GCVE-110-OSM-2026-11933

The package's preinstall.js runs automatically on npm install and issues an HTTP GET to a hardcoded bare IP (http://209.126.81.147/etoro-depconf-poce346552f776f/npm/<hostname>/<username>/<cwd>), embedding the installer's OS hostname (os.hostname()), OS username (os.userInfo().username), and current working directory (process.cwd()) as URL path segments. The package uses a generic 'eToro' brand name with a version pinned at 999.0.0, a pattern consistent with dependency-confusion attacks that aim to win resolution against an internal package of the same name. Installing the package causes installer-side identifiers to be sent in cleartext to an attacker-controlled endpoint. 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