Which versions of zagents-message-bus are malicious?

The following PyPI versions of zagents-message-bus are flagged malicious: 1.0.5, 1.0.10, 99.99.99, 99.99.100. Treat any of these as compromised.

How do I remediate zagents-message-bus if I installed it?

zagents-message-bus 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 zagents-message-bus — how do I know if it already compromised me?

If zagents-message-bus 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 zagents-message-bus part of a known attack campaign?

Yes — zagents-message-bus is associated with the GENERIC-standard-pypi-install-pentest 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 zagents-message-bus across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for zagents-message-bus (4 malicious versions).

Malicious package

zagents-message-busPyPI

Advisory published Oct 25, 2026Updated Oct 25, 2026

zagents-message-bus is a confirmed malicious PyPI package (MAL-2026-18296) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.5, 1.0.10, 99.99.99…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in zagents-message-bus (PyPI)

MAL-2026-18296

Immediate action

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

pip uninstall zagents-message-bus

What this malware does

Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.

Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: GENERIC-standard-pypi-install-pentest

Reasons (based on the campaign):

The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.
The package overrides the install command in setup.py to execute malicious code during installation.

Malicious versions

4 flagged

1.0.51.0.1099.99.9999.99.100

Indicators of compromise (SHA-256)

0d1891d5d76adad51e120baa41752f0cc878b243eb400e7a12aba1616d31d1f7

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for zagents-message-bus (4 malicious versions).
If you installed it — respond
zagents-message-bus 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 zagents-message-bus 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. zagents-message-bus on PyPI has been identified as a malicious package (versions 1.0.5, 1.0.10, 99.99.99, 99.99.100 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GENERIC-standard-pypi-install-pentest

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks zagents-message-bus-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