Malware in thundertiger
Malware was discovered in the npm package thundertiger, resulting in full system compromise of any computer with the package installed or running. The advisory recommends immediate removal and rotation of all secrets and keys from a clean system.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- thundertiger
A malware incident was identified in the npm package thundertiger. According to the GitHub Security Advisory (GHSA-j7j3-pvfq-ph94), 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 critical supply chain attack through a compromised npm package with potential for complete system takeover.
Indicators of compromise
- Packages
- thundertiger
Remediation
- Remove the thundertiger package immediately
- Rotate all secrets, keys, and credentials from a different, uncompromised computer
- Assume full system compromise and conduct forensic analysis
- Monitor affected systems for signs of persistent malware or unauthorized access
- Review system logs for any suspicious activity during the period the package was installed
Sources
- GitHub Advisory GHSA-j7j3-pvfq-ph94 · GitHub Advisory Database
Cite this entry
"Malware in thundertiger." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 12, 2026; last updated August 12, 2026. https://supplychainattack.org/incident/malware-in-thundertiger-1ihpkd
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