@pelmnaads/naads-common-loggernpm
Malicious code in @pelmnaads/naads-common-logger (npm) Remove it immediately and rotate any exposed credentials.
What this malware does
The package is published to the public npm registry under @pelmnaads/naads-common-logger with version 19999.0.1 — the canonical dependency-confusion pattern, where an abnormally high version is used to make npm's resolver prefer this public package over a private internal package of the same name. On npm install, a preinstall lifecycle script (preinstall.js:5-9) makes an HTTPS GET to h5nvwrz2815ubw84cpkwhezm5db9z1nq.b.mburpcollab.com with query parameters package=<npm_package_name>&hostname=<os.hostname()>, transmitting the installer's hostname off-host to a Burp Collaborator out-of-band interaction endpoint. The README states this is an authorized security test, but the code path and effect on an unsuspecting installer are identical to a hostile dependency-confusion attack: build hosts silently disclose their identity to a third-party domain during npm install, with no opt-in. Any build system that resolves this package (e.g., an internal Pelmorex pipeline expecting the private @pelmnaads/naads-common-logger) would leak hostname data.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @pelmnaads/naads-common-logger (version 19999.0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @pelmnaads/naads-common-logger across your stack and pipelines.
If you installed it — respond
Remove @pelmnaads/naads-common-logger from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If @pelmnaads/naads-common-logger 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 @pelmnaads/naads-common-logger 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 @pelmnaads/naads-common-logger-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.