Severity: HighAction: Be aware

AI coding agents hijacked using AGENTS.md file in Downloads folder

Researchers found a malicious AGENTS markdown instruction file in a customer's Downloads folder that tricked an AI coding agent into installing a rogue npm package.

Excerpt from the primary source: BleepingComputer

Who is affected

Developers

Affected technology: npm registry

What you should do · Be aware

No immediate action is indicated. Share this with the relevant teams and watch for updates.

Automated guidance based on this story's classification. Check the linked advisories for specifics.

Sources

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Original reporting

AI coding agents hijacked using AGENTS.md file in Downloads folder BleepingComputer · bleepingcomputer.com · Oct 25, 2026 · Primary source
Severity: HighAction: Be aware

Malicious npm Packages That Evade Defenses

This is an impressive piece of malware . Its sophistication says nation-state to me, but there is no direct evidence and certainly no attribution.

Severity: HighAction: Be aware

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