@demica/core @99.99.100

Summary

Package self-describes as a dependency-confusion canary targeting the @demica scope and ships a postinstall hook that fires automatically on npm install . package.json declares scripts.postinstall: node canary.js postinstall , and canary.js lines 18-22 issue an HTTP GET to the bare IP 157.230.17.236 on port 80 at path /dc?... with the package name, version, a nonce, and the lifecycle phase. Any machine that resolves @demica/core@99.99.99 from the public registry — typically because an internal build accidentally pulled the public squat instead of the private @demica/core — silently announces itself to the operator of 157.230.17.236, disclosing the installer's egress IP, the presence of the @demica internal namespace in the build, and confirmation that the dependency-confusion attack succeeded. The beacon body is metadata-only (no env/filesystem/credential reads), but the install-time outbound HTTP to a hardcoded attacker-controlled bare IP, fired without consent on default install, is the canonical dependency-confusion exploitation primitive and gives the publisher exactly the reconnaissance signal needed to identify and escalate against vulnerable internal build pipelines.

Source: amazon-inspector (3abd78892d57868223d66ae70f269e5088d5801f5beaa41418146172a3e5e338)