Malware in @thone33/react-helpers
Malware was discovered in the npm package @thone33/react-helpers, granting full system compromise to attackers. Any computer with this package installed should be considered fully compromised and all secrets and keys rotated immediately from a different machine.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- @thone33/react-helpers
A malicious package named @thone33/react-helpers 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 should be considered fully compromised. All secrets, keys, and credentials stored on affected computers must 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/react-helpers
Remediation
- Immediately remove @thone33/react-helpers from all systems
- Rotate all secrets, keys, and credentials from a different, unaffected computer
- Conduct a full security audit of any system that had this package installed
- Consider rebuilding affected systems from clean media
- Monitor affected systems for signs of persistent compromise
- Review access logs and audit trails for unauthorized activity during the period the package was installed
Sources
- GitHub Advisory GHSA-vxmg-ff8j-2552 · GitHub Advisory Database
Cite this entry
"Malware in @thone33/react-helpers." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 27, 2026; last updated July 27, 2026. https://supplychainattack.org/incident/malware-in-thone33-react-helpers-t8zxm9
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