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

queryPeriod: 1h
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  
name: Awake Security - Model With Multiple Destinations
entityMappings:
- fieldMappings:
  - columnName: SourceHostName
    identifier: HostName
  entityType: Host
- fieldMappings:
  - columnName: SourceIPs
    identifier: Address
  entityType: IP
eventGroupingSettings:
  aggregationKind: AlertPerResult
queryFrequency: 1h
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/AristaAwakeSecurity/Analytic Rules/ModelMatchesWithMultipleDestinationsByDevice.yaml
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: 
requiredDataConnectors:
- connectorId: CefAma
  dataTypes:
  - CommonSecurityLog
description: This query searches for devices with multiple possibly malicious destinations.
kind: Scheduled
incidentConfiguration:
  groupingConfiguration:
    matchingMethod: Selected
    reopenClosedIncident: true
    groupByEntities:
    - Host
    groupByAlertDetails: []
    lookbackDuration: 3d
    groupByCustomDetails:
    - Device
    enabled: true
  createIncident: true
version: 1.0.2
status: Available
severity: Medium
relevantTechniques: []
triggerOperator: gt
triggerThreshold: 0
customDetails:
  Device: SourceHostName
  Matches_Dest_IPs: DestinationIPs
  Matches_ASP_URLs: ASPMatchURLs
  Matched_Models: Models
  Matches_Count: ModelMatchCount
  Matches_Max_Severity: MaxSeverity
tactics: []
id: dfa3ec92-bdae-410f-b675-fe1814e4d43e

ARM