> 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/multiple-failed-logins-from-a-single-ip.md).

# Multiple failed logins from a single IP

### Synopsis

| Field                | Value                                                                                                   |
| -------------------- | ------------------------------------------------------------------------------------------------------- |
| Activation Period    | 14 Days                                                                                                 |
| Training Period      | 30 Days                                                                                                 |
| Test Period          | 1 Hour                                                                                                  |
| Deduplication Period | 5 Days                                                                                                  |
| Required Data        | <p>Requires one of the following data sources:<br>AWS Audit Log OR Azure Audit Log OR Gcp Audit Log</p> |
| Detection Modules    | Cloud                                                                                                   |
| ATT\&CK Tactic       | Initial Access (TA0001)                                                                                 |
| ATT\&CK Technique    | Trusted Relationship (T1199), Valid Accounts: Cloud Accounts (T1078.004)                                |
| Severity             | Informational                                                                                           |

### Description

Multiple failed logins were observed in a short period of time from a single external IP. The IP is not a known identity provider.

### Attacker's Goals

Gain initial access to the cloud console.

### Investigative actions

* Check if the IP is a known IP.
* Check if a successful login from the same IP occurred after the failed login attempts.

### Variations

<details>

<summary>Multiple failed logins from an unknown IP</summary>

**Synopsis**

| Field             | Value                                                                    |
| ----------------- | ------------------------------------------------------------------------ |
| ATT\&CK Tactic    | Initial Access (TA0001)                                                  |
| ATT\&CK Technique | Trusted Relationship (T1199), Valid Accounts: Cloud Accounts (T1078.004) |
| Severity          | Medium                                                                   |

**Description**

Multiple failed logins were observed in a short period of time from a single external IP. The IP is not a known identity provider. The IP is not a known IP in the organization. This could indicate on an active brute force attempt.

**Attacker's Goals**

Gain initial access to the cloud console.

**Investigative actions**

* Check if the IP is a known IP.
* Check if a successful login from the same IP occurred after the failed login attempts.

</details>

<details>

<summary>Multiple failed logins from a single IP by a compromised AWS access key</summary>

**Synopsis**

| Field             | Value                                                                    |
| ----------------- | ------------------------------------------------------------------------ |
| ATT\&CK Tactic    | Initial Access (TA0001)                                                  |
| ATT\&CK Technique | Trusted Relationship (T1199), Valid Accounts: Cloud Accounts (T1078.004) |
| Severity          | High                                                                     |

**Description**

Multiple failed logins were observed in a short period of time from a single external IP. The IP is not a known identity provider.

**Attacker's Goals**

Gain initial access to the cloud console.

**Investigative actions**

* Check if the IP is a known IP.
* Check if a successful login from the same IP occurred after the failed login attempts.

</details>


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