Malware in @gocortexio/npmgremlinbox-typosquat-express
Malware discovered in the npm package @gocortexio/npmgremlinbox-typosquat-express, a typosquatting attack. Systems with this package installed should be considered fully compromised.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- @gocortexio/npmgremlinbox-typosquat-express
A malicious npm package named @gocortexio/npmgremlinbox-typosquat-express was identified containing malware. The package name itself appears to be a typosquatting variant, designed to deceive users into installing it instead of a legitimate package.
Any computer that has this package installed or running should be considered fully compromised. The malware grants full control of the affected system to an outside entity.
Immediate remediation requires rotating all secrets and keys stored on affected computers 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 initial compromise.
The advisory was published on 2026-07-20 via GitHub Security Advisory GHSA-rhf7-542w-5vqq.
Indicators of compromise
- Packages
- @gocortexio/npmgremlinbox-typosquat-express
Remediation
- Immediately rotate all secrets, keys, and credentials from a different, uncompromised computer
- Remove the @gocortexio/npmgremlinbox-typosquat-express 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 network traffic for signs of unauthorized access or data exfiltration
- Consider the affected system(s) as potentially fully compromised and plan for complete rebuild if critical systems are involved
Sources
- GitHub Advisory GHSA-rhf7-542w-5vqq · GitHub Advisory Database
Cite this entry
"Malware in @gocortexio/npmgremlinbox-typosquat-express." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 20, 2026; last updated July 20, 2026. https://supplychainattack.org/incident/malware-in-gocortexio-npmgremlinbox-typosquat-express-1vd7nv
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