# MAL-2026-13558: Malicious code in dolyame-ui-clickoutsidehoc (npm)


- **Type:** Malicious package
- **Package:** `dolyame-ui-clickoutsidehoc` (npm)
- **Published:** 7 Aug 2026

## What is MAL-2026-13558?

MAL-2026-13558 is a malicious package in dolyame-ui-clickoutsidehoc, published on 7 Aug 2026. 

### Official description

On require() of this package, index.js loads _shim.js which assembles hostnames from split string fragments to hide them (e.g. ["oob-work","er.cf100-416.workers",".dev"].join("") and ['sd','k.dl.wel1.r','u'].join("")), fetches a platform-specific executable from Cloudflare Workers hosts (oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS TXT covert-channel fallback under sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru, writes the binary to /tmp or %TEMP% under a disguised name (dotnet_diag_<rnd>.exe or.cache_<rnd>), chmods it 0755, and spawns it detached via /bin/sh -c or cmd. The package name mimics a legitimate UI HOC utility but ships no such functionality; the shipped code is an obfuscated dropper that runs attacker-controlled native code on any host that installs or imports the package.

## What should I do about MAL-2026-13558?

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-2026-13558 is a malicious package: dolyame-ui-clickoutsidehoc (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-2026-13558/ (Markdown: https://insights.sbomify.com/MAL-2026-13558/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-13558

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-13558/
Summaries are generated and may contain mistakes; the official description above is the record.