GitHub Activites from a New Country

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Id	f041e01d-840d-43da-95c8-4188f6cef546
Rulename	GitHub Activites from a New Country
Description	Detect activities from a location that was not recently or was never visited by the user or by any user in your organization.
Severity	Medium
Tactics	InitialAccess
Techniques	T1078
Kind	Scheduled
Query frequency	1d
Query period	7d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GitHub/Analytic Rules/(Preview) GitHub - Activities from Infrequent Country.yaml
Version	1.0.0
Arm template	f041e01d-840d-43da-95c8-4188f6cef546.json

KQL

let LearningPeriod = 7d;
let RunTime = 1h;
let StartTime = 1h;
let EndRunTime = StartTime - RunTime;
let EndLearningTime = StartTime + LearningPeriod;
let GitHubCountryCodeLogs = (GitHubAuditData
| where Country != "");
  GitHubCountryCodeLogs
| where TimeGenerated between (ago(EndLearningTime) .. ago(StartTime))
| summarize makeset(Country) by Actor
| join kind=innerunique (
  GitHubCountryCodeLogs
  | where TimeGenerated between (ago(StartTime) .. ago(EndRunTime))
  | distinct Country, Actor, TimeGenerated
) on Actor 
| where set_Country !contains Country
| extend AccountCustomEntity = Actor , timestamp = TimeGenerated

YAML

requiredDataConnectors: []
triggerOperator: gt
queryFrequency: 1d
name: GitHub Activites from a New Country
status: Available
queryPeriod: 7d
id: f041e01d-840d-43da-95c8-4188f6cef546
description: |
    'Detect activities from a location that was not recently or was never visited by the user or by any user in your organization.'
severity: Medium
query: |
  let LearningPeriod = 7d;
  let RunTime = 1h;
  let StartTime = 1h;
  let EndRunTime = StartTime - RunTime;
  let EndLearningTime = StartTime + LearningPeriod;
  let GitHubCountryCodeLogs = (GitHubAuditData
  | where Country != "");
    GitHubCountryCodeLogs
  | where TimeGenerated between (ago(EndLearningTime) .. ago(StartTime))
  | summarize makeset(Country) by Actor
  | join kind=innerunique (
    GitHubCountryCodeLogs
    | where TimeGenerated between (ago(StartTime) .. ago(EndRunTime))
    | distinct Country, Actor, TimeGenerated
  ) on Actor 
  | where set_Country !contains Country
  | extend AccountCustomEntity = Actor , timestamp = TimeGenerated  
version: 1.0.0
kind: Scheduled
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GitHub/Analytic Rules/(Preview) GitHub - Activities from Infrequent Country.yaml
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: AccountCustomEntity
relevantTechniques:
- T1078
tactics:
- InitialAccess
triggerThreshold: 0

ARM

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/f041e01d-840d-43da-95c8-4188f6cef546')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/f041e01d-840d-43da-95c8-4188f6cef546')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01-preview",
      "properties": {
        "displayName": "GitHub Activites from a New Country",
        "description": "'Detect activities from a location that was not recently or was never visited by the user or by any user in your organization.'\n",
        "severity": "Medium",
        "enabled": true,
        "query": "let LearningPeriod = 7d;\nlet RunTime = 1h;\nlet StartTime = 1h;\nlet EndRunTime = StartTime - RunTime;\nlet EndLearningTime = StartTime + LearningPeriod;\nlet GitHubCountryCodeLogs = (GitHubAuditData\n| where Country != \"\");\n  GitHubCountryCodeLogs\n| where TimeGenerated between (ago(EndLearningTime) .. ago(StartTime))\n| summarize makeset(Country) by Actor\n| join kind=innerunique (\n  GitHubCountryCodeLogs\n  | where TimeGenerated between (ago(StartTime) .. ago(EndRunTime))\n  | distinct Country, Actor, TimeGenerated\n) on Actor \n| where set_Country !contains Country\n| extend AccountCustomEntity = Actor , timestamp = TimeGenerated\n",
        "queryFrequency": "P1D",
        "queryPeriod": "P7D",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess"
        ],
        "techniques": [
          "T1078"
        ],
        "alertRuleTemplateName": "f041e01d-840d-43da-95c8-4188f6cef546",
        "customDetails": null,
        "entityMappings": [
          {
            "fieldMappings": [
              {
                "identifier": "FullName",
                "columnName": "AccountCustomEntity"
              }
            ],
            "entityType": "Account"
          }
        ],
        "templateVersion": "1.0.0",
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GitHub/Analytic Rules/(Preview) GitHub - Activities from Infrequent Country.yaml",
        "status": "Available"
      }
    }
  ]
}