parket-helpernpm
Advisory published Updated
parket-helper is a confirmed malicious npm package (MAL-2026-6119) that steals credentials and exfiltrates sensitive data (malicious versions 0.0.1, 5.8.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in parket-helper (npm)
What this malware does
index.js imports child_process and invokes execSync with bash and zsh shells (lines 315 and 331). Without traced reachability, it is not established whether these calls fire at install/require time, fetch external content, or process attacker-controlled input. Helper packages that shell out can be legitimate (build tooling, environment setup) or harmful (droppers, env exfiltration), and the difference depends on what those execSync calls run and when. Manual review of index.js around the cited lines is recommended to determine the trigger context and the command strings being executed.
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for parket-helper (2 malicious versions).
If you installed it — respond
parket-helper 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 parket-helper 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 parket-helper-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.