Analytic rule catalog
VMware ESXi - SSH Enable on ESXi Host
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| Id | 4f5b5d79-ff4e-4edd-ae3e-9e1187f0b924 |
| Rulename | VMware ESXi - SSH Enable on ESXi Host |
| Description | Detects when vim-cmd is used to enable SSH on an ESXi host |
| Severity | High |
| Tactics | LateralMovement |
| Techniques | T1021 |
| 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/ESXiSSHEnableOnHost.yaml |
| Version | 1.0.0 |
| Arm template | 4f5b5d79-ff4e-4edd-ae3e-9e1187f0b924.json |
VMwareESXi
| where SyslogMessage has_all ("vim-cmd","hostsvc/enable_ssh")
| extend SrcUsername = extract(@'\[info\]\s+\[(.*?)\]', 1, SyslogMessage)
| extend DstHostname = extract(@'\[\d+\]\s+\[(.*?)\s+on', 1, SyslogMessage)
severity: High
relevantTechniques:
- T1021
version: 1.0.0
triggerThreshold: 0
tactics:
- LateralMovement
query: |
VMwareESXi
| where SyslogMessage has_all ("vim-cmd","hostsvc/enable_ssh")
| extend SrcUsername = extract(@'\[info\]\s+\[(.*?)\]', 1, SyslogMessage)
| extend DstHostname = extract(@'\[\d+\]\s+\[(.*?)\s+on', 1, SyslogMessage)
name: VMware ESXi - SSH Enable on ESXi Host
kind: Scheduled
entityMappings:
- entityType: Host
fieldMappings:
- identifier: FullName
columnName: DstHostname
- entityType: Account
fieldMappings:
- identifier: Name
columnName: SrcUsername
triggerOperator: gt
requiredDataConnectors:
- datatypes:
- Syslog
connectorId: SyslogAma
queryFrequency: 10m
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic%20Rules/ESXiSSHEnableOnHost.yaml
status: Available
queryPeriod: 10m
id: 4f5b5d79-ff4e-4edd-ae3e-9e1187f0b924
description: |
'Detects when vim-cmd is used to enable SSH on an ESXi host'
{
"$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/4f5b5d79-ff4e-4edd-ae3e-9e1187f0b924')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/4f5b5d79-ff4e-4edd-ae3e-9e1187f0b924')]",
"properties": {
"alertRuleTemplateName": "4f5b5d79-ff4e-4edd-ae3e-9e1187f0b924",
"customDetails": null,
"description": "'Detects when vim-cmd is used to enable SSH on an ESXi host'\n",
"displayName": "VMware ESXi - SSH Enable on ESXi Host",
"enabled": true,
"entityMappings": [
{
"entityType": "Host",
"fieldMappings": [
{
"columnName": "DstHostname",
"identifier": "FullName"
}
]
},
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "SrcUsername",
"identifier": "Name"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic%20Rules/ESXiSSHEnableOnHost.yaml",
"query": "VMwareESXi\n| where SyslogMessage has_all (\"vim-cmd\",\"hostsvc/enable_ssh\")\n| extend SrcUsername = extract(@'\\[info\\]\\s+\\[(.*?)\\]', 1, SyslogMessage)\n| extend DstHostname = extract(@'\\[\\d+\\]\\s+\\[(.*?)\\s+on', 1, SyslogMessage)\n",
"queryFrequency": "PT10M",
"queryPeriod": "PT10M",
"severity": "High",
"status": "Available",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"LateralMovement"
],
"techniques": [
"T1021"
],
"templateVersion": "1.0.0",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}