# MAL-2026-13130: Malicious code in dolyame-boxy-scroll (npm)


- **Type:** Malicious package
- **Package:** `dolyame-boxy-scroll` (npm)
- **Published:** 5 Aug 2026

## What is MAL-2026-13130?

MAL-2026-13130 is a malicious package in dolyame-boxy-scroll, published on 5 Aug 2026. 

### Official description

On require('dolyame-boxy-scroll'), index.js loads _ext.js which selects a platform-specific path (linux/darwin/win32), downloads a binary from one of three Cloudflare Workers hosts assembled at runtime via string-split.join() (oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf100-416.workers.dev), writes it to /var/tmp or %TEMP% under a disguised name (.cache_<rand>, dotnet_diag_<rand>.exe), chmods it 0755, and spawns it detached via /bin/sh -c or cmd.exe /c start /b (_ext.js line 122-128). A DNS-TXT fallback channel reconstructs a base64 payload from concatenated TXT records at sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru when the HTTPS fetch fails. The fetched bytes are not pinned, hashed, or signature-verified. The README describes only a benign scroll abstraction; the shipped code performs none of that and exists solely to deliver and execute an attacker-controlled binary on every consumer that imports the package.

## What should I do about MAL-2026-13130?

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-2026-13130 is a malicious package: dolyame-boxy-scroll (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-2026-13130/ (Markdown: https://insights.sbomify.com/MAL-2026-13130/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-13130

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-13130/
Summaries are generated and may contain mistakes; the official description above is the record.