MAL-2026-13732
Malicious code in joule-btp-extension (PyPI)
Details
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## Source: kam193 (21a7a58b1f32893cafb7cd9a1b452c5e9138b8fa89c43ebef1b3722205f60596) 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.
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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.
## Source: ossf-package-analysis (65193272cd9bd3b918d955bb215650b6b89b171e458b3385819f989bc1128049) The OpenSSF Package Analysis project identified 'joule-btp-extension' @ 0.1.6 (pypi) as malicious.
It is considered malicious because:
- The package communicates with a domain associated with malicious activity.
Are you affected?
Enter the version of the package you're using.
Affected packages
No fixed version published yet for joule-btp-extension (pip). Pin to a known-safe version or switch to an alternative.