First reported · updated · 2 reports stepsecurity.io
Lead dispatch
First reported island.io
AgentBaiting: How Fake AI Skills Deliver Malware at Scale
Island security researchers uncovered the FakeGit campaign, which used roughly 7,600 malicious GitHub repositories—over 800 posing as AI Skills or MCP servers—to deliver SmartLoader malware that installs the StealC information stealer. The campaign introduces a technique called AgentBaiting, in which AI agents such as Claude Code, Gemini, and ChatGPT autonomously discover the attacker repositories, treat the malicious README as legitimate documentation, and pass installation instructions to users; the operation recorded over 14 million downloads.supply-chain · tool-abuse · malware-delivery · agentbaiting
mcp · ai-agents · ai-skills · llm · copilot
Severity
0.75
The wire · latest
First reported phoenix.security
Supply Chain Attacks 2026: npm, PyPI, VS Code, AI Agents — 0 CVEs
Phoenix Security's Malware Package Intelligence report analyzes 59 supply chain attack campaigns and 657 malicious package-versions from June 2024 to June 2026, documenting an acceleration across npm, PyPI, and the VS Code Marketplace. It highlights a May 2026 self-propagating worm that turned one compromised maintainer token into 226 poisoned packages, and finds AI agent tooling — MCP server injection, .cursorrules poisoning, CLAUDE.md hidden instructions, and AI coding assistant SessionStart hooks — used as a confirmed delivery mechanism in at least 14 of the 59 campaigns. Details →First reported infoworld.com
Meet Hades: The malware that lies to AI security agents
StepSecurity researchers uncovered the Hades Campaign, a sophisticated supply-chain compromise targeting Python developer environments via infected packages (including ensmallen). The self-propagating worm extracts sensitive data, moves laterally, and notably uses adversarial prompt injection to trick LLM-based code analysis/AI gatekeeper systems into overlooking its malicious payloads. It is described as the latest evolution of the Miasma threat actor. Details →How the wire is made
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