Microsoft Sentinel Analytic Rules
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Contrast Exploits

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Ide1abb6ed-be18-40fd-be58-3d3d84041daf
RulenameContrast Exploits
DescriptionCreates Incidents for Exploit events sourced from the Contrast Protect agent.
SeverityHigh
TacticsInitialAccess
Exfiltration
TechniquesT1566
Required data connectorsCefAma
ContrastProtect
ContrastProtectAma
KindScheduled
Query frequency5m
Query period5m
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Contrast Protect/Analytic Rules/ContrastExploits.yaml
Version1.0.2
Arm templatee1abb6ed-be18-40fd-be58-3d3d84041daf.json
Deploy To Azure
let extract_data=(a:string, k:string) {
  parse_urlquery(replace(@';', @'&', a))["Query Parameters"][k]
};

CommonSecurityLog 
| where DeviceVendor == "Contrast Security"
| where AdditionalExtensions contains "EXPLOITED"
| extend DeviceProduct
| extend SourceIP
| extend DeviceVersion
| extend Activity
| extend ApplicationProtocol
| extend RequestURL
| extend RequestMethod
| extend Rule = extract_data(AdditionalExtensions, 'pri')
customDetails:
  Application: ApplicationProtocol
  Agent: DeviceProduct
  Attack: Activity
  Details: AdditionalExtensions
  AgentVersion: DeviceVersion
status: Available
id: e1abb6ed-be18-40fd-be58-3d3d84041daf
query: |
  let extract_data=(a:string, k:string) {
    parse_urlquery(replace(@';', @'&', a))["Query Parameters"][k]
  };

  CommonSecurityLog 
  | where DeviceVendor == "Contrast Security"
  | where AdditionalExtensions contains "EXPLOITED"
  | extend DeviceProduct
  | extend SourceIP
  | extend DeviceVersion
  | extend Activity
  | extend ApplicationProtocol
  | extend RequestURL
  | extend RequestMethod
  | extend Rule = extract_data(AdditionalExtensions, 'pri')  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Contrast Protect/Analytic Rules/ContrastExploits.yaml
description: |
    'Creates Incidents for Exploit events sourced from the Contrast Protect agent.'
name: Contrast Exploits
relevantTechniques:
- T1566
entityMappings:
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: SourceIP
- entityType: URL
  fieldMappings:
  - identifier: Url
    columnName: RequestURL
- entityType: CloudApplication
  fieldMappings:
  - identifier: Name
    columnName: ApplicationProtocol
- entityType: Malware
  fieldMappings:
  - identifier: Name
    columnName: Activity
  - identifier: Category
    columnName: Rule
triggerThreshold: 0
severity: High
requiredDataConnectors:
- dataTypes:
  - CommonSecurityLog
  connectorId: ContrastProtect
- dataTypes:
  - CommonSecurityLog
  connectorId: ContrastProtectAma
- dataTypes:
  - CommonSecurityLog
  connectorId: CefAma
queryFrequency: 5m
queryPeriod: 5m
version: 1.0.2
kind: Scheduled
tactics:
- InitialAccess
- Exfiltration
triggerOperator: gt
{
  "$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/e1abb6ed-be18-40fd-be58-3d3d84041daf')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/e1abb6ed-be18-40fd-be58-3d3d84041daf')]",
      "properties": {
        "alertRuleTemplateName": "e1abb6ed-be18-40fd-be58-3d3d84041daf",
        "customDetails": {
          "Agent": "DeviceProduct",
          "AgentVersion": "DeviceVersion",
          "Application": "ApplicationProtocol",
          "Attack": "Activity",
          "Details": "AdditionalExtensions"
        },
        "description": "'Creates Incidents for Exploit events sourced from the Contrast Protect agent.'\n",
        "displayName": "Contrast Exploits",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "SourceIP",
                "identifier": "Address"
              }
            ]
          },
          {
            "entityType": "URL",
            "fieldMappings": [
              {
                "columnName": "RequestURL",
                "identifier": "Url"
              }
            ]
          },
          {
            "entityType": "CloudApplication",
            "fieldMappings": [
              {
                "columnName": "ApplicationProtocol",
                "identifier": "Name"
              }
            ]
          },
          {
            "entityType": "Malware",
            "fieldMappings": [
              {
                "columnName": "Activity",
                "identifier": "Name"
              },
              {
                "columnName": "Rule",
                "identifier": "Category"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Contrast Protect/Analytic Rules/ContrastExploits.yaml",
        "query": "let extract_data=(a:string, k:string) {\n  parse_urlquery(replace(@';', @'&', a))[\"Query Parameters\"][k]\n};\n\nCommonSecurityLog \n| where DeviceVendor == \"Contrast Security\"\n| where AdditionalExtensions contains \"EXPLOITED\"\n| extend DeviceProduct\n| extend SourceIP\n| extend DeviceVersion\n| extend Activity\n| extend ApplicationProtocol\n| extend RequestURL\n| extend RequestMethod\n| extend Rule = extract_data(AdditionalExtensions, 'pri')\n",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Exfiltration",
          "InitialAccess"
        ],
        "techniques": [
          "T1566"
        ],
        "templateVersion": "1.0.2",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}