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Malicious package

fluent-plugin-enhance-k8s-metadataRubyGems

Malicious code in fluent-plugin-enhance-k8s-metadata (RubyGems) Remove it immediately and rotate any exposed credentials.

MAL-2023-1424
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall fluent-plugin-enhance-k8s-metadata

What this malware does

The OpenSSF Package Analysis project identified 'fluent-plugin-enhance-k8s-metadata' @ 5.0.1 (rubygems) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.

Malicious versions

1 flagged
5.0.1

Indicators of compromise (SHA-256)

537d9d482d3e99b2757022edbff8c81e9a9bd9bf73f272f10634d355c813e635

Detection & response playbook

Malicious package
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for fluent-plugin-enhance-k8s-metadata (version 5.0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging fluent-plugin-enhance-k8s-metadata across your stack and pipelines.

  2. If you installed it — respond

    Remove fluent-plugin-enhance-k8s-metadata from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If fluent-plugin-enhance-k8s-metadata 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 fluent-plugin-enhance-k8s-metadata 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. fluent-plugin-enhance-k8s-metadata on RubyGems has been identified as a malicious package (version 5.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Credits

  • OpenSSF: Package Analysis · finder

Detect & block this

O3 blocks fluent-plugin-enhance-k8s-metadata-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

fluent-plugin-enhance-k8s-metadata (RubyGems) malicious package — MAL-2023-1424 | O3 Security