Malware in imillegal5
The npm package imillegal5 contains malware that grants full control of affected systems 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
- imillegal5
The npm package imillegal5 has been identified as containing malware. According to the GitHub Advisory (GHSA-p4r5-cmp8-4px3), any computer that has this package installed or running should be considered fully compromised.\n\nThe advisory warns 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 initial compromise, given that the attacker may have gained full control of the system.\n\nAffected users should treat their systems as potentially fully compromised and take appropriate incident response measures.
Indicators of compromise
- Packages
- imillegal5
Remediation
- Immediately isolate affected systems from the network
- Rotate all secrets, keys, and credentials from a different, uncompromised computer
- Remove the imillegal5 package from all affected systems
- Conduct a full forensic investigation of affected systems
- Monitor for signs of persistent malware or backdoors
- Consider full system reimaging if sensitive data was present
Sources
- GitHub Advisory GHSA-p4r5-cmp8-4px3 · GitHub Advisory Database
Cite this entry
"Malware in imillegal5." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 13, 2026; last updated July 13, 2026. https://supplychainattack.org/incident/malware-in-imillegal5-cdq3eb
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