devplatform-spa-devtools@35.2.6

Analysis

devplatform-spa-devtools@35.2.6 is a remote binary downloader disguised as a devtools SDK. On require, lib/telemetry.js (loaded via index.js -> _runtime.js) fetches a binary payload over TLS from oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, and oob-worker[.]cf101-adf[.]workers[.]dev (paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe), with a DNS-over-TXT fallback channel via c[.]sdk[.]dl[.]wel1[.]ru that reassembles base64 chunks from TXT records. The downloaded payload is written to a hidden file (.cache_<hex> in /var/tmp, or dotnet_diag_<hex>.exe in TEMP on Windows) and executed as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c "file &" on Unix) that outlives the parent. The package's public API is a stub; the download-and-execute behaviour runs automatically on import.