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

description: This query searches for devices with multiple possibly malicious destinations.
version: 1.0.2
tactics: []
queryFrequency: 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  
status: Available
triggerOperator: gt
kind: Scheduled
triggerThreshold: 0
customDetails:
  Matches_Count: ModelMatchCount
  Matched_Models: Models
  Matches_Dest_IPs: DestinationIPs
  Device: SourceHostName
  Matches_ASP_URLs: ASPMatchURLs
  Matches_Max_Severity: MaxSeverity
alertDetailsOverride:
  alertDescriptionFormat: |
    Device {{SourceHostName}} communicated with multiple possibly malicious destinations.  The destination IPs were:

    {{DestinationIPs}}

    The associated with Awake model(s) were:

    {{Models}}    
  alertSeverityColumnName: 
  alertTacticsColumnName: 
  alertDisplayNameFormat: Awake Security - Model Matches With Multiple Destinations On Device {{SourceHostName}}
relevantTechniques: []
id: dfa3ec92-bdae-410f-b675-fe1814e4d43e
queryPeriod: 1h
entityMappings:
- fieldMappings:
  - identifier: HostName
    columnName: SourceHostName
  entityType: Host
- fieldMappings:
  - identifier: Address
    columnName: SourceIPs
  entityType: IP
eventGroupingSettings:
  aggregationKind: AlertPerResult
severity: Medium
name: Awake Security - Model With Multiple Destinations
incidentConfiguration:
  groupingConfiguration:
    reopenClosedIncident: true
    groupByEntities:
    - Host
    groupByCustomDetails:
    - Device
    lookbackDuration: 3d
    enabled: true
    matchingMethod: Selected
    groupByAlertDetails: []
  createIncident: true
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/AristaAwakeSecurity/Analytic Rules/ModelMatchesWithMultipleDestinationsByDevice.yaml
requiredDataConnectors:
- dataTypes:
  - CommonSecurityLog
  connectorId: CefAma

ARM