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Part of a larger attack: @yane88 published 19 malicious packages. See the full campaign →
Malicious package

@yane88/workbuddy-02npm

Advisory published Updated

@yane88/workbuddy-02 is a confirmed malicious npm package (MAL-2026-15666) that executes malicious code on install (malicious versions 1.0.0, 1.0.1, 1.0.2…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @yane88/workbuddy-02 (npm)

MAL-2026-15666
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @yane88/workbuddy-02

What this malware does

The package was found to contain malicious code or consuming dependency that contains malicious code

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

4 flagged
1.0.01.0.11.0.21.0.3

Indicators of compromise (SHA-256)

5f0760e3b931f8bb1f56af0e82247b69496493e656eda5c593b041e3d994eacf
1067553b82d11f9e2a38c4d59dd3b450f722d5572fc8bb43765d5093f68cc23f
5a32ebea3ec47d7854248c52198f1131ac04ab8e5dc79664e92c1da73ca4bd69
c47429d06e4a5dbc8cd1a5cb3cc3650cb4cceea6a3791ebf0d6d2cc13fe7ebfc
ee0a64c7d687f32b23bc3d3dc9c31c99cf51680fc7e2f2ed837c8e27cc42fe2d

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for @yane88/workbuddy-02 (4 malicious versions).

  2. If you installed it — respond

    Remove @yane88/workbuddy-02 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 @yane88/workbuddy-02 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. @yane88/workbuddy-02 on npm has been identified as a malicious package (versions 1.0.0, 1.0.1, 1.0.2, 1.0.3 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-677c-x838-7qj5IN-MAL-2026-019574IN-MAL-2026-019572IN-MAL-2026-019571IN-MAL-2026-019575

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @yane88/workbuddy-02-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

@yane88/workbuddy-02 (npm) malicious package — MAL-2026-15666 | O3 Security