First reported proofpoint.com
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 mitiga.io
MCP Token Theft in Claude Code: A Man-in-the-Middle Attack Chain
Mitiga Labs research details a man-in-the-middle attack chain against Claude Code in which a user-level post-install hook rewrites MCP server endpoints in ~/.claude.json to route MCP traffic through attacker-controlled infrastructure and steal OAuth tokens for connected SaaS (Jira, Confluence, GitHub, etc.). Because provider-side audit logs still show valid OAuth traffic from Anthropic's trusted egress range, the malicious activity blends in as legitimate user actions, and token rotation fails to break the chain while the hook keeps reseeding the config. Details →First reported bleepingcomputer.com
The Replicant in Your Directory: AI Agents and the Identity Security Gap
A sponsored analysis piece by Netwrix CEO Grady Summers argues that AI agents, service accounts, OAuth apps, and other non-human identities now vastly outnumber human users and fall outside identity governance built for people. It cites the 2025 UNC6395 campaign, in which an OAuth token tied to Salesloft's Drift integration was abused to pivot across hundreds of Salesforce environments and reach AWS/Snowflake credentials, as an example of how a single trusted machine identity can cascade—an issue AI agents accelerate by creating and inheriting identities at machine speed. Details →First reported · updated · 2 reports talosintelligence.com
ARToken: Inside an EvilTokens affiliate panel targeting Microsoft 365
Cisco Talos documents ARToken, a phishing-as-a-service affiliate panel sharing infrastructure with the EvilTokens platform, that abuses Microsoft's OAuth device authorization grant to steal tokens and bypass MFA. The AI element is an AI-augmented BEC pipeline chaining Groq-hosted Llama models for financial exposure scoring and GPT-4o-mini for email translation, plus AI-powered personalized lures, to automate fraud against compromised Microsoft 365 mailboxes. Details →How the wire is made
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