Malware in test-skill-zip
Malware was discovered in the npm package test-skill-zip. Systems with this package installed or running should be considered fully compromised, with all secrets and keys requiring immediate rotation from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- test-skill-zip
The npm package test-skill-zip was found to contain malware. According to the GitHub Advisory (GHSA-qw86-6hcg-cj2j), any computer that has this package installed or running should be considered fully compromised.
Immediate action is required: all secrets and keys stored on affected computers should be rotated immediately from a different, uncompromised system. While the package should be removed, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the package installation, given the potential for full system compromise.
Users should assume that an outside entity may have gained complete control of affected systems.
Indicators of compromise
- Packages
- test-skill-zip
Remediation
- Immediately rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Remove the test-skill-zip package from all affected systems
- Conduct a full security audit and malware scan of any system that had this package installed
- Review system logs and access logs for any unauthorized activity during the period the package was installed
- Consider the affected system(s) potentially compromised and plan for full rebuild if critical infrastructure
Sources
- GitHub Advisory GHSA-qw86-6hcg-cj2j · GitHub Advisory Database
Cite this entry
"Malware in test-skill-zip." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 29, 2026; last updated July 29, 2026. https://supplychainattack.org/incident/malware-in-test-skill-zip-1ongok
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