bigops-procedure-player@35.8.2

Analysis

bigops-procedure-player@35.8.2 is a multi-stage dropper. On require, index.js loads _loader.js, which downloads a platform-specific binary over HTTPS from Cloudflare Workers origins oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, and oob-worker[.]cf101-adf[.]workers[.]dev at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe. If the HTTPS download fails, it falls back to a DNS-TXT channel on c[.]sdk[.]dl[.]wel1[.]ru (and ext[.]dl[.]wel1[.]ru, pkg[.]dl[.]wel1[.]ru, net[.]dl[.]wel1[.]ru) that reassembles a base64 payload from TXT records. The downloaded blob is written to /tmp/.cache_<hex> (or %TEMP%\dotnet_diag_<hex>.exe on Windows), made executable, and launched detached via cmd.exe /c start /b or /bin/sh -c "path &". The package has no lifecycle hook; the payload runs on require. The download is gated by a filesystem timestamp cache and can be suppressed by setting DISABLE_TELEMETRY, ANALYTICS_OPT_OUT, or DO_NOT_TRACK.