> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/analytics-alerts/alerts-by-name/unusual-internal-access-to-network-device-management-interface.md).

# Unusual internal access to network device management interface

### Synopsis

| Field                | Value                                                      |
| -------------------- | ---------------------------------------------------------- |
| Activation Period    | 14 Days                                                    |
| Training Period      | 30 Days                                                    |
| Test Period          | N/A (single event)                                         |
| Deduplication Period | 1 Day                                                      |
| Required Data        | XDR Agent                                                  |
| ATT\&CK Tactic       | Lateral Movement (TA0008), Discovery (TA0007)              |
| ATT\&CK Technique    | Remote Services (T1021), Network Service Discovery (T1046) |
| Severity             | Informational                                              |

### Description

Unusual internal access to Palo Alto Networks device on management port.

### Attacker's Goals

Attackers aim to compromise network infrastructure to redirect traffic, create illegitimate VPN tunnels, modify ACLs (Access Control Lists) to bypass segmentation, or perform Man-in-the-Middle (MitM) attacks.

### Investigative actions

* Identify the source address and machine role (e.g., Is it a known Admin Jump Host or a standard workstation?).
* Validate if a change request exists for the target network device at the time of the event.
* Check the connection protocol (SSH/HTTPS vs. insecure Telnet/HTTP) and the port used.
* Review the login status: Was the authentication successful or failed?
* Investigate the source machine for network scanning tools or terminal clients (e.g., PuTTY, SecureCRT).
* Analyze the causality chain: Did a suspicious process launch the connection?.
* Check if the user associated with the source address has network administration privileges.


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