Malware in crypto-hasher
Malware discovered in the npm package crypto-hasher. Installation results in full system compromise with potential for complete attacker control and credential theft.
- Disclosed
- Last updated
- Blast radius
- Any system with crypto-hasher installed; full system compromise possible
- Ecosystems
- Attack vectors
- Affected entities
- crypto-hashernpm package
The npm package crypto-hasher has been identified as containing malware. According to the GitHub Advisory (GHSA-886f-w6pq-7w7j), any system with this package installed or running should be considered fully compromised.\n\nThe advisory recommends immediate action: all secrets and keys stored on affected computers should be rotated 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 control by an external entity.\n\nAffected users should treat any computer that has run this package as potentially fully compromised and take appropriate incident response measures.
Indicators of compromise
- Packages
- crypto-hasher
Remediation
- Immediately isolate any system that has installed or run crypto-hasher
- Rotate all secrets, API keys, and credentials from a clean, uncompromised system
- Remove the crypto-hasher package from all affected systems
- Conduct a full forensic investigation of affected systems for additional malware or persistence mechanisms
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider full system rebuild or replacement if full compromise is suspected
Sources
- GitHub Advisory GHSA-886f-w6pq-7w7j · GitHub Advisory Database
Cite this entry
"Malware in crypto-hasher." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 15, 2026; last updated July 15, 2026. https://supplychainattack.org/incident/malware-in-crypto-hasher-1n8xdr
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