Malware in @0xlr/test-callback
Malware discovered in the npm package @0xlr/test-callback. The package grants full control of affected systems to an outside entity and should be considered a critical compromise vector.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- @0xlr/test-callback
A malicious npm package, @0xlr/test-callback, has been identified as containing malware. According to the GitHub Advisory (GHSA-p6vh-r7p3-72r9), any computer with this package installed or running should be considered fully compromised.\n\nThe advisory recommends immediate action: all secrets and keys stored on affected computers should be rotated 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 critical supply chain attack through a malicious npm package with potential for complete system compromise.
Indicators of compromise
- Packages
- @0xlr/test-callback
Remediation
- Immediately remove the @0xlr/test-callback package from all systems
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Assume full system compromise and conduct forensic analysis
- Monitor affected systems for signs of unauthorized access or persistence mechanisms
- Review system logs for any suspicious activity during the period the package was installed
- Consider rebuilding affected systems from clean media if full compromise is suspected
Sources
- GitHub Advisory GHSA-p6vh-r7p3-72r9 · GitHub Advisory Database
Cite this entry
"Malware in @0xlr/test-callback." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 31, 2026; last updated July 31, 2026. https://supplychainattack.org/incident/malware-in-0xlr-test-callback-13y0ta
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