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

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

ARM