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Malicious package

scriptstierium11npm

scriptstierium11 is a confirmed malicious npm package (MAL-2025-5727) that executes malicious code on install (malicious versions 20.26.51, 22.26.51). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in scriptstierium11 (npm)

MAL-2025-5727
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall scriptstierium11

What this malware does

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Malicious versions

2 flagged
20.26.5122.26.51

Indicators of compromise (SHA-256)

1e266c41818b3bf14da762f866026f1e266e51c7991db31ff0b165c66cd7ba04
68bcda2c9230ecf518fb64dccafd2be5d73de22a3c87e5e51c13db340060c354
de8d76e60ac4a2fa89e6a27cde15049750f93f7bea768938ba5384aa3ed28506
4568c0c4d8d75744d6494819d93be8d45f7a8bc313013a32d27802fa3ddb4760

Detection & response playbook

Malicious package
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for scriptstierium11 (2 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging scriptstierium11 across your stack and pipelines.

  2. If you installed it — respond

    Remove scriptstierium11 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.

  3. Did it already run?

    If scriptstierium11 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.

  4. How O3 protects you

    O3 blocks scriptstierium11 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

No. scriptstierium11 on npm has been identified as a malicious package (versions 20.26.51, 22.26.51 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-xmg5-m82w-23mqRLMA-2025-04018RLUA-2026-01548

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks scriptstierium11-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.

Explore

scriptstierium11 (npm) malicious package — MAL-2025-5727 | O3 Security