{"id":119624,"date":"2026-10-30T01:56:43","date_gmt":"2026-10-29T17:56:43","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/119624.html"},"modified":"2026-10-30T01:56:43","modified_gmt":"2026-10-29T17:56:43","slug":"understanding-and-enhancing-backdoor-persistency-in-llm-agent-post-training-%e8%ae%ba%e6%96%87%e6%80%bb%e7%bb%93%e4%b8%8e%e7%bf%bb%e8%af%91","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/119624.html","title":{"rendered":"Understanding and Enhancing Backdoor Persistency in LLM Agent Post\u2011Training \u8bba\u6587\u603b\u7ed3\u4e0e\u7ffb\u8bd1"},"content":{"rendered":"<p># Understanding and Enhancing Backdoor Persistency in LLM Agent Post\u2011Training \u8bba\u6587\u603b\u7ed3\u4e0e\u7ffb\u8bd1&gt; \u8bba\u6587arXiv\uff1ahttps:\/\/arxiv.org\/abs\/2610.07510&gt; \u4f1a\u8bae\uff1aEMNLP 2026 Findings<\/p>\n<p>## \u4e00\u3001\u8bba\u6587\u4e3b\u8981\u5185\u5bb9\u672c\u6587\u7814\u7a76**\u5927\u8bed\u8a00\u6a21\u578bAgent\u4f9b\u5e94\u94fe\u5b89\u5168\u5a01\u80c1\uff1a\u9884\u690d\u5165\u540e\u95e8\u5728\u5f00\u53d1\u8005\u540e\u7eed\u540e\u8bad\u7ec3\u6d41\u7a0b\u4e2d\u7684\u5b58\u6d3b\u80fd\u529b**\u3002\u73b0\u5b9e\u573a\u666f\u4e2d\u5f00\u53d1\u8005\u7ecf\u5e38\u57fa\u4e8e\u7b2c\u4e09\u65b9\u5f00\u6e90\u6a21\u578b\uff0c\u901a\u8fc7\u826f\u6027\u7684\u6709\u76d1\u7763\u5fae\u8c03\uff08SFT\uff09\u3001\u4efb\u52a1\u5f3a\u5316\u5b66\u4e60\uff08RL\uff09\u6765\u6784\u5efa\u8f6f\u4ef6\u5de5\u7a0b\u7c7bLLM Agent\uff1b\u653b\u51fb\u8005\u53ef\u4ee5\u63d0\u4f9b\u5df2\u7ecf\u690d\u5165\u540e\u95e8\u7684\u9884\u8bad\u7ec3\u6a21\u578b\uff0c\u540e\u95e8\u5728\u7279\u5b9a\u89e6\u53d1\u8f93\u5165\u4e0b\u8f93\u51fa\u6076\u610f\u884c\u4e3a\u3002<\/p>\n<p>1. **\u6838\u5fc3\u73b0\u8c61\u53d1\u73b0**\uff1a\u826f\u6027SFT\u4f1a\u663e\u8457\u964d\u4f4e\u540e\u95e8\u653b\u51fb\u6210\u529f\u7387\uff0c\u4f46\u7d27\u968f\u5176\u540e\u7684RL\u5f80\u5f80\u4f1a\u4fdd\u7559SFT\u4e4b\u540e\u6b8b\u4f59\u7684\u540e\u95e8\u884c\u4e3a\uff0c\u751a\u81f3\u4f1a\u63d0\u5347\u653b\u51fb\u6210\u529f\u7387\uff0c\u540e\u95e8\u5e76\u4e0d\u4f1a\u88ab\u540e\u8bad\u7ec3\u5b8c\u5168\u6d88\u9664\u30022. **\u5f71\u54cd\u540e\u95e8\u5b58\u6d3b\u7684\u4e24\u5927\u5173\u952e\u56e0\u7d20**\uff1a\u2460\u521d\u59cb\u540e\u95e8\u5f3a\u5ea6\uff1b\u2461\u540e\u95e8\u68af\u5ea6\u4e0e\u826f\u6027\u8bad\u7ec3\u4efb\u52a1\u7684**\u68af\u5ea6\u517c\u5bb9\u6027**\u3002\u8fd9\u4e24\u4e2a\u56e0\u7d20\u51b3\u5b9a\u540e\u95e8\u5728SFT\u8fc7\u7a0b\u4e2d\u662f\u5426\u5bb9\u6613\u88ab\u64e6\u9664\u30023. **\u63d0\u51faPersistBD\u65b9\u6cd5**\uff1a\u653b\u51fb\u8005\u89c6\u89d2\u7684\u589e\u5f3a\u540e\u95e8\u6301\u4e45\u5316\u7b97\u6cd5\u3002\u5728\u5e26\u540e\u95e8\u6a21\u578b\u5bf9\u5916\u53d1\u5e03\u4e4b\u524d\u5bf9\u6a21\u578b\u505a\u4e8c\u6b21\u7cbe\u70bc\uff0c\u63d0\u5347\u540e\u95e8\u62b5\u6297\u5f00\u53d1\u8005SFT+RL\u7684\u80fd\u529b\uff0c\u540c\u65f6\u5c3d\u91cf\u4e0d\u7834\u574f\u6a21\u578b\u6b63\u5e38\u4e1a\u52a1\u6027\u80fd\u30024. **\u5b9e\u9a8c\u7ed3\u679c\uff08Qwen2.5\u2011Coder\u20117B\uff09**\uff1a\u666e\u901a\u540e\u95e8\u7ecf\u8fc7SFT\u540e\u653b\u51fb\u6210\u529f\u7387\u4ec520%\uff0cSFT+RL\u4e4b\u540e\u4ecd20%\uff1b\u7ecf\u8fc7PersistBD\u5904\u7406\u540e\uff0cSFT\u540e\u653b\u51fb\u6210\u529f\u7387\u63d0\u5347\u81f374%\uff0cSFT\u2011RL\u6d41\u7a0b\u540e\u8fbe\u523076%\uff0c\u6a21\u578b\u826f\u6027\u4efb\u52a1\u6027\u80fd\u57fa\u672c\u4fdd\u6301\u4e0d\u53d8\u30025. **\u5b89\u5168\u542f\u793a**\uff1a\u7b2c\u4e09\u65b9\u6a21\u578b\u7ee7\u627f\u800c\u6765\u7684\u540e\u95e8\u53ef\u4ee5\u5728\u5f00\u53d1\u8005\u5168\u5957\u826f\u6027\u540e\u8bad\u7ec3\u4e4b\u540e\u4f9d\u7136\u751f\u6548\uff0c\u5b58\u5728\u771f\u5b9e\u4f9b\u5e94\u94fe\u98ce\u9669\uff1b\u9700\u8981\u65b0<\/p>\n","protected":false},"excerpt":{"rendered":"<p># Understanding and Enhancing Backdoor Persistency in LLM Agent Post\u2011Training \u8bba\u6587\u603b\u7ed3\u4e0e\u7ffb\u8bd1&gt; \u8bba\u6587arXiv\uff1ahttps:\/\/arxiv.org\/abs\/2610.07510&gt; \u4f1a\u8bae\uff1aEMNLP 2026 Findings<br \/>\n## \u4e00\u3001\u8bba\u6587\u4e3b\u8981\u5185\u5bb9\u672c\u6587\u7814\u7a76**\u5927\u8bed\u8a00\u6a21\u578bAgent\u4f9b\u5e94\u94fe\u5b89\u5168\u5a01\u80c1\uff1a\u9884\u690d\u5165\u540e\u95e8\u5728\u5f00\u53d1\u8005\u540e\u7eed\u540e\u8bad\u7ec3\u6d41\u7a0b\u4e2d\u7684\u5b58\u6d3b\u80fd\u529b**\u3002\u73b0\u5b9e\u573a\u666f\u4e2d\u5f00\u53d1\u8005\u7ecf\u5e38\u57fa\u4e8e\u7b2c\u4e09\u65b9\u5f00\u6e90\u6a21\u578b\uff0c\u901a\u8fc7\u826f\u6027\u7684\u6709\u76d1<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[50,224,51],"topic":[],"class_list":["post-119624","post","type-post","status-publish","format-standard","hentry","category-server","tag-50","tag-224","tag-51"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Understanding and Enhancing Backdoor Persistency in LLM Agent Post\u2011Training \u8bba\u6587\u603b\u7ed3\u4e0e\u7ffb\u8bd1 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/119624.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Understanding and Enhancing Backdoor Persistency in LLM Agent Post\u2011Training \u8bba\u6587\u603b\u7ed3\u4e0e\u7ffb\u8bd1 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"# Understanding and Enhancing Backdoor Persistency in LLM Agent Post\u2011Training \u8bba\u6587\u603b\u7ed3\u4e0e\u7ffb\u8bd1&gt; 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