Ping Federate - Unexpected country for user

Status: available
Severity: medium
Time window: 1d
Source: github.com/Azure/Azure-Sentinel

'Detects requests from different countries for user in shotr term.'

MITRE ATT&CK coverage

Tactic	Techniques
Initial Access	`T1078` Valid Accounts

Rule body

id: 64e65105-c4fc-4c28-a4e9-bb1a3ce7652d
name: Ping Federate - Unexpected country for user
description: |
  'Detects requests from different countries for user in shotr term.'
severity: Medium
status: Available
requiredDataConnectors:
  - connectorId: CefAma
    dataTypes:
      - CommonSecurityLog
queryFrequency: 1h
queryPeriod: 1d
triggerOperator: gt
triggerThreshold: 0
tactics:
  - InitialAccess
relevantTechniques:
  - T1078
query: |
  let known_countries = 
  PingFederateEvent
  | where TimeGenerated between (ago(1d) .. (1h))
  | where isnotempty(DstGeoCountry)
  | summarize makeset(DstGeoCountry);
  PingFederateEvent
  | where isnotempty(DstGeoCountry)
  | where DstGeoCountry !in (known_countries)
  | extend AccountCustomEntity = DstUserName
  | extend IpCustomEntity = SrcIpAddr
entityMappings:
  - entityType: Account
    fieldMappings:
      - identifier: Name
        columnName: AccountCustomEntity
  - entityType: IP
    fieldMappings:
      - identifier: Address
        columnName: IpCustomEntity
version: 1.0.3
kind: Scheduled

Stages and Predicates

Let binding: `known_countries` used in Stage 3

let known_countries = PingFederateEvent
| where TimeGenerated between (ago(1d) .. (1h))
| where isnotempty(DstGeoCountry)
| summarize makeset(DstGeoCountry);

Stage 1: `source`

PingFederateEvent

Stage 2: `where`

| where isnotempty(DstGeoCountry)

Stage 3: `where`

| where DstGeoCountry !in (known_countries)

Stage 4: `extend`

| extend AccountCustomEntity = DstUserName

Stage 5: `extend`

| extend IpCustomEntity = SrcIpAddr

Exclusions

The rule actively suppresses these predicates.

Field	Kind	Excluded values	Search
`DstGeoCountry`	eq	`known_countries`	`excludes:DstGeoCountry` `field:"DstGeoCountry" value:"known_countries"`

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`DstGeoCountry`	is_not_null	(no value, null check)	`field:"DstGeoCountry" kind:is_not_null`

Output fields

These fields are emitted when the rule matches.

Field	Source
`AccountCustomEntity`	`extend`
`IpCustomEntity`	`extend`

Ping Federate - Unexpected country for user

MITRE ATT&CK coverage

Rule body

Stages and Predicates

Let binding: known_countries used in Stage 3

Stage 1: source

Stage 2: where

Stage 3: where

Stage 4: extend

Stage 5: extend