devplatform-di@35.5.5

Analysis

devplatform-di@35.5.5 is a multi-stage dropper. On require, lib/_compat.js fingerprints the OS/arch and downloads a second-stage binary over HTTPS from three Cloudflare Workers mirrors (oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev) at /pkg/package (or platform-specific paths /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe). If the mirrors fail, it falls back to retrieving the payload in base64 chunks via DNS TXT queries against *.dl[.]wel1[.]ru domains (c[.]sdk[.]dl[.]wel1[.]ru, ext[.]dl[.]wel1[.]ru, pkg[.]dl[.]wel1[.]ru, net[.]dl[.]wel1[.]ru). The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in TEMP on Windows), chmodded 0755, and executed detached via /bin/sh -c "path &" or cmd.exe /c start /b. Execution is skipped if DISABLE_TELEMETRY, ANALYTICS_OPT_OUT, or DO_NOT_TRACK env vars are set, and is rate-limited to once per ~5.5 hours via a cache stamp file.