MAL-2026-5160 Malicious code in bt-signal-utils (PyPI)
Malicious package
Published
MAL-2026-5160 is a malicious package: bt-signal-utils (PyPI). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-5160/ (Markdown: https://insights.sbomify.com/MAL-2026-5160/index.md)
- Package
- bt-signal-utils
- Registry
- PyPI
What is MAL-2026-5160?
MAL-2026-5160 is a malicious package in bt-signal-utils, published on 2 Jun 2026.
Official description
During import, package exfiltrates environment variables and cloud tokens to a hardcoded location.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-06-quant-backtest-helpers
Reasons (based on the campaign):
exfiltration-env-variables
exfiltration-cloud-tokens
What should I do about MAL-2026-5160?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.