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Oct 13 · Tuesday

All papers

Found 31 papers

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  1. Space beats statistics, retraining beats ranking: auditing training labels under label-only backdoors

    Auditing training labels for label-only backdoors, comparing spaces and statistics, and judging by retraining

    Published
    Evaluated models
    ResNet-32
    AbstractLabel inspection must be done in a space that has not been fitted to these labels, and judged by retrained models rather than detection scores.

    The authors ask: can a defender without trusted data decide which training labels to keep, and how much clean data this destroys, and what the final model accuracy is.

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  2. AttacksarXiv 2610.12644

    Cancerous backdoor attack: progressive activation via invisible tokens and a stage controller.

    Proposes the Cancerous backdoor, which progressively corrupts reasoning using invisible stage tokens.

    Published
    Evaluated models
    Llama-3.1-8B-Instruct, Qwen2.5-7B-Instruct, Mistral-7B-Instruct-v0.3
    AbstractHidden tokens plus a stage controller make the backdoor progressively corrupt reasoning upon triggering, and the authors believe that looking only at the answer will miss it.

    Cancerous Backdoor Attack changes LLM backdoors from one-time activation to multi-stage reasoning corruption that accumulates progressively with triggers.

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  3. DefensesarXiv 2610.09941

    OrthoPurify 用一步正交投影净化被后门污染的视觉语言模型

    提出 OrthoPurify,用正交投影清除视觉语言模型适配器中的劫持方向

    Published
    Evaluated models
    LLaVA-1.5-7B, Qwen3-VL-8B, LLaVA-1.5-13B and others5
    Abstract一次投影去掉劫持方向。

    OrthoPurify 是部署前的 LVLM 后门净化方法,用一次正交投影去掉被劫持的权重更新方向。

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  4. AttacksarXiv 2610.05793

    研究者训练出按多智能体拓扑触发的代码后门模型

    提出拓扑条件后门,使代码模型在推断多智能体部署时植入漏洞

    Published
    Evaluated models
    Qwen2.5-7B-Instruct, Qwen2.5-Coder-7B-Instruct

    Abstract论文证实了拓扑条件后门的可训练性与泛化性,展示了常规评测盲区,并提出差异化拓扑审计作为检测防御方向。

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  5. 研究揭示无触发投毒审计缺口:事实答对不等于决策正确

    揭示无触发虚假训练下事实回答与下游决策的审计差距

    Published
    Evaluated models
    Qwen2.5-0.5B, Qwen2.5-1.5B, Qwen2.5-3B and others9
    Abstract作者发现无触发词虚假训练下事实回答与下游决策存在脱节,直接审计与事实纠错均无法保证决策正确。

    论文是一项针对语言模型在无触发词虚假信息训练下行为表现的实证分析研究。

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  6. DefensesarXiv 2609.38909

    Purdue 提出 Pact:将欺骗作为行为遗忘

    提出 PACT,遗忘推理模型在压力下的欺骗行为并保留上下文理解

    Published
    Attacker
    White-box
    Evaluated models
    DeepSeek-R1-Distill-Qwen-32B, QwQ-32B

    Abstract论文将大模型欺骗形式化为上下文条件行为,提出 PACT 框架在消除欺骗的同时保留了上下文遵循能力。

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  7. DefensesarXiv 2610.00348

    NEEDLE:通过权重正交化移除 LLM 后门

    提出 NEEDLE,用权重正交化在已知触发器时去除大模型后门

    Published
    Evaluated models
    Gemma-3-4B-IT, Qwen3-4B-Instruct-2507, Gemma-3-12B-IT

    AbstractNEEDLE 用闭式权重编辑去掉已知触发器的后门,并保住拒绝子空间。

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  8. arXiv 论文分析神经网络为何容易被植入后门

    分析投毒诱发的特征学习如何改变后门预算缩放

    Published
    Evaluated models
    quadratic neuron, network
    Abstract作者给出特征学习改变后门预算指数的可解机制,并以高斯采样实验检验。

    这是一项后门预算的理论分析,核心对象是最小二乘训练的二次神经元。作者关注:只依据冻结表示估算投毒成本,是否会误判具有特征学习能力的模型。

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  9. DefensesarXiv 2609.34804

    物理认证联邦学习:为关键水务基础设施的协同异常检测提供安全保障

    为协同异常检测提出物理准入门,在聚合前拦截不合规训练批次

    Published
    Evaluated models
    deep reconstruction autoencoder
    Abstract物理准入为联邦检测增加数据约束,但合规证明不等于无投毒或训练来源证明。

    这是一项面向水基础设施联邦异常检测的物理准入防御研究。 作者针对隐藏训练遥测带来的投毒检查问题,结合不变量挖掘、聚合前过滤和零知识抽样证明。

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  10. AttacksarXiv 2609.33569

    信息黑洞:3D 点云重建中的后门机制研究

    提出 Information Blackhole 与 AGM,控制点云自编码器后门重建到指定形状

    Published
    Evaluated models
    FoldingNet, PointDiffusion
    AbstractAGM 用自适应高斯匹配压制 PCAE 投毒潜码中的源几何,九组设置的 CD-ASD 均下降。

    这篇工作研究点云自编码器的训练时后门:干净输入仍自重建,带触发的输入应重建成攻击者指定形状。分类后门只需把预测推向离散标签。PCAE 把源几何与目标信息编进同一个连续潜空间,残留源几何会把重建拉回源形状。

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  11. AttacksarXiv 2609.27422

    RAMP:逆转对抗扰动以增强针对恶意软件检测器的干净标签后门攻击

    提出 RAMP,逆转对抗扰动加强恶意软件检测器的干净标签后门

    Published
    Evaluated models
    MalConv, MalConvGCG
    AbstractRAMP 用反转扰动做 clean-label 投毒。

    RAMP 是 score-based black-box 下的 clean-label 后门增强,对象是会微调的 Windows PE 原始字节恶意软件检测器。

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  12. AttacksarXiv 2609.17817

    论文:用投毒基准污染自改进编码 Agent,令其后续版本写出漏洞代码

    提出基准投毒攻击,使自修改编码 Agent 跨代写出含漏洞代码

    Published
    Evaluated models
    Claude Sonnet 4.5, Qwen3.5-397B, gpt-oss-120b and others5

    Abstract论文报告了恶意基准能污染自修改代码智能体的进化过程并持续输出漏洞,警示系统设计需纳入安全约束。

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  13. 监督学习中的数据投毒攻击实证评估:标签翻转与后门投毒在 MNIST 和 Fashion-MNIST 上的对比

    比较标签翻转与后门投毒对图像分类器的影响

    Published
    Evaluated models
    Logistic Regression, Linear SVM, Random Forest
    Abstract标签翻转更能拉低线性模型。

    Khan 与 Abusaqer 在两个图像分类基准上比较了两种训练时投毒。

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  14. DefensesarXiv 2609.09564

    基于神经形态时序嵌入与混合 SNN-XGBoost 的工业信息物理系统鲁棒分类:面向机器遗忘攻击

    提出冻结特征提取并只重训分类器的混合检测,抵御标签翻转式机器遗忘

    Published
    Evaluated models
    Hybrid SNN+XGBoost, Direct-SNN
    Abstract冻结 SNN 膜电位嵌入、只重训 XGBoost,在两个 PMU 数据集上分类攻击并推迟标签投毒下的崩溃。

    SNN+XGBoost 把一次训练的神经形态前端和可周期更新的树分类器拆开,用来做电网多类入侵检测,并针对 machine unlearning 式标签翻转。

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  15. DefensesarXiv 2609.07063

    VERITAS:抗投毒的本地差分隐私图学习协议

    提出 VERITAS,用双边背书剪除本地隐私图学习中的投毒节点

    Published
    Evaluated models
    GCN, GraphSAGE, GAT
    AbstractVERITAS 用分级信任的双边背书剪除 LDP 图学习中的投毒节点,并恢复分类准确率。

    VERITAS 是面向本地差分隐私图学习的投毒防御协议,按 trust-but-verify 在保持 ϵ-LDP 的同时剪除伪造节点。

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