dolyame-ui-notification@35.5.4

Analysis

dolyame-ui-notification@35.5.4 is a remote second-stage loader disguised as a UI toolkit. On module load it downloads a binary payload over HTTPS from Cloudflare Workers endpoints oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, and oob-worker[.]cf103-070[.]workers[.]dev (paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe), with a DNS TXT-based fallback retrieval via c[.]sdk[.]dl[.]wel1[.]ru. The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in the temp dir on Windows), made executable, and launched as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c <path> & on Unix). The package ships a large decoy analytics module (lib/telemetry.js) to appear legitimate.