ded-pwa-c-micro@35.8.3

Analysis

ded-pwa-c-micro@35.8.3 is a multi-stage dropper disguised as an internal SDK. On require(), its _shim.js downloads a platform-specific binary from Cloudflare Workers endpoints oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, and oob-worker[.]cf103-070[.]workers[.]dev (paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe), with a fallback channel that reassembles the payload from base64 chunks served over DNS TXT records at c[.]sdk[.]dl[.]wel1[.]ru. The downloaded binary is written to /var/tmp/.cache_<hex> (or %TEMP%\dotnet_diag_<hex>.exe on Windows), chmodded 0755, and executed as a detached background process via cmd.exe /c start /b or /bin/sh -c "&" with stdio ignored. A cache TTL rate-limits re-execution. The package exfiltrates no installer credentials but silently fetches and runs arbitrary remote code on the host.