> 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/remote-account-enumeration.md).

# Remote account enumeration

### Synopsis

| Field                | Value                                          |
| -------------------- | ---------------------------------------------- |
| Activation Period    | 14 Days                                        |
| Training Period      | 30 Days                                        |
| Test Period          | 10 Minutes                                     |
| Deduplication Period | 1 Day                                          |
| Required Data        | XDR Agent                                      |
| Detection Modules    | Identity Analytics                             |
| ATT\&CK Tactic       | Discovery (TA0007), Credential Access (TA0006) |
| ATT\&CK Technique    | Account Discovery (T1087), Brute Force (T1110) |
| Severity             | Informational                                  |

### Description

Multiple non-existing accounts failed to remotely log in to a host in a short period of time. This may indicate an attacker is trying to remotely enumerate accounts.

### Attacker's Goals

Discover valid accounts to gain credentials.

### Investigative actions

Check if the login attempts were part of a legitimate misunderstanding of the system or part of an attack.

### Variations

<details>

<summary>Suspicious Remote domain account enumeration</summary>

**Synopsis**

| Field             | Value                                          |
| ----------------- | ---------------------------------------------- |
| ATT\&CK Tactic    | Discovery (TA0007), Credential Access (TA0006) |
| ATT\&CK Technique | Account Discovery (T1087), Brute Force (T1110) |
| Severity          | Medium                                         |

**Description**

Multiple non-existing accounts failed to remotely log in to a host in a short period of time. This may indicate an attacker is trying to remotely enumerate accounts.

**Attacker's Goals**

Discover valid accounts to gain credentials.

**Investigative actions**

Check if the login attempts were part of a legitimate misunderstanding of the system or part of an attack.

</details>

<details>

<summary>Remote account enumeration on domain accounts</summary>

**Synopsis**

| Field             | Value                                          |
| ----------------- | ---------------------------------------------- |
| ATT\&CK Tactic    | Discovery (TA0007), Credential Access (TA0006) |
| ATT\&CK Technique | Account Discovery (T1087), Brute Force (T1110) |
| Severity          | Low                                            |

**Description**

Multiple non-existing accounts failed to remotely log in to a host in a short period of time. This may indicate an attacker is trying to remotely enumerate accounts.

**Attacker's Goals**

Discover valid accounts to gain credentials.

**Investigative actions**

Check if the login attempts were part of a legitimate misunderstanding of the system or part of an attack.

</details>


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