Which versions of joule-sbx-poc are malicious?

The following PyPI versions of joule-sbx-poc are flagged malicious: 0.1.0. Treat any of these as compromised.

How do I remediate joule-sbx-poc if I installed it?

joule-sbx-poc 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 joule-sbx-poc — how do I know if it already compromised me?

If joule-sbx-poc 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 joule-sbx-poc part of a known attack campaign?

Yes — joule-sbx-poc is associated with the 2026-08-joule-btp-extension 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 joule-sbx-poc across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for joule-sbx-poc (version 0.1.0).

Malicious package

joule-sbx-pocPyPI

Advisory published Aug 11, 2026Updated Aug 11, 2026

joule-sbx-poc is a confirmed malicious PyPI package (MAL-2026-13756) that steals credentials and exfiltrates sensitive data (malicious version 0.1.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in joule-sbx-poc (PyPI)

MAL-2026-13756

Immediate action

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

pip uninstall joule-sbx-poc

What this malware does

During installation, the code exfiltrates basic information and exfiltrates more information to a localhost service as well as starts a reverse shell there. It seems to be an internal test that was uploaded to a public repository.

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: 2026-08-joule-btp-extension

Reasons (based on the campaign):

The package contains code to create a reverse shell, allowing an attacker to execute any commands on the victim's machine.
The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.

Malicious versions

1 flagged

0.1.0

Indicators of compromise (SHA-256)

c460336aaf7e02cc7b37e4a0e58df5e22431f9de9ea852af21bb1aa2f333039c

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for joule-sbx-poc (version 0.1.0).
If you installed it — respond
joule-sbx-poc 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 joule-sbx-poc 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. joule-sbx-poc on PyPI has been identified as a malicious package (version 0.1.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-08-joule-btp-extension

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks joule-sbx-poc-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