Which versions of bt-signal-utils are malicious?

The following PyPI versions of bt-signal-utils are flagged malicious: 1.0.0, 1.0.1. Treat any of these as compromised.

How do I remediate bt-signal-utils if I installed it?

bt-signal-utils 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 bt-signal-utils — how do I know if it already compromised me?

If bt-signal-utils 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 bt-signal-utils part of a known attack campaign?

Yes — bt-signal-utils is associated with the 2026-06-quant-backtest-helpers, RLMA-2026-02095, RLUA-2026-05385 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 bt-signal-utils across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for bt-signal-utils (2 malicious versions).

Malicious package

bt-signal-utilsPyPI

Advisory published Jun 2, 2026Updated Jul 23, 2026

bt-signal-utils is a confirmed malicious PyPI package (MAL-2026-5160) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.0, 1.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in bt-signal-utils (PyPI)

MAL-2026-5160

Immediate action

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

pip uninstall bt-signal-utils

What this malware does

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

Malicious versions

2 flagged

1.0.01.0.1

Indicators of compromise (SHA-256)

d56152c37c3a078b771d2578dd86495783b51b886c96aa7ebb66a7ec36d72a24

914f42d7d535bbbc3513fb948666d930abf08061dbb0c51ca4f8dc70e228fd0f

0731a160f0f53df6d3cee4265b76b98c5a4d4aea4f5e305d26ff7cbd192a2eb0

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for bt-signal-utils (2 malicious versions).
If you installed it — respond
bt-signal-utils 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 bt-signal-utils 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. bt-signal-utils on PyPI has been identified as a malicious package (versions 1.0.0, 1.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-06-quant-backtest-helpersRLMA-2026-02095RLUA-2026-05385

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193) · reporter
ReversingLabs · finder

Detect & block this

O3 blocks bt-signal-utils-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