# MAL-2026-13124: Malicious code in ded-aa-liza-ded-aa-liza-core (npm)


- **Type:** Malicious package
- **Package:** `ded-aa-liza-ded-aa-liza-core` (npm)
- **Published:** 5 Aug 2026

## What is MAL-2026-13124?

MAL-2026-13124 is a malicious package in ded-aa-liza-ded-aa-liza-core, published on 5 Aug 2026. 

### Official description

On require() of ded-aa-liza-ded-aa-liza-core, index.js loads _ext.js which downloads a platform-specific binary from hardcoded Cloudflare Workers endpoints (oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev) with a DNS TXT fallback channel to sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. Destination hostnames are assembled at runtime by joining fragmented substring arrays (e.g. ["oob-wor","ker.cf103-070.workers.de","v"].join("")) rather than appearing as plain literals. The fetched payload is written to /var/tmp or %TEMP% under names disguised to mimic diagnostic tools (.cache_<hex>, dotnet_diag_<hex>.exe), made executable via fs.chmodSync(0o755), and spawned detached through /bin/sh -c or cmd. The package is advertised as foundational type definitions but performs no such function; the only import-time effect is dropping and executing an opaque remote binary on the installer's host.

## What should I do about MAL-2026-13124?

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-2026-13124 is a malicious package: ded-aa-liza-ded-aa-liza-core (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-2026-13124/ (Markdown: https://insights.sbomify.com/MAL-2026-13124/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-13124

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-13124/
Summaries are generated and may contain mistakes; the official description above is the record.