# MAL-2026-17704: Malicious code in @wxwxtest/testrrrdd (npm)


- **Type:** Malicious package
- **Package:** `@wxwxtest/testrrrdd` (npm)
- **Published:** 8 Oct 2026

## What is MAL-2026-17704?

MAL-2026-17704 is a malicious package in @wxwxtest/testrrrdd, published on 8 Oct 2026. 

### Official description

The package ships a postinstall script (`scripts.postinstall` runs `node beacon.cjs`) and a top-level `require('./beacon.cjs').fire()` in `index.js` that POST installer host metadata — hostname, install path, cwd, Node version, and package name — to the hardcoded plain-HTTP bare-IP endpoint `http://185.158.107.175:8787/_ah/dc`. The exfiltration fires automatically both on `npm install` and on any `require()` of the package. `index.js` otherwise exports a Proxy returning no-op functions for any property access, so the package has no legitimate functionality; its sole effect is the callback to the hardcoded endpoint. The destination is not associated with any publisher domain and is unrelated to the self-described 'compatibility shim' purpose. The shape (stub Proxy export + install/require-time beacon to a bare-IP collector) is a dependency-confusion / typosquat proof-of-installation beacon.

## What should I do about MAL-2026-17704?

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-2026-17704 is a malicious package: @wxwxtest/testrrrdd (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-2026-17704/ (Markdown: https://insights.sbomify.com/MAL-2026-17704/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-17704

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-17704/
Summaries are generated and may contain mistakes; the official description above is the record.