Which versions of conn-utils are malicious?

The following PyPI versions of conn-utils are flagged malicious: 1.6.10, 1.6.11. Treat any of these as compromised.

How do I remediate conn-utils if I installed it?

conn-utils 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 conn-utils — how do I know if it already compromised me?

If conn-utils 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 conn-utils part of a known attack campaign?

Yes — conn-utils is associated with the 2025-03-conn-utils 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 conn-utils across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for conn-utils (2 malicious versions).

Malicious package

conn-utilsPyPI

Advisory published Mar 27, 2025Updated Dec 12, 2025

conn-utils is a confirmed malicious PyPI package (MAL-2025-191706) that steals credentials and exfiltrates sensitive data (malicious versions 1.6.10, 1.6.11). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in conn-utils (PyPI)

MAL-2025-191706

Immediate action

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

pip uninstall conn-utils

What this malware does

Already during the installation, the file with slightly obfuscated code is loaded and starts exfiltrating information about the host. It especially targets information about additional indexes configured for pip. Data is exfiltrated using DNS queries

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

Campaign: 2025-03-conn-utils

Reasons (based on the campaign):

exfiltration-generic
obfuscation

Malicious versions

2 flagged

1.6.101.6.11

Indicators of compromise (SHA-256)

9415738fe47d6605e14842900c93f6fe33a33bceb754c53c8f95d48d5b1bbdc8

25be0eaa51dd4c4ba03afd81b4cfad938ceb07dacb0195a9179b46413178e086

35c56d8161b2bd9aa98bd665b045ba4007e48af10d1bfd9b9925abf0afa5a330

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for conn-utils (2 malicious versions).
If you installed it — respond
conn-utils 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 conn-utils 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. conn-utils on PyPI has been identified as a malicious package (versions 1.6.10, 1.6.11 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2025-03-conn-utils

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193)

Detect & block this

O3 blocks conn-utils-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

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