VMware ESXi - Shared or stolen root account

Back


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

queryPeriod: 1h
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  
name: VMware ESXi - Shared or stolen root account
entityMappings:
- fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
  entityType: IP
queryFrequency: 1h
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic Rules/ESXiSharedOrStolenRootAccount.yaml
requiredDataConnectors:
- connectorId: SyslogAma
  datatypes:
  - Syslog
description: |
    'Detects when shared or stolen root account.'
kind: Scheduled
version: 1.0.3
status: Available
severity: High
relevantTechniques:
- T1078
triggerOperator: gt
triggerThreshold: 1
tactics:
- InitialAccess
- PrivilegeEscalation
id: 9c496d6c-42a3-4896-9b6c-00254386928f

ARM