Which versions of pyutils-helper are malicious?

The following PyPI versions of pyutils-helper are flagged malicious: 1.2.3, 1.2.4. Treat any of these as compromised.

How do I remediate pyutils-helper if I installed it?

pyutils-helper 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.

I already installed pyutils-helper — how do I know if it already compromised me?

If pyutils-helper 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 pyutils-helper part of a known attack campaign?

Yes — pyutils-helper is associated with the 2026-03-pyutils-helper 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 pyutils-helper across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for pyutils-helper (2 malicious versions).

Malicious package

pyutils-helperPyPI

Advisory published Mar 8, 2026Updated Mar 8, 2026

pyutils-helper is a confirmed malicious PyPI package (MAL-2026-1281) that steals credentials and exfiltrates sensitive data (malicious versions 1.2.3, 1.2.4). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in pyutils-helper (PyPI)

MAL-2026-1281

Immediate action

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

pip uninstall pyutils-helper

What this malware does

Importing the module starts a silent cryptocurrency mining in the background for a hardcoded wallet.

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

Campaign: 2026-03-pyutils-helper

Reasons (based on the campaign):

cryptominer

Malicious versions

2 flagged

1.2.31.2.4

Indicators of compromise (SHA-256)

8b1055c03077c874d21f69aa9403cebd070e2b7398e27b44310c977219bc0e7a

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for pyutils-helper (2 malicious versions).
If you installed it — respond
pyutils-helper 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.
Did it already run?
If pyutils-helper 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. pyutils-helper on PyPI has been identified as a malicious package (versions 1.2.3, 1.2.4 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-03-pyutils-helper

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193) · reporter

Detect & block this

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

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database