Malware in @whs4/whs4_npm
Malware discovered in the npm package @whs4/whs4_npm. Systems with this package installed or running should be considered fully compromised. All secrets and keys must be rotated from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- @whs4/whs4_npm
A malicious npm package @whs4/whs4_npm has been identified containing malware. Any computer that has this package installed or running should be considered fully compromised, with potential for complete system takeover by an outside entity.\n\nImmediate remediation requires rotating all secrets and keys from a different, unaffected computer. 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 package installation.\n\nThe advisory was published on 2026-07-07 via GitHub Security Advisory GHSA-85fx-62wv-932x.
Indicators of compromise
- Packages
- @whs4/whs4_npm
Remediation
- Immediately rotate all secrets and keys from a different, unaffected computer
- Remove the @whs4/whs4_npm package from all affected systems
- Audit all systems where this package was installed for signs of compromise
- Consider full system reimaging for any computer that had this package installed, as removal may not eliminate all malicious software
- Review access logs and monitor for unauthorized activity on affected systems
Sources
- GitHub Advisory GHSA-85fx-62wv-932x · GitHub Advisory Database
Cite this entry
"Malware in @whs4/whs4_npm." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 7, 2026; last updated July 7, 2026. https://supplychainattack.org/incident/malware-in-whs4-whs4-npm-bgqhnf
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