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Malicious package

escauxnpm

Malicious code in escaux (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-1728
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall escaux

What this malware does

The package escaux was found to contain malicious code.

Malicious versions

1 flagged
999.0.0

Indicators of compromise (SHA-256)

df19c668b3bca8f742ba2ce05bac0d284ea3086972e6f979f9581d601a7fdaaf
91d446ba76e486ebe4a395fe7329ff3b48c1c6b1a7974c083c2438f6764308c2

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 escaux (version 999.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging escaux across your stack and pipelines.

  2. If you installed it — respond

    Remove escaux 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 escaux 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 escaux 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. escaux on npm has been identified as a malicious package (version 999.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01294

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks escaux-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.

escaux (npm) malicious package — MAL-2026-1728 | O3 Security