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Part of a larger attack: @rbapp published 9 malicious packages. See the full campaign →
Malicious package

@rbapp/i18nnpm

Advisory published Updated

@rbapp/i18n is a confirmed malicious npm package (MAL-2025-41928) that executes malicious code on install (malicious version 2.2.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @rbapp/i18n (npm)

MAL-2025-41928
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @rbapp/i18n

What this malware does

The package communicates with a domain associated with malicious activity.

Malicious versions

1 flagged
2.2.2

Indicators of compromise (SHA-256)

4824ed9480199ceb809aa00525fbe77a016ef3d11c9c680b7bf1db3f1f50fa17

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for @rbapp/i18n (version 2.2.2).

  2. If you installed it — respond

    Remove @rbapp/i18n 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 @rbapp/i18n 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. @rbapp/i18n on npm has been identified as a malicious package (version 2.2.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-04871

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks @rbapp/i18n-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

@rbapp/i18n (npm) malicious package — MAL-2025-41928 | O3 Security