Malware in @thone33/core-utils
Malware was discovered in the npm package @thone33/core-utils, granting full system compromise to attackers. Any computer with this package installed or running should be considered fully compromised.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- @thone33/core-utils
A malicious package named @thone33/core-utils was published to npm and contains malware that provides full control of affected systems to an outside entity.\n\nSystems with this package installed or running are considered fully compromised. All secrets and keys stored on affected computers should be rotated immediately from a different, unaffected computer.\n\nWhile the package should be removed, complete removal of all malicious software cannot be guaranteed due to the level of system access granted by the malware. A full security audit and potential system rebuild may be necessary for affected systems.
Indicators of compromise
- Packages
- @thone33/core-utils
Remediation
- Immediately remove @thone33/core-utils from all systems
- Rotate all secrets, API keys, and credentials from a clean, unaffected computer
- Conduct a full security audit of any system that had this package installed
- Consider rebuilding affected systems from clean media
- Monitor for signs of unauthorized access or data exfiltration
- Check for persistence mechanisms or additional malware installed by this package
Sources
- GitHub Advisory GHSA-w2wf-8vp4-86mq · GitHub Advisory Database
Cite this entry
"Malware in @thone33/core-utils." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 27, 2026; last updated July 27, 2026. https://supplychainattack.org/incident/malware-in-thone33-core-utils-1owlhg
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