Awake Security - Model With Multiple Destinations

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Id	dfa3ec92-bdae-410f-b675-fe1814e4d43e
Rulename	Awake Security - Model With Multiple Destinations
Description	This query searches for devices with multiple possibly malicious destinations.
Severity	Medium
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/AristaAwakeSecurity/Analytic Rules/ModelMatchesWithMultipleDestinationsByDevice.yaml
Version	1.0.2
Arm template	dfa3ec92-bdae-410f-b675-fe1814e4d43e.json

KQL

CommonSecurityLog | where DeviceVendor == "Arista Networks" and DeviceProduct == "Awake Security"
| summarize StartTime=min(TimeGenerated), EndTime=max(TimeGenerated), Models=make_set(Activity), ASPMatchURLs=make_set(DeviceCustomString2), SourceIPs=make_set(SourceIP),
  DestinationIPs=make_set(DestinationIP), ModelMatchCount=sum(EventCount), MaxSeverity=max(toint(LogSeverity)) by SourceHostName
| where array_length(DestinationIPs) > 1

YAML

name: Awake Security - Model With Multiple Destinations
kind: Scheduled
tactics: []
triggerThreshold: 0
triggerOperator: gt
version: 1.0.2
status: Available
alertDetailsOverride:
  alertDisplayNameFormat: Awake Security - Model Matches With Multiple Destinations On Device {{SourceHostName}}
  alertDescriptionFormat: |
    Device {{SourceHostName}} communicated with multiple possibly malicious destinations.  The destination IPs were:

    {{DestinationIPs}}

    The associated with Awake model(s) were:

    {{Models}}    
  alertTacticsColumnName: 
  alertSeverityColumnName: 
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    reopenClosedIncident: true
    enabled: true
    matchingMethod: Selected
    groupByAlertDetails: []
    groupByEntities:
    - Host
    groupByCustomDetails:
    - Device
    lookbackDuration: 3d
queryFrequency: 1h
id: dfa3ec92-bdae-410f-b675-fe1814e4d43e
requiredDataConnectors:
- connectorId: CefAma
  dataTypes:
  - CommonSecurityLog
eventGroupingSettings:
  aggregationKind: AlertPerResult
relevantTechniques: []
description: This query searches for devices with multiple possibly malicious destinations.
customDetails:
  Matches_Max_Severity: MaxSeverity
  Matches_ASP_URLs: ASPMatchURLs
  Matched_Models: Models
  Device: SourceHostName
  Matches_Count: ModelMatchCount
  Matches_Dest_IPs: DestinationIPs
entityMappings:
- entityType: Host
  fieldMappings:
  - columnName: SourceHostName
    identifier: HostName
- entityType: IP
  fieldMappings:
  - columnName: SourceIPs
    identifier: Address
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/AristaAwakeSecurity/Analytic Rules/ModelMatchesWithMultipleDestinationsByDevice.yaml
queryPeriod: 1h
severity: Medium
query: |
  CommonSecurityLog | where DeviceVendor == "Arista Networks" and DeviceProduct == "Awake Security"
  | summarize StartTime=min(TimeGenerated), EndTime=max(TimeGenerated), Models=make_set(Activity), ASPMatchURLs=make_set(DeviceCustomString2), SourceIPs=make_set(SourceIP),
    DestinationIPs=make_set(DestinationIP), ModelMatchCount=sum(EventCount), MaxSeverity=max(toint(LogSeverity)) by SourceHostName
  | where array_length(DestinationIPs) > 1

ARM