PaloAlto - File type changed
Id | 9150ad68-51c8-11ec-bf63-0242ac130002 |
Rulename | PaloAlto - File type changed |
Description | Detects when file type changed. |
Severity | Medium |
Tactics | InitialAccess |
Techniques | T1190 T1133 |
Required data connectors | CefAma PaloAltoCDL PaloAltoCDLAma |
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/PaloAltoCDL/Analytic Rules/PaloAltoCDLFileTypeWasChanged.yaml |
Version | 1.0.2 |
Arm template | 9150ad68-51c8-11ec-bf63-0242ac130002.json |
PaloAltoCDLEvent
| where EventResourceId =~ 'THREAT'
| where EventResult =~ 'file'
| where FileType != OldFileType
| extend FileCustomEntity = SrcFileName, AccountCustomEntity = DstUsername
status: Available
queryFrequency: 1h
description: |
'Detects when file type changed.'
severity: Medium
version: 1.0.2
relevantTechniques:
- T1190
- T1133
name: PaloAlto - File type changed
triggerThreshold: 0
kind: Scheduled
query: |
PaloAltoCDLEvent
| where EventResourceId =~ 'THREAT'
| where EventResult =~ 'file'
| where FileType != OldFileType
| extend FileCustomEntity = SrcFileName, AccountCustomEntity = DstUsername
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/PaloAltoCDL/Analytic Rules/PaloAltoCDLFileTypeWasChanged.yaml
requiredDataConnectors:
- connectorId: PaloAltoCDL
dataTypes:
- PaloAltoCDLEvent
- connectorId: PaloAltoCDLAma
dataTypes:
- PaloAltoCDLEvent
- connectorId: CefAma
dataTypes:
- CommonSecurityLog
tactics:
- InitialAccess
id: 9150ad68-51c8-11ec-bf63-0242ac130002
queryPeriod: 1h
entityMappings:
- fieldMappings:
- columnName: AccountCustomEntity
identifier: Name
entityType: Account
- fieldMappings:
- columnName: FileCustomEntity
identifier: Name
entityType: File
{
"$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/9150ad68-51c8-11ec-bf63-0242ac130002')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/9150ad68-51c8-11ec-bf63-0242ac130002')]",
"properties": {
"alertRuleTemplateName": "9150ad68-51c8-11ec-bf63-0242ac130002",
"customDetails": null,
"description": "'Detects when file type changed.'\n",
"displayName": "PaloAlto - File type changed",
"enabled": true,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "AccountCustomEntity",
"identifier": "Name"
}
]
},
{
"entityType": "File",
"fieldMappings": [
{
"columnName": "FileCustomEntity",
"identifier": "Name"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/PaloAltoCDL/Analytic Rules/PaloAltoCDLFileTypeWasChanged.yaml",
"query": "PaloAltoCDLEvent\n| where EventResourceId =~ 'THREAT'\n| where EventResult =~ 'file'\n| where FileType != OldFileType\n| extend FileCustomEntity = SrcFileName, AccountCustomEntity = DstUsername\n",
"queryFrequency": "PT1H",
"queryPeriod": "PT1H",
"severity": "Medium",
"status": "Available",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"InitialAccess"
],
"techniques": [
"T1133",
"T1190"
],
"templateVersion": "1.0.2",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}