> 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/a-user-uploaded-malware-to-sharepoint-or-onedrive.md).

# A user uploaded malware to SharePoint or OneDrive

### Synopsis

| Field                | Value                                                                    |
| -------------------- | ------------------------------------------------------------------------ |
| Activation Period    | 14 Days                                                                  |
| Training Period      | 30 Days                                                                  |
| Test Period          | 3 Hours                                                                  |
| Deduplication Period | 1 Day                                                                    |
| Required Data        | Office 365 Audit                                                         |
| Detection Modules    | Identity Threat Module, SaaS Threat Detection                            |
| Detector Tags        | Data Detection & Response                                                |
| ATT\&CK Tactic       | Lateral Movement (TA0008), Execution (TA0002)                            |
| ATT\&CK Technique    | Taint Shared Content (T1080), User Execution: Malicious File (T1204.002) |
| Severity             | Low                                                                      |

### Description

A user uploaded a file that was classified as malware to SharePoint or OneDrive.

### Attacker's Goals

An attacker may upload malware to a shared location to gain execution and move laterally.

### Investigative actions

* Look for signs that the user account is compromised (e.g. abnormal logins, unusual activity).
* Check the file that was uploaded for any malicious indicators.
* Follow further actions done by the account.

### Variations

<details>

<summary>A user uploaded malware to SharePoint or OneDrive with suspicious characteristics</summary>

**Synopsis**

| Field             | Value                                                                    |
| ----------------- | ------------------------------------------------------------------------ |
| ATT\&CK Tactic    | Lateral Movement (TA0008), Execution (TA0002)                            |
| ATT\&CK Technique | Taint Shared Content (T1080), User Execution: Malicious File (T1204.002) |
| Severity          | Medium                                                                   |

**Description**

A user uploaded a file that was classified as malware to SharePoint or OneDrive with some additional suspicious characteristics.

**Attacker's Goals**

An attacker may upload malware to a shared location to gain execution and move laterally.

**Investigative actions**

* Look for signs that the user account is compromised (e.g. abnormal logins, unusual activity).
* Check the file that was uploaded for any malicious indicators.
* Follow further actions done by the account.

</details>

<details>

<summary>A user uploaded a malicious payload to SharePoint or OneDrive</summary>

**Synopsis**

| Field             | Value                                                                    |
| ----------------- | ------------------------------------------------------------------------ |
| ATT\&CK Tactic    | Lateral Movement (TA0008), Execution (TA0002)                            |
| ATT\&CK Technique | Taint Shared Content (T1080), User Execution: Malicious File (T1204.002) |
| Severity          | Informational                                                            |

**Description**

A user uploaded a file that was classified as malware to SharePoint or OneDrive. The file was labelled as malicious by Microsoft's file scanning engine.

**Attacker's Goals**

An attacker may upload malware to a shared location to gain execution and move laterally.

**Investigative actions**

* Look for signs that the user account is compromised (e.g. abnormal logins, unusual activity).
* Check the file that was uploaded for any malicious indicators.
* Follow further actions done by the account.

</details>


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