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Malicious package

rbx-cookiePyPI

Malicious code in rbx-cookie (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2025-41733
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall rbx-cookie

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

d2006eae719e2106e97e20671a934fab6774e20f255501ef8a1c383f45f5cf57

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 rbx-cookie (version 0.0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging rbx-cookie across your stack and pipelines.

  2. If you installed it — respond

    Remove rbx-cookie 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 rbx-cookie 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 rbx-cookie 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. rbx-cookie on PyPI has been identified as a malicious package (version 0.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-04228

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks rbx-cookie-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.

rbx-cookie (PyPI) malicious package — MAL-2025-41733 | O3 Security