O365_Exchange_New-InboxRule
ID: 100234
Description:
New-Inbox Rule - KLK
Repository: Fluency Group: Office365 Type: event
Default Status:
Enabled
| Tags: | |
|---|---|
| O365 | exchange |
Selector:
Query:
Filters:
| Field | MUST hit |
|---|---|
| @sender | office365 |
| @fields.Operation | New-InboxRule |
| @fields.Workload | Exchange |
| Field | MUST NOT hit |
|---|---|
Behavior Rule:
| Key | Type | Behavior Category |
|---|---|---|
| @fields.UserId | username | security alert |
Risks:
| Risks | Base Score | Dimension |
|---|---|---|
| Timeline | 0 | - |
Attributes:
| Alias | Key |
|---|---|
| IP | @fields.ClientIP |
| City | @fields._ip.city |
| Country | @fields._ip.country |
| UserName | @fields.UserId |
| RuleID | @fields.Id |
| ISP | @fields._ip.isp |
Correlation Rules:
First Occurrence:
| Name | Window | Fields |
|---|---|---|
| NewUser | 30 days | @fields.UserId |
| Risks: | ML_NEW_USER |
Aggregation:
| Name | Window | Field | AggType | Match |
|---|---|---|---|---|
| MultipleInboxRules | 1 hour | @fields.Id | cardinality | gt 1 |
| Risks: | ALERT_NORMAL |
History:
| User | Date |
|---|---|
| — | 2021 Apr 15 09:02:15 EDT |
| ke*y@fluencysecurity.com | 2021 Jun 24 10:26:26 EDT |
| ke*y@fluencysecurity.com | 2022 Feb 18 01:04:09 EST |
| ke*y@fluencysecurity.com | 2022 Feb 18 01:06:05 EST |
This page was automatically created/formatted on Wed, 2022 May 4 21:43:53 EDT, from rule_dump.json (4d88bffdfb1cea26b3985f2193033606)