> For the complete documentation index, see [llms.txt](https://docs.fusion.vectra.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fusion.vectra.ai/detection-models/library/reconnaissance/rockwellics_tcp_scan_internal_internal.md).

# rockwellics\_tcp\_scan\_internal\_internal

**Explanation**

This NDM is designed to detect scanning for Rockwell Automation ICS systems on TCP port 44818 inside a customer's network. Rockwell Automation provides programmable controllers for industrial applications.

**What to Look For**

Unauthorized scanning activity launched inside your network may be an indication that your network is compromised. Investigate hosts that are the source of this sort of activity in order to make sure that it is authorized and expected, and the hosts have not been compromised. Authorized scanners should be labeled in Netography Fusion so that scanning events do not trigger for them.

**Related MITRE ATT\&CK Categories**

[Discovery: Network Service Discovery, Technique T1046 - Enterprise](https://attack.mitre.org/techniques/T1046)


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