# MAL-2026-10128: Malicious code in ohcm-culture-formatting (npm)


- **Type:** Malicious package
- **Package:** `ohcm-culture-formatting` (npm)
- **Published:** 10 Jul 2026

## What is MAL-2026-10128?

MAL-2026-10128 is a malicious package in ohcm-culture-formatting, published on 10 Jul 2026. 

### Official description

ohcm-culture-formatting@5.0.0 declares a preinstall hook (`"preinstall": "node index.js"`) that auto-executes on `npm install`. index.js uses `child_process.exec` to run a shell pipeline that reads `/etc/passwd`, `/etc/hosts`, `/etc/shadow`, and `id` output, base64-encodes the concatenation, and POSTs it via curl to `http://d98fu4tmls2g936th9qgfxje1qj9g91a6.oast.fun/ohcm-culture-formatting/$(whoami)/$(hostname)/`, embedding the installer's username and hostname in the URL path and the file contents in the User-Agent header. The destination is an Interactsh/OAST out-of-band interaction collector. The package name mimics an internal ADP/Lifion (`ohcm-*`) namespace and the description string is `Lifion host`, consistent with a dependency-confusion payload targeting that internal namespace.

## What should I do about MAL-2026-10128?

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-2026-10128 is a malicious package: ohcm-culture-formatting (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-2026-10128/ (Markdown: https://insights.sbomify.com/MAL-2026-10128/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-10128

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-10128/
Summaries are generated and may contain mistakes; the official description above is the record.