Netskope - Impossible Travel Detection Two Countries in Less Than 1 Hour

let timeWindow = 1h;
NetskopeWebTransactions_CL
| where TimeGenerated > ago(1h)
| where isnotempty(CsUsername) and isnotempty(XCCountry)
| summarize 
    Countries = make_set(XCCountry),
    Locations = make_set(XCLocation),
    IPs = make_set(CIp),
    MinTime = min(TimeGenerated),
    MaxTime = max(TimeGenerated),
    EventCount = count()
    by CsUsername, bin(TimeGenerated, timeWindow)
| where array_length(Countries) > 1
| extend TimeDiffMinutes = datetime_diff('minute', MaxTime, MinTime)
| where TimeDiffMinutes < 60
| project 
    TimeGenerated,
    User = CsUsername,
    DistinctCountries = Countries,
    Locations,
    SourceIPs = IPs,
    TimeDifferenceMinutes = TimeDiffMinutes,
    EventCount,
    AlertDetails = strcat('User ', CsUsername, ' accessed from ', array_length(Countries), ' countries within ', TimeDiffMinutes, ' minutes')

requiredDataConnectors:
- dataTypes:
  - NetskopeWebTransactions_CL
  connectorId: NetskopeWebTxConnector
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/NetskopeWebTx/Analytic%20Rules/NetskopeWebtx_Rule5.yaml
version: 1.0.0
status: Available
queryFrequency: 1h
query: |
  let timeWindow = 1h;
  NetskopeWebTransactions_CL
  | where TimeGenerated > ago(1h)
  | where isnotempty(CsUsername) and isnotempty(XCCountry)
  | summarize 
      Countries = make_set(XCCountry),
      Locations = make_set(XCLocation),
      IPs = make_set(CIp),
      MinTime = min(TimeGenerated),
      MaxTime = max(TimeGenerated),
      EventCount = count()
      by CsUsername, bin(TimeGenerated, timeWindow)
  | where array_length(Countries) > 1
  | extend TimeDiffMinutes = datetime_diff('minute', MaxTime, MinTime)
  | where TimeDiffMinutes < 60
  | project 
      TimeGenerated,
      User = CsUsername,
      DistinctCountries = Countries,
      Locations,
      SourceIPs = IPs,
      TimeDifferenceMinutes = TimeDiffMinutes,
      EventCount,
      AlertDetails = strcat('User ', CsUsername, ' accessed from ', array_length(Countries), ' countries within ', TimeDiffMinutes, ' minutes')
tactics:
- InitialAccess
- CredentialAccess
relevantTechniques:
- T1078
id: d1b88716-3cd4-4585-a9a2-2dd2c9b04ecb
triggerThreshold: 0
triggerOperator: gt
name: Netskope - Impossible Travel Detection (Two Countries in Less Than 1 Hour)
queryPeriod: 2h
severity: High
entityMappings:
- fieldMappings:
  - columnName: User
    identifier: Name
  entityType: Account
kind: Scheduled
description: |
  Detects when a user accesses resources from two distinct countries within less than 1 hour, indicating potential credential compromise or VPN abuse.

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/d1b88716-3cd4-4585-a9a2-2dd2c9b04ecb')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/d1b88716-3cd4-4585-a9a2-2dd2c9b04ecb')]",
      "properties": {
        "alertRuleTemplateName": "d1b88716-3cd4-4585-a9a2-2dd2c9b04ecb",
        "customDetails": null,
        "description": "Detects when a user accesses resources from two distinct countries within less than 1 hour, indicating potential credential compromise or VPN abuse.\n",
        "displayName": "Netskope - Impossible Travel Detection (Two Countries in Less Than 1 Hour)",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "User",
                "identifier": "Name"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/NetskopeWebTx/Analytic%20Rules/NetskopeWebtx_Rule5.yaml",
        "query": "let timeWindow = 1h;\nNetskopeWebTransactions_CL\n| where TimeGenerated > ago(1h)\n| where isnotempty(CsUsername) and isnotempty(XCCountry)\n| summarize \n    Countries = make_set(XCCountry),\n    Locations = make_set(XCLocation),\n    IPs = make_set(CIp),\n    MinTime = min(TimeGenerated),\n    MaxTime = max(TimeGenerated),\n    EventCount = count()\n    by CsUsername, bin(TimeGenerated, timeWindow)\n| where array_length(Countries) > 1\n| extend TimeDiffMinutes = datetime_diff('minute', MaxTime, MinTime)\n| where TimeDiffMinutes < 60\n| project \n    TimeGenerated,\n    User = CsUsername,\n    DistinctCountries = Countries,\n    Locations,\n    SourceIPs = IPs,\n    TimeDifferenceMinutes = TimeDiffMinutes,\n    EventCount,\n    AlertDetails = strcat('User ', CsUsername, ' accessed from ', array_length(Countries), ' countries within ', TimeDiffMinutes, ' minutes')\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT2H",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CredentialAccess",
          "InitialAccess"
        ],
        "techniques": [
          "T1078"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}