Malware in @bcs-mi-ui/message-block
Malware discovered in the npm package @bcs-mi-ui/message-block. Systems with this package installed are considered fully compromised and require immediate remediation.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- @bcs-mi-ui/message-block
A malicious package, @bcs-mi-ui/message-block, was published to npm and contains malware. Any computer with this package installed or running should be considered fully compromised.\n\nThe advisory indicates that all secrets and keys stored on affected computers should be rotated immediately 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 compromise.\n\nThis is a critical supply chain attack affecting the npm ecosystem through a compromised package.
Indicators of compromise
- Packages
- @bcs-mi-ui/message-block
Remediation
- Immediately remove the @bcs-mi-ui/message-block package from all systems
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Assume full system compromise and conduct forensic analysis
- Review system logs for unauthorized access or activity
- Consider full system rebuild or replacement if critical infrastructure is affected
- Audit all systems that may have had access to secrets or sensitive data while the package was installed
Sources
- GitHub Advisory GHSA-j6mx-7p76-j3h7 · GitHub Advisory Database
Cite this entry
"Malware in @bcs-mi-ui/message-block." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 15, 2026; last updated July 15, 2026. https://supplychainattack.org/incident/malware-in-bcs-mi-ui-message-block-zttb3y
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