Alsid Password Spraying

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Id	9e20eb4e-cc0d-4349-a99d-cad756859dfb
Rulename	Alsid Password Spraying
Description	Searches for Password spraying attacks
Severity	High
Tactics	CredentialAccess
Techniques	T1110.003
Required data connectors	AlsidForAD
Kind	Scheduled
Query frequency	2h
Query period	2h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Alsid For AD/Analytic Rules/PasswordSpraying.yaml
Version	1.0.1
Arm template	9e20eb4e-cc0d-4349-a99d-cad756859dfb.json

KQL

afad_parser
| where MessageType == 2 and Codename == "Password Spraying"
| extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))

YAML

relevantTechniques:
- T1110.003
entityMappings:
- fieldMappings:
  - columnName: HostName
    identifier: HostName
  - columnName: DnsDomain
    identifier: DnsDomain
  entityType: Host
triggerThreshold: 0
description: |
    'Searches for Password spraying attacks'
requiredDataConnectors:
- connectorId: AlsidForAD
  dataTypes:
  - AlsidForADLog_CL
triggerOperator: gt
version: 1.0.1
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Alsid For AD/Analytic Rules/PasswordSpraying.yaml
id: 9e20eb4e-cc0d-4349-a99d-cad756859dfb
queryFrequency: 2h
query: |
  afad_parser
  | where MessageType == 2 and Codename == "Password Spraying"
  | extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))  
severity: High
status: Available
queryPeriod: 2h
name: Alsid Password Spraying
tactics:
- CredentialAccess
kind: Scheduled

ARM