MAL-2026-13306 Malicious code in dolyame-boxy-desktop-bnpl-image-plus-text (npm)

On require() of this package, index.js loads compat.js which selects platform-specific endpoints assembled from split string arrays (e.g. oob-worker.cf10-baf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev) and downloads an opaque binary via https.get. If HTTP fetch fails, a fallback path reassembles a base64 payload from numbered DNS TXT records under *.dl.wel1.ru — a covert channel designed to bypass HTTP egress controls. The fetched bytes are written to /var/tmp or %TEMP% under a disguised name (.cache_XXXX on POSIX, dotnet_diag_XXXX.exe on Windows), chmod'd 0755, and spawned detached via /bin/sh -c or cmd.exe. A second module lib/telemetry.js (81KB) bundled in the tarball mirrors the same fetch/chmod/spawn chain using string-concatenation obfuscation of 'child' + 'process' and 'chmod' + 'Sync', framed as an Analytics SDK; it is not reached from index.js in this version but is a one-line change from activation. The package name presents as a Dolyame BNPL desktop UI component, unrelated to the observed dropper behavior. No hash verification, no publisher pinning, and hostname obfuscation together characterize this as a lure package delivering attacker-controlled code to the installer's host at require() time.

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.