VMware ESXi - Root password changed

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Id	17b0ea43-5aeb-4dc4-ac3a-be84acb8d5b7
Rulename	VMware ESXi - Root password changed
Description	Detects when root user password is changed.
Severity	High
Tactics	InitialAccess Persistence DefenseEvasion
Techniques	T1078 T1098 T1556
Required data connectors	SyslogAma
Kind	Scheduled
Query frequency	10m
Query period	10m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic Rules/ESXiRootPasswordChange.yaml
Version	1.0.0
Arm template	17b0ea43-5aeb-4dc4-ac3a-be84acb8d5b7.json

KQL

VMwareESXi
| where SyslogMessage has_any ("password changed for root","Password was changed for account root")
| extend SrcIpAddr = extract(@'root@(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})', 1, SyslogMessage)

YAML

severity: High
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic Rules/ESXiRootPasswordChange.yaml
id: 17b0ea43-5aeb-4dc4-ac3a-be84acb8d5b7
entityMappings:
- fieldMappings:
  - identifier: Address
    columnName: SrcIpAddr
  entityType: IP
kind: Scheduled
status: Available
tactics:
- InitialAccess
- Persistence
- DefenseEvasion
queryFrequency: 10m
requiredDataConnectors:
- connectorId: SyslogAma
  datatypes:
  - Syslog
relevantTechniques:
- T1078
- T1098
- T1556
version: 1.0.0
description: |
    'Detects when root user password is changed.'
triggerThreshold: 0
query: |
  VMwareESXi
  | where SyslogMessage has_any ("password changed for root","Password was changed for account root")
  | extend SrcIpAddr = extract(@'root@(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})', 1, SyslogMessage)  
queryPeriod: 10m
name: VMware ESXi - Root password changed

ARM