{"id":908,"date":"2025-11-22T22:59:57","date_gmt":"2025-11-22T14:59:57","guid":{"rendered":"https:\/\/www.sanjiuctf.cn\/?p=908"},"modified":"2025-11-23T12:03:04","modified_gmt":"2025-11-23T04:03:04","slug":"ctf%e4%b8%admisc%e7%ae%80%e5%8d%95%e7%9a%84%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"https:\/\/www.sanjiuctf.cn\/?p=908","title":{"rendered":"CTF\u4e2dMISC\u7b80\u5355\u7684\u4ecb\u7ecd"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u58f0\u660e<\/h2>\n\n\n\n<p>\u8fd9\u4e2a\u53ea\u662f\u7b80\u5355\u7684\u4ecb\u7ecd\uff0c\u5199\u7684\u5982\u679c\u4e0d\u8981\u4e0d\u8981\u55b7\u6211,\u800c\u4e14\u91cc\u9762\u7684\u4f8b\u9898\u5f88\u7b80\u5355\u7684\uff0c\u53ea\u662f\u7b80\u5355\u7684\u6f14\u793a\uff0c\u56e0\u4e3a\u53ea\u662f\u7b80\u5355\u7684\u4ecb\u7ecd\uff0c\u4e0d\u4f1a\u5f04\u592a\u96be\u7684\u9898\uff0c\u800c\u4e14\u73b0\u5728\u7684MISC\u57fa\u672c\u5927\u90e8\u5206\u90fd\u662f\u6d41\u91cf\u5206\u6790\u548c\u53d6\u8bc1\u5206\u6790<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u524d\u8a00<\/h2>\n\n\n\n<p>MISC\u662fCTF\u7f51\u7edc\u5b89\u5168\u6bd4\u8d5b\u7684\u4e00\u4e2a\u5927\u7c7b\uff0c\u90a3\u4e48\u8981\u4e86\u89e3\u4ec0\u4e48\u662fMISC\u5c31\u8981\u77e5\u9053\u4ec0\u4e48\u662fCTF\uff1f<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ec0\u4e48\u662fCTF<\/h3>\n\n\n\n<p>CTF\uff08Capture The Flag\uff09\u4e00\u822c\u7ffb\u8bd1\u4e3a\u201c\u593a\u65d7\u201d\uff0c\u8d77\u6e90\u4e8e\u53e4\u4ee3\u7684\u6218\u4e89\uff0c\u540e\u6765\u9010\u6e10\u8f6c\u53d8\u4e3a\u6b27\u7f8e\u7684\u4e00\u79cd\u4f20\u7edf\u8fd0\u52a8\u3002\u5728\u7f51\u7edc\u5b89\u5168\u9886\u57df\u4e2d\u6307\u7684\u662f\u7f51\u7edc\u5b89\u5168\u6280\u672f\u4eba\u5458\u4e4b\u95f4\u8fdb\u884c\u6280\u672f\u7ade\u6280\u7684\u4e00\u79cd\u6bd4\u8d5b\u5f62\u5f0f\u3002\uff0c\u8d77\u6e90\u4e8e 1996 \u5e74 <strong>DEFCON<\/strong> \u5168\u7403\u9ed1\u5ba2\u5927\u4f1a\uff0c\u7f51\u7edc\u5b89\u5168\u4e2dCTF\u5df2\u7ecf\u6210\u4e3a\u4e00\u79cd\u91cd\u8981\u7684\u7ade\u8d5b\u5f62\u5f0f\u3002<\/p>\n\n\n\n<p>\u53c2\u8d5b\u9009\u624b\u901a\u8fc7\u5b8c\u6210\u653b\u51fb\u3001\u5206\u6790\uff0c\u89e3\u5bc6\u7b49\u5404\u7c7b\u64cd\u4f5c\uff0c\u7387\u5148\u4ece\u9898\u76ee\u7ed9\u51fa\u7684\u6c99\u7bb1\u73af\u5883\u6216\u6587\u4ef6\u6837\u672c\u4e2d\u5f97\u5230\u4e00\u4e32\u5177\u6709\u4e00\u5b9a\u683c\u5f0f\u7684\u5b57\u7b26\u4e32\u6216\u5176\u4ed6\u5185\u5bb9\uff0c\u5e76\u5c06\u5176\u63d0\u4ea4\u7ed9\u5e73\u53f0\uff0c\u4ece\u800c\u593a\u5f97\u5206\u6570\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u65b9\u4fbf\u79f0\u547c\uff0c\u6211\u4eec\u628a\u8fd9\u6837\u7684\u5185\u5bb9\u79f0\u4e4b\u4e3a&#8221;Flag&#8221;\u3002Flag\u7684\u4e00\u822c\u683c\u5f0f\u662f\u4e00\u4e2a\u7edf\u4e00\u7684\u5f00\u5934\u540d\u79f0\u52a0\u4e0a\u5927\u62ec\u53f7\u5185\u5bb9\uff0c\u4f8b\u5982 <strong>flag{hello_world}<\/strong>\u6216\u8005 CTF{hello_world}\u3002\u57fa\u672c\u4e0a\u7684\u683c\u5f0f<strong>xxx{ }<\/strong> \u8fd9\u4e2a\u5c31\u662f\u4f60\u89e3\u9898\u7684\u7b54\u6848<\/p>\n\n\n\n<p>CTF\u6bd4\u8d5b\u8bde\u751f\u81f3\u4eca\uff0c\u6bd4\u8d5b\u673a\u5236\u548c\u8ba1\u5206\u65b9\u5f0f\u7ecf\u5386\u4e86\u591a\u6b21\u53d8\u5316\uff0c\u76ee\u524d\u5e38\u89c1\u7684\u8d5b\u5236\u5305\u62ec\u89e3\u9898\u6a21\u5f0f\u3001\u653b\u9632\u6a21\u5f0f\u3001\u767b\u9876\u5236\u3001AWDplus\u3001RHG\u548c\u573a\u666f\u6a21\u62df\u8d5b\u7b49\u3002<\/p>\n\n\n\n<p>CTF\u6bd4\u8d5b\u7c7b\u578b\u7684\u5206\u7c7b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>1.\u5b89\u5168\u6742\u9879\uff08\u9690\u5199\uff09\n2.\u5bc6\u7801\u5b66\n3.Web\u6e17\u900f\n4.\u8f6f\u4ef6\u9006\u5411\u5de5\u7a0b\n5.\u4e8c\u8fdb\u5236\u7a0b\u5e8f\u6f0f\u6d1e\u5229\u7528\uff08PWN\uff09\n6.\u5de5\u4e1a\u63a7\u5236\n7.\u7535\u5b50\u53d6\u8bc1<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u56fd\u5185\u5916CTF\u6bd4\u8d5b<\/h3>\n\n\n\n<p>DEFCON CTF(CTF\u754c\u7684&#8221;\u4e16\u754c\u676f&#8221;)\u3001Google CTF(\u8c37\u6b4c)\u3001WCTF(360)\u3001TCTF(\u817e\u8baf)\u3001\u7f51\u9f0e\u676f\u3001\u5f3a\u7f51\u676f\u3001\u6781\u5ba2\u5dc5\u5cf0\u3001\u897f\u6e56\u8bba\u5251(\u9a6c\u4e91)\u3001\u9647\u5251\u676f\u3001XCTF\u8054\u8d5b\uff0c\u957f\u57ce\u676f\u3001\u8fd8\u6709\u4e9b\u7701\u7ea7\u5355\u4f4d\u7684\u6bd4\u8d5b\uff0c\u5fa1\u7f51\u676f\u3001\u6e56\u6e58\u676f\u3001\u6e7e\u533a\u676f\u7b49\u7b49<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ec0\u4e48\u662fMISC<\/h3>\n\n\n\n<p>Misc \u662f\u82f1\u6587 Miscellaneous \u7684\u524d\u56db\u4e2a\u5b57\u6bcd\uff0c\u6742\u9879\u3001\u6df7\u5408\u4f53\u3001\u5927\u6742\u70e9\u7684\u610f\u601d\u3002<\/p>\n\n\n\n<p>Misc \u5728\u56fd\u5916\u7684\u6bd4\u8d5b\u4e2d\u5176\u5b9e\u53c8\u88ab\u5177\u4f53\u5212\u5206\u4e3a\u5404\u4e2a\u5c0f\u5757\uff0c\u6709<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Recon<\/li>\n\n\n\n<li>Forensic<\/li>\n\n\n\n<li>Stego<\/li>\n\n\n\n<li>Misc<\/li>\n\n\n\n<li>\u2026\u2026<\/li>\n<\/ul>\n\n\n\n<p>\u5728\u56fd\u5185\u7684\u6bd4\u8d5b\u4e2d\uff0c\u88ab\u7edf\u4e00\u5212\u5206\u5165 Misc \u9886\u57df\uff0c\u6709\u4e9b Crypto\uff08\u5c24\u5176\u662f\u53e4\u5178\u5bc6\u7801\uff09\u4e5f\u88ab\u5212\u5165\u5176\u4e2d\uff0c\u4f46\u662f\u57fa\u672c\u4e0a\u5c31\u662f\u8fde\u5e26\uff0c\u6bd4\u8f83\u7b80\u5355<\/p>\n\n\n\n<p>\u5728CTF\u6bd4\u8d5b\u7684\u9898\u76ee\u4e2d\uff0c\u6709\u76f8\u5f53\u4e00\u90e8\u5206\u9898\u76ee\u5c5e\u4e8e\u5b89\u5168\u6742\u9879\u7c7b\uff0c\u8fd9\u7c7b\u9898\u76ee\u4e5f\u79f0\u4e3aMISC\uff08\u8fd9\u4e2a\u7b80\u79f0\u53d6\u81ea\u5355\u8bcdMiscellaneous\u7684\u524d\u56db\u4e2a\u5b57\u6bcd\uff0c<br>Miscellaneous\u6709\u6df7\u5408\u4f53\u3001\u5927\u6742\u70e9\u7684\u610f\u601d\uff09\u3002\u4ece\u5e7f\u4e49\u4e0a\u8bf4\uff0c\u9664\u4e86Web\u6e17\u900f\u3001\u8f6f\u4ef6\u9006\u5411\u5206\u6790\u3001\u5bc6\u7801\u5b66\u4ee5\u53ca\u4e8c\u8fdb\u5236\u7a0b\u5e8f\u6f0f\u6d1e\u5229\u7528\u7684\u9898\u76ee\uff0c\u5176\u4f59\u9898\u76ee\u90fd\u53ef\u4ee5\u5f52\u5165\u5b89\u5168\u6742\u9879\u7c7b\u3002\u5b89\u5168\u6742\u9879\u7c7b\u9898\u76ee\u6d89\u53ca\u5e7f\u6cdb\uff0c\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\uff1a<br>\u2751\u4fe1\u606f\u641c\u96c6<br>\u2751\u7f16\u7801\u5206\u6790<br>\u2751\u9690\u5199<br>\u2751\u7f51\u7edc\u6d41\u91cf\u5206\u6790<br>\u2751\u65e5\u5fd7\u5206\u6790<br>\u2751\u7535\u5b50\u53d6\u8bc1<\/p>\n\n\n\n<p>\u6211\u4eec\u5c31\u7b80\u5355\u4ecb\u7ecd\u8fd9\u4e9b\u9898\u548c\u4ed6\u7684\u5206\u7c7b\uff0c\u8bf4\u660e\uff1a\u9898\u76ee\u9776\u573a\u662f\u4e2a\u4eba\u642d\u7684<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00.\u4fe1\u606f\u6536\u96c6<\/h2>\n\n\n\n<p>\u4fe1\u606f\u641c\u96c6\uff0c\u5c31\u662f\u8003\u4f60\u4fe1\u606f\u641c\u96c6\u7684\u80fd\u529b\uff0c\u5728web\u4e2d\u4fe1\u606f\u641c\u96c6\u662f\u4e0d\u5fc5\u53ef\u5c11\u7684\u6d41\u7a0b\u7aef\u53e3\u626b\u63cf\u3001\u76ee\u5f55\u626b\u63cf\u3001\u6307\u7eb9\u8bc6\u522b\u3002\u5728MISC\u4e2d\u7684\u4fe1\u606f\u6536\u96c6\u5206\u4e3a\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5f00\u6e90\u60c5\u62a5\u83b7\u53d6 OSINT<\/h3>\n\n\n\n<p><strong>\u300c\u5f00\u6e90\u7f51\u7edc\u60c5\u62a5 Open source intelligence,OSINT\u300d<\/strong> \uff0c\u662f\u4e00\u79cd\u60c5\u62a5\u641c\u96c6\u624b\u6bb5\uff0c\u4ece\u5404\u79cd\u516c\u5f00\u7684\u4fe1\u606f\u8d44\u6e90\u4e2d\u5bfb\u627e\u548c\u83b7\u53d6\u6709\u4ef7\u503c\u7684\u60c5\u62a5\u3002<\/p>\n\n\n\n<p>\u5728\u56fd\u5185\uff0c\u5927\u5bb6\u4e5f\u559c\u6b22\u79f0\u8fd9\u7c7b\u9898\u76ee\u4e3a &#8220;<strong>\u793e\u5de5\u9898<\/strong>&#8221; \uff0c\u8fd9\u7c7b\u9898\u76ee\u901a\u5e38\u4ee5 \u5404\u7c7b\u6807\u5fd7\u6027\u5efa\u7b51\uff0c\u8857\u666f\uff0c\u884c\u7a0b\u4fe1\u606f\u7b49\u5185\u5bb9\u7684 <strong>\u56fe\u7247<\/strong> \u4f5c\u4e3a\u9898\u76ee\uff0c\u9009\u624b\u9700\u8981\u4ece\u6709\u9650\u4fe1\u606f\u4e2d\u4e0d\u65ad\u68c0\u7d22\u4fee\u8865\u4fe1\u606f\u5dee\uff0c\u5bfb\u627e\u7ec6\u8282\u7a81\u7834\u70b9\uff0c\u4f9d\u6b21\u6765\u83b7\u5f97\u9898\u76ee\u8981\u6c42\u7684\u4fe1\u606f \u2014\u2014 \u62cd\u6444\u5730\u70b9\uff0c\u62cd\u6444\u4eba\u7684\u4e00\u4e9b\u8eab\u4efd\u4fe1\u606f\u7b49\u3002OSINT \u9898\u76ee\u662f\u6bd4\u8f83\u5403\u7ecf\u9a8c\u548c\u6280\u5de7\u7684<\/p>\n\n\n\n<p><strong>\u6d41\u7a0b\uff1a<\/strong><\/p>\n\n\n\n<p><strong>\u56fe\u7247\u5b9a\u4f4d<\/strong><\/p>\n\n\n\n<p>\u5bf9\u4e8e\u4ec5\u7ed9\u5b9a\u56fe\u7247\u7684 OSINT \u9898\u76ee\uff0c\u901a\u5e38\u4ece\u56fe\u7247\u672c\u8eab\u548c\u56fe\u7247\u5185\u5bb9\u5165\u624b\u3002<\/p>\n\n\n\n<p><strong>\u56fe\u7247\u6587\u4ef6\u4fe1\u606f<\/strong><\/p>\n\n\n\n<p>\u4e00\u4e9b\u56fe\u7247\u7684 EXIF \u4fe1\u606f\u4e2d\u53ef\u80fd\u542b\u6709\u62cd\u6444\u7684\u7ecf\u7eac\u5ea6\uff0c\u89d2\u5ea6\uff0c\u8bbe\u5907\u578b\u53f7\u7b49\u4fe1\u606f\uff0c\u901a\u8fc7\u56fe\u7247 \u7ecf\u7eac\u5ea6 + \u56fe\u7247\u5185\u5bb9 \u8fdb\u884c\u8bef\u5dee\u4fee\u6b63\u7684 OSINT \u9898\u76ee\u4e5f\u7b97\u662f\u7b80\u5355\u9898\u76ee\u4e2d\u7684\u5e38\u5ba2\u3002<\/p>\n\n\n\n<p><strong>\u8857\u666f<\/strong><\/p>\n\n\n\n<p>\u8857\u666f\u7684\u7ef4\u5ea6\u5f88\u5e7f\uff0c\u7b14\u8005\u5728\u6b64\u5c3d\u91cf\u5217\u4e3e\uff0c\u4f46\u4e0d\u80fd\u4fdd\u8bc1\u5b8c\u5168\u5305\u542b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5efa\u7b51\u98ce\u683c<\/li>\n\n\n\n<li>\u4ece\u662f\u5426\u6709\u5730\u6807\u6027\u6216\u8005\u5176\u4ed6\u6807\u5fd7\u6027\u5efa\u7b51<\/li>\n\n\n\n<li>\u663e\u773c\u7684\u5e97\u94fa\u540d\u79f0<\/li>\n\n\n\n<li>\u5404\u79cd\u8def\u724c \u6307\u793a\u724c<\/li>\n\n\n\n<li>\u56f4\u680f\u7279\u5f81<\/li>\n\n\n\n<li>\u8f66\u724c<\/li>\n\n\n\n<li>\u884c\u4eba\u670d\u9970\u7279\u70b9<\/li>\n<\/ul>\n\n\n\n<p>&#8230;&#8230;<\/p>\n\n\n\n<p><strong>\u4ea4\u901a\u8981\u5730<\/strong><\/p>\n\n\n\n<p>\u5982 \u706b\u8f66\u7ad9\uff0c\u5730\u94c1\u7ad9\uff0c\u673a\u573a\uff0c\u7801\u5934\u7b49\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5e03\u5c40<\/li>\n\n\n\n<li>\u5404\u7c7b\u63d0\u793a\u6027\u6587\u5b57 \u6307\u793a\u724c<\/li>\n\n\n\n<li>\u4ea4\u9898\u5de5\u5177\u662f\u5426\u51fa\u955c \u2014\u2014 \u5916\u5f62 \u5177\u4f53\u578b\u53f7<\/li>\n<\/ul>\n\n\n\n<p><strong>\u884c\u7a0b\u4fe1\u606f<\/strong><\/p>\n\n\n\n<p>\u5982 \u5404\u7c7b\u8f66\u7968 \/ \u673a\u7968 \uff0c\u5df2\u5bf9\u90e8\u5206\u8981\u7d20\u6253\u7801\uff0c\u4f46\u4f9d\u65e7\u80fd\u83b7\u53d6\u5230\u5176\u4ed6\u5982 \u65f6\u95f4\u7b49\u6709\u6548\u8981\u7d20\u7684\u56fe\u7247\u3002<\/p>\n\n\n\n<p>\u7b49\u7b49&#8230;&#8230;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5982\u4f55\u641c\u7d22\u5462\uff1f<\/h3>\n\n\n\n<p><strong>\u7f51\u7edc\u4fe1\u606f\u641c\u96c6\u6280\u5de7<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u516c\u5f00\u6e20\u9053<\/li>\n\n\n\n<li>\u76ee\u6807 Web \u7f51\u9875\u3001\u5730\u7406\u4f4d\u7f6e\u3001\u76f8\u5173\u7ec4\u7ec7<\/li>\n\n\n\n<li>\u7ec4\u7ec7\u7ed3\u6784\u548c\u4eba\u5458\u3001\u4e2a\u4eba\u8d44\u6599\u3001\u7535\u8bdd\u3001\u7535\u5b50\u90ae\u4ef6<\/li>\n\n\n\n<li>\u7f51\u7edc\u914d\u7f6e\u3001\u5b89\u5168\u9632\u62a4\u673a\u5236\u7684\u7b56\u7565\u548c\u6280\u672f\u7ec6\u8282<\/li>\n\n\n\n<li>\u901a\u8fc7\u641c\u7d22\u5f15\u64ce\u67e5\u627e\u7279\u5b9a\u5b89\u5168\u6f0f\u6d1e\u6216\u79c1\u5bc6\u4fe1\u606f\u7684\u65b9\u6cd5<\/li>\n\n\n\n<li><a href=\"https:\/\/www.exploit-db.com\/google-hacking-database\/\">Google Hacking Database<\/a><\/li>\n\n\n\n<li>\u79d1\u5b66\u4e0a\u7f51<\/li>\n<\/ul>\n\n\n\n<p><strong>\u57fa\u672c\u641c\u7d22\u6280\u5de7<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Google \u57fa\u672c\u641c\u7d22\u4e0e\u6316\u6398\u6280\u5de7<\/li>\n\n\n\n<li>\u4fdd\u6301\u7b80\u5355\u660e\u4e86\u7684\u5173\u952e\u8bcd<\/li>\n\n\n\n<li>\u4f7f\u7528\u6700\u53ef\u80fd\u51fa\u73b0\u5728\u8981\u67e5\u627e\u7684\u7f51\u9875\u4e0a\u7684\u5b57\u8bcd<\/li>\n\n\n\n<li>\u5c3d\u91cf\u7b80\u660e\u627c\u8981\u5730\u63cf\u8ff0\u8981\u67e5\u627e\u7684\u5185\u5bb9<\/li>\n\n\n\n<li>\u9009\u62e9\u72ec\u7279\u6027\u7684\u63cf\u8ff0\u5b57\u8bcd<\/li>\n\n\n\n<li>\u793e\u4f1a\u516c\u5171\u4fe1\u606f\u5e93\u67e5\u8be2<\/li>\n\n\n\n<li>\u4e2a\u4eba\u4fe1\u606f\uff1a\u4eba\u53e3\u7edf\u8ba1\u5c40<\/li>\n\n\n\n<li>\u4f01\u4e1a\u7b49\u5b9e\u4f53\uff1aYellowPage\u3001\u4f01\u4e1a\u4fe1\u7528\u4fe1\u606f\u7f51<\/li>\n\n\n\n<li>\u7f51\u7ad9\u3001\u57df\u540d\u3001IP\uff1awhois \u7b49<\/li>\n<\/ul>\n\n\n\n<p><strong>\u5730\u56fe\u548c\u8857\u666f\u641c\u7d22<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u56fd\u5916\uff1aGoogle Map\u3001Google Earth\u3001Google Street View<\/li>\n\n\n\n<li>\u56fd\u5185\uff1a\u767e\u5ea6\u5730\u56fe\u3001\u536b\u661f\u5730\u56fe\u3001\u8857\u666f<\/li>\n\n\n\n<li>\u4ece\u7f51\u7edc\u4e16\u754c\u5230\u7269\u7406\u4e16\u754c\uff1aIP2Location<\/li>\n\n\n\n<li>whois \u6570\u636e\u5e93<\/li>\n\n\n\n<li>GeoIP<\/li>\n\n\n\n<li>IP2Location<\/li>\n\n\n\n<li>\u7eaf\u771f\u6570\u636e\u5e93\uff08QQ IP \u67e5\u8be2\uff09<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f8b\u9898\uff1a<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-581.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"794\" height=\"283\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-581.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-909\"  sizes=\"auto, (max-width: 794px) 100vw, 794px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-582-1024x768.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-582-1024x768.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-910\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>\u5176\u5b9e\u4e00\u770b\u5c31\u77e5\u9053\u662f\u65e5\u672c\u7684\uff0c\u4f46\u662f\u6211\u4eec\u4e0d\u77e5\u9053\u5177\u4f53\u662f\u54ea\u91cc<\/p>\n\n\n\n<p>\u90a3\u4e48\u5c31\u8981\u8bc6\u56fe\uff0c\u767e\u5ea6\u8bc6\u56fe\u3001\u8c37\u6b4c\u8bc6\u56fe\u7b49\u7b49\uff0c\u57fa\u672c\u4e0a\u5c31\u662f\u5148\u56fd\u5185\u8fdb\u884c\u67e5\u627e\uff0c\u6700\u540e\u7136\u540e\u518d\u7528VPN\u53bb\u8c37\u6b4c\u641c\u7d22\u67e5\u627e<\/p>\n\n\n\n<p>\u90a3\u4e48\u6211\u5c31\u5148\u76f4\u63a5\u767e\u5ea6\u8bc6\u56fe<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-583.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"635\" height=\"243\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-583.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-911\"  sizes=\"auto, (max-width: 635px) 100vw, 635px\" \/><\/div><\/figure>\n\n\n\n<p>\u8fd9\u6837\u6211\u4eec\u5c31\u627e\u5230\u4e86\u7b54\u6848<\/p>\n\n\n\n<p>\u6839\u636e\u683c\u5f0f\uff1a flag{\u79cb\u53f6\u539f}<\/p>\n\n\n\n<p>\u8fd9\u7bc7\u6587\u7ae0\uff0c\u53ea\u662f\u7b80\u5355\u4ecb\u7ecdMISC\u7684\uff0c\u4e86\u89e3MISC\u548cCTF\uff0c\u4f8b\u9898\u4e0d\u4f1a\u592a\u96be\uff0c\u50cf\u6709\u4e9b\u6bd4\u8f83\u96be\u5ea6\u7684\u4fe1\u606f\u641c\u96c6\u7684MISC\u9898\uff0c\u5f3a\u7f51\u676f\u5c31\u6709\u7ecf\u7eac\u7f51\u548c\u5750\u6807\u7684\u5224\u65ad<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c.\u7f16\u7801\u5206\u6790<\/h2>\n\n\n\n<p>\u5728CTF\u6bd4\u8d5b\u4e2d\uff0c\u5e38\u5e38\u91c7\u7528\u7f16\u7801\u5206\u6790\u6216\u8005\u7b80\u5355\u7684\u5bc6\u7801\u9898\u76ee\u4f5c\u4e3a\u201c\u7b7e\u5230\u9898\u201d\u3002\u901a\u8fc7\u8bbe\u7f6e\u7b7e\u5230\u9898\uff0c\u53ef\u4ee5\u8ba9\u53c2\u8d5b\u961f\u4f0d\u719f\u6089flag\u683c\u5f0f\uff0c\u589e\u5f3a\u9009\u624b\u7684\u53c2\u4e0e\u611f\u3002\u800c\u4e14\uff0c\u51e0\u4e4e\u6240\u6709\u961f\u4f0d\u90fd\u53ef\u4ee5\u89e3\u51fa\u7b7e\u5230\u9898\uff0c\u4ece\u800c\u907f\u514d\u96f6\u5206\u7684\u51fa\u73b0\u3002\u867d\u7136\u8fd9\u7c7b\u9898\u76ee\u6bd4\u8f83\u7b80\u5355\uff0c\u4f46\u5982\u679c\u57fa\u7840\u77e5\u8bc6\u638c\u63e1\u5f97\u4e0d\u7262\u56fa\uff0c\u4e5f\u4e0d\u5bb9\u6613\u5feb\u901f\u89e3\u51fa\u3002\u5e38\u89c1\u7684\u7f16\u7801\u662f\u7f51\u7edc\u5b89\u5168\u7684\u57fa\u7840\u77e5\u8bc6\u3002<\/p>\n\n\n\n<p>\u7f16\u7801\u7684\u5206\u7c7b\u8fd9\u91cc\u5c31\u4e0d\u8fc7\u591a\u4ecb\u7ecd\u4e86\u539f\u7406\u7b49\u7b49<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u901a\u4fe1\u9886\u57df\u5e38\u7528\u7f16\u7801<\/h3>\n\n\n\n<p>\u7535\u8bdd\u62e8\u53f7\u7f16\u7801\uff08DTMF\uff09 \u3001Morse \u7f16\u7801\u3001\u6572\u51fb\u7801\u3001\u66fc\u5f7b\u65af\u7279\u7f16\u7801\u3001\u683c\u96f7\u7f16\u7801\u7b49<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8ba1\u7b97\u673a\u76f8\u5173\u7684\u7f16\u7801<\/h3>\n\n\n\n<p>ASCII \u7f16\u7801\u3001binary(\u4e8c\u8fdb\u5236\u7f16\u7801)\u3001decimal(\u5341\u8fdb\u5236DEC)\u3001Octal(\u516b\u8fdb\u5236OCT)\u3001Hex\u7f16\u7801(\u5341\u516d\u8fdb\u5236Hexadecimal)\u3001Base \u7f16\u7801\u3001\u970d\u592b\u66fc\u7f16\u7801\u3001URL \u7f16\u7801\u3001Unicode \u7f16\u7801\u3001HTML \u7f16\u7801\u3001JSFuck\u7f16\u7801 \u7b49\u7b49\u8fd9\u53ea\u662f\u8bf4\u7684\u5f88\u5c11\u4e00\u90e8\u5206<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u73b0\u5b9e\u4e16\u754c\u4e2d\u5e38\u7528\u7684\u7f16\u7801<\/h3>\n\n\n\n<p>\u6761\u5f62\u7801\u3001\u4e8c\u7ef4\u7801<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f8b\u9898\uff1a<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-584.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"781\" height=\"235\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-584.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-912\"  sizes=\"auto, (max-width: 781px) 100vw, 781px\" \/><\/div><\/figure>\n\n\n\n<pre class=\"wp-block-code\"><code>\ud83d\udc5d\ud83d\udc63\ud83d\udc58\ud83d\udc5e\ud83d\udc72\ud83d\udc5c\ud83d\udc64\ud83d\udc66\ud83d\udc6b\ud83d\udc28\ud83d\udc66\ud83d\udc65\ud83d\udc56\ud83d\udc60\ud83d\udc6a\ud83d\udc56\ud83d\udc5c\ud83d\udc6a\ud83d\udc6a\ud83d\udc5c\ud83d\udc65\ud83d\udc6b\ud83d\udc60\ud83d\udc58\ud83d\udc63\ud83d\udc74<\/code><\/pre>\n\n\n\n<p>\u6709\u6ca1\u6709\u611f\u89c9\u5f88\u5947\u602a\uff0c\u5176\u5b9e\u8fd9\u4e2a\u5c31\u662f\u4e00\u4e2a\u7f16\u7801\uff0c\u7b7e\u5230\u9898\u76ee<\/p>\n\n\n\n<p>base100\u89e3\u7801\u6216\u8005Emoji\u89e3\u7801\u90fd\u53ef\u4ee5<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-585.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"441\" height=\"30\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-585.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-913\"  sizes=\"auto, (max-width: 441px) 100vw, 441px\" \/><\/div><\/figure>\n\n\n\n<p>flag{emot1on_is_essential}<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09.\u9690\u5199\u672f<\/h2>\n\n\n\n<p>\u9690\u5199\u672f\uff08Steganography\uff0c\u7b80\u79f0Steg\u6216Stega\uff09\u4e00\u8bcd\u6765\u6e90\u4e8e\u7ea6\u7ff0\u5c3c\u65af\u00b7\u7279\u91cc\u7279\u7c73\u4e4c\u65af\uff08Johannes Trithemius\uff09\u7684\u8457\u4f5cSteganographia\uff0c\u5982\u56fe\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-586-733x1024.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"733\" height=\"1024\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-586-733x1024.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-914\"  sizes=\"auto, (max-width: 733px) 100vw, 733px\" \/><\/div><\/figure>\n\n\n\n<p>\u8be5\u4e66\u7684\u4e66\u540d\u6e90\u4e8e\u5e0c\u814a\u8bed\uff0c\u610f\u4e3a\u201c\u9690\u79d8\u4e66\u5199\u201d\u3002\u8be5\u4e66\u6210\u4e66\u4e8e1499\u5e74\u5de6\u53f3\uff0c\u4f46\u88ab\u6c61\u540d\u5316\u4e3a\u201c\u9ed1\u9b54\u6cd5\u201d\u3002\u4e3a\u6b64\uff0c\u7279\u91cc\u7279\u7c73\u4e4c\u65af\u4e0d\u5f97\u4e0d\u4ece\u65af\u84ec\u6d77\u59c6\uff08Sponheim\uff09\u7684\u672c\u7b03\u4f1a\u4fee\u9053\u9662\u8f9e\u804c\uff0c\u5728\u7ef4\u5c14\u8328\u5821\u7684Schottenkloster\u4fee\u9053\u9662\u5ea6\u8fc7\u4f59\u751f\u3002\u5728\u8499\u53d7\u4e86\u767e\u4f59\u5e74\u7684\u4e0d\u767d\u4e4b\u51a4\u540e\uff0c1606\u5e74\u91cd\u4fee\u672c\u7b03\u4f1a\u4fee\u9053\u9662\u65f6\uff0c\u624d\u53d1\u73b0\u4e86\u4ed6\u7684\u9690\u5199\u672f\u4e09\u90e8\u66f2\uff0c\u5e76\u5c06\u5176\u5728\u6cd5\u5170\u514b\u798f\u51fa\u7248\u3002\u8be5\u4e66\u770b\u4e0a\u53bb\u662f\u6709\u5173\u9ed1\u9b54\u6cd5\u7684\uff0c\u4f46\u5b9e\u9645\u4e0a\u4ecb\u7ecd\u7684\u662f\u5bc6\u7801\u5b66\u4e0e\u4fe1\u606f\u9690\u85cf\uff0c\u5982\u56fe\u6240\u793a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-587-1024x752.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"752\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-587-1024x752.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-915\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" 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class=\"wp-block-heading\">\u56fe\u7247\u9690\u5199<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>1.\u5404\u79cd\u56fe\u7247\u6587\u4ef6\u7684\u5934\u6570\u636e\u4ee5\u53ca\u5224\u65ad\u662f\u4ec0\u4e48\u7c7b\u578b\u7684\u56fe\u7247\n2.png\u56fe\u7247\u9690\u5199\n3.jpg\u56fe\u7247\u9690\u5199\n4.gif\u56fe\u7247\u9690\u5199\n5.bmp\u56fe\u7247\u9690\u5199\n6.\u4ece\u56fe\u7247\u4e2d\u63d0\u53d6\u6587\u4ef6\n7.lsb\u9690\u5199\n8.\u76f2\u6c34\u5370\n9.exif\u9690\u5199\n10.\u56fe\u7247\u5bbd\u9ad8\u4fee\u6539\n.........<\/code><\/pre>\n\n\n\n<p><strong>DWT\u7684\u56fe\u50cf\u9690\u5199\u6280\u672f<\/strong><\/p>\n\n\n\n<p>\u56fe\u50cf\u9690\u5199\u672f\u7684\u4e3b\u8981\u6311\u6218\u662f\u63a9\u76d6\u56fe\u50cf\u7684\u4e0d\u53ef\u611f\u77e5\u6027\u548c\u79d8\u5bc6\u6570\u636e\u7684\u4e0d\u53ef\u6062\u590d\u6027\u3002\u4e3a\u4e86\u5e94\u5bf9\u8fd9\u4e9b\u6311\u6218\uff0c\u63d0\u51fa\u4e86\u4e00\u79cd\u57fa\u4e8e\u79bb\u6563\u5c0f\u6ce2\u53d8\u6362\uff08DWT\uff09\u7684\u6539\u8fdb\u7684\u6570\u5b57\u56fe\u50cf\u9690\u5199\u6280\u672f\u3002\u5728\u63d0\u51fa\u7684\u65b9\u6cd5\u4e2d\uff0c\u63d0\u51fa\u4e86\u4e24\u4e2a\u65b0\u7684\u6982\u5ff5\u4ee5\u6700\u5c0f\u5316\u5c01\u9762\u56fe\u50cf\u4e2d\u7684\u5931\u771f\u3002\u63d0\u51fa\u4e86\u7b2c\u4e00\u4e2a\uff0c\u5373\u79d8\u5bc6\u5bc6\u94a5\u8ba1\u7b97\u6982\u5ff5\uff0c\u4ee5\u4f7f\u5176\u66f4\u5065\u58ee\u548c\u66f4\u80fd\u62b5\u6297\u9690\u5199\u5206\u6790\u3002\u5f15\u5165\u7b2c\u4e8c\u79cd\u65b9\u6cd5\uff0c\u79f0\u4e3a\u906e\u6321\u6982\u5ff5\uff0c\u4ee5\u786e\u4fdd\u5c01\u9762\u56fe\u50cf\u7684\u53d8\u5316\u6700\u5c0f\u3002\u5728\u5341\u4e2a\u4e0d\u540c\u7684\u5c01\u9762\u56fe\u50cf\u548c\u4e24\u4e2a\u79d8\u5bc6\u56fe\u50cf\u4e0a\u6d4b\u8bd5\u4e86\u8be5\u65b9\u6cd5\u3002\u5c06\u5176\u6027\u80fd\u4e0e\u516d\u79cd\u8457\u540d\u7684\u9690\u5199\u6280\u672f\u8fdb\u884c\u6bd4\u8f83\u3002\u5b9e\u9a8c\u7ed3\u679c\u8868\u660e\uff0c\u5728\u611f\u77e5\uff0c\u5b89\u5168\u6027\u548c\u8d28\u91cf\u63aa\u65bd\u65b9\u9762\uff0c\u8be5\u65b9\u6cd5\u7684\u6027\u80fd\u4f18\u4e8e\u73b0\u6709\u6280\u672f\u3002\u8fd9\u516d\u79cd\u56fe\u50cf\u5904\u7406\u653b\u51fb\u8fd8\u5e94\u7528\u4e8e\u9690\u8eab\u56fe\u50cf\uff0c\u4ee5\u6d4b\u8bd5\u6240\u63d0\u51fa\u65b9\u6cd5\u7684\u9c81\u68d2\u6027\u3002\u538b\u7f29\uff0c\u65cb\u8f6c\u548c\u4e0d\u540c\u5c0f\u6ce2\u5e94\u7528\u7684\u5f71\u54cd\u4e5f\u5df2\u7ecf\u5728\u63d0\u51fa\u7684\u65b9\u6cd5\u4e0a\u8fdb\u884c\u4e86\u7814\u7a76\u3002\u7ed3\u679c\u8bc1\u660e\u4e86\u8be5\u65b9\u6cd5\u5728\u4e0d\u540c\u56fe\u50cf\u5904\u7406\u653b\u51fb\u4e0b\u7684\u9c81\u68d2\u6027\u3002\u9690\u79d8\u56fe\u50cf\u548c\u63d0\u53d6\u7684\u79d8\u5bc6\u56fe\u50cf\u90fd\u5177\u6709\u66f4\u597d\u7684\u89c6\u89c9\u8d28\u91cf\u3002\u63d0\u51fa\u7684\u65b9\u6cd5\u8fd8\u7814\u7a76\u4e86\u4e0d\u540c\u5c0f\u6ce2\u7684\u5e94\u7528\u3002\u7ed3\u679c\u8bc1\u660e\u4e86\u8be5\u65b9\u6cd5\u5728\u4e0d\u540c\u56fe\u50cf\u5904\u7406\u653b\u51fb\u4e0b\u7684\u9c81\u68d2\u6027\u3002\u9690\u79d8\u56fe\u50cf\u548c\u63d0\u53d6\u7684\u79d8\u5bc6\u56fe\u50cf\u90fd\u5177\u6709\u66f4\u597d\u7684\u89c6\u89c9\u8d28\u91cf\u3002\u63d0\u51fa\u7684\u65b9\u6cd5\u8fd8\u7814\u7a76\u4e86\u4e0d\u540c\u5c0f\u6ce2\u7684\u5e94\u7528\u3002\u7ed3\u679c\u8bc1\u660e\u4e86\u8be5\u65b9\u6cd5\u5728\u4e0d\u540c\u56fe\u50cf\u5904\u7406\u653b\u51fb\u4e0b\u7684\u9c81\u68d2\u6027\u3002\u9690\u79d8\u56fe\u50cf\u548c\u63d0\u53d6\u7684\u79d8\u5bc6\u56fe\u50cf\u90fd\u5177\u6709\u66f4\u597d\u7684\u89c6\u89c9\u8d28\u91cf\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u89c6\u9891\u9690\u5199<\/h3>\n\n\n\n<p>\u89c6\u9891\u9690\u5199\u7c7b\u9898\u76ee\u5728CTF\u6bd4\u8d5b\u4e2d\u9010\u5e74\u589e\u52a0\uff0c\u662f\u9690\u5199\u9898\u76ee\u8003\u67e5\u7684\u4e00\u4e2a\u65b0\u65b9\u5411\u3002\u89c6\u9891\u53ef\u4ee5\u770b\u4f5c\u56fe\u50cf\u548c\u97f3\u9891\u7684\u7efc\u5408\uff0c\u56e0\u6b64\u53ea\u8981\u80fd\u4ece\u89c6\u9891\u4e2d\u5c06\u56fe\u50cf\u548c<br>\u97f3\u9891\u5206\u79bb\u51fa\u6765\uff0c\u5c31\u53ef\u4ee5\u6309\u7167\u56fe\u50cf\u9690\u5199\u548c\u97f3\u9891\u9690\u5199\u7684\u65b9\u6cd5\u8fdb\u884c\u6df1\u5165\u5206\u6790\u3002\u5e38\u89c1\u7684\u89c6\u9891\u683c\u5f0f\u5305\u62ecavi\u3001mov\u3001rmvb\u3001mp4\u7b49\uff0cFlash\u52a8\u753b\u4e5f\u53ef\u4ee5<br>\u770b\u4f5c\u89c6\u9891\u9690\u5199\u7684\u4e00\u79cd\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6587\u672c\u9690\u5199<\/h3>\n\n\n\n<p>\u57fa\u4e8e\u6587\u672c\u5185\u5bb9\u7684\u9690\u5199\u3001\u57fa\u4e8eWord\u6587\u6863\u7684\u9690\u5199\u3001\u57fa\u4e8ePDF\u6587\u6863\u7684\u9690\u5199\u3001\u4e8c\u7ef4\u7801<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u97f3\u9891\u9690\u5199<\/h3>\n\n\n\n<p>\u62e8\u53f7\u97f3\u8bc6\u522b\u3001MP3\u6587\u4ef6\u9690\u5199\u3001\u97f3\u9891LSB\u9690\u5199\u3001\u57fa\u4e8e\u9891\u8c31\u56fe\u7684\u9690\u5199\u3001\u57fa\u4e8e\u6ce2\u5f62\u56fe\u7684\u9690\u5199<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f8b\u98981\uff1a<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-588.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"776\" height=\"295\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-588.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-917\"  sizes=\"auto, (max-width: 776px) 100vw, 776px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-589.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"626\" height=\"410\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-589.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-918\"  sizes=\"auto, (max-width: 626px) 100vw, 626px\" \/><\/div><\/figure>\n\n\n\n<p>\u662f\u4e2a\u56fe\u7247<\/p>\n\n\n\n<p>\u8fd9\u662f\u4e2aLSB\u9690\u5199\u7684\u9898\u76ee\u5728RGB\u901a\u9053<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-590.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"840\" height=\"286\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-590.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-920\"  sizes=\"auto, (max-width: 840px) 100vw, 840px\" \/><\/div><\/figure>\n\n\n\n<pre class=\"wp-block-code\"><code>ZmxhZ3tsNURHcUYxcFB6T2IyTFU5MTlMTWFCWVM1QjFHMDFGRH0=<\/code><\/pre>\n\n\n\n<p>base64\u89e3\u7801<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-591.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"540\" height=\"24\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-591.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-921\"  sizes=\"auto, (max-width: 540px) 100vw, 540px\" \/><\/div><\/figure>\n\n\n\n<p>flag{l5DGqF1pPzOb2LU919LMaBYS5B1G01FD}<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f8b\u98982\uff1a<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-592.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"775\" height=\"284\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-592.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-922\"  sizes=\"auto, (max-width: 775px) 100vw, 775px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-593.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"606\" height=\"435\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-593.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-923\"  sizes=\"auto, (max-width: 606px) 100vw, 606px\" \/><\/div><\/figure>\n\n\n\n<p>\u5f97\u5230\u4e00\u5f20\u56fe\u7247\u7ed9\u4ed6binwalk\u4e00\u4e0b<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-594.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"731\" height=\"596\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-594.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-925\"  sizes=\"auto, (max-width: 731px) 100vw, 731px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-595-1024x566.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"566\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-595-1024x566.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-926\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>010\u6253\u5f00\u53d1\u73b0\u662f\u4f2a\u52a0\u5bc6<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-596-1024x576.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-596-1024x576.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-927\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-597-1024x464.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"464\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-597-1024x464.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-928\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-598-1024x596.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"596\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-598-1024x596.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-929\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>\u89e3\u538bpdf \u6587\u6863\u9690\u5199 \u7ed9\u4ed6foremost\u4e00\u4e0b<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-599.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"627\" height=\"422\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-599.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-930\"  sizes=\"auto, (max-width: 627px) 100vw, 627px\" \/><\/div><\/figure>\n\n\n\n<p>\u626b\u63cf\u4e00\u4e0b<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-600.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"691\" height=\"831\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-600.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-931\"  sizes=\"auto, (max-width: 691px) 100vw, 691px\" \/><\/div><\/figure>\n\n\n\n<pre class=\"wp-block-code\"><code>06dcb1040f09beba07323d02d94a7c7f207fed02a611504859b211c34da55ab3e6aca35c825d0dc0e99e5b6d87276550ed206f50bcfcbba71636cb66e862d5cd<\/code><\/pre>\n\n\n\n<p>\u89c2\u5bdf\u5230\u538b\u7f29\u5305\u4e2d\u5305\u542b\u4e00\u4e2asha512.txt\u7684\u6587\u4ef6\uff0c\u6240\u4ee5\u5c06128\u4f4d\u957f\u7684\u5b57\u7b26\u4e32\u5b58\u5165<br>txt\u4e2d\u4f5c\u4e3a\u5df2\u77e5\u660e\u6587\u7206\u7834zip\u538b\u7f29\u5305\u3002<\/p>\n\n\n\n<p>\u5148\u521b\u5efa\u4e00\u4e2atxt\u6587\u4ef6\u5c06\u4e8c\u7ef4\u7801\u7684\u5185\u5bb9\u590d\u5236\u7c98\u8d34\u8fdb\u53bb\u7136\u540e\u628a\u5b83\u6dfb\u52a0zip\u6587\u4ef6<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-601-1024x737.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"737\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-601-1024x737.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-932\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-602.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"309\" height=\"140\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-602.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-933\"  sizes=\"auto, (max-width: 309px) 100vw, 309px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-603.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"585\" height=\"569\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-603.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-934\"  sizes=\"auto, (max-width: 585px) 100vw, 585px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-604.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"792\" height=\"529\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-604.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-935\"  sizes=\"auto, (max-width: 792px) 100vw, 792px\" \/><\/div><\/figure>\n\n\n\n<p>\u4e5f\u5c31\u51e0\u5206\u949f\u5f97\u5230\u5bc6\u7801\uff1a4YtiZlvH<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-605-1024x692.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"692\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-605-1024x692.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-936\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>\u5f97\u5230\uff1aFlag{EC5e6lkTsOzVhtCF}<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f8b\u98983\uff1a<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-606.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"786\" height=\"45\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-606.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-937\"  sizes=\"auto, (max-width: 786px) 100vw, 786px\" \/><\/div><\/figure>\n\n\n\n<p>\u4e00\u4e2a\u97f3\u9891<\/p>\n\n\n\n<p>\u5f53\u4f60\u628a0\u7684\u90a3\u4e2a\u8d77\u70b9\u653e\u5927\u5c31\u80fd\u770b\u5230\u8fd9\u4e9b<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-607-1024x445.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"445\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-607-1024x445.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-938\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>\u5c06\u5176\u7406\u89e3\u4e3a\u4e8c\u8fdb\u5236<\/p>\n\n\n\n<p>\u4f46\u662f7\u4f4d\u4e00\u7ec4<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>110011011011001100001110011111110111010111011000010101110101010110011011101011101110110111011110011111101<\/code><\/pre>\n\n\n\n<p>py3\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>string = '110011011011001100001110011111110111010111011000010101110101010110011011101011101110110111011110011111101'\n\nflag = ''\nfor i in range(0, len(string), 7):\n    bin_str = string&#91;i: i + 7]\n    flag += chr(int(bin_str, 2))\n\nprint(flag)\n<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-608.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"899\" height=\"106\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-608.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-939\"  sizes=\"auto, (max-width: 899px) 100vw, 899px\" \/><\/div><\/figure>\n\n\n\n<p>*<em>flag{W0W<\/em>funny}**<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db.\u7f51\u7edc\u6d41\u91cf\u5206\u6790<\/h2>\n\n\n\n<p>\u7f51\u7edc\u6d41\u91cf\u5206\u6790\u662f\u6307\u5229\u7528\u5206\u6790\u6280\u672f\u548c\u7edf\u8ba1\u624b\u6bb5\u5bf9\u7f51\u7edc\u6570\u636e\u5305\u8fdb\u884c\u5904\u7406\uff0c\u4ece\u800c\u5b9e\u73b0\u5bf9\u7f51\u7edc\u7684\u884c\u4e3a\u5206\u6790\u3001\u6027\u80fd\u5206\u6790\u548c\u6545\u969c\u8bca\u65ad\u7b49\u3002\u5b83\u4e5f\u662f\u7f51\u7edc\u53d6<br>\u8bc1\u4e2d\u7ecf\u5e38\u4f7f\u7528\u7684\u624b\u6bb5\u3002\u5728\u51e0\u4e4e\u6240\u6709\u7684CTF\u6bd4\u8d5b\u4e2d\uff0c\u90fd\u4f1a\u6d89\u53ca\u5bf9\u7f51\u7edc\u6d41\u91cf\u5206\u6790\u80fd\u529b\u7684\u8003\u67e5\uff0c\u5c24\u5176\u662f\u5728\u4f01\u4e1a\u6216\u8005\u884c\u4e1a\u5185\u90e8\u7684\u6bd4\u8d5b\u4e2d\uff0c\u6b64\u7c7b\u9898\u76ee\u5c5e\u4e8e\u5fc5\u8003\u9898\u76ee\u3002\u8fd9\u7c7b\u9898\u76ee\u7684\u96be\u5ea6\u9002\u4e2d\uff0c\u6d89\u53ca\u7684\u77e5\u8bc6\u9762\u5e7f\u6cdb\uff0c\u80fd\u6709\u6548\u7ed3\u5408\u4f01\u4e1a\u5185\u90e8\u7684\u4e1a\u52a1\uff0c\u56e0\u6b64\u5efa\u8bae\u5404\u4f4d\u8bfb\u8005\u91cd\u70b9\u5173\u6ce8\u5e76\u719f\u7ec3\u638c\u63e1\u3002\u8fdb\u884c\u7f51\u7edc\u6d41\u91cf\u5206\u6790\u9700\u8981\u638c\u63e1\u591a\u65b9\u9762\u7684\u77e5\u8bc6\uff0c\u4e0d\u4ec5\u6d89\u53ca\u6742\u9879\u77e5\u8bc6\uff0c\u8fd8\u9700\u8981\u7ed3\u5408Web\u6e17\u900f\u7b49\u65b9\u9762\u7684\u57fa\u7840\u77e5\u8bc6\u3002\u672c\u8282\u9996\u5148\u4ecb\u7ecd\u7f51\u7edc\u534f\u8bae\u7684\u57fa\u7840\u6982\u5ff5\uff0c\u7136\u540e\u4ecb\u7ecdWireshark\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u63a5\u7740\u8bf4\u660e\u7f51\u7edc\u6d41\u91cf\u5206\u6790\u7684\u901a\u7528\u6b65\u9aa4\uff0c\u5e76\u5206\u6790HTTP\u3001FTP\u3001Telnet\u3001DNS\u3001USB\u3001TLS\u7b49\u534f\u8bae\u7684\u5e38\u89c1\u8003\u67e5\u70b9\u3002<\/p>\n\n\n\n<p>ICMP\u3001HTTP\u3001FTP\u3001USB\u3001TLS\u3001DNS\u3001Telnet\u7b49\u7b49\u6d41\u91cf<\/p>\n\n\n\n<p>\u5c31\u7b80\u5355\u5f04\u70b9\u9898\u5427<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f8b\u9898\uff1a<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-609.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"780\" height=\"235\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-609.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-940\"  sizes=\"auto, (max-width: 780px) 100vw, 780px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-610-1024x527.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"527\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-610-1024x527.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-941\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>\u770b\u770b\u6d41\u91cf\u53d1\u73b0\u662fpng\u56fe\u7247<\/p>\n\n\n\n<p>\u5bfc\u51fa\u6216\u8005binwalk \u7136\u540eLSB\u770b\u770b\u5c31\u53ef\u4ee5\u4e86<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-611.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"520\" height=\"650\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-611.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-942\"  sizes=\"auto, (max-width: 520px) 100vw, 520px\" \/><\/div><\/figure>\n\n\n\n<p>flag{J0hn_th3_Sn1ff3r}<\/p>\n\n\n\n<p>\u540e\u9762\u8fd8\u6709web shell\u4e2d\u7684\u83dc\u5200\u6d41\u91cf\uff0c\u8681\u5251\u6d41\u91cf\uff0c\u51b0\u874e\u6d41\u91cf\uff0c\u54e5\u65af\u62c9\u6d41\u91cf\u7b49\u540e\u7eed\u518d\u5206\u6790\u8bf4<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u65e5\u5fd7\u5206\u6790<\/h2>\n\n\n\n<p>\u65e5\u5fd7\uff08\u4e5f\u79f0\u4e3aLog\uff09\u662f\u7cfb\u7edf\u8fd0\u884c\u65f6\u6240\u53d1\u751f\u4e8b\u4ef6\u7684\u76f8\u5173\u8bb0\u5f55\uff0c\u5305\u62ec\u65e5\u671f\u3001\u65f6\u95f4\u3001\u4f7f\u7528\u8005\u53ca\u64cd\u4f5c\u7b49\u4fe1\u606f\u7684\u63cf\u8ff0\u3002\u65e5\u5fd7\u5206\u6790\u5c31\u662f\u5bf9\u8fd9\u4e9b\u8bb0\u5f55\u8fdb\u884c\u5ba1\u67e5\u4e0e\u8bc4\u4f30\uff0c\u4ee5\u53d1\u73b0\u7cfb\u7edf\u4e2d\u53ef\u80fd\u5b58\u5728\u7684\u98ce\u9669\u3002<br>\u5728CTF\u6bd4\u8d5b\u4e2d\uff0c\u5bf9\u65e5\u5fd7\u5206\u6790\u7684\u8003\u67e5\u65b9\u6cd5\u591a\u6837\u3002\u4e00\u662f\u53ef\u4ee5\u901a\u8fc7\u65e5\u5fd7\u5bfb\u627e\u7ebf\u7d22\uff0c\u518d\u6839\u636e\u7ebf\u7d22\u627e\u5230flag\u3002\u4f8b\u5982\uff0c\u5728Web\u65e5\u5fd7\u4e2d\u53d1\u73b0\u6709\u4e2a\u5947\u602a\u7684URL\u8bbf\u95ee\u8bb0\u5f55\uff0c\u6211\u4eec\u8bbf\u95ee\u8fd9\u4e2aURL\u5c31\u4f1a\u627e\u5230flag\u3002\u4e8c\u662f\u76f4\u63a5\u628aflag\u9690\u85cf\u5230\u65e5\u5fd7\u4e2d\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8eSQL\u6ce8\u5165\u7684\u65e5\u5fd7\uff0c\u9700\u8981\u6839\u636e\u6ce8\u5165\u6b65\u9aa4\uff0c\u6062\u590d\u653b\u51fb\u8005\u83b7\u53d6\u7684\u4fe1\u606f\u3002\u8fd8\u6709\u4e00\u7c7b\u9898\u76ee\u662f\u6eaf\u6e90\u5206\u6790\uff0c\u901a\u8fc7\u65e5\u5fd7\u53d1\u73b0\u653b\u51fb\u8005\u7684IP\u5730\u5740\u7b49\u3002\u76ee\u524d\uff0cCTF\u6bd4\u8d5b\u4e2d\u7684\u65e5\u5fd7\u5206\u6790\u53ef\u5206\u4e3a\u4e24\u7c7b\uff1aWeb\u65e5\u5fd7\u5206\u6790\u548c\u7cfb\u7edf\u8bbe\u5907\u65e5\u5fd7\u5206\u6790<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f8b\u9898\uff1a<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-612.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"765\" height=\"280\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-612.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-943\"  sizes=\"auto, (max-width: 765px) 100vw, 765px\" \/><\/div><\/figure>\n\n\n\n<p>\u627e\u6076\u610f\u627ePHP\u4ee3\u7801\u540d\u5b57\u5c31\u884c<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-613-1024x375.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"375\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-613-1024x375.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-944\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-614-1024x321.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"321\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-614-1024x321.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-945\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-615-1024x359.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"359\" data-original=\"https:\/\/www.sanjiuctf.cn\/wp-content\/uploads\/2025\/11\/image-615-1024x359.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-946\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>flag{spy.php_shell.php_poison.php}<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u516d.\u7535\u5b50\u53d6\u8bc1\u5206\u6790<\/h2>\n\n\n\n<p>\u5728CTF\u6bd4\u8d5b\u4e2d\uff0c\u6211\u4eec\u4f1a\u9047\u5230\u4e00\u7c7b\u88ab\u79f0\u4e3a\u201cForensics\u201d\uff0c\uff08\u4e5f\u79f0\u4e3a\u7535\u5b50\u53d6\u8bc1\u6216\u8ba1\u7b97\u673a\u53d6\u8bc1\uff09\u7684\u9898\u76ee\uff0c\u8fd9\u7c7b\u9898\u76ee\u5e38\u5e38\u88ab\u5f52\u4e8eMISC\u8303\u7574\u3002\u4e0a\u8282\u6240\u8bb2\u7684\u6d41\u91cf\u5206\u6790\u4e5f\u662f\u7535\u5b50\u53d6\u8bc1\u7684\u4e00\u79cd\u3002\u76ee\u524d\uff0c\u7535\u5b50\u53d6\u8bc1\u5df2\u7ecf\u6210\u4e3a\u8ba1\u7b97\u673a\u9886\u57df\u548c\u6cd5\u5b66\u9886\u57df\u7684\u4e00\u95e8\u4ea4\u53c9\u5b66\u79d1\u3002\u7535\u5b50\u53d6\u8bc1\u5e76\u6ca1\u6709\u4e00\u4e2a\u7edf\u4e00\u7684\u5b9a\u4e49\uff0c\u4f46\u76ee\u524d\u8f83\u4e3a\u5e7f\u6cdb\u7684\u8ba4\u8bc6\u662f\uff1a\u7535\u5b50\u53d6\u8bc1\u662f\u6307\u5229\u7528\u8ba1\u7b97\u673a\u8f6f\u786c\u4ef6\u6280\u672f\uff0c\u4ee5\u7b26\u5408\u6cd5\u5f8b\u89c4\u8303\u7684\u65b9\u5f0f\uff0c\u5bf9\u5b58\u5728\u4e8e\u8ba1\u7b97\u673a\u548c\u76f8\u5173\u7535\u5b50\u8bbe\u5907\u4e2d\u7684\u76f8\u5173\u7535\u5b50\u8bc1\u636e\u8fdb\u884c\u786e\u8ba4\u3001\u6536\u96c6\u3001\u6062\u590d\u3001\u4fdd\u5168\u3001\u56fa\u5316\u3001\u5206\u6790\u3001\u5f52\u6863\u548c\u5448\u73b0\u3002\u5c3d\u7ba1\u7535\u5b50\u53d6\u8bc1\u901a\u5e38\u4e0e\u5404\u79cd\u8ba1\u7b97\u673a\u72af\u7f6a\u7684\u8c03\u67e5\u6709\u5173\uff0c\u4f46\u7535\u5b50\u53d6\u8bc1\u4e5f\u53ef\u4ee5\u7528\u4e8e\u6c11\u4e8b\u8bc9\u8bbc\u3002\u7535\u5b50\u53d6\u8bc1\u7684\u57fa\u7840\u662f\u8bfa\u5361\u5fb7\u4ea4\u6362\u539f\u7406\uff08\u4e5f\u53eb\u7269\u8d28\u4ea4\u6362\u539f\u7406\uff09\uff0c\u5f53\u4e24\u4e2a\u5bf9\u8c61\u63a5\u89e6\u65f6\uff0c\u7269\u8d28\u5c31\u4f1a\u5728\u8fd9\u4e24\u4e2a\u5bf9\u8c61\u4e4b\u95f4\u53d1\u751f\u4ea4\u6362\u6216\u4f20\u9001\u3002\u8fd9\u4e2a\u539f\u7406\u8bf4\u660e\uff0c\u53ea\u8981\u4ecb\u8d28\u4e4b\u95f4\u53d1\u751f\u8fc7\u6570\u636e\u8f6c\u79fb\uff0c\u5c31\u4f1a\u7559\u4e0b\u75d5\u8ff9\uff0c\u7535\u5b50\u53d6\u8bc1\u5c31\u662f\u8981\u53d1\u73b0\u8fd9\u4e9b\u75d5\u8ff9\u3002\u4f46\u662f\uff0c\u8fd9\u4e2a\u539f\u7406\u4e5f\u8bf4\u660e\uff0c\u53d6\u8bc1\u4eba\u5458\u4e0e\u88ab\u53d6\u8bc1\u8bbe\u5907\u7684\u4ea4\u4e92\u8d8a\u591a\uff0c\u7cfb\u7edf\u53d1\u751f\u66f4\u6539\u7684\u6982\u7387\u8d8a\u9ad8\uff0c\u7535\u5b50\u8bc1\u636e\u88ab\u66f4\u6539\u6216\u8986\u76d6\u7684\u6982\u7387\u8d8a\u5927\u3002\u8fd9\u5c31\u8981\u6c42\u5728\u8fdb\u884c\u53d6\u8bc1\u65f6\u4e0d\u8981\u4efb\u610f\u66f4\u6539\u76ee\u6807\u673a\u5668\u6216\u8005\u76ee\u6807\u7f51\u7edc\u73af\u5883\uff0c\u5e94\u505a\u597d\u76f8\u5173\u5907\u4efd\u3002<\/p>\n\n\n\n<p>\u57fa\u672c\u5206\u7c7b\uff1a\u78c1\u76d8\u53d6\u8bc1\uff0c\u5185\u5b58\u53d6\u8bc1\uff0c\u6570\u5b57\u53d6\u8bc1<\/p>\n\n\n\n<p>\u5176\u4ed6\uff1a\u538b\u7f29\u5305\u5206\u6790\u7834\u89e3<\/p>\n\n\n\n<p>\u8fd9\u4e9b\u53d6\u8bc1\u540e\u7eed\u518d\u5199\u548c\u8bf4\uff0c\u8fd9\u4e2a\u6587\u7ae0\u53ea\u662f\u57fa\u672c\u4ecb\u7ecd<\/p>\n\n\n\n<h3 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