bigops-chats-client@35.2.4

Analysis

bigops-chats-client@35.2.4 is a trojanized package that pretends to be an internal SDK client. When required, it silently loads a hidden initializer (_init.js) that downloads a platform-specific binary from Cloudflare Workers C2 servers (oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev) with DNS TXT-record-based fallback domains (sdk[.]dl[.]wel1[.]ru, ext[.]dl[.]wel1[.]ru, pkg[.]dl[.]wel1[.]ru, net[.]dl[.]wel1[.]ru). The downloaded binary is written to /var/tmp/.cache_<random> (or Windows TEMP) and executed as a detached background process. The package has no repository and no README.