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Malicious package

harmony-app-toolkitnpm

harmony-app-toolkit is a confirmed malicious npm package (MAL-2026-14055) that executes malicious code on install (malicious version 22.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in harmony-app-toolkit (npm)

MAL-2026-14055
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall harmony-app-toolkit

What this malware does

The OpenSSF Package Analysis project identified 'harmony-app-toolkit' @ 22.0.0 (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

1 flagged
22.0.0

Indicators of compromise (SHA-256)

fff7c26e7d15d67157e1b61e4279a0441a9c09fe5c1ef5ad94a8c5ce1b320156

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 harmony-app-toolkit (version 22.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging harmony-app-toolkit across your stack and pipelines.

  2. If you installed it — respond

    Remove harmony-app-toolkit 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 harmony-app-toolkit 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 harmony-app-toolkit 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. harmony-app-toolkit on npm has been identified as a malicious package (version 22.0.0 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 harmony-app-toolkit-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.

Malware detection Runtime egress monitoring

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