# MAL-2023-1111: Malicious code in afterpay-sdk-example-server (npm)


- **Type:** Malicious package
- **Package:** `afterpay-sdk-example-server` (npm)
- **Published:** 3 May 2023
- **Also known as:** GHSA-rw44-fjj4-3p2c, GHSA-xqcr-rgfp-6wv7

## What is MAL-2023-1111?

MAL-2023-1111 is a malicious package in afterpay-sdk-example-server, published on 3 May 2023. 

### Official description

package.json declares a preinstall hook ("preinstall": "node index.js") that runs automatically on npm install. index.js requires os/fs/https, then collects host identifiers and installer-side files — __dirname, os.homedir(), os.hostname(), os.userInfo(), DNS servers, the full contents of /etc/passwd and /etc/hosts, and the package.json — and POSTs them over HTTPS to xqrangwae3pk5bd12xbr6t8q9hfc32rr.oastify.com (a Burp Collaborator OAST subdomain). The package name 'afterpay-sdk-example-server' impersonates an internal Afterpay SDK example, consistent with a dependency-confusion payload targeting Afterpay's internal build systems. Whether published as research or attack, any installer running npm install leaks system account data and host fingerprints to an attacker-controlled out-of-band collection endpoint.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

The OpenSSF Package Analysis project identified 'afterpay-sdk-example-server' @ 20.0.0 (npm) as malicious.

It is considered malicious because:
- The package communicates with a domain associated with malicious activity.

## What should I do about MAL-2023-1111?

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-2023-1111 is a malicious package: afterpay-sdk-example-server (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-2023-1111/ (Markdown: https://insights.sbomify.com/MAL-2023-1111/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2023-1111

---
From sbomify Insights: https://insights.sbomify.com/MAL-2023-1111/
Summaries are generated and may contain mistakes; the official description above is the record.