VMware ESXi - Multiple VMs stopped
Id | 5fe1af14-cd40-48ff-b581-3a12a1f90785 |
Rulename | VMware ESXi - Multiple VMs stopped |
Description | Detects when multiple VMs ware stopped by user. |
Severity | Medium |
Tactics | Impact |
Techniques | T1529 |
Required data connectors | SyslogAma VMwareESXi |
Kind | Scheduled |
Query frequency | 1h |
Query period | 1h |
Trigger threshold | 0 |
Trigger operator | gt |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic Rules/ESXiMultipleVMStopped.yaml |
Version | 1.0.2 |
Arm template | 5fe1af14-cd40-48ff-b581-3a12a1f90785.json |
let threshold = 5;
VMwareESXi
| where SyslogMessage has ('VmPoweredOffEvent')
| extend SrcUsername = extract(@'\[info\]\s+\[(.*?)\]', 1, SyslogMessage)
| extend DstHostname = extract(@'\[\d+\]\s+\[(.*?)\s+on', 1, SyslogMessage)
| summarize st_vm = make_set(DstHostname,200) by SrcUsername, bin(TimeGenerated, 5m)
| where array_length(st_vm) > threshold
| extend hostname = iff(array_length(st_vm) > 0, st_vm[0], "")
| extend NTDomain = tostring(split(hostname, '\\', 0)[0]), Name = tostring(split(SrcUsername, '\\', 1)[0]), HostName = tostring(split(hostname, '.', 0)[0]), DnsDomain = tostring(split(SrcUsername, '\\', 1)[0])
queryPeriod: 1h
version: 1.0.2
tactics:
- Impact
queryFrequency: 1h
id: 5fe1af14-cd40-48ff-b581-3a12a1f90785
triggerOperator: gt
requiredDataConnectors:
- dataTypes:
- VMwareESXi
connectorId: VMwareESXi
- datatypes:
- Syslog
connectorId: SyslogAma
severity: Medium
entityMappings:
- entityType: Account
fieldMappings:
- columnName: Name
identifier: Name
- columnName: DnsDomain
identifier: DnsDomain
- entityType: Host
fieldMappings:
- columnName: HostName
identifier: HostName
- columnName: NTDomain
identifier: NTDomain
triggerThreshold: 0
relevantTechniques:
- T1529
query: |
let threshold = 5;
VMwareESXi
| where SyslogMessage has ('VmPoweredOffEvent')
| extend SrcUsername = extract(@'\[info\]\s+\[(.*?)\]', 1, SyslogMessage)
| extend DstHostname = extract(@'\[\d+\]\s+\[(.*?)\s+on', 1, SyslogMessage)
| summarize st_vm = make_set(DstHostname,200) by SrcUsername, bin(TimeGenerated, 5m)
| where array_length(st_vm) > threshold
| extend hostname = iff(array_length(st_vm) > 0, st_vm[0], "")
| extend NTDomain = tostring(split(hostname, '\\', 0)[0]), Name = tostring(split(SrcUsername, '\\', 1)[0]), HostName = tostring(split(hostname, '.', 0)[0]), DnsDomain = tostring(split(SrcUsername, '\\', 1)[0])
kind: Scheduled
name: VMware ESXi - Multiple VMs stopped
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic Rules/ESXiMultipleVMStopped.yaml
description: |
'Detects when multiple VMs ware stopped by user.'
status: Available
{
"$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/5fe1af14-cd40-48ff-b581-3a12a1f90785')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/5fe1af14-cd40-48ff-b581-3a12a1f90785')]",
"properties": {
"alertRuleTemplateName": "5fe1af14-cd40-48ff-b581-3a12a1f90785",
"customDetails": null,
"description": "'Detects when multiple VMs ware stopped by user.'\n",
"displayName": "VMware ESXi - Multiple VMs stopped",
"enabled": true,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "Name",
"identifier": "Name"
},
{
"columnName": "DnsDomain",
"identifier": "DnsDomain"
}
]
},
{
"entityType": "Host",
"fieldMappings": [
{
"columnName": "HostName",
"identifier": "HostName"
},
{
"columnName": "NTDomain",
"identifier": "NTDomain"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic Rules/ESXiMultipleVMStopped.yaml",
"query": "let threshold = 5;\nVMwareESXi\n| where SyslogMessage has ('VmPoweredOffEvent')\n| extend SrcUsername = extract(@'\\[info\\]\\s+\\[(.*?)\\]', 1, SyslogMessage)\n| extend DstHostname = extract(@'\\[\\d+\\]\\s+\\[(.*?)\\s+on', 1, SyslogMessage)\n| summarize st_vm = make_set(DstHostname,200) by SrcUsername, bin(TimeGenerated, 5m)\n| where array_length(st_vm) > threshold\n| extend hostname = iff(array_length(st_vm) > 0, st_vm[0], \"\")\n| extend NTDomain = tostring(split(hostname, '\\\\', 0)[0]), Name = tostring(split(SrcUsername, '\\\\', 1)[0]), HostName = tostring(split(hostname, '.', 0)[0]), DnsDomain = tostring(split(SrcUsername, '\\\\', 1)[0])\n",
"queryFrequency": "PT1H",
"queryPeriod": "PT1H",
"severity": "Medium",
"status": "Available",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Impact"
],
"techniques": [
"T1529"
],
"templateVersion": "1.0.2",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}