Malware in fhirproxy-utils
Malware was discovered in the npm package fhirproxy-utils, resulting in full system compromise for any computer with the package installed or running. All secrets and keys on affected systems should be rotated immediately, and the package should be removed.
- Disclosed
- Last updated
- Blast radius
- Any system with fhirproxy-utils installed or running
- Ecosystems
- Attack vectors
- Affected entities
- fhirproxy-utils
A critical malware incident was identified in the npm package fhirproxy-utils. According to the GitHub Advisory (GHSA-cw9q-6cmp-p38r), any computer with 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 system. While the package should be removed, the advisory notes that full control of the computer may have been given to an outside entity, meaning removal of the package alone may not eliminate all malicious software that resulted from the installation.\n\nThis represents a severe supply chain attack through a compromised npm package with potential for widespread impact across all systems that have installed or executed the affected package.
Indicators of compromise
- Packages
- fhirproxy-utils
Remediation
- Immediately rotate all secrets and keys from a different, uncompromised computer
- Remove the fhirproxy-utils package from all affected systems
- Conduct a full security audit of any system that had fhirproxy-utils installed
- Monitor affected systems for signs of unauthorized access or persistence mechanisms
- Consider full system reimaging if the package was installed on critical infrastructure
- Review access logs and audit trails for any suspicious activity during the period the package was installed
Sources
- GitHub Advisory GHSA-cw9q-6cmp-p38r · GitHub Advisory Database
Cite this entry
"Malware in fhirproxy-utils." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 15, 2026; last updated July 15, 2026. https://supplychainattack.org/incident/malware-in-fhirproxy-utils-1v3nsy
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