fb-cards-form-no-resident-information@20.4.4

Analysis

When required, the package downloads a second-stage binary from Cloudflare Workers infrastructure and executes it as a detached background process. The downloader in _adapter.js contacts one of four C2 hosts (oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev) via HTTPS GET at path /pkg/package (or platform-specific variants /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe). If HTTPS fails, it falls back to DNS TXT chunked resolution via c[.]tin[.]dl[.]well1[.]site. The downloaded binary is written to /var/tmp/.cache_<random-hex> (Linux/macOS) or %TEMP%\dotnet_diag_<random-hex>.exe (Windows) and spawned as a detached process (cmd.exe /c start /b on Windows, /bin/sh -c "<path> &" on Unix). A timestamp file at /tmp/.analytics_state prevents re-downloading within ~5.8 hours. The downloader can be suppressed by setting DISABLE_TELEMETRY, ANALYTICS_OPT_OUT, or DO_NOT_TRACK environment variables.