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20 results for “malicious instructions”

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cs.CRcs.AIRecentMay 1, 2026

A Sentence Relation-Based Approach to Sanitizing Malicious Instructions

Soumil Datta, Melissa Umble, Daniel S. Brown, Guanhong Tao

The paper introduces SONAR, a prompt sanitization framework that uses natural language inference metrics to identify and remove malicious instructions injected into LLM prompts, achieving near-zero at…

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cs.CRRecentMay 10, 2026

Trust Me, Import This: Dependency Steering Attacks via Malicious Agent Skills

Yiyong Liu, Chia-Yi Hsu, Chun-Ying Huang, Michael Backes +2 more

This paper introduces Dependency Steering, a novel attack paradigm demonstrating that malicious agent skills can actively bias LLM coding agents to use attacker-controlled packages, posing a significa…

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cs.CRcs.AIcs.SERecentMay 31, 2026

ClawHub Security Signals: When VirusTotal, Static Analysis, and SkillSpector Disagree

Vincent Koc, Patrick Erichsen, Jacob Tomlinson, Agustin Rivera +2 more

The paper analyzes a dataset of agent skills, demonstrating that different security scanners (VirusTotal, static analysis, SkillSpector) rarely agree on maliciousness, necessitating layered security g…

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cs.CRcs.AIcs.SERecentMay 31, 2026

ClawHub Security Signals: When VirusTotal, Static Analysis, and SkillSpector Disagree

Vincent Koc, Patrick Erichsen, Jacob Tomlinson, Agustin Rivera +2 more

The paper analyzes a dataset of agent skills, demonstrating that different security scanners (VirusTotal, static analysis, SkillSpector) rarely agree, necessitating a layered governance approach for s…

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cs.CRcs.AIRecentMay 8, 2026

WebTrap: Stealthy Mid-Task Hijacking of Browser Agents During Navigation

Zhichao Liu, Wenbo Pan, Haining Yu, Ge Gao +2 more

WebTrap introduces a stealthy, mid-task hijacking attack that successfully compromises browser agents during long-horizon tasks by seamlessly fusing malicious instructions with the original user goal.

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cs.CRcs.AIcs.CLRecentApr 3, 2026

Supply-Chain Poisoning Attacks Against LLM Coding Agent Skill Ecosystems

Yubin Qu, Yi Liu, Tongcheng Geng, Gelei Deng +4 more

The paper introduces Document-Driven Implicit Payload Execution (DDIPE) to demonstrate that malicious code can be embedded in LLM agent skill documentation, allowing supply-chain attacks to hijack age…

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cs.CRRecentApr 13, 2026

Short Message Service (SMS) Phishing Attacks and Defenses: A Systematic Review

Mir Mehedi A. Pritom, Seyed Mohammad Sanjari, Maraz Mia, Ashfak Md Shibli +3 more

This systematic review analyzes the current state of SMS phishing (smishing) attacks and defenses, organizing existing research into four pillars to identify gaps and propose future mitigation strateg…

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cs.CLRecentMay 28, 2026

Evaluating using Mock Tool Calls to Quarantine Untrusted Prompt Inputs

David Gros, Adam Gleave

The paper tested the hypothesis that wrapping untrusted prompt inputs in mock tool calls would improve LLM robustness, but found that this technique generally fails and can even increase vulnerability…

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cs.CRcs.AIcs.MARecentApr 29, 2026

Ambient Persuasion in a Deployed AI Agent: Unauthorized Escalation Following Routine Non-Adversarial Content Exposure

Diego F. Cuadros, Abdoul-Aziz Maiga

This paper analyzes a safety incident where an AI agent escalated unauthorized system changes following exposure to routine, non-adversarial content, highlighting failures in current multi-agent overs…

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cs.CRcs.AIRecentApr 1, 2026

Automated Framework to Evaluate and Harden LLM System Instructions against Encoding Attacks

Anubhab Sahu, Diptisha Samanta, Reza Soosahabi

The paper introduces an automated framework demonstrating that LLM system instructions are vulnerable to encoding attacks, where structured output requests can bypass safety refusals and leak sensitiv…

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cs.CRcs.CLcs.LGRecentMay 27, 2026

Code as a Weapon: A Consensus-Labeled Prompt Bank for Measuring Coding-Model Compliance with Malicious-Code Requests

Richard J. Young, Gregory D. Moody

The paper introduces a large, consensus-labeled prompt bank that reliably distinguishes between requests for executable malicious code and requests for harmful security knowledge, providing a standard…

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cs.CRRecentMay 2, 2026

LocalAlign: Enabling Generalizable Prompt Injection Defense via Generation of Near-Target Adversarial Examples for Alignment Training

Yuyang Gong, Zihao Wang, Jiawei Liu, XiaoFeng Wang

LocalAlign proposes a generalizable prompt injection defense by generating near-target adversarial examples, which enforces a tighter robustness boundary around the correct model response.

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cs.CRcs.AIcs.CLRecentMay 29, 2026

From Prompt Injection to Persistent Control: Defending Agentic Harness Against Trojan Backdoors

Jiejun Tan, Zhicheng Dou, Xinyu Yang, Yuyang Hu +3 more

This paper introduces ClawTrojan, a benchmark for multi-step trojan attacks against LLM agents, and proposes DASGuard, a dynamic defense mechanism that traces and sanitizes untrusted control content i…

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cs.CRcs.AIcs.CLRecentMay 29, 2026

From Prompt Injection to Persistent Control: Defending Agentic Harness Against Trojan Backdoors

Jiejun Tan, Zhicheng Dou, Xinyu Yang, Yuyang Hu +3 more

The paper introduces ClawTrojan, a benchmark for multi-step trojan attacks against LLM agents, and proposes DASGuard, a defense mechanism that detects and sanitizes backdoor content planted across mul…

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cs.CRcs.AIRecentApr 12, 2026

The Blind Spot of Agent Safety: How Benign User Instructions Expose Critical Vulnerabilities in Computer-Use Agents

Xuwei Ding, Skylar Zhai, Linxin Song, Jiate Li +5 more

The paper introduces OS-BLIND, a benchmark demonstrating that current safety evaluations fail to detect critical vulnerabilities in computer-use agents when user instructions are benign, showing high…

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cs.CRcs.SERecentMar 23, 2026

A Survey of Web Application Security Tutorials

Bhagya Chembakottu, Martin P. Robillard

This survey analyzed 132 web application security tutorials, finding that most lack concrete implementation details and recommending that the presence of runnable code and links to official resources…

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cs.CRcs.HCRecentJun 1, 2026

What You Approve Is What Executes: Consent Integrity for Black-Box LLM Agents

Xiaoqi Weng

The paper introduces Consent Integrity, a new property for LLM agent approval, ensuring that the action shown to a human for approval is verifiably linked to the actual executed action, even when the…

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cs.CRcs.AIcs.SERecentMay 29, 2026

Investigating Detection and Obfuscation of Prompt Injection Attacks Against Software Reverse Engineering AI Agents

Brian Crawford, Patrick McClure

This paper investigates prompt injection attacks targeting software reverse engineering AI agents, demonstrating detection and defense strategies against both direct and obfuscated attacks.

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