Rules: Azure - High Risk Sign-In (Aggregate)
Detects Azure high aggregate risk for a user sign in. https://docs.microsoft.com/en-us/azure/active-directory/identity-protection/troubleshooting-identity-protection-faq
| Detail | Value |
|---|---|
| Type | Templated Match |
| Category | Initial Access |
| Apply Risk to Entities | device_hostname, device_ip, user_username, srcDevice_ip |
| Signal Name | Azure - High Risk Sign-In (Aggregate) |
| Summary Expression | A sign-in from user: {{user_username}} on IP: {{device_ip}} with a high aggregate risk level was detected. |
| Score/Severity | Static: 3 |
| Enabled by Default | True |
| Prototype | False |
| Tags | _mitreAttackTactic:TA0001, _mitreAttackTactic:TA0003, _mitreAttackTactic:TA0004, _mitreAttackTactic:TA0005, _mitreAttackTactic:TA0042, _mitreAttackTechnique:T1078, _mitreAttackTechnique:T1586, _mitreAttackTechnique:T1586.002, _mitreAttackTechnique:T1078.002, _mitreAttackTechnique:T1078.004 |
| Origin | Field |
|---|---|
| Normalized Schema | device_hostname |
| Normalized Schema | device_ip |
| Direct from Record | fields['properties.riskLevelAggregated'] |
| Direct from Record | fields['riskLevelAggregated'] |
| Normalized Schema | metadata_product |
| Normalized Schema | metadata_vendor |
| Normalized Schema | objectType |
| Normalized Schema | srcDevice_ip |
| Normalized Schema | success |
| Normalized Schema | user_username |