node-procmetrics-datanpm
Malicious code in node-procmetrics-data (npm) Remove it immediately and rotate any exposed credentials.
What this malware does
[email protected] ships archive-sender.js which, at install/execution, tars the installer's root filesystem (excluding /proc, /sys, /dev, /tmp, /run) into /tmp/.archive_*.tar.gz, splits the archive into 200MB chunks, and publishes each chunk as a new version of node-procmetrics-data to the public npm registry. Authentication uses a hardcoded npm _authToken shipped in the package as a hex literal XORed with 0x5A at runtime, and the code writes this token into the installer's npm config via npm config set //registry.npmjs.org/:_authToken. The registry is abused as a covert exfiltration channel, and the shipped token is obfuscated to evade static credential scanners. The publish loop also programmatically writes package.json/data.bin and runs npm publish --access public, extending the attacker's registry footprint from the installer's machine.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for node-procmetrics-data (version 1.0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging node-procmetrics-data across your stack and pipelines.
If you installed it — respond
node-procmetrics-data 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 node-procmetrics-data was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks node-procmetrics-data before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks node-procmetrics-data-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.