> 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/suspicious-ml-model-download.md).

# Suspicious ML Model Download

### Synopsis

| Field                | Value                                                                                                   |
| -------------------- | ------------------------------------------------------------------------------------------------------- |
| Activation Period    | 14 Days                                                                                                 |
| Training Period      | 30 Days                                                                                                 |
| Test Period          | N/A (single event)                                                                                      |
| 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                                                                                                   |
| Detector Tags        | Cloud AI Infrastructure Analytics                                                                       |
| ATT\&CK Tactic       | Collection (TA0009)                                                                                     |
| ATT\&CK Technique    | Data from Cloud Storage (T1530)                                                                         |
| Severity             | Informational                                                                                           |

### Description

A model artifact was accessed from cloud storage by an identity that typically doesn't interact with model files. MITRE ATLAS Technique: AML.T0035 - ML Artifact Collection.

### Attacker's Goals

Adversaries may collect ML artifacts for exfiltration or for use in ML Attack Staging.

### Investigative actions

* Examine the bucket to determine which model was accessed.
* Verify that this command was executed by a trusted source.

### Variations

<details>

<summary>Suspicious First-Time AI Model Download by Identity</summary>

**Synopsis**

| Field             | Value                           |
| ----------------- | ------------------------------- |
| ATT\&CK Tactic    | Collection (TA0009)             |
| ATT\&CK Technique | Data from Cloud Storage (T1530) |
| Severity          | Medium                          |

**Description**

A model artifact was accessed from cloud storage by an identity that did not interact with model files recently.

**Attacker's Goals**

Adversaries may collect ML artifacts for exfiltration or for use in ML Attack Staging.

**Investigative actions**

* Examine the bucket to determine which model was accessed.
* Verify that this command was executed by a trusted source.

</details>


---

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