Microsoft Sentinel Analytic Rules
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Cisco SE High Events Last Hour

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Id4683ebce-07ad-4089-89e3-39d8fe83c011
RulenameCisco SE High Events Last Hour
DescriptionFind events from Cisco Secure Endpoint that are of High severity in the last hour.
SeverityHigh
TacticsExecution
InitialAccess
TechniquesT1204.002
T1190
Required data connectorsCiscoSecureEndpoint
KindScheduled
Query frequency1h
Query period1h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cisco Secure Endpoint/Analytic Rules/CiscoEndpointHighAlert.yaml
Version1.0.1
Arm template4683ebce-07ad-4089-89e3-39d8fe83c011.json
Deploy To Azure
let endtime = 1h;
CiscoSecureEndpoint_CL
| where TimeGenerated >= ago(endtime)
| where severity_s == "High"
| project NetworkAddresses = parse_json(computer_network_addresses_s), computer_hostname_s, date_t, event_type_s, computer_links_trajectory_s
| summarize CountInLastHour = count() by computer_hostname_s, date_t, event_type_s, tostring(NetworkAddresses.ip), computer_links_trajectory_s
status: Available
triggerOperator: gt
triggerThreshold: 0
name: Cisco SE High Events Last Hour
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cisco Secure Endpoint/Analytic Rules/CiscoEndpointHighAlert.yaml
queryPeriod: 1h
severity: High
kind: Scheduled
entityMappings:
- entityType: IP
  fieldMappings:
  - columnName: NetworkAddresses_ip
    identifier: Address
- entityType: Host
  fieldMappings:
  - columnName: computer_hostname_s
    identifier: HostName
- entityType: URL
  fieldMappings:
  - columnName: computer_links_trajectory_s
    identifier: Url
queryFrequency: 1h
relevantTechniques:
- T1204.002
- T1190
requiredDataConnectors:
- dataTypes:
  - CiscoSecureEndpoint_CL
  connectorId: CiscoSecureEndpoint
description: |
    'Find events from Cisco Secure Endpoint that are of High severity in the last hour.'
tactics:
- Execution
- InitialAccess
query: |
  let endtime = 1h;
  CiscoSecureEndpoint_CL
  | where TimeGenerated >= ago(endtime)
  | where severity_s == "High"
  | project NetworkAddresses = parse_json(computer_network_addresses_s), computer_hostname_s, date_t, event_type_s, computer_links_trajectory_s
  | summarize CountInLastHour = count() by computer_hostname_s, date_t, event_type_s, tostring(NetworkAddresses.ip), computer_links_trajectory_s  
id: 4683ebce-07ad-4089-89e3-39d8fe83c011
version: 1.0.1
{
  "$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/4683ebce-07ad-4089-89e3-39d8fe83c011')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/4683ebce-07ad-4089-89e3-39d8fe83c011')]",
      "properties": {
        "alertRuleTemplateName": "4683ebce-07ad-4089-89e3-39d8fe83c011",
        "customDetails": null,
        "description": "'Find events from Cisco Secure Endpoint that are of High severity in the last hour.'\n",
        "displayName": "Cisco SE High Events Last Hour",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "NetworkAddresses_ip",
                "identifier": "Address"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "computer_hostname_s",
                "identifier": "HostName"
              }
            ]
          },
          {
            "entityType": "URL",
            "fieldMappings": [
              {
                "columnName": "computer_links_trajectory_s",
                "identifier": "Url"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cisco Secure Endpoint/Analytic Rules/CiscoEndpointHighAlert.yaml",
        "query": "let endtime = 1h;\nCiscoSecureEndpoint_CL\n| where TimeGenerated >= ago(endtime)\n| where severity_s == \"High\"\n| project NetworkAddresses = parse_json(computer_network_addresses_s), computer_hostname_s, date_t, event_type_s, computer_links_trajectory_s\n| summarize CountInLastHour = count() by computer_hostname_s, date_t, event_type_s, tostring(NetworkAddresses.ip), computer_links_trajectory_s\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "High",
        "status": "Available",
        "subTechniques": [
          "T1204.002"
        ],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Execution",
          "InitialAccess"
        ],
        "techniques": [
          "T1190",
          "T1204"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}