Which versions of btcli-security are malicious?

The following PyPI versions of btcli-security are flagged malicious: 1.1.0, 1.1.1, 1.1.2. Treat any of these as compromised.

How do I remediate btcli-security if I installed it?

btcli-security 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 btcli-security — how do I know if it already compromised me?

If btcli-security 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 btcli-security part of a known attack campaign?

Yes — btcli-security is associated with the 2026-01-gztensor-cli 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 btcli-security across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for btcli-security (3 malicious versions).

Malicious package

btcli-securityPyPI

Advisory published Jan 8, 2026Updated Jan 8, 2026

btcli-security is a confirmed malicious PyPI package (MAL-2026-162) that steals credentials and exfiltrates sensitive data (malicious versions 1.1.0, 1.1.1, 1.1.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in btcli-security (PyPI)

MAL-2026-162

Immediate action

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

pip uninstall btcli-security

What this malware does

Package clones a legitimate bittensor-cli library and adds a hidden code that downloads a malicious script. The script then downloads an archive with malicious executable in the version appropriate to the system architecture, and ensures persistency by adding automatically started service entries. The remote code is a Go-based inforstealer and backdoor previously attributed to Northkorean cybercrime activities. Additionally, the library is modified to save sensitive keys in plaintext for further extraction

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

Campaign: 2026-01-gztensor-cli

Reasons (based on the campaign):

crypto-related
action-hidden-in-lib-usage
Downloads and executes a remote executable.
clones-real-package
peristence-autorun
typosquatting
obfuscation
backdoor
infostealer

Malicious versions

3 flagged

1.1.01.1.11.1.2

Indicators of compromise (SHA-256)

a4b868f818b1a81f5fccee1967f70c3ff9d75c218d14ec09882c576a9c2c213e

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for btcli-security (3 malicious versions).
If you installed it — respond
btcli-security 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 btcli-security 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. btcli-security on PyPI has been identified as a malicious package (versions 1.1.0, 1.1.1, 1.1.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-01-gztensor-cli

References

Credits

Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks btcli-security-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