\uff0c\u56e0\u70ba\u4e00\u5207\u7684\u6e90\u982d\u662f services.exe (\u6216\u53e6\u4e00\u500b Windows \u8655\u7406\u7a0b\u5e8f\uff0c\u4f8b\u5982\u690d\u5165\u6a94\u6848\u6642)\uff0c\u800c\u4e14\u4e00\u6b21\u53ea\u57f7\u884c\u4e00\u500b\u6307\u4ee4\u6216\u5de5\u5177\u3002\u63cf\u7e6a\u9019\u8d77\u653b\u64ca\u7684\u5716\u8868\u770b\u8d77\u4f86\u6216\u8a31\u6703\u9577\u5f97\u597d\u50cf\u4ee5 services.exe \u70ba\u4e2d\u5fc3\u7684\u4e00\u68f5\u6a39\uff0c\u800c\u6bcf\u500b\u6a39\u679d\u5c31\u4ee3\u8868\u4e00\u500b\u7d93\u7531 services.exe \u57f7\u884c\u7684\u6307\u4ee4\u3002<\/p>\n\n\n\n

\u5f9e\u6211\u5011\u7684\u5206\u6790\u5c31\u80fd\u770b\u51fa\uff0c\u6b64\u653b\u64ca\u6240\u63a1\u7528\u7684\u6280\u5de7\u78ba\u5be6\u6703\u963b\u7919\u8cc7\u5b89\u7814\u7a76\u4eba\u54e1\u5728\u4e00\u500b\u7c21\u77ed\u7684\u5716\u8868\u4e2d\u6709\u6548\u63cf\u756b\u51fa\u653b\u64ca\u7684\u7a0b\u5e8f\u3002\u4e0d\u904e\uff0cEDR \u6709\u4e00\u4e9b\u529f\u80fd\u6b63\u662f\u70ba\u4e86\u8655\u7406\u9019\u6a23\u7684\u4e8b\u4ef6\u800c\u8a2d\u8a08\u3002<\/p>\n\n\n\n

<\/div>\n\n\n\n

\u5229\u7528\u53ef\u7591\u4e8b\u4ef6\u4f86\u9632\u7bc4\u5a01\u8105<\/h2>\n\n\n\n

<\/p>\n\n\n\n

\u53ef\u7591\u4e8b\u4ef6\u662f EDR \u89e3\u6c7a\u65b9\u6848\u7576\u4e2d\u4e00\u500b\u5f88\u6709\u6548\u7684\u89f8\u767c\u6a5f\u5236\uff0c\u6240\u4ee5\u8cc7\u5b89\u5718\u968a\u53ef\u5229\u7528\u540c\u6a23\u6a5f\u5236\u4f86\u9632\u7bc4\u8cc7\u5b89\u5a01\u8105\u3002\u5728\u9019\u6b21\u7684\u4e8b\u4ef6\u4e2d\uff0c\u8da8\u52e2\u79d1\u6280 Managed XDR \u5718\u968a\u53ef\u904b\u7528\u4e86 Apex One \u7684\u529f\u80fd\u4f86\u8abf\u67e5\u4e26\u9632\u7bc4\u5a01\u8105\u3002<\/p>\n\n\n\n

<\/div>\n\n\n\n

\u5229\u7528\u8a18\u9304\u7684\u4e8b\u4ef6\u4f86\u57f7\u884c\u8abf\u67e5<\/h2>\n\n\n\n

<\/p>\n\n\n\n

\u50b3\u7d71\u7684\u4e8b\u4ef6\u56de\u61c9\u65b9\u6cd5\u901a\u5e38\u9700\u8981\u57f7\u884c\u67d0\u7a2e\u5de5\u5177\u5f9e\u53ef\u7591\u7684\u4e3b\u6a5f\u64f7\u53d6\u4e00\u4e9b\u8b49\u64da\u3002\u5728\u9019\u6b21\u7684\u8abf\u67e5\u904e\u7a0b\u4e2d\uff0c\u6240\u6709\u7684\u8abf\u67e5\u5de5\u4f5c\u90fd\u4f7f\u7528 EDR \u6240\u8a18\u9304\u7684\u4e8b\u4ef6\u3002\u56e0\u6b64\u5728\u8abf\u67e5\u6642\u4e0d\u9700\u8981\u7528\u5230\u8a18\u61b6\u9ad4\u6216\u78c1\u789f\u6620\u50cf\uff0c\u9019\u8868\u793a\u5149\u9760 EDR \u6240\u8490\u96c6\u7684\u8cc7\u6599\u5c31\u8db3\u4ee5\u5224\u65b7\u50cf\u9019\u6a23\u7684\u653b\u64ca\u5982\u4f55\u904b\u4f5c\u3002\u6307\u4ee4\u7684\u9806\u5e8f\u53ef\u5f9e\u4e8b\u4ef6\u7684\u6642\u9593\u6233\u8a18\u4f86\u52a0\u4ee5\u5224\u65b7\uff0c\u751a\u81f3\u4e0d\u9700\u8981 EDR \u6240\u7522\u751f\u7684\u8aaa\u660e\u5716\u8868\uff0c\u4e5f\u53ef\u4ee5\u5224\u65b7\u51fa\u653b\u64ca\u7684\u767c\u751f\u9806\u5e8f\u3002<\/p>\n\n\n\n

<\/div>\n\n\n\n

\u65b0\u7684\u8b66\u793a<\/h2>\n\n\n\n

<\/p>\n\n\n\n

EDR \u53ef\u8f15\u9b06\u7522\u751f\u65b0\u7684\u8b66\u793a\u4f86\u89f8\u767c\u8abf\u67e5\u7a0b\u5e8f\u3002\u91dd\u5c0d\u9019\u8d77\u653b\u64ca\u6848\u4f8b\uff0c\u6211\u5011\u53ef\u5728\u6bcf\u7576 services.exe \u555f\u52d5 cmd.exe \u4ee5\u53ca\u7576\u300c%comspec%\u300d\u9019\u4e32\u5b57\u88ab\u5beb\u5165\u958b\u6a5f\u81ea\u52d5\u555f\u52d5\u767b\u9304\u6a5f\u78bc\u6642\u7522\u751f\u65b0\u7684\u8b66\u793a\uff0c\u9019\u6a23\u5c31\u80fd\u5354\u52a9\u8cc7\u5b89\u5718\u968a\u8ffd\u8e64\u5f8c\u7e8c\u7684\u5a01\u8105\u3002<\/p>\n\n\n\n

<\/div>\n\n\n\n

\u8da8\u52e2\u79d1\u6280\u89e3\u6c7a\u65b9\u6848<\/h1>\n\n\n\n

 <\/p>\n\n\n\n

\u8a17\u7ba1\u5f0f\u5075\u6e2c\u53ca\u56de\u61c9\uff08MDR\uff09<\/a>\u5229\u7528\u5f37\u5927\u7684\u4eba\u5de5\u667a\u6167 (AI) \u8207\u8cc7\u5b89\u6578\u64da\u5206\u6790\u4f86\u4ea4\u53c9\u95dc\u806f\u8cc7\u6599\uff0c\u5728\u55ae\u4e00\u4e3b\u63a7\u53f0\u4e0a\u63d0\u4f9b\u6700\u4f73\u5316\u7684\u8b66\u793a\uff0c\u4fdd\u8b77\u74b0\u74b0\u76f8\u6263\u7684\u96fb\u5b50\u90f5\u4ef6\u3001\u7aef\u9ede\u3001\u4f3a\u670d\u5668\u3001\u96f2\u7aef\u5de5\u4f5c\u8ca0\u8f09\u4ee5\u53ca\u7db2\u8def\u3002\u85c9\u7531\u9019\u6a23\u7684\u6280\u8853\uff0c\u4f01\u696d\u5c31\u80fd\u5feb\u901f\u767c\u6398\u5a01\u8105\u4e26\u53ca\u6642\u964d\u4f4e\u5a01\u8105\u7684\u885d\u64ca\u3002<\/p>\n\n\n\n

\u8da8\u52e2\u79d1\u6280 Managed XDR<\/a>\u63d0\u4f9b\u5c08\u5bb6\u5a01\u8105\u76e3\u63a7\u8207\u4ea4\u53c9\u95dc\u806f\u53ca\u5206\u6790\uff0c\u7531\u7d93\u9a57\u8c50\u5bcc\u7684\u7db2\u8def\u8cc7\u5b89\u8001\u624b\u4f86\u63d0\u4f9b 7 \u5929 24 \u5c0f\u6642\u7684\u670d\u52d9\uff0c\u8b93\u4f01\u696d\u5f9e\u55ae\u4e00\u4f86\u6e90\u57f7\u884c\u5075\u6e2c\u3001\u5206\u6790\u53ca\u56de\u61c9\u3002\u6b64\u5916\uff0c\u9019\u9805\u670d\u52d9\u66f4\u6709\u7d50\u5408 AI \u8207\u8da8\u52e2\u79d1\u6280\u5168\u7403\u5a01\u8105\u60c5\u5831\u7684\u89e3\u6c7a\u65b9\u6848\u70ba\u5f8c\u76fe\u3002 <\/p>\n\n\n\n

\u539f\u6587\u51fa\u8655\uff1aAnalysis of a Convoluted Attack Chain Involving Ngrok<\/a> \u4f5c\u8005\uff1aAprilyn Borja\u3001Abraham Camba\u3001Khristoffer Jocson\u3001Ryan Maglaque\u3001Gilbert Sison \u8207 Jay Yaneza

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