Which versions of hash-utils-py are malicious?

The following PyPI versions of hash-utils-py are flagged malicious: 1.0.0, 1.0.5. Treat any of these as compromised.

How do I remediate hash-utils-py if I installed it?

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

If hash-utils-py 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 hash-utils-py part of a known attack campaign?

Yes — hash-utils-py is associated with the 2026-03-hash-utils-py 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 hash-utils-py across my projects, lockfiles, and CI pipelines?

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

Malicious package

hash-utils-pyPyPI

Advisory published Mar 23, 2026Updated Mar 23, 2026

hash-utils-py is a confirmed malicious PyPI package (MAL-2026-2118) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.0, 1.0.5). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in hash-utils-py (PyPI)

MAL-2026-2118

Immediate action

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

pip uninstall hash-utils-py

What this malware does

During importing the module, the code attempts to exfiltrate sensitive Telegram's client session files.

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

Campaign: 2026-03-hash-utils-py

Reasons (based on the campaign):

exfiltration-credentials

Malicious versions

2 flagged

1.0.01.0.5

Indicators of compromise (SHA-256)

4177b7c46ecbfa35116b35a2a491107d0514cd6551a447b7213ef6e097172939

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for hash-utils-py (2 malicious versions).
If you installed it — respond
hash-utils-py 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 hash-utils-py 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. hash-utils-py on PyPI has been identified as a malicious package (versions 1.0.0, 1.0.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-03-hash-utils-py

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks hash-utils-py-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