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Malicious package

kube-health-toolsPyPI

Malicious code in kube-health-tools (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2026-2327
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall kube-health-tools

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):

  • Downloads and executes a remote executable.

  • backdoor

  • obfuscation

  • covering-tracks

Malicious versions

15 flagged
1.0.01.0.11.0.21.0.31.0.41.0.51.0.61.0.81.0.91.0.101.0.111.0.121.0.131.0.142.0.0

Indicators of compromise (SHA-256)

4d36d5ed9b1bc15c12e89f48c1228a4f6e3aebe558a67d535655e280b25b4440
7e538c73cef5f37655f767c9b0c0bafcc0e41875243137f5d9bc6226a49bf7d9

Detection & response playbook

Credential / info stealer
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for kube-health-tools (15 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging kube-health-tools across your stack and pipelines.

  2. If you installed it — respond

    kube-health-tools 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.

  3. Did it already run?

    If kube-health-tools was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks kube-health-tools before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. kube-health-tools on PyPI has been identified as a malicious package (versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.8, and 7 more flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-03-kube-health-tools

References

Credits

  • Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks kube-health-tools-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

kube-health-tools (PyPI) malicious package — MAL-2026-2327 | O3 Security