GitHub Activites from a New Country

Back


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	1.0.1
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 timestamp = TimeGenerated
| extend AccountName = tostring(split(Actor, "@")[0]), AccountUPNSuffix = tostring(split(Actor, "@")[1])

YAML

status: Available
queryFrequency: 1d
id: f041e01d-840d-43da-95c8-4188f6cef546
tactics:
- InitialAccess
entityMappings:
- fieldMappings:
  - columnName: Actor
    identifier: FullName
  - columnName: AccountName
    identifier: Name
  - columnName: AccountUPNSuffix
    identifier: UPNSuffix
  entityType: Account
requiredDataConnectors: []
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GitHub/Analytic Rules/(Preview) GitHub - Activities from Infrequent Country.yaml
version: 1.0.1
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 timestamp = TimeGenerated
  | extend AccountName = tostring(split(Actor, "@")[0]), AccountUPNSuffix = tostring(split(Actor, "@")[1])  
description: |
    'Detect activities from a location that was not recently or was never visited by the user or by any user in your organization.'
relevantTechniques:
- T1078
triggerThreshold: 0
queryPeriod: 7d
triggerOperator: gt
name: GitHub Activites from a New Country
severity: Medium
kind: Scheduled

ARM