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Malicious package

eslint-plugin-superhuman-custom-rulesnpm

Malicious code in eslint-plugin-superhuman-custom-rules (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-1729
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall eslint-plugin-superhuman-custom-rules

What this malware does

The package eslint-plugin-superhuman-custom-rules was found to contain malicious code.

Malicious versions

1 flagged
19.1.0

Indicators of compromise (SHA-256)

33930f95b9ce398f1b22c5fc9efc406943a87be9fab9c864c3836444d6dc6643
2e50258e14acd3712854f3059d043b8c4982563ab8d401555b253702a3212279

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 eslint-plugin-superhuman-custom-rules (version 19.1.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging eslint-plugin-superhuman-custom-rules across your stack and pipelines.

  2. If you installed it — respond

    Remove eslint-plugin-superhuman-custom-rules 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 eslint-plugin-superhuman-custom-rules 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 eslint-plugin-superhuman-custom-rules 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. eslint-plugin-superhuman-custom-rules on npm has been identified as a malicious package (version 19.1.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01298

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks eslint-plugin-superhuman-custom-rules-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.

eslint-plugin-superhuman-custom-rules (npm) malicious package — MAL-2026-1729 | O3 Security