spectral-net-probenpm
Advisory published Updated
spectral-net-probe is a confirmed malicious npm package (MAL-2026-18368) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.1, 1.0.4, 1.0.10). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in spectral-net-probe (npm)
What this malware does
spectral-net-probe has no functional code. Versions 1.0.1 and 1.0.4 have a postinstall script that runs node index.js on npm install, which sends an HTTPS GET to a Cloudflare quick tunnel (https://nobody-johnston-with-enabling.trycloudflare.com/aa?x=1 and https://imaging-amazing-trunk-surgeons.trycloudflare.com/marker104?v=1). Version 1.0.10 runs when the package is loaded: it fetches /api/modules/ECT-654321 from http://154.57.164.64:30664 and http://127.0.0.1:3000, reads up to ten local files whose paths the reply lists in data.cargo_hold, and PUTs the first 400 characters of their contents to /api/modules/ECT-987654 on both hosts. It was published by the npm account kristol07, which published two more packages the same day (phantom-chartwinds and phantom-powder-keg, placeholder versions only so far).
[email protected] is an active supply-chain attack. package.json declares a postinstall hook node -e "require('.').sync()" that loads index.js on npm install. index.js runs a top-level loop over a hardcoded base list including the bare-IP endpoint 154.57.164.64:30664, GETs /api/modules/ECT-654321 to receive a comma-separated list of filesystem paths, reads each path with fs.readFileSync, and PUTs the file contents back to /api/modules/ECT-987654 on the same remote. The remote operator chooses which files on the installer's host are read and uploaded. The uploaded body is wrapped in a fake ecto_module YAML manifest with fields like cargo_hold and power_level: SYNCED, and the package self-describes as a 'local module config sync helper' — a cover story disguising arbitrary file exfiltration as benign module-sync telemetry. The hardcoded bare-IP destination is not associated with any legitimate publisher infrastructure.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for spectral-net-probe (3 malicious versions).
If you installed it — respond
spectral-net-probe 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 spectral-net-probe 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
- InvisiRisk, Inc. · finder
Detect & block this
O3 blocks spectral-net-probe-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.