@grabcad/user-license@2.0.1
Malicious code in @grabcad/user-license (npm)
Analysis
This package is a "compatibility shim" whose postinstall hook runs beacon.cjs, which sends an HTTP POST to hxxp://185[.]158[.]107[.]175:8787/_ah/dc with a JSON body containing the package name, the machine hostname, the install directory (__dirname), the working directory and the npm/node user agent, plus an x-beacon-package header. index.js repeats the same callback whenever the module is required and exports a no-op Proxy so that importing code does not crash. The callback is the only behaviour in the package: no environment variables, credentials, tokens or file contents are read or transmitted, and no second-stage payload is downloaded or executed. The README describes the package as an authorized dependency-confusion test that only reports that it was installed.
- analyzed by
- Leitwacht
- first seen
- Oct 22, 2026, 11:57 PM
- analyzed
- Oct 22, 2026, 11:58 PM
Related advisories
- @grabcad/user-license@3.0.0 same package
- @grabcad/grabcad-shop-shared@1.0.1
- @grabcad/grabcad-shop-shared@1.1.0
- @grabcad/grabcad-shop-shared@2.0.0
- @grabcad/grabcad-shop-shared@1.0.0
- @grabcad/grabcad-shop-shared@0.0.0-stage
- @blueskydataplatform/shared-ui@99.0.3
- @blueskydataplatform/shared-ui@0.1.0
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.