MAL-2026-13004 Malicious code in bnpl-blocks-mobile-bnpl-separator (npm)
Malicious package
Published
MAL-2026-13004 is a malicious package: bnpl-blocks-mobile-bnpl-separator (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-2026-13004/ (Markdown: https://insights.sbomify.com/MAL-2026-13004/index.md)
- Package
- bnpl-blocks-mobile-bnpl-separator
- Registry
- npm
What is MAL-2026-13004?
MAL-2026-13004 is a malicious package in bnpl-blocks-mobile-bnpl-separator, published on 5 Aug 2026.
Official description
On require of the package, index.js loads bootstrap.js which fetches a platform-specific binary payload over HTTPS from author-controlled hosts whose names are assembled at runtime by joining split string fragments (resolving to *.workers.dev subdomains), with a fallback that reassembles a base64-chunked payload from DNS TXT records under *.dl.wel1.ru. The fetched binary is written to /tmp/.cache<rnd> on Unix or %TEMP%/dotnet_diag_<rnd>.exe on Windows, chmod'd 0755, and spawned detached via /bin/sh -c or cmd. A stamp file named.analytics_state and env-var checks for DISABLE_TELEMETRY/ANALYTICS_OPT_OUT are used as a telemetry-themed cover. The destination hosts are not the package's publisher infrastructure, the fetched bytes are opaque and unpinned, and execution occurs at import time on every consumer machine.
What should I do about MAL-2026-13004?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.