VMware ESXi - Shared or stolen root account

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Id	9c496d6c-42a3-4896-9b6c-00254386928f
Rulename	VMware ESXi - Shared or stolen root account
Description	Detects when shared or stolen root account.
Severity	High
Tactics	InitialAccess PrivilegeEscalation
Techniques	T1078
Required data connectors	SyslogAma
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	1
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic Rules/ESXiSharedOrStolenRootAccount.yaml
Version	1.0.3
Arm template	9c496d6c-42a3-4896-9b6c-00254386928f.json

KQL

VMwareESXi
| where SyslogMessage has_all ('UserLoginSessionEvent', 'root', 'logged in')
| extend SrcIpAddr = extract(@'root@(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})', 1, SyslogMessage)
| summarize count() by SrcIpAddr, bin(TimeGenerated, 15m)
| where count_ > 1
| extend IPCustomEntity = SrcIpAddr

YAML

queryFrequency: 1h
tactics:
- InitialAccess
- PrivilegeEscalation
name: VMware ESXi - Shared or stolen root account
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic Rules/ESXiSharedOrStolenRootAccount.yaml
triggerThreshold: 1
description: |
    'Detects when shared or stolen root account.'
status: Available
kind: Scheduled
entityMappings:
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
id: 9c496d6c-42a3-4896-9b6c-00254386928f
queryPeriod: 1h
version: 1.0.3
severity: High
relevantTechniques:
- T1078
requiredDataConnectors:
- connectorId: SyslogAma
  datatypes:
  - Syslog
triggerOperator: gt
query: |
  VMwareESXi
  | where SyslogMessage has_all ('UserLoginSessionEvent', 'root', 'logged in')
  | extend SrcIpAddr = extract(@'root@(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})', 1, SyslogMessage)
  | summarize count() by SrcIpAddr, bin(TimeGenerated, 15m)
  | where count_ > 1
  | extend IPCustomEntity = SrcIpAddr

ARM