Detection rules › Kusto
Palo Alto Prisma Cloud - High risk score alert
'Detects alerts with high risk score value.'
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Initial Access |
Rule body
id: 617b02d8-0f47-4f3c-afed-1926a45e7b28
name: Palo Alto Prisma Cloud - High risk score alert
description: |
'Detects alerts with high risk score value.'
severity: Medium
status: Available
requiredDataConnectors:
- connectorId: PaloAltoPrismaCloud
dataTypes:
- PaloAltoPrismaCloud
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
- InitialAccess
relevantTechniques:
- T1133
query: |
PaloAltoPrismaCloud
| where Reason =~ 'NEW_ALERT'
| where Status =~ 'open'
| extend r_score = 0.85 * toint(RiskDetailRiskScoreMaxScore)
| extend i_RiskDetailRiskScoreScore = toint(RiskDetailRiskScoreScore)
| where i_RiskDetailRiskScoreScore > r_score
| extend AccountCustomEntity = UserName
entityMappings:
- entityType: Account
fieldMappings:
- identifier: Name
columnName: AccountCustomEntity
version: 1.0.1
kind: Scheduled
Stages and Predicates
Stage 1: source
PaloAltoPrismaCloud
Stage 2: where
| where Reason =~ 'NEW_ALERT'
Stage 3: where
| where Status =~ 'open'
Stage 4: extend
| extend r_score = 0.85 * toint(RiskDetailRiskScoreMaxScore)
Stage 5: extend
| extend i_RiskDetailRiskScoreScore = toint(RiskDetailRiskScoreScore)
Stage 6: where
| where i_RiskDetailRiskScoreScore > r_score
Stage 7: extend
| extend AccountCustomEntity = UserName
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
Reason | eq |
| field:"Reason" kind:eq value:"NEW_ALERT" |
Status | eq |
| field:"Status" kind:eq value:"open" |
i_RiskDetailRiskScoreScore | cross_field_compare |
| field:"i_RiskDetailRiskScoreScore" kind:cross_field_compare value:"r_score" |
Output fields
These fields are emitted when the rule matches.
| Field | Source |
|---|---|
r_score | extend |
i_RiskDetailRiskScoreScore | extend |
AccountCustomEntity | extend |