GCVE-110-OSM-2026-11928

The preinstall lifecycle script in etoro-api@999.0.0 (preinstall.js) auto-executes on npm install and performs an HTTP GET to a hardcoded bare-IP endpoint at http://209.126.81.147/etoro-depconf-poce346552f776f/npm/<host>/<user>/<cwd>, embedding the installer's hostname (os.hostname()), OS username (os.userInfo().username), and current working directory (process.cwd()) as URL path components. The destination is a plain-HTTP bare-IP host unrelated to any legitimate eToro publishing infrastructure. The package name combined with the implausibly high version number (999.0.0) is the canonical dependency-confusion shape used to force resolution over an internal private package of the same name. 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