# MAL-2026-12711: Malicious code in devplatform-hooks (npm)


- **Type:** Malicious package
- **Package:** `devplatform-hooks` (npm)
- **Published:** 5 Aug 2026

## What is MAL-2026-12711?

MAL-2026-12711 is a malicious package in devplatform-hooks, published on 5 Aug 2026. 

### Official description

On require() of devplatform-hooks, index.js loads _init.js, which selects a platform-specific payload URL and fetches an executable from obfuscated Cloudflare Workers hosts (oob-worker.cf101-adf.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev). The destination hostnames are assembled at runtime from split string fragments joined together to evade static inspection. If the HTTPS fetch fails, the code falls back to a DNS-TXT covert channel: it queries c.<domain> under sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru for a chunk count, iteratively resolves N.<domain> TXT records, concatenates and base64-decodes the responses into a binary. The fetched bytes are written to /var/tmp or %TEMP% under disguised names (.cache_<hex>, dotnet_diag_<hex>.exe), chmod 0755, then executed detached via cp.spawn("/bin/sh", ["-c", path+" &"], {detached:true}) or the Windows equivalent. The package name, the obfuscation of destinations, the DNS-TXT covert transport, the disguised drop paths, and the detached execution together constitute a remote code execution dropper triggered on any install or import of this package.

## What should I do about MAL-2026-12711?

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-2026-12711 is a malicious package: devplatform-hooks (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-2026-12711/ (Markdown: https://insights.sbomify.com/MAL-2026-12711/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12711

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-12711/
Summaries are generated and may contain mistakes; the official description above is the record.