GitHub Signin Burst from Multiple Locations

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Id	d3980830-dd9d-40a5-911f-76b44dfdce16
Rulename	GitHub Signin Burst from Multiple Locations
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.
Severity	Medium
Tactics	CredentialAccess
Techniques	T1110
Required data connectors	AzureActiveDirectory
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/Sign-in Burst from Multiple Locations.yaml
Version	1.0.3
Arm template	d3980830-dd9d-40a5-911f-76b44dfdce16.json

KQL

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])

YAML

kind: Scheduled
tactics:
- CredentialAccess
status: Available
triggerOperator: gt
version: 1.0.3
name: GitHub Signin Burst from Multiple Locations
queryFrequency: 1h
id: d3980830-dd9d-40a5-911f-76b44dfdce16
requiredDataConnectors:
- connectorId: AzureActiveDirectory
  dataTypes:
  - SigninLogs
- connectorId: AzureActiveDirectory
  dataTypes:
  - AADNonInteractiveUserSignInLogs
relevantTechniques:
- T1110
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. '  
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
triggerThreshold: 0
queryPeriod: 1h
severity: Medium
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])

ARM