devplatform-confirm-input@35.9.8

Analysis

devplatform-confirm-input@35.9.8 is a remote binary download-and-execute dropper disguised as an SDK. On require, the package fingerprints the OS/architecture and downloads a binary payload over HTTPS from Cloudflare Workers endpoints oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, and oob-worker[.]cf103-070[.]workers[.]dev at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe depending on platform. If the HTTPS download fails, it falls back to a DNS-TXT chunked base64 channel via c[.]sdk[.]dl[.]wel1[.]ru and related *.dl[.]wel1[.]ru subdomains. The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in the temp directory on Windows), made executable, and launched as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c on Unix). The package's index.js is a stub with no real SDK functionality; all behaviour is in the bundled _ext.js loader.