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])

id: d3980830-dd9d-40a5-911f-76b44dfdce16
severity: Medium
queryPeriod: 1h
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft%20Entra%20ID/Analytic%20Rules/Sign-in%20Burst%20from%20Multiple%20Locations.yaml
kind: Scheduled
requiredDataConnectors:
- dataTypes:
  - SigninLogs
  connectorId: AzureActiveDirectory
- dataTypes:
  - AADNonInteractiveUserSignInLogs
  connectorId: AzureActiveDirectory
triggerThreshold: 0
status: Available
relevantTechniques:
- T1110
entityMappings:
- fieldMappings:
  - columnName: UserPrincipalName
    identifier: FullName
  - columnName: Name
    identifier: Name
  - columnName: UPNSuffix
    identifier: UPNSuffix
  entityType: Account
name: GitHub Signin Burst from Multiple Locations
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])
queryFrequency: 1h
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. '
tactics:
- CredentialAccess
triggerOperator: gt

{
  "$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%20Entra%20ID/Analytic%20Rules/Sign-in%20Burst%20from%20Multiple%20Locations.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"
    }
  ]
}