If this package is installed
Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.
Details
Source: amazon-inspector (26aae43ae2f260593e90c501c2863a515d4aa4f6753fccf82df101c62d43b77a)
index.js requires./_loader on load. _loader.js reconstructs attacker-controlled hostnames from split string fragments joined via.join("") to yield Cloudflare Workers hosts oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev and oob-worker.cf102-baf.workers.dev, and a DNS-TXT fallback channel under subdomains of wel1.ru. It HTTPS-GETs a platform-specific binary (/pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe), writes it to /var/tmp/.cache_<hex> or %TEMP%\dotnet_diag_<hex>.exe under a disguised filename, chmods 0755, and spawns it detached via /bin/sh -c "<path> &" or cmd.exe /c start /b. lib/telemetry.js carries the same drop-and-exec primitives under an "analytics SDK" cover story. Fires automatically on require of the package, giving arbitrary native code execution on the installer's host.