# MAL-2026-5412: Malicious code in @klapp-kyc/routes (npm)


- **Type:** Malicious package
- **Package:** `@klapp-kyc/routes` (npm)
- **Published:** 9 Jun 2026

## What is MAL-2026-5412?

MAL-2026-5412 is a malicious package in @klapp-kyc/routes, published on 9 Jun 2026. 

### Official description

On `npm install`, the package's preinstall hook executes `node index.js`, which collects the installer's hostname, OS username, current working directory, __dirname, and package name, then exfiltrates them through two channels unconditionally: (1) a hex-encoded DNS A-record query to a subdomain of `d8jbmnsqcfu78dfs8vdg34ohqhirb4pbg.oast.live` (an interactsh-style out-of-band collector), and (2) an HTTP POST of a JSON payload to `http://172.201.213.59:9090/c`. The package has no other functionality — `package.json` declares `description: "security research"`, version `99.0.0` (dependency-confusion-style high version), and a KYC-themed scope (`@klapp-kyc/routes`) suggesting targeted reconnaissance against a specific organization's internal namespace. Regardless of the self-description, installers' internal host identifiers are leaked to attacker-controlled infrastructure.

## What should I do about MAL-2026-5412?

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-2026-5412 is a malicious package: @klapp-kyc/routes (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-2026-5412/ (Markdown: https://insights.sbomify.com/MAL-2026-5412/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-5412

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-5412/
Summaries are generated and may contain mistakes; the official description above is the record.