CiscoSecureEndpoint
| where EventMessage has 'Suspected ransomware'
| extend HostCustomEntity = DstHostname, MalwareCustomEntity = ThreatName
severity: High
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cisco Secure Endpoint/Analytic Rules/CiscoSERansomwareActivityOnHost copy.yaml
description: |
'This rule is triggered when possible ransomware activity is detected on host.'
triggerOperator: gt
queryPeriod: 15m
requiredDataConnectors:
- dataTypes:
- CiscoSecureEndpoint
connectorId: CiscoSecureEndpoint
queryFrequency: 15m
triggerThreshold: 0
tactics:
- Impact
query: |
CiscoSecureEndpoint
| where EventMessage has 'Suspected ransomware'
| extend HostCustomEntity = DstHostname, MalwareCustomEntity = ThreatName
status: Available
kind: Scheduled
relevantTechniques:
- T1486
version: 1.0.0
id: c9629114-0f49-4b50-9f1b-345287b2eebf
entityMappings:
- fieldMappings:
- columnName: HostCustomEntity
identifier: HostName
entityType: Host
- fieldMappings:
- columnName: MalwareCustomEntity
identifier: Name
entityType: Malware
name: Cisco SE - Ransomware Activity
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/c9629114-0f49-4b50-9f1b-345287b2eebf')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/c9629114-0f49-4b50-9f1b-345287b2eebf')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01-preview",
"properties": {
"displayName": "Cisco SE - Ransomware Activity",
"description": "'This rule is triggered when possible ransomware activity is detected on host.'\n",
"severity": "High",
"enabled": true,
"query": "CiscoSecureEndpoint\n| where EventMessage has 'Suspected ransomware'\n| extend HostCustomEntity = DstHostname, MalwareCustomEntity = ThreatName\n",
"queryFrequency": "PT15M",
"queryPeriod": "PT15M",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Impact"
],
"techniques": [
"T1486"
],
"alertRuleTemplateName": "c9629114-0f49-4b50-9f1b-345287b2eebf",
"customDetails": null,
"entityMappings": [
{
"entityType": "Host",
"fieldMappings": [
{
"columnName": "HostCustomEntity",
"identifier": "HostName"
}
]
},
{
"entityType": "Malware",
"fieldMappings": [
{
"columnName": "MalwareCustomEntity",
"identifier": "Name"
}
]
}
],
"status": "Available",
"templateVersion": "1.0.0",
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cisco Secure Endpoint/Analytic Rules/CiscoSERansomwareActivityOnHost copy.yaml"
}
}
]
}