Analytic rule catalog
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%20Rules/ESXiRootPasswordChange.yaml |
| Version | 1.0.0 |
| Arm template | 17b0ea43-5aeb-4dc4-ac3a-be84acb8d5b7.json |
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)
entityMappings:
- entityType: IP
fieldMappings:
- columnName: SrcIpAddr
identifier: Address
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)
id: 17b0ea43-5aeb-4dc4-ac3a-be84acb8d5b7
queryFrequency: 10m
status: Available
version: 1.0.0
severity: High
relevantTechniques:
- T1078
- T1098
- T1556
name: VMware ESXi - Root password changed
kind: Scheduled
tactics:
- InitialAccess
- Persistence
- DefenseEvasion
requiredDataConnectors:
- datatypes:
- Syslog
connectorId: SyslogAma
description: |
'Detects when root user password is changed.'
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic%20Rules/ESXiRootPasswordChange.yaml
triggerOperator: gt
triggerThreshold: 0
queryPeriod: 10m
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"apiVersion": "2024-01-01-preview",
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/17b0ea43-5aeb-4dc4-ac3a-be84acb8d5b7')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/17b0ea43-5aeb-4dc4-ac3a-be84acb8d5b7')]",
"properties": {
"alertRuleTemplateName": "17b0ea43-5aeb-4dc4-ac3a-be84acb8d5b7",
"customDetails": null,
"description": "'Detects when root user password is changed.'\n",
"displayName": "VMware ESXi - Root password changed",
"enabled": true,
"entityMappings": [
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "SrcIpAddr",
"identifier": "Address"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic%20Rules/ESXiRootPasswordChange.yaml",
"query": "VMwareESXi\n| where SyslogMessage has_any (\"password changed for root\",\"Password was changed for account root\")\n| extend SrcIpAddr = extract(@'root@(\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3})', 1, SyslogMessage)\n",
"queryFrequency": "PT10M",
"queryPeriod": "PT10M",
"severity": "High",
"status": "Available",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"DefenseEvasion",
"InitialAccess",
"Persistence"
],
"techniques": [
"T1078",
"T1098",
"T1556"
],
"templateVersion": "1.0.0",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}