Malware in @gocortexio/npmgremlinbox-malware-network-indicators
The npm package @gocortexio/npmgremlinbox-malware-network-indicators contained malware that provided full system compromise to attackers. Any computer with this package installed should be considered fully compromised and all secrets rotated from a different machine.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- @gocortexio/npmgremlinbox-malware-network-indicators
A malicious npm package named @gocortexio/npmgremlinbox-malware-network-indicators was published and distributed through the npm registry. The package contained malware capable of achieving full system compromise on any computer where it was installed or executed.\n\nAccording to the GitHub Security Advisory (GHSA-fcqp-56vj-9g8m), systems with this package installed should be considered fully compromised. The advisory recommends immediate rotation of all secrets and keys from a different, unaffected computer.\n\nWhile removal of the package is advised, the advisory notes that because the malware may have granted full control of the system to an external entity, there is no guarantee that package removal alone will eliminate all malicious software that may have been installed as a result.\n\nThe incident was disclosed on 2026-07-20 via GitHub's advisory system.
Indicators of compromise
- Packages
- @gocortexio/npmgremlinbox-malware-network-indicators
Remediation
- Immediately rotate all secrets, keys, and credentials from a different, unaffected computer
- Remove the @gocortexio/npmgremlinbox-malware-network-indicators package from all affected systems
- 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 lateral movement or persistence mechanisms that may have been installed
Sources
- GitHub Advisory GHSA-fcqp-56vj-9g8m · GitHub Advisory Database
Cite this entry
"Malware in @gocortexio/npmgremlinbox-malware-network-indicators." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 20, 2026; last updated July 20, 2026. https://supplychainattack.org/incident/malware-in-gocortexio-npmgremlinbox-malware-network-indicators-2sos41
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