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

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

ARM