O365_Multiple_Failed_MFA_Challenges
ID: 100268
Description:
A user was unable to login due to multiple failed MFA challenges
Repository: Group: Office365 Type: event
Default Status:
Enabled
| Tags: | ||
|---|---|---|
| O365 | M365 | Office365 |
Selector:
Query:
Filters:
| Field | MUST hit |
|---|---|
| @fields.LogonError | UserStrongAuthClientAuthNRequiredInterrupt |
| @fields.Workload | AzureActiveDirectory |
| Field | MUST NOT hit |
|---|---|
| @fields.ExtendedPropertiesFields.RequestType | SAS:BeginAuth |
Behavior Rule:
| Key | Type | Behavior Category |
|---|---|---|
| @fields.UserId | username | account login |
Risks:
| Risks | Base Score | Dimension |
|---|---|---|
| Timeline | 0 | - |
Attributes:
| Alias | Key |
|---|---|
| Username | @fields.UserId |
| IP | @fields.ClientIP |
| City | @fields._ip.city |
| Country | @fields._ip.country |
| ISP | @fields._ip.isp |
Correlation Rules:
Aggregation:
| Name | Window | Field | AggType | Match |
|---|---|---|---|---|
| FailedLogins | 1 hour | count | gt 10 | |
| Risks: | ALERT_POLICY |
History:
| User | Date |
|---|---|
| — | 2021 May 20 03:08:04 EDT |
| em*n@fluencysecurity.com | 2021 Jun 1 22:09:32 EDT |
| em*n@fluencysecurity.com | 2021 Jun 1 22:12:52 EDT |
| ho*d@fluencysecurity.com | 2021 Jun 15 09:47:28 EDT |
This page was automatically created/formatted on Wed, 2022 May 4 21:43:53 EDT, from rule_dump.json (4d88bffdfb1cea26b3985f2193033606)