statist-browser-typed-client-sme.platform.web.teasers@20.4.6

Summary

The package's declared main (index.js) unconditionally requires./_init on load. _init.js selects a platform-specific asset (win32/darwin/linux_x64/linux_arm64) and downloads a native binary over HTTPS from a rotating pool of Cloudflare Worker hosts whose hostnames are reassembled at runtime from split-literal arrays (oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev), with a DNS-TXT covert-channel fallback via *.dl.well1.site. The downloaded bytes are written to /tmp or %TEMP% under disguised names (.cache_<hex> on POSIX, dotnet_diag_<hex>.exe on Windows), chmod 0755'd on POSIX, and spawned detached via /bin/sh -c or cmd. child_process is loaded via require("child_"+"process") in lib/telemetry.js to evade static analysis. There are no lifecycle scripts required — any require() or import of this package triggers download and execution of an unpinned, unauthenticated remote binary from anonymous infrastructure, giving the publisher arbitrary code execution on the installer's host.

Source: amazon-inspector (30e7b10d7a21e347dca99c9bf32f2c4d81aef8bdc78a10d308b63a881db69027)