Awake Security - Model With Multiple Destinations

Back


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

incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    lookbackDuration: 3d
    groupByEntities:
    - Host
    groupByAlertDetails: []
    groupByCustomDetails:
    - Device
    matchingMethod: Selected
    reopenClosedIncident: true
    enabled: true
description: This query searches for devices with multiple possibly malicious destinations.
tactics: []
version: 1.0.2
kind: Scheduled
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  
eventGroupingSettings:
  aggregationKind: AlertPerResult
severity: Medium
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/AristaAwakeSecurity/Analytic Rules/ModelMatchesWithMultipleDestinationsByDevice.yaml
queryPeriod: 1h
id: dfa3ec92-bdae-410f-b675-fe1814e4d43e
triggerOperator: gt
requiredDataConnectors:
- dataTypes:
  - CommonSecurityLog
  connectorId: CefAma
triggerThreshold: 0
name: Awake Security - Model With Multiple Destinations
customDetails:
  Matches_Count: ModelMatchCount
  Matches_ASP_URLs: ASPMatchURLs
  Matched_Models: Models
  Matches_Max_Severity: MaxSeverity
  Matches_Dest_IPs: DestinationIPs
  Device: SourceHostName
alertDetailsOverride:
  alertSeverityColumnName: 
  alertDescriptionFormat: |
    Device {{SourceHostName}} communicated with multiple possibly malicious destinations.  The destination IPs were:

    {{DestinationIPs}}

    The associated with Awake model(s) were:

    {{Models}}    
  alertDisplayNameFormat: Awake Security - Model Matches With Multiple Destinations On Device {{SourceHostName}}
  alertTacticsColumnName: 
status: Available
relevantTechniques: []
entityMappings:
- fieldMappings:
  - columnName: SourceHostName
    identifier: HostName
  entityType: Host
- fieldMappings:
  - columnName: SourceIPs
    identifier: Address
  entityType: IP
queryFrequency: 1h

ARM