Malware in ulebkit
The npm package ulebkit contained malware that provided full system compromise to attackers. Any computer with the package installed or running should be considered fully compromised.
- Disclosed
- Last updated
- Blast radius
- Any system with ulebkit installed or running
- Ecosystems
- Attack vectors
- Affected entities
- ulebkit
The npm package ulebkit was found to contain malware. According to the GitHub Advisory (GHSA-w4vj-4cxr-299x), any computer that has this package installed or running should be considered fully compromised.\n\nThe advisory recommends that all secrets and keys stored on affected computers be rotated immediately from a different, uncompromised system. While the package should be removed, the advisory notes that full control of the computer may have been given to an outside entity, meaning there is no guarantee that removing the package will remove all malicious software resulting from the installation.\n\nThis represents a critical supply chain attack through a malicious npm package with complete system compromise capabilities.
Indicators of compromise
- Packages
- ulebkit
Remediation
- Remove the ulebkit package immediately
- Rotate all secrets and keys from a different, uncompromised computer
- Assume full system compromise and audit all system activity
- Consider the affected system potentially untrustworthy even after package removal
- Scan for and remove any additional malicious software that may have been installed
Sources
- GitHub Advisory GHSA-w4vj-4cxr-299x · GitHub Advisory Database
Cite this entry
"Malware in ulebkit." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 18, 2026; last updated August 18, 2026. https://supplychainattack.org/incident/malware-in-ulebkit-41ya6t
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