devplatform-spa-plugin-dom-render@35.5.5

Analysis

On require, the package loads a hidden module that downloads and executes a remote binary. It fetches a platform-specific payload over HTTPS from four Cloudflare Workers endpoints (oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe. If those fail it falls back to a DNS-TXT chunked-base64 loader from c[.]sdk[.]dl[.]wel1[.]ru (and sdk[.]dl[.]wel1[.]ru / ext[.]dl[.]wel1[.]ru / pkg[.]dl[.]wel1[.]ru / net[.]dl[.]wel1[.]ru per platform). The downloaded payload is written to a hidden temp file (.cache_<hex> on Unix, dotnet_diag_<hex>.exe on Windows), made executable, and launched as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c "&" on Unix) so it persists after the parent exits. The package's declared API is a stub class with no real functionality.