GCVE-110-OSM-2026-10017

This package is consistent with a malware loader designed for a compromised-legitimate-package supply-chain attack: `index.js` immediately requires `./lib/telemetry` and `./_support`, and `_support.js` downloads a payload from reconstructed C2 hosts before writing it to disk and executing it. The attacker model is clear: remote code delivery and stealthy persistence/execution via `https.get`, chunked DNS TXT retrieval in `dnsResolve`, and detached `cmd.exe`/`/bin/sh` spawning with `stdio: "ignore"` and `windowsHide: true`. The recovered domains `oob-worker.cf102-baf.workers.dev` and `99-9b3.workers.de` are classified as custom C2/exfil, and the `.profile` persistence rule plus `process.pid` anti-analysis further support intent to hide and survive. The minimal metadata and burner-shaped package name reinforce that this is not a normal telemetry library but a dropper/loader. 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 - Network Request in _support.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 _support.js: "spawn("cmd.exe", ["/c", "start", "/b", fp], { detached: true, stdio: "ignore", w..." - Reconstructed Obfuscated Domain in _support.js: "oob-worker.cf102-baf.workers.dev" - Shell Command Execution in _support.js: "require("child_process")" - Silent Process Execution in _support.js: "stdio: "ignore"" - Detached Child Process Payload in _support.js: "spawn("cmd.exe", ["/c", "start", "/b", fp], { detached: true" - Shell Command Variable Setup in _support.js: ""cmd.exe", ["/c", "start", "/b", fp], { detached: true, stdio: "ignore", windows..." PAYLOAD FILES _support.js (+ lib/telemetry.js)