commandor-libnpm
commandor-lib is a confirmed malicious npm package (MAL-2026-14234) that steals credentials and exfiltrates sensitive data (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in commandor-lib (npm)
What this malware does
The package's scripts/postinstall.js runs automatically on npm install and imports child_process alongside http.request with multiple POST call sites (lines 13, 95, 194). This pattern in a lifecycle hook — spawning subprocesses and posting data to an external HTTP endpoint at install time — is consistent with installer-side reconnaissance and exfiltration to an author-controlled destination and does not correspond to any documented purpose of a generically named library package.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for commandor-lib (version 1.0.0).
If you installed it — respond
commandor-lib is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If commandor-lib was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks commandor-lib-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.