MAL-2026-13312 Malicious code in dolyame-boxy-independent-bnpl-breadcrumbs (npm)

index.js unconditionally requires./_init at module load time. _init.js selects a platform-specific path, fetches an opaque native binary over HTTPS from a rotating set of Cloudflare Workers subdomains whose hostnames are assembled at runtime via array.join("") to evade plain-text scanning (e.g. oob-worker.cf99-9b3.workers.dev, cf101-adf/cf103-070/cf100-416.workers.dev), writes it to /tmp or %TEMP% under a disguised name, chmods 0755 on POSIX, and spawns it detached via /bin/sh -c or cmd.exe /c start /b. A fallback covert channel queries TXT records at c.<domain> and N.<domain> under sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru, concatenates the chunks and base64-decodes them into the same executable payload. Requiring or installing the package results in execution of attacker-controlled native code on the installer host.

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.