TrendMicroCAS
| where EventType has_all ('virtual', 'analyzer')
| where isnotempty(VirusName)
| summarize count() by DstUserName, VirusName, bin(TimeGenerated, 15m)
| where count_ >= 2
| extend AccountCustomEntity = DstUserName, MalwareCustomEntity = VirusName
status: Available
queryFrequency: 1h
description: |
'Detects when same malware was detected for multiple user account.'
severity: High
version: 1.0.1
relevantTechniques:
- T1566
name: Trend Micro CAS - Multiple infected users
triggerThreshold: 0
kind: Scheduled
query: |
TrendMicroCAS
| where EventType has_all ('virtual', 'analyzer')
| where isnotempty(VirusName)
| summarize count() by DstUserName, VirusName, bin(TimeGenerated, 15m)
| where count_ >= 2
| extend AccountCustomEntity = DstUserName, MalwareCustomEntity = VirusName
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Trend Micro Cloud App Security/Analytic Rules/TrendMicroCASVAOutbreak.yaml
requiredDataConnectors:
- connectorId: TrendMicroCAS
dataTypes:
- TrendMicroCAS
tactics:
- InitialAccess
id: 65c2a6fe-ff7b-46b0-9278-61265f77f3bc
queryPeriod: 1h
entityMappings:
- fieldMappings:
- columnName: AccountCustomEntity
identifier: Name
entityType: Account
- fieldMappings:
- columnName: MalwareCustomEntity
identifier: Name
entityType: Malware
{
"$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/65c2a6fe-ff7b-46b0-9278-61265f77f3bc')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/65c2a6fe-ff7b-46b0-9278-61265f77f3bc')]",
"properties": {
"alertRuleTemplateName": "65c2a6fe-ff7b-46b0-9278-61265f77f3bc",
"customDetails": null,
"description": "'Detects when same malware was detected for multiple user account.'\n",
"displayName": "Trend Micro CAS - Multiple infected users",
"enabled": true,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "AccountCustomEntity",
"identifier": "Name"
}
]
},
{
"entityType": "Malware",
"fieldMappings": [
{
"columnName": "MalwareCustomEntity",
"identifier": "Name"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Trend Micro Cloud App Security/Analytic Rules/TrendMicroCASVAOutbreak.yaml",
"query": "TrendMicroCAS\n| where EventType has_all ('virtual', 'analyzer')\n| where isnotempty(VirusName)\n| summarize count() by DstUserName, VirusName, bin(TimeGenerated, 15m)\n| where count_ >= 2\n| extend AccountCustomEntity = DstUserName, MalwareCustomEntity = VirusName\n",
"queryFrequency": "PT1H",
"queryPeriod": "PT1H",
"severity": "High",
"status": "Available",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"InitialAccess"
],
"techniques": [
"T1566"
],
"templateVersion": "1.0.1",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}