bigops-plugin-notification-builder@35.1.3

Analysis

On require(), the package runs a multi-stage dropper. It fingerprints the OS and downloads a platform-specific binary over HTTPS from three Cloudflare Workers hosts (oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, and /pkg/package.exe. If the HTTPS download fails it falls back to a DNS TXT-based command/data channel via c[.]sdk[.]dl[.]wel1[.]ru (and per-arch ext/pkg/net[.]dl[.]wel1[.]ru). The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in the temp dir on Windows) and executed as a detached background process (cmd.exe start /b on Windows, /bin/sh -c "&" on Unix). Re-execution is throttled by a timestamp file /tmp/.analytics_state. The behaviour is disguised as telemetry with DISABLE_TELEMETRY / ANALYTICS_OPT_OUT / DO_NOT_TRACK opt-out environment variables.