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Malicious package

@yuva2210/okx-poc-preinstallnpm

Advisory published Updated

@yuva2210/okx-poc-preinstall is a confirmed malicious npm package (MAL-2026-16531) that executes malicious code on install (malicious versions 1.0.0, 1.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @yuva2210/okx-poc-preinstall (npm)

MAL-2026-16531
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @yuva2210/okx-poc-preinstall

Malicious versions

2 flagged
1.0.01.0.1

Indicators of compromise (SHA-256)

4c724c99f1210929d6a6fd373898f330a73434b48a36474ad0d4a4ef4929632c

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for @yuva2210/okx-poc-preinstall (2 malicious versions).

  2. If you installed it — respond

    Remove @yuva2210/okx-poc-preinstall 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 @yuva2210/okx-poc-preinstall was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. @yuva2210/okx-poc-preinstall on npm has been identified as a malicious package (versions 1.0.0, 1.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-10657

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks @yuva2210/okx-poc-preinstall-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.

Explore

@yuva2210/okx-poc-preinstall (npm) malicious package — MAL-2026-16531 | O3 Security