# MAL-2026-13025: Malicious code in bnpl-molecule-mobile-bnpl-onboarding (npm)


- **Type:** Malicious package
- **Package:** `bnpl-molecule-mobile-bnpl-onboarding` (npm)
- **Published:** 5 Aug 2026

## What is MAL-2026-13025?

MAL-2026-13025 is a malicious package in bnpl-molecule-mobile-bnpl-onboarding, published on 5 Aug 2026. 

### Official description

On require of the package, index.js loads _runtime.js which selects a platform-keyed asset (linux/darwin/win32), downloads an opaque binary from one of three string-split-obfuscated Cloudflare Workers hosts (oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS TXT-record base64 fallback via wel1.ru subdomains, writes the payload to /var/tmp or %TEMP% under a masquerading filename (dotnet_diag_<hex>.exe on Windows,.cache_<hex> on Unix), chmods it 0755, and detached-spawns it via /bin/sh -c or cmd.exe /c start /b. Destination hostnames are reconstructed by joining split fragments (e.g. ["oob-worker.cf1","00-416.wo","rkers",".d","ev"].join("")) to evade static analysis, and a decoy no-op logger writes empty strings to stderr. The package name impersonates a BNPL onboarding module but ships no such functionality.

## What should I do about MAL-2026-13025?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

## Fix prompt for AI coding agents

```text
MAL-2026-13025 is a malicious package: bnpl-molecule-mobile-bnpl-onboarding (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-2026-13025/ (Markdown: https://insights.sbomify.com/MAL-2026-13025/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-13025

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-13025/
Summaries are generated and may contain mistakes; the official description above is the record.