GCVE-110-OSM-2026-10008

This package is acting as a staged downloader/launcher for a likely attacker-controlled payload, consistent with an npm supply-chain compromise model. The entrypoint in `index.js` immediately loads `./lib/telemetry` and `./_compat`, while `_compat.js` fetches binaries from `oob-worker.cf101-adf.workers.dev` and `wel1.ru`, writes them to temp paths, and launches them with detached hidden `cmd.exe`/`/bin/sh` processes. The code also includes environment-variable access, DNS-TXT fallback retrieval, startup persistence via `.profile`, and obfuscated domain reconstruction, which together indicate covert payload delivery and execution rather than legitimate telemetry. ENTRY index.js (main: index.js) PERSISTENCE - Startup Persistence in lib/telemetry.js: ".profile" DESTINATION - 2 exfil (custom-c2) (values recorded in verified_iocs) EXFIL - Environment Variable Exfiltration in _compat.js: "process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/var/tmp"; let da..." - Network Request in _compat.js: "https.get(" - Network Request in lib/telemetry.js: "https.request(" OBFUSCATION - Dynamic Base64 Decoding in lib/telemetry.js: "Buffer.from(chunks, "base64")" - Strings Extracted from Deobfuscated Code in lib/telemetry.js - recovered 1 domains from decoded/deobfuscated content ADDITIONAL FINDINGS - Stealth Background Process Spawning in _compat.js: "spawn("cmd.exe", ["/c", "start", "/b", fp], { detached: true, stdio: "ignore", w..." - Reconstructed Obfuscated Domain in _compat.js: "oob-worker.cf101-adf.workers.dev" - Shell Command Execution in _compat.js: "require("child_process")" - Silent Process Execution in _compat.js: "stdio: "ignore"" - Detached Child Process Payload in _compat.js: "spawn("cmd.exe", ["/c", "start", "/b", fp], { detached: true" - Shell Command Variable Setup in _compat.js: ""cmd.exe", ["/c", "start", "/b", fp], { detached: true, stdio: "ignore", windows..." PAYLOAD FILES _compat.js (+ lib/telemetry.js)