dolyame-ui-island@35.7.4

Analysis

dolyame-ui-island@35.7.4 is a trojanized "React components" package that runs a downloader on require. setup.js fingerprints the platform/architecture and downloads a binary payload over HTTPS from Cloudflare Workers endpoints (oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev) at /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe depending on OS. If the HTTPS download fails it reconstructs the payload from DNS TXT records served under sdk[.]dl[.]wel1[.]ru / ext[.]dl[.]wel1[.]ru / pkg[.]dl[.]wel1[.]ru / net[.]dl[.]wel1[.]ru (chunked base64). The payload is written to a hidden file in /tmp or /var/tmp (.cache_<hex> on Unix, dotnet_diag_<hex>.exe on Windows), made executable, and launched detached via /bin/sh -c "<path> &" or cmd.exe /c start /b. The package also ships an 81KB decoy telemetry module (lib/telemetry.js) to appear legitimate.