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Malicious package

dlibexPyPI

Malicious code in dlibex (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2024-11579
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall dlibex

What this malware does

When importing the module and a specific file exists in the current directory, obfuscated code downloads and starts the next stage of obfuscated code (cstealer infostealer)

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2024-10-pyutiltool

Reasons (based on the campaign):

  • infostealer

  • obfuscation

  • infostealer:cstealer

Malicious versions

2 flagged
1.111.12

Indicators of compromise (SHA-256)

da5b6ebfd0a5dd68ce049c1b23b17538d9dd49ad3f8213592d2a256d302b11a9
354b2659a697b8e1572736c9a422924475846315fe21a4ef9fc7479c4efabee2
334235bba91ccf5f6b15b680b7e549e46b7de4a3007d30337b3e72a5124048b6
badf29842bedf65fa9148f5ec86cdc6b9a087fbaeb4e57f8b7b67a5f91e5b375
b91d21cc79df4f5479c74ff857826cf3163895cd87a2ddcec80e3d5569abd8d3

Detection & response playbook

Credential / info stealer
  1. Find it

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

  2. If you installed it — respond

    dlibex 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 dlibex 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 dlibex 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. dlibex on PyPI has been identified as a malicious package (versions 1.11, 1.12 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-110292024-10-pyutiltoolRLUA-2026-00278

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks dlibex-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

dlibex (PyPI) malicious package — MAL-2024-11579 | O3 Security