dolyame-ui-action@35.6.3

Analysis

dolyame-ui-action@35.6.3 is a multi-stage downloader/loader. Importing the package immediately runs a bundled loader (_support.js) that fingerprints the OS/architecture and downloads a binary payload over HTTPS from four Cloudflare Workers endpoints (oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev) at arch-specific paths (/pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe). If those fail, it reconstructs a base64 payload from DNS TXT records under c[.]sdk[.]dl[.]wel1[.]ru (fallback domains sdk[.]dl[.]wel1[.]ru, ext[.]dl[.]wel1[.]ru, pkg[.]dl[.]wel1[.]ru, net[.]dl[.]wel1[.]ru). The downloaded payload is written to a hidden temp file (.cache_<hex> on Unix, dotnet_diag_<hex>.exe on Windows) and executed as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c "&" on Unix).