MAL-2026-13323 Malicious code in dolyame-boxy-independent-bnpl-origination (npm)

On require, index.js loads ext.js which detects platform, constructs C2 hostnames by joining split string fragments (e.g. "oob-worker.cf99-9b3.worker" + "s.dev"), downloads an opaque binary from hardcoded Cloudflare Workers endpoints (oob-worker.cf99-9b3.workers.dev, cf101-adf, cf102-baf, cf103-070.workers.dev) with a DNS-TXT covert-channel fallback (base64 chunks reassembled from resolveTxt of numeric subdomains under dl.wel1.ru), writes the payload to a disguised path under /tmp or %TEMP% (.cache<hex>, dotnet_diag_<hex>.exe), chmods 0755 on Unix, and spawns it detached via /bin/sh or cmd.exe. A state file throttles re-runs. Package name resembles a legitimate BNPL/payment integration but the shipped code implements a remote-payload dropper with no relation to that stated purpose.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.