Which versions of xxx-bale are malicious?

The following PyPI versions of xxx-bale are flagged malicious: 1.0.0. Treat any of these as compromised.

How do I remediate xxx-bale if I installed it?

xxx-bale 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 xxx-bale — how do I know if it already compromised me?

If xxx-bale 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 xxx-bale part of a known attack campaign?

Yes — xxx-bale is associated with the 2025-07-cas-base 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 xxx-bale across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for xxx-bale (version 1.0.0).

Malicious package

xxx-balePyPI

Advisory published May 11, 2026Updated May 11, 2026

xxx-bale is a confirmed malicious PyPI package (MAL-2026-3428) that steals credentials and exfiltrates sensitive data (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in xxx-bale (PyPI)

MAL-2026-3428

Immediate action

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

pip uninstall xxx-bale

What this malware does

The package contains code to install remotely stored malware and ensure its persistence. The code is not triggered automatically; it requires a separate trigger.

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

Campaign: 2025-07-cas-base

Reasons (based on the campaign):

Downloads and executes a remote executable.
malware
persistence

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

1109b5dc74c94551027044e54e20f9c1c18f89d53da6af87861ba4773eae1966

Detection & response playbook

Credential / info stealer

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

Campaign

2025-07-cas-base

References

Credits

Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks xxx-bale-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