Infoblox - Many High Threat Level Single Query Detected

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Id	99278700-79ca-4b0f-b416-bf57ec699e1a
Rulename	Infoblox - Many High Threat Level Single Query Detected
Description	Single high threat level domain queried at least 200 times in 1 hour regardless of source. Customize query count, scheduling, responses and more. This rule depends on a parser based on a Kusto Function to work as expected called InfobloxCDC.
Severity	Medium
Tactics	Impact
Techniques	T1498 T1565
Required data connectors	CefAma
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Infoblox Cloud Data Connector/Analytic Rules/Infoblox-ManyHighThreatLevelSingleQueryDetected.yaml
Version	1.0.4
Arm template	99278700-79ca-4b0f-b416-bf57ec699e1a.json

KQL

let threshold = 200;
InfobloxCDC
| where DeviceEventClassID has_cs "RPZ"
| where ThreatLevel_Score >= 80
| summarize count() by DestinationDnsDomain
| where count_ > threshold
| join kind=inner (InfobloxCDC
  | where DeviceEventClassID has_cs "RPZ"
  | where ThreatLevel_Score >= 80
  ) on DestinationDnsDomain

YAML

queryPeriod: 1h
query: |
  let threshold = 200;
  InfobloxCDC
  | where DeviceEventClassID has_cs "RPZ"
  | where ThreatLevel_Score >= 80
  | summarize count() by DestinationDnsDomain
  | where count_ > threshold
  | join kind=inner (InfobloxCDC
    | where DeviceEventClassID has_cs "RPZ"
    | where ThreatLevel_Score >= 80
    ) on DestinationDnsDomain  
name: Infoblox - Many High Threat Level Single Query Detected
entityMappings:
- fieldMappings:
  - columnName: DestinationDnsDomain
    identifier: DomainName
  entityType: DNS
- fieldMappings:
  - columnName: ThreatProperty
    identifier: Name
  - columnName: ThreatClass
    identifier: Category
  entityType: Malware
queryFrequency: 1h
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Infoblox Cloud Data Connector/Analytic Rules/Infoblox-ManyHighThreatLevelSingleQueryDetected.yaml
requiredDataConnectors:
- connectorId: CefAma
  dataTypes:
  - CommonSecurityLog
description: |
    'Single high threat level domain queried at least 200 times in 1 hour regardless of source. Customize query count, scheduling, responses and more. This rule depends on a parser based on a Kusto Function to work as expected called [**InfobloxCDC**](https://aka.ms/sentinel-InfobloxCloudDataConnector-parser).'
kind: Scheduled
incidentConfiguration:
  createIncident: true
version: 1.0.4
eventGroupingSettings:
  aggregationKind: SingleAlert
status: Available
severity: Medium
relevantTechniques:
- T1498
- T1565
triggerOperator: gt
triggerThreshold: 0
customDetails:
  InfobloxB1PolicyName: InfobloxB1PolicyName
  InfobloxB1Network: InfobloxB1Network
  InfobloxB1FeedName: InfobloxB1FeedName
tactics:
- Impact
id: 99278700-79ca-4b0f-b416-bf57ec699e1a

ARM