Google Threat Intelligence - Threat Hunting IP

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Id	7edb2abb-7ef7-4685-92eb-a628703ccf9f
Rulename	Google Threat Intelligence - Threat Hunting IP
Description	Google Threat Intelligence IP correlation.
Severity	Medium
Tactics	CommandAndControl
Techniques	T1071
Required data connectors	ThreatIntelligence
Kind	Scheduled
Query frequency	30m
Query period	1d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Google Threat Intelligence/Analytic Rules/ThreatHunting/ThreatHuntIp.yaml
Version	1.0.0
Arm template	7edb2abb-7ef7-4685-92eb-a628703ccf9f.json

KQL

let ioc_lookBack = 1d;
_Im_NetworkSession
| where isnotempty(DstIpAddr)
| join kind=inner (
ThreatIntelIndicators
| where ObservableKey == 'ipv4-addr:value'
| where isnotempty(ObservableValue)
| where SourceSystem == "Google Threat Intelligence"
| where TimeGenerated >= ago(ioc_lookBack)
| summarize LatestIndicatorTime = arg_max(TimeGenerated, *) by Id
| where IsActive == true and (isnull(ValidUntil) or ValidUntil > now())
) on $left.DstIpAddr == $right.ObservableValue
| project NetworkIP=ObservableValue, Description=Data.description, Type, TimeGenerated

YAML

query: |
  let ioc_lookBack = 1d;
  _Im_NetworkSession
  | where isnotempty(DstIpAddr)
  | join kind=inner (
  ThreatIntelIndicators
  | where ObservableKey == 'ipv4-addr:value'
  | where isnotempty(ObservableValue)
  | where SourceSystem == "Google Threat Intelligence"
  | where TimeGenerated >= ago(ioc_lookBack)
  | summarize LatestIndicatorTime = arg_max(TimeGenerated, *) by Id
  | where IsActive == true and (isnull(ValidUntil) or ValidUntil > now())
  ) on $left.DstIpAddr == $right.ObservableValue
  | project NetworkIP=ObservableValue, Description=Data.description, Type, TimeGenerated  
entityMappings:
- entityType: IP
  fieldMappings:
  - columnName: NetworkIP
    identifier: Address
triggerThreshold: 0
name: Google Threat Intelligence - Threat Hunting IP
severity: Medium
relevantTechniques:
- T1071
alertDetailsOverride:
  alertDisplayNameFormat: Google Threat Intelligence Match
  alertDescriptionFormat: Correlation found from the {{Type}} table.
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    lookbackDuration: 1h
    matchingMethod: AllEntities
    enabled: true
    reopenClosedIncident: false
queryPeriod: 1d
tactics:
- CommandAndControl
requiredDataConnectors:
- connectorId: ThreatIntelligence
  dataTypes:
  - ThreatIntelIndicators
queryFrequency: 30m
version: 1.0.0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Google Threat Intelligence/Analytic Rules/ThreatHunting/ThreatHuntIp.yaml
id: 7edb2abb-7ef7-4685-92eb-a628703ccf9f
kind: Scheduled
description: |
    'Google Threat Intelligence IP correlation.'
eventGroupingSettings:
  aggregationKind: AlertPerResult
triggerOperator: gt

ARM