Malware in imillegal1
The npm package imillegal1 contains malware that grants full system compromise to an outside entity. 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
- imillegal1
The npm package imillegal1 has been identified as containing malware. According to the GitHub Advisory (GHSA-98c4-6856-4822), 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, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the initial compromise, as the attacker may have gained full control of the system.\n\nAffected users should treat any system that has run this package as potentially containing persistent malware and take appropriate incident response measures.
Indicators of compromise
- Packages
- imillegal1
Remediation
- Immediately isolate any computer that has installed or run imillegal1 from the network
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Remove the imillegal1 package from the system
- Perform a full forensic analysis and malware scan of affected systems
- Consider the affected system compromised and plan for full rebuild or replacement
- Review access logs and audit trails for any unauthorized activity during the period the package was installed
Sources
- GitHub Advisory GHSA-98c4-6856-4822 · GitHub Advisory Database
Cite this entry
"Malware in imillegal1." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 13, 2026; last updated July 13, 2026. https://supplychainattack.org/incident/malware-in-imillegal1-14eaeb
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