> 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/ping_scan_ext-int.md).

# ping\_scan\_ext-int

**Explanation**

The ping\_scan\_ext-int event monitors for external to internal ping scans on the network. It detects when an external entity is trying to map out the internal infrastructure by pinging various IP addresses.

**What to Look For**

When examining the results of the ping\_scan\_ext-int event, look for any IP addresses that appear to be targets of the ping scan from the external IP. Additionally, look for any patterns or anomalies in the network traffic that could indicate an attempt to map out the network. It is important to tighten network security by restricting external access to the internal network and reviewing firewall rules to block such scans.

**Related MITRE ATT\&CK Categories**

[Reconnaissance: Active Scanning, Technique T1595 - Enterprise](https://attack.mitre.org/techniques/T1595)


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