Malware in @gocortexio/npmgremlinbox-malware-code-obfuscation
Malware was distributed via the npm package @gocortexio/npmgremlinbox-malware-code-obfuscation. Installation results in full system compromise with potential for persistent backdoor access.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- @gocortexio/npmgremlinbox-malware-code-obfuscation
A malicious npm package, @gocortexio/npmgremlinbox-malware-code-obfuscation, was published and distributed to the npm registry. The package contains obfuscated malware code designed to compromise systems upon installation.
Any computer with this package installed or running should be considered fully compromised. The malware grants outside entities potential full control of the affected system. All secrets, keys, and credentials stored on compromised machines should be rotated immediately from a different, unaffected computer.
While the package can be removed, there is no guarantee that removal will eliminate all malicious software or backdoors that may have been installed as a result of the initial compromise. Complete system remediation may be necessary.
Indicators of compromise
- Packages
- @gocortexio/npmgremlinbox-malware-code-obfuscation
Remediation
- Immediately remove the package from all systems
- Rotate all secrets, API keys, and credentials from a different, unaffected computer
- Perform a full security audit and malware scan of any system that had the package installed
- Consider complete system reimaging if full compromise is suspected
- Monitor affected systems for signs of persistent backdoors or lateral movement
- Review package dependencies to identify any systems that may have installed this package transitively
Sources
- GitHub Advisory GHSA-4ch4-g9wf-fg55 · GitHub Advisory Database
Cite this entry
"Malware in @gocortexio/npmgremlinbox-malware-code-obfuscation." 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-code-obfuscation-82euea
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