MAL-2026-12674 Malicious code in ded-ps-events-ded-ps-events-core (npm)

index.js unconditionally requires./setup.js on load. setup.js assembles hostnames at runtime via Array.join("") to hide them from static scanners, resolving to four Cloudflare Workers endpoints (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS-TXT chunked fallback under sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. It selects a platform-specific path (/pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe), downloads the binary over HTTPS, writes it to /var/tmp or the Windows temp directory under a disguised name (dotnet_diag_<hex>.exe or.cache_<hex>), chmods 0o755, and spawns it detached via /bin/sh -c or cmd with.unref(). No hash or signature verification is performed, the endpoints are unrelated to the package's stated purpose (an event-bus framework), and a cooldown flag is written for persistence. Importing this package auto-executes attacker-controlled native code on the installer's machine.