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

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

ARM