Azure DevOps Audit Detection for known malicious tooling

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Id	bc71cf84-c02c-4c0a-a64c-306d84f9ff89
Rulename	Azure DevOps Audit Detection for known malicious tooling
Description	Azure DevOps has been targeted over the years with a handful of toolkits. This detection will look for some common signs known for a few of these tools.
Severity	High
Tactics	Collection
Techniques	T1119
Kind	Scheduled
Query frequency	1d
Query period	1d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/AzureDevOpsAuditing/Analytic Rules/ADOMaliciousToolingDetections1.yaml
Version	1.0.4
Arm template	bc71cf84-c02c-4c0a-a64c-306d84f9ff89.json

KQL

ADOAuditLogs
// Look for known bad user agents
| where UserAgent has_any ("ADOKit")
| extend timestamp = TimeGenerated
| extend AccountName = tostring(split(ActorUPN, "@")[0]), AccountUPNSuffix = tostring(split(ActorUPN, "@")[1])

YAML

OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/AzureDevOpsAuditing/Analytic Rules/ADOMaliciousToolingDetections1.yaml
queryPeriod: 1d
description: |
    'Azure DevOps has been targeted over the years with a handful of toolkits.  This detection will look for some common signs known for a few of these tools.'
triggerThreshold: 0
name: Azure DevOps Audit Detection for known malicious tooling
triggerOperator: gt
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: ActorUPN
  - identifier: Name
    columnName: AccountName
  - identifier: UPNSuffix
    columnName: AccountUPNSuffix
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: IpAddress
kind: Scheduled
requiredDataConnectors: []
queryFrequency: 1d
tactics:
- Collection
id: bc71cf84-c02c-4c0a-a64c-306d84f9ff89
status: Available
version: 1.0.4
query: |
  ADOAuditLogs
  // Look for known bad user agents
  | where UserAgent has_any ("ADOKit")
  | extend timestamp = TimeGenerated
  | extend AccountName = tostring(split(ActorUPN, "@")[0]), AccountUPNSuffix = tostring(split(ActorUPN, "@")[1])  
severity: High
relevantTechniques:
- T1119

ARM