stillm4ddpocs-rtest-bravonpm
Advisory published Updated
stillm4ddpocs-rtest-bravo is a confirmed malicious npm package (MAL-2026-14378) that steals credentials and exfiltrates sensitive data (malicious versions 999.9.9, 999.9.10). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in stillm4ddpocs-rtest-bravo (npm)
What this malware does
package.json declares scripts.preinstall = 'node index.js', so npm install auto-executes index.js. The script collects hostname, username, home directory, local IPv4, INIT_CWD, and the public egress IP (queried from api.ipify.org, icanhazip.com, and ifconfig.me), and reads the consuming project's package.json (INIT_CWD/package.json) to extract name, author, repository, and homepage — identifying which internal package name resolved to this public package. The payload is transmitted to the hardcoded collector da51rv0hb2uc72tg4gvgdepinjcallbk1.oast.fun via HTTPS POST to /poc/<uuid> and, in parallel, hex-encoded and chunked into DNS labels (<idx>-<chunk>.u-<uuid>.<callback>) resolved via dns.resolve, providing a fallback exfiltration channel when outbound HTTP is filtered. The package's self-description as a dependency-confusion research PoC does not change the behavior: installer host and parent-project identifiers are shipped to a third-party Interactsh collector without installer consent.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for stillm4ddpocs-rtest-bravo (2 malicious versions).
If you installed it — respond
stillm4ddpocs-rtest-bravo 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 stillm4ddpocs-rtest-bravo 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 stillm4ddpocs-rtest-bravo-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.