AD_Password_Reset_Multiple
ID: 100472
Description:
EventID 4724: An attempt was made to reset an accounts password (ID: T1531)
An aggregation rule to detect mass password change, when one account (SubjectUserName) performs more than ten (10) password changes per day for another account (TargetUserName).
Note: This event is different than EventID 4723 (Password self-change)
Ref: https://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=4724
Repository: Group: AD Type: event
Default Status:
Enabled
| Tags: |
|---|
| AD |
Selector:
Query:
Filters:
| Field | MUST hit |
|---|---|
| @fields.EventID | 4724 |
| Field | MUST NOT hit |
|---|---|
Behavior Rule:
| Key | Type | Behavior Category |
|---|---|---|
| @fields.SubjectUserName | username | account login |
Risks:
| Risks | Base Score | Dimension |
|---|---|---|
Attributes:
| Alias | Key |
|---|---|
| TargetUserName | @fields.TargetUserName |
| TargetDomainName | @fields.TargetDomainName |
| SubjectFullName | @fields.SubjectFullName |
| TargetFullName | @fields.TargetFullName |
Correlation Rules:
Aggregation:
| Name | Window | Field | AggType | Match |
|---|---|---|---|---|
| MultipleAccts | 1 hour | @fields.TargetUserName | cardinality | gt 10 |
| Risks: | ALERT_NORMAL | ALERT_POLICY |
History:
| User | Date |
|---|---|
| ke*y@fluencysecurity.com | 2021 Mar 1 02:14:59 EST |
| ho*d@fluencysecurity.com | 2021 Sep 30 10:27:32 EDT |
| ho*d@fluencysecurity.com | 2021 Oct 11 15:18:03 EDT |
This page was automatically created/formatted on Wed, 2022 May 4 21:43:53 EDT, from rule_dump.json (4d88bffdfb1cea26b3985f2193033606)