MAL-2026-13551 Malicious code in dolyame-boxy-independent-bnpl-faq (npm)
Malicious package
Published
MAL-2026-13551 is a malicious package: dolyame-boxy-independent-bnpl-faq (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-13551/ (Markdown: https://insights.sbomify.com/MAL-2026-13551/index.md)
- Package
- dolyame-boxy-independent-bnpl-faq
- Registry
- npm
What is MAL-2026-13551?
MAL-2026-13551 is a malicious package in dolyame-boxy-independent-bnpl-faq, published on 7 Aug 2026.
Official description
On require of the package, index.js loads runtime.js which selects a platform-specific binary path, downloads an opaque payload from string-array-obfuscated Cloudflare Workers hosts (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev), with a DNS-TXT fallback that reconstructs a base64 payload from numbered subdomains of *.dl.wel1.ru (e.g. sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru). The fetched bytes are written to /var/tmp/.cache<uid> on *nix or %TEMP%\dotnet_diag_<uid>.exe on Windows, chmod 0755, and spawned detached via /bin/sh -c or cmd.exe. Destination hostnames are assembled at runtime via array-join to defeat static string search; execution is gated by a TTL cache and opt-out env vars. The purported BNPL-FAQ purpose has no relationship to fetching and executing native binaries from anonymous worker hosts.
What should I do about MAL-2026-13551?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.