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Part of a larger attack: 2024-08-embeds-RealtekHDAudioManager published 40 malicious packages. See the full campaign →
Malicious package

pycblinesPyPI

Advisory published Updated

pycblines is a confirmed malicious PyPI package (MAL-2024-11669) that steals credentials and exfiltrates sensitive data (malicious version 0.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in pycblines (PyPI)

MAL-2024-11669
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall pycblines

What this malware does

Importing a module starts downloading and executing an infostealer, widely identified by AV/sandboxes.

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

Campaign: 2024-08-embeds-RealtekHDAudioManager

Reasons (based on the campaign):

  • infostealer

  • Downloads and executes a remote executable.

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

1be6fdb3df3d77c79b16028da8ef6a0153e3d199b8cfdfcef52406a248efbe47
19442f090f7b47c44b9995a5434b117f965b6b9627712dc20eda52eed982b732
003ff4ad180c7d33db185b8c29ceca2689909864b5e36c450eb8125290365f99
8c55e5679fb06d6313c63b7c8ed1b5e9cd8903e2f0e306945f43e9f340a63534
7bce62bf17a19ab44f8315a15effce85f4c28a018961e20c381e0b6c0270b594

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for pycblines (version 0.0.1).

  2. If you installed it — respond

    pycblines 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 pycblines 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. pycblines 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-2024-111262024-08-embeds-RealtekHDAudioManagerRLUA-2026-00623

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks pycblines-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

pycblines (PyPI) malicious package — MAL-2024-11669 | O3 Security