@wxwxtest/testrrrddnpm
Advisory published Updated
@wxwxtest/testrrrdd is a confirmed malicious npm package (MAL-2026-17704) that steals credentials and exfiltrates sensitive data (malicious versions 0.0.1, 0.1.0, 1.0.0…). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in @wxwxtest/testrrrdd (npm)
What this malware does
The package ships a postinstall script (scripts.postinstall runs node beacon.cjs) and a top-level require('./beacon.cjs').fire() in index.js that POST installer host metadata — hostname, install path, cwd, Node version, and package name — to the hardcoded plain-HTTP bare-IP endpoint http://185.158.107.175:8787/_ah/dc. The exfiltration fires automatically both on npm install and on any require() of the package. index.js otherwise exports a Proxy returning no-op functions for any property access, so the package has no legitimate functionality; its sole effect is the callback to the hardcoded endpoint. The destination is not associated with any publisher domain and is unrelated to the self-described 'compatibility shim' purpose. The shape (stub Proxy export + install/require-time beacon to a bare-IP collector) is a dependency-confusion / typosquat proof-of-installation beacon.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for @wxwxtest/testrrrdd (7 malicious versions).
If you installed it — respond
@wxwxtest/testrrrdd 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 @wxwxtest/testrrrdd 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 @wxwxtest/testrrrdd-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.