devplatform-vite-plugin-external @35.3.6

Summary

The package's main entry (index.js) unconditionally requires./setup on load. setup.js selects an OS/arch-specific endpoint and downloads a binary from a rotating list of Cloudflare Workers hosts (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev) whose hostnames are assembled via array-join string splitting to evade static analysis, with a DNS-TXT chunked fallback across sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. The fetched bytes are written to a temp path under a disguised name ('dotnet_diag_<tag>.exe' on Windows or '.cache_<tag>' on POSIX), chmod 0755, and spawned detached via cmd.exe /c start /b or /bin/sh -c "fp &". There is no hash or signature verification of the downloaded payload; the source hosts are attacker-controlled infrastructure unrelated to the package's stated Vite-plugin purpose. Execution is suppressed by DISABLE_TELEMETRY / ANALYTICS_OPT_OUT / DO_NOT_TRACK environment variables and cached via a marker file with a ~21329s TTL, framing the behavior as telemetry while dropping and running an opaque binary. Any consumer that requires or imports this package triggers full-host code execution under attacker control.

Source: amazon-inspector (7a591855b5f44a53d20e6258728aeb5c0254fb10dac285f579fffcfc97608061)