Malware in type-check-816d
The npm package type-check-816d was found to contain malware, potentially providing full system compromise to attackers. All systems with this package installed should be considered compromised and require immediate remediation.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- type-check-816d
The npm package type-check-816d was identified as containing malware. According to the GitHub Advisory (GHSA-q7qm-cfrq-fg6g), any computer with 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 malicious 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, given the potential for full system access granted to the attacker.\n\nUsers should treat any system that installed or ran this package as potentially fully compromised and take appropriate incident response measures.
Indicators of compromise
- Packages
- type-check-816d
Remediation
- Immediately remove the type-check-816d package from all systems
- Rotate all secrets, API keys, and credentials from a clean, uncompromised computer
- Perform a full security audit and malware scan of affected systems
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider rebuilding affected systems from clean media if full compromise is suspected
- Check for any unauthorized changes to system files, installed packages, or configurations
Sources
- GitHub Advisory GHSA-q7qm-cfrq-fg6g · GitHub Advisory Database
Cite this entry
"Malware in type-check-816d." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 18, 2026; last updated June 20, 2026. https://supplychainattack.org/incident/malware-in-type-check-816d-oijszd
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