k8s-node-healthPyPI
Advisory published Updated
k8s-node-health is a confirmed malicious PyPI package (MAL-2026-2430) that steals credentials and exfiltrates sensitive data (malicious versions 1.2.0, 1.3.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in k8s-node-health (PyPI)
What this malware does
During import, the code download and starts remote executable that later connects to a C2 server, likely establishing a reverse tunnel. After executing the remote binary, the code performs covering-tracks actions by removing the binary from disk, and - depending on version - modifying the package code. The dropper code is either a Python script, or a compiled binary with obfuscated location of the remote binary and config for it.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-03-kube-health-tools
Reasons (based on the campaign):
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Downloads and executes a remote executable.
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backdoor
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obfuscation
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covering-tracks
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for k8s-node-health (2 malicious versions).
If you installed it — respond
k8s-node-health 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 k8s-node-health 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 k8s-node-health-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.