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Malicious package

via-city-tools-m-particlenpm

Malicious code in via-city-tools-m-particle (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-5456
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall via-city-tools-m-particle

What this malware does

The package exports an empty object (module.exports = {}) and has no functionality of its own. Its only substantive effect is to declare a dependency on ltidisafe pinned to the off-registry tarball URL https://ltidi.storage.googleapis.com/depenconf/ltidisafe-2.7.6.tgz. Installing this package causes npm to fetch and install that arbitrary tarball — hosted in a generic Google Cloud Storage bucket with no registry integrity guarantees and no publisher binding — and any lifecycle scripts (preinstall/install/postinstall) inside it run automatically on the installer's machine. The package metadata is hollow (empty description, empty author, no repository), and the unscoped name via-city-tools-m-particle resembles legitimate scoped tooling, consistent with a dependency-confusion lure whose only purpose is to smuggle the off-registry tarball into target build environments.

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
99.9.1

Indicators of compromise (SHA-256)

154a8595ab694cc8aa24f5b7f09922ac9a6a26fe8c5a22c6297a64d129a11cff
bc5c4f690e0399edc4408e7729291803db7916ed764bcfe16988f4cdccd5cfc1
1b35056794033f2fabe597e51faa2ec27668923b74527f12fbf861bb3e941ca8
6664080def718275372667f11d697e2cc4006fd7d6da7fa250824ca2f5caf69f
b81f72ba17fba403fde8c131b6eebc535560145fd64a19ea22b4f2a6806cf07d

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 via-city-tools-m-particle (version 99.9.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging via-city-tools-m-particle across your stack and pipelines.

  2. If you installed it — respond

    Remove via-city-tools-m-particle 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 via-city-tools-m-particle 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 via-city-tools-m-particle 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. via-city-tools-m-particle on npm has been identified as a malicious package (version 99.9.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-005064IN-MAL-2026-005063GHSA-6wg4-xxqc-hw9hRLMA-2026-05350RLUA-2026-05644

References

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks via-city-tools-m-particle-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.