Apache - Command in URI

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Id	54da6a42-3b00-11ec-8d3d-0242ac130003
Rulename	Apache - Command in URI
Description	Detects command in URI
Severity	High
Tactics	InitialAccess
Techniques	T1190 T1133
Required data connectors	ApacheHTTPServer
Kind	Scheduled
Query frequency	15m
Query period	15m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ApacheHTTPServer/Analytic Rules/ApacheCommandInURI.yaml
Version	1.0.1
Arm template	54da6a42-3b00-11ec-8d3d-0242ac130003.json

KQL

let cmd_list = dynamic(['whoami', 'dpkg', 'useradd', 'sudo', 'cat']);
ApacheHTTPServer
| where UrlOriginal has_any (cmd_list)
| extend UrlCustomEntity = UrlOriginal

YAML

id: 54da6a42-3b00-11ec-8d3d-0242ac130003
requiredDataConnectors:
- dataTypes:
  - ApacheHTTPServer
  connectorId: ApacheHTTPServer
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ApacheHTTPServer/Analytic Rules/ApacheCommandInURI.yaml
relevantTechniques:
- T1190
- T1133
kind: Scheduled
name: Apache - Command in URI
queryFrequency: 15m
query: |
  let cmd_list = dynamic(['whoami', 'dpkg', 'useradd', 'sudo', 'cat']);
  ApacheHTTPServer
  | where UrlOriginal has_any (cmd_list)
  | extend UrlCustomEntity = UrlOriginal  
severity: High
triggerThreshold: 0
tactics:
- InitialAccess
entityMappings:
- fieldMappings:
  - columnName: UrlCustomEntity
    identifier: Url
  entityType: URL
version: 1.0.1
queryPeriod: 15m
description: |
    'Detects command in URI'
status: Available

ARM

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2023-02-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/54da6a42-3b00-11ec-8d3d-0242ac130003')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/54da6a42-3b00-11ec-8d3d-0242ac130003')]",
      "properties": {
        "alertRuleTemplateName": "54da6a42-3b00-11ec-8d3d-0242ac130003",
        "customDetails": null,
        "description": "'Detects command in URI'\n",
        "displayName": "Apache - Command in URI",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "URL",
            "fieldMappings": [
              {
                "columnName": "UrlCustomEntity",
                "identifier": "Url"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ApacheHTTPServer/Analytic Rules/ApacheCommandInURI.yaml",
        "query": "let cmd_list = dynamic(['whoami', 'dpkg', 'useradd', 'sudo', 'cat']);\nApacheHTTPServer\n| where UrlOriginal has_any (cmd_list)\n| extend UrlCustomEntity = UrlOriginal\n",
        "queryFrequency": "PT15M",
        "queryPeriod": "PT15M",
        "severity": "High",
        "status": "Available",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess"
        ],
        "techniques": [
          "T1133",
          "T1190"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}