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

ARM