Ping Federate - Password reset request from unexpected source IP address

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Id	2d201d21-77b4-4d97-95f3-26b5c6bde09f
Rulename	Ping Federate - Password reset request from unexpected source IP address..
Description	Detects password reset requests from unexpected source IP address.
Severity	Medium
Tactics	InitialAccess
Techniques	T1078
Required data connectors	CefAma
Kind	Scheduled
Query frequency	1h
Query period	14d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/PingFederate/Analytic Rules/PingFederatePasswordRstReqUnexpectedSource.yaml
Version	1.0.3
Arm template	2d201d21-77b4-4d97-95f3-26b5c6bde09f.json

KQL

let known_src = 
PingFederateEvent
| where TimeGenerated between (ago(14d) .. (1d))
| where isnotempty(SrcIpAddr)
| summarize makeset(SrcIpAddr);
PingFederateEvent
| where EventType =~ 'PWD_RESET_REQUEST'
| where isnotempty(SrcIpAddr)
| where SrcIpAddr !in (known_src)
| extend AccountCustomEntity = DstUserName
| extend IpCustomEntity = SrcIpAddr

YAML

description: |
    'Detects password reset requests from unexpected source IP address.'
version: 1.0.3
triggerThreshold: 0
tactics:
- InitialAccess
queryPeriod: 14d
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/PingFederate/Analytic Rules/PingFederatePasswordRstReqUnexpectedSource.yaml
triggerOperator: gt
status: Available
id: 2d201d21-77b4-4d97-95f3-26b5c6bde09f
name: Ping Federate - Password reset request from unexpected source IP address..
queryFrequency: 1h
severity: Medium
kind: Scheduled
entityMappings:
- fieldMappings:
  - columnName: AccountCustomEntity
    identifier: Name
  entityType: Account
- fieldMappings:
  - columnName: IpCustomEntity
    identifier: Address
  entityType: IP
relevantTechniques:
- T1078
query: |
  let known_src = 
  PingFederateEvent
  | where TimeGenerated between (ago(14d) .. (1d))
  | where isnotempty(SrcIpAddr)
  | summarize makeset(SrcIpAddr);
  PingFederateEvent
  | where EventType =~ 'PWD_RESET_REQUEST'
  | where isnotempty(SrcIpAddr)
  | where SrcIpAddr !in (known_src)
  | extend AccountCustomEntity = DstUserName
  | extend IpCustomEntity = SrcIpAddr  
requiredDataConnectors:
- dataTypes:
  - CommonSecurityLog
  connectorId: CefAma

ARM