> 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/impossible-traveler-vpn.md).

# Impossible traveler - VPN

### Synopsis

| Field                | Value                                                                                                       |
| -------------------- | ----------------------------------------------------------------------------------------------------------- |
| Activation Period    | 14 Days                                                                                                     |
| Training Period      | 30 Days                                                                                                     |
| Test Period          | 3 Hours                                                                                                     |
| Deduplication Period | 7 Days                                                                                                      |
| Required Data        | <p>Requires one of the following data sources:<br>Palo Alto Networks Global Protect OR Third-Party VPNs</p> |
| Detection Modules    | Identity Analytics                                                                                          |
| ATT\&CK Tactic       | Credential Access (TA0006), Resource Development (TA0042)                                                   |
| ATT\&CK Technique    | Compromise Accounts (T1586), Brute Force: Password Guessing (T1110.001)                                     |
| Severity             | Low                                                                                                         |

### Description

A user connected to a VPN service from multiple remote countries in a short period of time, which should normally be impossible. This may indicate the account is compromised.

### Attacker's Goals

Gain user-account credentials.

### Investigative actions

Check if the user routed their traffic via a proxy, or shared their credentials with a remote employee.

### Variations

<details>

<summary>Possible Impossible traveler via VPN</summary>

**Synopsis**

| Field             | Value                                                                   |
| ----------------- | ----------------------------------------------------------------------- |
| ATT\&CK Tactic    | Credential Access (TA0006), Resource Development (TA0042)               |
| ATT\&CK Technique | Compromise Accounts (T1586), Brute Force: Password Guessing (T1110.001) |
| Severity          | Informational                                                           |

**Description**

A user connected to a VPN service from multiple remote countries in a short period of time, which should normally be impossible. This may indicate the account is compromised.

**Attacker's Goals**

Gain user-account credentials.

**Investigative actions**

Check if the user routed their traffic via a proxy, or shared their credentials with a remote employee.

</details>

<details>

<summary>VPN impossible traveler from a VPN or proxy</summary>

**Synopsis**

| Field             | Value                                                                   |
| ----------------- | ----------------------------------------------------------------------- |
| ATT\&CK Tactic    | Credential Access (TA0006), Resource Development (TA0042)               |
| ATT\&CK Technique | Compromise Accounts (T1586), Brute Force: Password Guessing (T1110.001) |
| Severity          | Informational                                                           |

**Description**

A user connected to a VPN service from multiple remote countries in a short period of time, which should normally be impossible. This may indicate the account is compromised.

**Attacker's Goals**

Gain user-account credentials.

**Investigative actions**

Check if the user routed their traffic via a proxy, or shared their credentials with a remote employee.

</details>

<details>

<summary>VPN impossible traveler with an unusual parameter</summary>

**Synopsis**

| Field             | Value                                                                   |
| ----------------- | ----------------------------------------------------------------------- |
| ATT\&CK Tactic    | Credential Access (TA0006), Resource Development (TA0042)               |
| ATT\&CK Technique | Compromise Accounts (T1586), Brute Force: Password Guessing (T1110.001) |
| Severity          | Medium                                                                  |

**Description**

A user connected to a VPN service from multiple remote countries in a short period of time, which should normally be impossible. This may indicate the account is compromised.

**Attacker's Goals**

Gain user-account credentials.

**Investigative actions**

Check if the user routed their traffic via a proxy, or shared their credentials with a remote employee.

</details>


---

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