Which versions of nowcl are malicious?

The following PyPI versions of nowcl are flagged malicious: 0.1.0. Treat any of these as compromised.

How do I remediate nowcl if I installed it?

Remove nowcl 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.

I already installed nowcl — how do I know if it already compromised me?

If nowcl 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.

Is nowcl part of a known attack campaign?

Yes — nowcl is associated with the RLMA-2024-04199, RLUA-2024-08573 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find nowcl across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for nowcl (version 0.1.0).

Malicious package

nowclPyPI

nowcl is a confirmed malicious PyPI package (MAL-2024-5417) that executes malicious code on install (malicious version 0.1.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in nowcl (PyPI)

MAL-2024-5417

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

pip uninstall nowcl

Malicious versions

1 flagged

0.1.0

Indicators of compromise (SHA-256)

a25875a665f62a913bd9ca43c26b8390b10893afc43f20ef51205b1b9de9c206

ceb172e9d19be50301e4accd4e853020b44b66b5b6776143bbedfaace05e62f1

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for nowcl (version 0.1.0).
If you installed it — respond
Remove nowcl 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.
Did it already run?
If nowcl 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. nowcl on PyPI has been identified as a malicious package (version 0.1.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-04199RLUA-2024-08573

Credits

ReversingLabs · finder

Detect & block this

O3 blocks nowcl-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.

Malware detection Runtime egress monitoring

Explore

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