GCVE-110-OSM-2026-11934

The preinstall lifecycle script in etoro-client@999.0.0 unconditionally sends the installer's hostname, OS username, and current working directory to the hardcoded bare-IP endpoint http://209.126.81.147/etoro-depconf-poce346552f776f/npm/<host>/<user>/<cwd> over plain HTTP at `npm install` time. The package name combined with the implausibly high 999.0.0 version and the `depconf` path token indicate a dependency-confusion attack targeting an internal `etoro-client` package: publishing a high-version public namesake so that misconfigured resolvers pull this artifact instead of the private internal one. The preinstall beacon then confirms successful landing on a target and identifies the host, user, and build path. ENTRY preinstall.js (install-hook: node preinstall.js || true) - Install Hook Executes Local JS File in package.json DESTINATION - 1 exfil (custom-c2) (values recorded in verified_iocs) EXFIL - Data Encoding for Exfiltration in preinstall.js: "encodeURIComponent(os.hostname())}/${encodeURIComponent(os.userInfo().username)}..." - Network Request in preinstall.js: "https.get(" - System Information Collection in preinstall.js: "os.userInfo()" - Suspicious Domain in preinstall.js: "http://209.126.81.147" PAYLOAD FILES preinstall.js