GitHub Signin Burst from Multiple Locations

let locationThreshold = 1;
let aadFunc = (tableName:string){
table(tableName)
| where AppDisplayName =~ "GitHub.com"
| where ResultType == 0
| summarize CountOfLocations = dcount(Location), Locations = make_set(Location,100), BurstStartTime = min(TimeGenerated), BurstEndTime = max(TimeGenerated) by UserPrincipalName, Type
| where CountOfLocations > locationThreshold
| extend timestamp = BurstStartTime
};
let aadSignin = aadFunc("SigninLogs");
let aadNonInt = aadFunc("AADNonInteractiveUserSignInLogs");
union isfuzzy=true aadSignin, aadNonInt
| extend Name = tostring(split(UserPrincipalName,'@',0)[0]), UPNSuffix = tostring(split(UserPrincipalName,'@',1)[0])

queryFrequency: 1h
relevantTechniques:
- T1110
name: GitHub Signin Burst from Multiple Locations
queryPeriod: 1h
kind: Scheduled
query: |
  let locationThreshold = 1;
  let aadFunc = (tableName:string){
  table(tableName)
  | where AppDisplayName =~ "GitHub.com"
  | where ResultType == 0
  | summarize CountOfLocations = dcount(Location), Locations = make_set(Location,100), BurstStartTime = min(TimeGenerated), BurstEndTime = max(TimeGenerated) by UserPrincipalName, Type
  | where CountOfLocations > locationThreshold
  | extend timestamp = BurstStartTime
  };
  let aadSignin = aadFunc("SigninLogs");
  let aadNonInt = aadFunc("AADNonInteractiveUserSignInLogs");
  union isfuzzy=true aadSignin, aadNonInt
  | extend Name = tostring(split(UserPrincipalName,'@',0)[0]), UPNSuffix = tostring(split(UserPrincipalName,'@',1)[0])  
triggerOperator: gt
status: Available
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/Sign-in Burst from Multiple Locations.yaml
triggerThreshold: 0
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: UserPrincipalName
  - identifier: Name
    columnName: Name
  - identifier: UPNSuffix
    columnName: UPNSuffix
  entityType: Account
tactics:
- CredentialAccess
id: d3980830-dd9d-40a5-911f-76b44dfdce16
severity: Medium
requiredDataConnectors:
- dataTypes:
  - SigninLogs
  connectorId: AzureActiveDirectory
- dataTypes:
  - AADNonInteractiveUserSignInLogs
  connectorId: AzureActiveDirectory
version: 1.0.3
description: |
  'This detection triggers when there is a Signin burst from multiple locations in GitHub (Entra ID SSO).
   This detection is based on configurable threshold which can be prone to false positives. To view the anomaly based equivalent of thie detection, please see here https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft%20Entra%20ID/Analytic%20Rules/AnomalousUserAppSigninLocationIncrease-detection.yaml. '  

{
  "$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/d3980830-dd9d-40a5-911f-76b44dfdce16')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/d3980830-dd9d-40a5-911f-76b44dfdce16')]",
      "properties": {
        "alertRuleTemplateName": "d3980830-dd9d-40a5-911f-76b44dfdce16",
        "customDetails": null,
        "description": "'This detection triggers when there is a Signin burst from multiple locations in GitHub (Entra ID SSO).\n This detection is based on configurable threshold which can be prone to false positives. To view the anomaly based equivalent of thie detection, please see here https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft%20Entra%20ID/Analytic%20Rules/AnomalousUserAppSigninLocationIncrease-detection.yaml. '\n",
        "displayName": "GitHub Signin Burst from Multiple Locations",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "UserPrincipalName",
                "identifier": "FullName"
              },
              {
                "columnName": "Name",
                "identifier": "Name"
              },
              {
                "columnName": "UPNSuffix",
                "identifier": "UPNSuffix"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/Sign-in Burst from Multiple Locations.yaml",
        "query": "let locationThreshold = 1;\nlet aadFunc = (tableName:string){\ntable(tableName)\n| where AppDisplayName =~ \"GitHub.com\"\n| where ResultType == 0\n| summarize CountOfLocations = dcount(Location), Locations = make_set(Location,100), BurstStartTime = min(TimeGenerated), BurstEndTime = max(TimeGenerated) by UserPrincipalName, Type\n| where CountOfLocations > locationThreshold\n| extend timestamp = BurstStartTime\n};\nlet aadSignin = aadFunc(\"SigninLogs\");\nlet aadNonInt = aadFunc(\"AADNonInteractiveUserSignInLogs\");\nunion isfuzzy=true aadSignin, aadNonInt\n| extend Name = tostring(split(UserPrincipalName,'@',0)[0]), UPNSuffix = tostring(split(UserPrincipalName,'@',1)[0])\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CredentialAccess"
        ],
        "techniques": [
          "T1110"
        ],
        "templateVersion": "1.0.3",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}