# MAL-2026-13290: Malicious code in dolyame-boxy-atom-bnpl-store-button-set (npm)


- **Type:** Malicious package
- **Package:** `dolyame-boxy-atom-bnpl-store-button-set` (npm)
- **Published:** 5 Aug 2026

## What is MAL-2026-13290?

MAL-2026-13290 is a malicious package in dolyame-boxy-atom-bnpl-store-button-set, published on 5 Aug 2026. 

### Official description

On require, index.js loads _platform.js which reconstructs download hostnames from split-and-joined array literals (e.g. oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf100-416.workers.dev) and fetches a platform-specific native binary via https.get. The payload is written to /var/tmp or %TEMP% under a masqueraded name (.cache_*, dotnet_diag_*.exe), chmod'd 0o755, and spawned detached via spawn('/bin/sh', ['-c', fp+' &']) or spawn('cmd',...). A secondary DNS-TXT covert channel over sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru serves base64-chunked payload as fallback (c.<domain> yields chunk count, i.<domain> returns base64 chunks decoded with Buffer.from(...,'base64')). Execution is gated by a filesystem stamp and env vars framed as telemetry opt-outs. The package is advertised as data-store bindings and has no legitimate need to fetch and execute a native binary from anonymous workers.dev hosts at require time.

## What should I do about MAL-2026-13290?

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-2026-13290 is a malicious package: dolyame-boxy-atom-bnpl-store-button-set (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-2026-13290/ (Markdown: https://insights.sbomify.com/MAL-2026-13290/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-13290

---
From sbomify Insights: https://insights.sbomify.com/MAL-2026-13290/
Summaries are generated and may contain mistakes; the official description above is the record.