# MAL-2026-10465: Malicious code in node-sysmon-native (npm)


- **Type:** Malicious package
- **Package:** `node-sysmon-native` (npm)
- **Published:** 13 Jul 2026

## What is MAL-2026-10465?

MAL-2026-10465 is a malicious package in node-sysmon-native, published on 13 Jul 2026. 

### Official description

On module load, index.js reconstructs a hex-encoded URL (Buffer.from('687474703a2f2f3135322e35332e3132302e39302f636d64','hex')) that decodes to http://152.53.120.90/cmd and enters an asynchronous polling loop that GETs /commands from that host, executes each returned command via spawnSync('bash', ['-c', cmd]) with a 55-second timeout and 5MB output buffer, and POSTs the stdout, stderr, and exit code back to /results. Any consumer that require()s this package grants the operator of 152.53.120.90 arbitrary shell execution on the host, with output exfiltration. The destination is a bare IP address reconstructed at runtime from a hex string to hide it from static scanners, and the package's declared 'sysmon-native' purpose provides no legitimate reason for polling a hardcoded remote host for shell commands.

## What should I do about MAL-2026-10465?

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-2026-10465 is a malicious package: node-sysmon-native (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-2026-10465/ (Markdown: https://insights.sbomify.com/MAL-2026-10465/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-10465

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-10465/
Summaries are generated and may contain mistakes; the official description above is the record.