Malware in @gocortexio/npmgremlinbox-cc-by-sa-3-0-at
Malware was distributed via the npm package @gocortexio/npmgremlinbox-cc-by-sa-3-0-at. Installation of this package results in full system compromise, requiring immediate rotation of all secrets and keys from a separate computer.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- @gocortexio/npmgremlinbox-cc-by-sa-3-0-at
A malicious npm package named @gocortexio/npmgremlinbox-cc-by-sa-3-0-at was identified and published to the npm registry. The package contains malware that grants full control of the host system to an outside entity upon installation or execution.\n\nAny computer with this package installed or running should be considered fully compromised. All secrets, keys, and credentials stored on affected systems must be rotated immediately from a different, uncompromised computer.\n\nWhile 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 initial compromise, given the level of system access obtained by the malware.\n\nThe incident was disclosed via GitHub Advisory GHSA-wx6w-h3xq-gw73 on 2026-07-20.
Indicators of compromise
- Packages
- @gocortexio/npmgremlinbox-cc-by-sa-3-0-at
Remediation
- Immediately remove the package @gocortexio/npmgremlinbox-cc-by-sa-3-0-at from all systems
- Rotate all secrets, API keys, credentials, and signing keys from a separate, uncompromised computer
- Perform a full security audit and malware scan of any system that had this package installed
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider full system reimaging if the package was installed on production or sensitive systems
- Monitor for any suspicious activity or unauthorized access attempts on accounts that may have been compromised
Sources
- GitHub Advisory GHSA-wx6w-h3xq-gw73 · GitHub Advisory Database
Cite this entry
"Malware in @gocortexio/npmgremlinbox-cc-by-sa-3-0-at." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 20, 2026; last updated July 20, 2026. https://supplychainattack.org/incident/malware-in-gocortexio-npmgremlinbox-cc-by-sa-3-0-at-1cgx24
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