Malware in crypto-promiser
The npm package crypto-promiser contained malware that provided full system compromise to attackers. Any computer with this package installed should be considered fully compromised and all secrets and keys rotated from a different system.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- crypto-promiser
The npm package crypto-promiser was found to contain malware. According to the GitHub Advisory (GHSA-pgcc-398f-7cv2), 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 computer. While the package should be removed, the advisory notes that full control of the computer may have been given to an outside entity, meaning there is no guarantee that removing the package will remove all malicious software resulting from the installation.\n\nThis represents a critical supply chain attack through a compromised npm package with potential for complete system takeover.
Indicators of compromise
- Packages
- crypto-promiser
Remediation
- Immediately isolate any computer that has crypto-promiser installed from the network
- Rotate all secrets, keys, and credentials from a different, uncompromised computer
- Remove the crypto-promiser package from all systems
- Perform a full security audit and malware scan on affected systems
- Review system logs for any unauthorized access or activity during the period the package was installed
- Consider full system reimaging if complete compromise is suspected
Sources
- GitHub Advisory GHSA-pgcc-398f-7cv2 · GitHub Advisory Database
Cite this entry
"Malware in crypto-promiser." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 10, 2026; last updated July 10, 2026. https://supplychainattack.org/incident/malware-in-crypto-promiser-1mte0k
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