Detection rules › Kusto

Jira - New site admin user

Status
available
Severity
high
Time window
1h
Source
github.com/Azure/Azure-Sentinel

'Detects new site admin user.'

MITRE ATT&CK coverage

TacticTechniques
PersistenceT1078 Valid Accounts
Privilege EscalationT1078 Valid Accounts

Rule body kusto

id: b894593a-2b4c-4573-bc47-78715224a6f5
name: Jira - New site admin user
description: |
  'Detects new site admin user.'
severity: High
status: Available
requiredDataConnectors:
  - connectorId: JiraAuditAPI
    dataTypes:
      - JiraAudit
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
  - Persistence
  - PrivilegeEscalation
relevantTechniques:
  - T1078
query: |
  JiraAudit
  | where EventMessage =~ 'User added to group'
  | where ObjectItemName =~ 'site-admins'
  | extend user = todynamic(AssociatedItems)[0]['name']
  | extend AccountCustomEntity = user
entityMappings:
  - entityType: Account
    fieldMappings:
      - identifier: Name
        columnName: AccountCustomEntity
version: 1.0.1
kind: Scheduled

Stages and Predicates

Stage 1: source

JiraAudit

Stage 2: where

| where EventMessage =~ 'User added to group'

Stage 3: where

| where ObjectItemName =~ 'site-admins'

Stage 4: extend

| extend user = todynamic(AssociatedItems)[0]['name']

Stage 5: extend

| extend AccountCustomEntity = user

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
EventMessageeq
  • User added to group
ObjectItemNameeq
  • site-admins

Output fields

Fields the rule emits when it matches. Chronicle authors list these in the outcome block; they appear on the detection and $risk_score drives alerting. Sentinel / Defender XDR rules build them up through project / summarize / extend stages. Sentinel maps these into alert fields via entityMappings and customDetails; Defender XDR custom detections surface them as alert fields directly.

FieldSource
userextend
AccountCustomEntityextend