Malware in metrics-probe-f256
The npm package metrics-probe-f256 contained malware that provided full system compromise to attackers. Any computer with this package installed should be considered fully compromised and all secrets and keys rotated immediately.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- metrics-probe-f256
The npm package metrics-probe-f256 was found to contain malware. According to the GitHub Advisory (GHSA-wrx9-4534-jwh6), any computer that has this package installed or running should be considered fully compromised.\n\nThe advisory recommends that all secrets and keys stored on affected computers be rotated immediately from a different, uncompromised computer. While the package should be removed, the advisory notes that full control of the computer may have been given to an outside entity, meaning there is no guarantee that removing the package will remove all malicious software resulting from the installation.\n\nThis represents a critical supply chain attack through a malicious npm package with broad potential impact on any system where it was installed or executed.
Indicators of compromise
- Packages
- metrics-probe-f256
Remediation
- Immediately remove the metrics-probe-f256 package from all systems
- Rotate all secrets, API keys, credentials, and cryptographic keys from a different, uncompromised computer
- Perform a full security audit and malware scan of any computer that had this package installed
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider the affected system(s) as potentially fully compromised and plan for complete rebuild if critical infrastructure
Sources
- GitHub Advisory GHSA-wrx9-4534-jwh6 · GitHub Advisory Database
Cite this entry
"Malware in metrics-probe-f256." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 18, 2026; last updated June 20, 2026. https://supplychainattack.org/incident/malware-in-metrics-probe-f256-39c0sc
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