@web-3d-tool/sdk is a near-empty package (trivial 35-byte index.js, empty author/description metadata) whose only effect on install is to pull in a dependency declared as a raw tarball URL: "ltidisafe": "https://ltidi.storage.googleapis.com/depenconf/ltidisafe-2.3.1.tgz" (package.json line 9). The bucket ltidi.storage.googleapis.com is unrelated to the @web-3d-tool namespace, is not a versioned npm registry artifact, and the bucket owner can mutate the served tarball at any time without changing this package's version. Any lifecycle hooks (preinstall/install/postinstall) inside the fetched tarball execute on npm install of this package, giving the bucket owner arbitrary code execution on the installer's machine. The combination of hollow lure package + tarball-URL dependency + unrelated anonymous storage bucket + missing publisher metadata is the namespace-abuse dropper shape — the package itself is not the payload, the resolved dependency is.

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.