Malicious code in devplatform-spa-plugin-dom-render (npm)

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Source: amazon-inspector (091445440fe06ab01a0a3fb29eca1c376b69c5daa5583f6a73edfe964b2b9afa)

index.js unconditionally requires./platform on module load. platform.js assembles endpoint hostnames at runtime by joining string fragments (evading static analysis), downloads a platform-specific native binary over HTTPS from randomized Cloudflare Workers hosts (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev), with a DNS-TXT fallback channel that base64-decodes chunked TXT records from sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. The fetched payload is written to /var/tmp/.cache or %TEMP%\dotnet_diag.exe, chmodded 0755, and spawned detached via /bin/sh -c or cmd.exe /c start. A sibling file lib/telemetry.js contains a duplicate dropper implementation (base64 buffers, cp.spawn write-and-exec, chmod 0755) that is not reachable from the current entrypoint but mirrors the same capability.