MAL-2026-13293 Malicious code in dolyame-boxy-atom-desktop-bnpl-container (npm)

On require(), index.js loads bootstrap.js, which reconstructs remote hosts by array.join string concatenation (oob-worker.cf100-416.workers.dev, cf101-adf.workers.dev, cf103-070.workers.dev, with a *.dl.wel1.ru DNS-TXT fallback), downloads an opaque platform-specific binary over HTTPS (or via chunked base64 in DNS TXT records against c.<domain>/i.<domain> when HTTPS is unavailable), writes it to /var/tmp/.cache<hex> on Unix or %TEMP%\dotnet_diag_<hex>.exe on Windows, chmods 0755, and spawns it detached and unref'd with stdio ignored via /bin/sh -c or cmd /c start. The package presents itself as a trivial BNPL container wrapper and ships no code related to that stated purpose; the fetched bytes are neither pinned nor hash-verified, the destinations are obfuscated to defeat static inspection, the DNS-TXT channel is designed to bypass HTTPS egress filtering, and the on-disk filenames impersonate legitimate diagnostic/cache artifacts.

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.