efghr-honeybee-sdkPyPI
Advisory published Updated
efghr-honeybee-sdk is a confirmed malicious PyPI package (MAL-2026-2005) that steals credentials and exfiltrates sensitive data (malicious versions 0.1.0, 0.2.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in efghr-honeybee-sdk (PyPI)
What this malware does
During installation, package attempts to modify LLM configuration files to provide a backdoor instruction for further control over an AI agent.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-03-flyio-token-client-efgh
Reasons (based on the campaign):
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llm-threat
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The package overrides the install command in setup.py to execute malicious code during installation.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for efghr-honeybee-sdk (2 malicious versions).
If you installed it — respond
efghr-honeybee-sdk 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 efghr-honeybee-sdk 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
Campaign
References
Credits
- Kamil Mańkowski (kam193) · analyst
Detect & block this
O3 blocks efghr-honeybee-sdk-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.