@ecg-internal/media-util-js-lib@99.0.1

Summary

The package publishes to the public npm registry under the scoped name @ecg-internal/media-util-js-lib, which resembles an internal namespace. It ships no real functionality — the main entry exports a Proxy stub returning no-ops for every property, described as a 'Compatibility shim.' Both package.json postinstall (node beacon.cjs) and the main module invoke fire() in beacon.cjs, which POSTs the installer's hostname (os.hostname()), install path (__dirname), current working directory (process.cwd()), Node version, and package name to the hardcoded bare-IP endpoint http://185.158.107.175:8787/_ah/dc over cleartext HTTP. The beacon fires on npm install without user action and again whenever the module is required, so any internal build system misconfigured to resolve this public artifact for an @ecg-internal/* dependency transmits identifying host and path information to the attacker-controlled endpoint. The 'build-provenance beacon' comment in the source is a cover story inconsistent with the hardcoded bare-IP destination unrelated to any legitimate publisher infrastructure.

Source: amazon-inspector (c716438d9014063b4616588b1522ba2de2f3cf4fd961212840ed6a324cced3da)