Detection rules › Kusto
Sentinel One - Multiple alerts on host
'Detects when multiple alerts received from same host.'
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Initial Access |
Rule body
id: 47e427e6-61bc-4e24-8d16-a12871b9f939
name: Sentinel One - Multiple alerts on host
description: |
'Detects when multiple alerts received from same host.'
severity: High
status: Available
requiredDataConnectors:
- connectorId: SentinelOne
dataTypes:
- SentinelOne
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
- InitialAccess
relevantTechniques:
- T1190
query: |
SentinelOne
| where ActivityType == 3608
| extend RuleName = extract(@'Custom Rule:\s(.*?)\sin Group', 1, EventOriginalMessage)
| extend DstHostname = extract(@'detected on\s(\S+)\.', 1, EventOriginalMessage)
| summarize count() by DstHostname, bin(TimeGenerated, 15m)
| where count_ > 1
| extend HostCustomEntity = DstHostname
entityMappings:
- entityType: Host
fieldMappings:
- identifier: HostName
columnName: HostCustomEntity
version: 1.0.2
kind: Scheduled
Stages and Predicates
Stage 1: source
SentinelOne
Stage 2: where
| where ActivityType == 3608
Stage 3: extend
| extend RuleName = extract(@'Custom Rule:\s(.*?)\sin Group', 1, EventOriginalMessage)
Stage 4: extend
| extend DstHostname = extract(@'detected on\s(\S+)\.', 1, EventOriginalMessage)
Stage 5: summarize
| summarize count() by DstHostname, bin(TimeGenerated, 15m)
Stage 6: where
| where count_ > 1
Stage 7: extend
| extend HostCustomEntity = DstHostname
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
ActivityType | eq |
| field:"ActivityType" kind:eq value:"3608" |
count_ | gt |
| field:"count_" kind:gt value:"1" |
Output fields
These fields are emitted when the rule matches.
| Field | Source |
|---|---|
DstHostname | summarize |
HostCustomEntity | extend |