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The attacker sends a spearphishing email to a user. The email contains a link which points to a website that eventually presents the user a download of an MS Office document. This document contains a malicious macro. The macro triggers one of the ASR rules. This detection looks for Office ASR violations triggered by an Office document opened from a browser. Note: be aware that you need to have the proper ASR rules enabled for this detection to work.
| Attribute | Value |
|---|---|
| Type | Analytic Rule |
| Solution | FalconFriday |
| ID | 30580043-2451-4d35-b49f-065728529f4a |
| Severity | Medium |
| Status | Available |
| Kind | Scheduled |
| Tactics | InitialAccess |
| Techniques | T1566.002 |
| Required Connectors | MicrosoftThreatProtection |
| Source | View on GitHub |
This content item queries data from the following tables:
| Table | Selection Criteria | Transformations | Ingestion API | Lake-Only |
|---|---|---|---|---|
DeviceEvents |
ActionType contains "Office" |
✓ | ✗ | ? |
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