Detection rules › Kusto

Awake Security - High Severity Matches By Device

Status
available
Severity
medium
Time window
1h
Group by
SourceHostName
Source
github.com/Azure/Azure-Sentinel

This query searches for devices with high severity event(s).

Rule body

id: d5e012c2-29ba-4a02-a813-37b928aafe2d
name: Awake Security - High Severity Matches By Device
description: This query searches for devices with high severity event(s).
severity: Medium
status: Available
requiredDataConnectors:
  - connectorId: CefAma
    dataTypes:
      - CommonSecurityLog
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics: []
relevantTechniques: []
query: |
  CommonSecurityLog
  | where DeviceVendor == "Arista Networks" and DeviceProduct == "Awake Security" and toint(LogSeverity) > 6
  | 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(todecimal  (LogSeverity)) by SourceHostName
eventGroupingSettings:
  aggregationKind: AlertPerResult
alertDetailsOverride:
  alertDisplayNameFormat: Awake Security - High Severity Matches On Device {{SourceHostName}}
  alertDescriptionFormat: |
    Device {{SourceHostName}} matched the following high-severity Awake model(s):

    {{Models}}

    The destination IPs associated with these matches were:

    {{DestinationIPs}}
  alertTacticsColumnName: null
  alertSeverityColumnName: MaxSeverity
customDetails:
  Matched_Models: Models
  Matches_ASP_URLs: ASPMatchURLs
  Device: SourceHostName
  Matches_Count: ModelMatchCount
  Matches_Max_Severity: MaxSeverity
  Matches_Dest_IPs: DestinationIPs
entityMappings:
  - entityType: Host
    fieldMappings:
      - identifier: HostName
        columnName: SourceHostName
  - entityType: IP
    fieldMappings:
      - identifier: Address
        columnName: SourceIPs
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    enabled: true
    reopenClosedIncident: true
    lookbackDuration: 3d
    matchingMethod: Selected
    groupByEntities:
      - Host
    groupByAlertDetails: []
    groupByCustomDetails:
      - Device
version: 1.0.2
kind: Scheduled

Stages and Predicates

Stage 1: source

CommonSecurityLog

Stage 2: where

| where DeviceVendor == "Arista Networks" and DeviceProduct == "Awake Security" and toint(LogSeverity) > 6

Stage 3: summarize

| 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(todecimal  (LogSeverity)) by SourceHostName

Indicators

These rows show field, operator, and value matches.

Output fields

These fields are emitted when the rule matches.

FieldSource
ASPMatchURLssummarize
DestinationIPssummarize
EndTimesummarize
MaxSeveritysummarize
ModelMatchCountsummarize
Modelssummarize
SourceHostNamesummarize
SourceIPssummarize
StartTimesummarize