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Malicious package

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)

MAL-2026-14378
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall stillm4ddpocs-rtest-bravo

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

2 flagged
999.9.9999.9.10

Indicators of compromise (SHA-256)

15e4272ba48bc8a81c8a76e7948aed6974b40956c151f05a613456e92690f5f2
fd3e9cff049df53120f980d470f575d8723edc6a3ea29a09b78f7f9aedf4a006

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for stillm4ddpocs-rtest-bravo (2 malicious versions).

  2. 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.

  3. 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

No. stillm4ddpocs-rtest-bravo on npm has been identified as a malicious package (versions 999.9.9, 999.9.10 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-018564IN-MAL-2026-018565

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.

Explore

stillm4ddpocs-rtest-bravo (npm) malicious package — MAL-2026-14378 | O3 Security