# MAL-2026-12674: Malicious code in ded-ps-events-ded-ps-events-core (npm)


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

## What is MAL-2026-12674?

MAL-2026-12674 is a malicious package in ded-ps-events-ded-ps-events-core, published on 5 Aug 2026. 

### Official description

index.js unconditionally requires./setup.js on load. setup.js assembles hostnames at runtime via Array.join("") to hide them from static scanners, resolving to four Cloudflare Workers endpoints (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS-TXT chunked fallback under sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. It selects a platform-specific path (/pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe), downloads the binary over HTTPS, writes it to /var/tmp or the Windows temp directory under a disguised name (dotnet_diag_<hex>.exe or.cache_<hex>), chmods 0o755, and spawns it detached via /bin/sh -c or cmd with.unref(). No hash or signature verification is performed, the endpoints are unrelated to the package's stated purpose (an event-bus framework), and a cooldown flag is written for persistence. Importing this package auto-executes attacker-controlled native code on the installer's machine.

## What should I do about MAL-2026-12674?

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-2026-12674 is a malicious package: ded-ps-events-ded-ps-events-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-2026-12674/ (Markdown: https://insights.sbomify.com/MAL-2026-12674/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12674

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-12674/
Summaries are generated and may contain mistakes; the official description above is the record.