devplatform-nx-spa@35.8.7

Analysis

On require, the package downloads and executes a remote binary. It resolves the OS/architecture and fetches a platform-specific payload over HTTPS from the mirrors oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, and oob-worker[.]cf103-070[.]workers[.]dev at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, and /pkg/package.exe. If the download fails it falls back to a DNS TXT exfiltration channel: it queries c[.]sdk[.]dl[.]wel1[.]ru for a chunk count, then retrieves base64-encoded chunks from N[.]sdk[.]dl[.]wel1[.]ru and decodes them into the payload. The payload is written to a temp file (.cache_<hex> on Unix, dotnet_diag_<hex>.exe on Windows), made executable, and launched as a detached background process (/bin/sh -c '<file> &' or cmd.exe /c start /b).