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Part of a larger attack: @zettle-bo published 25 malicious packages. See the full campaign →
Malicious package

@zettle-bo/bank-settingsnpm

Advisory published Updated

@zettle-bo/bank-settings is a confirmed malicious npm package (MAL-2023-8191) that executes malicious code on install (malicious version 35.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @zettle-bo/bank-settings (npm)

MAL-2023-8191
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @zettle-bo/bank-settings

What this malware does

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.

Malicious versions

1 flagged
35.0.0

Indicators of compromise (SHA-256)

c565236f7920d5e91efa88abc8e86c0b09894525e980f20ca14654a57126c8b3
2efc30be4a3b05ba33706d5af2b9c7fe8567d03b6e28a895a327e57bde0d92c3
6df61d0c7b2e3336604ada68fc62bfb591328abc8a060e8e143d79a29d730af1

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for @zettle-bo/bank-settings (version 35.0.0).

  2. If you installed it — respond

    Remove @zettle-bo/bank-settings 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 @zettle-bo/bank-settings 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. @zettle-bo/bank-settings on npm has been identified as a malicious package (version 35.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-x4fw-q4vp-7h2fRLMA-2024-00234

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks @zettle-bo/bank-settings-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

@zettle-bo/bank-settings (npm) malicious package — MAL-2023-8191 | O3 Security