# MAL-2026-12455: Malicious code in statist-browser-typed-client-twork.tsales.nitro.metrics (npm)


- **Type:** Malicious package
- **Package:** `statist-browser-typed-client-twork.tsales.nitro.metrics` (npm)
- **Published:** 5 Aug 2026

## What is MAL-2026-12455?

MAL-2026-12455 is a malicious package in statist-browser-typed-client-twork.tsales.nitro.metrics, published on 5 Aug 2026. 

### Official description

On require(), index.js loads _shim.js which selects a platform-specific payload path, fetches a native binary from Cloudflare Workers subdomains whose hostnames are assembled at runtime from string-array fragments joined with.join(""), or falls back to a DNS-TXT covert channel that queries c.<domain> and N.<domain> and base64-decodes the concatenated TXT records into binary. The retrieved bytes are written to /var/tmp or %TEMP% under a disguised name (.cache_<rand> on Unix, dotnet_diag_<rand>.exe on Windows), chmod'd to 0o755, and spawned detached via /bin/sh -c or cmd /c start. There is no pinning, no hash or signature verification, and the delivery hosts are anonymous Cloudflare Workers subdomains and a DNS-TXT channel — not a publisher-owned release surface. The hostname obfuscation and TXT-record covert channel are inconsistent with any legitimate observability or telemetry function.

## What should I do about MAL-2026-12455?

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-2026-12455 is a malicious package: statist-browser-typed-client-twork.tsales.nitro.metrics (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-2026-12455/ (Markdown: https://insights.sbomify.com/MAL-2026-12455/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12455

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-12455/
Summaries are generated and may contain mistakes; the official description above is the record.