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Malicious package

eslint-plugin-react-hooks-publishednpm

Malicious code in eslint-plugin-react-hooks-published (npm) Remove it immediately and rotate any exposed credentials.

MAL-2025-191488
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall eslint-plugin-react-hooks-published

What this malware does

The package eslint-plugin-react-hooks-published was found to contain malicious code.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

The OpenSSF Package Analysis project identified 'eslint-plugin-react-hooks-published' @ 5.0.0 (npm) as malicious.

It is considered malicious because:

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

  • The package executes one or more commands associated with malicious behavior.

Malicious versions

2 flagged
5.0.09.1.0

Indicators of compromise (SHA-256)

bce1e5bec723e41bee8cb39e6f115964c338cfc6e70cacb1783e2f60326f6466
a178cd004c5be7ef97f51f96f456f29d40963d4f5efc71c155a0a030955a7371
647dedd2c8ea8a9cef54b85666b74459095d17369da310d54a0c1960f87dafe6
860bd90c3bcdfcc4ea51584a160b7c87ec1333f810e2e5cbcc1a5b29da4ea8b5

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-react-hooks-published (2 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging eslint-plugin-react-hooks-published across your stack and pipelines.

  2. If you installed it — respond

    Remove eslint-plugin-react-hooks-published 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-react-hooks-published 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-react-hooks-published 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-react-hooks-published on npm has been identified as a malicious package (versions 5.0.0, 9.1.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-35rg-r2fv-8hp3

References

Credits

  • Amazon Inspector · finder
  • OpenSSF: Package Analysis · finder

Detect & block this

O3 blocks eslint-plugin-react-hooks-published-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-react-hooks-published (npm) malicious package — MAL-2025-191488 | O3 Security