RunningRAT request parameters

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Id	baedfdf4-7cc8-45a1-81a9-065821628b83
Rulename	RunningRAT request parameters
Description	This detection will alert when RunningRAT URI parameters or paths are detect in an HTTP request. Id the device blocked this communication presence of this alert means the RunningRAT implant is likely still executing on the source host.
Severity	High
Tactics	Exfiltration CommandAndControl
Techniques	T1041 T1071.001
Required data connectors	CheckPoint Fortinet PaloAltoNetworks Zscaler
Kind	Scheduled
Query frequency	1d
Query period	1d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Detections/CommonSecurityLog/CreepySnailURLParameters.yaml
Version	1.0.2
Arm template	baedfdf4-7cc8-45a1-81a9-065821628b83.json

KQL

let runningRAT_parameters = dynamic(['/ui/chk', 'mactok=', 'UsRnMe=', 'IlocalP=', 'kMnD=']);
CommonSecurityLog
| where RequestMethod == "GET"
| project TimeGenerated, DeviceVendor, DeviceProduct, DeviceAction, DestinationDnsDomain, DestinationIP, RequestURL, SourceIP, SourceHostName, RequestClientApplication
| where RequestURL has_any (runningRAT_parameters)

YAML

description: |
  'This detection will alert when RunningRAT URI parameters or paths are detect in an HTTP request.
  Id the device blocked this communication presence of this alert means the RunningRAT implant is likely still executing on the source host.'  
queryPeriod: 1d
triggerThreshold: 0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Detections/CommonSecurityLog/CreepySnailURLParameters.yaml
id: baedfdf4-7cc8-45a1-81a9-065821628b83
kind: Scheduled
requiredDataConnectors:
- connectorId: Zscaler
  dataTypes:
  - CommonSecurityLog
- connectorId: Fortinet
  dataTypes:
  - CommonSecurityLog
- connectorId: CheckPoint
  dataTypes:
  - CommonSecurityLog
- connectorId: PaloAltoNetworks
  dataTypes:
  - CommonSecurityLog
metadata:
  support:
    tier: Community
  source:
    kind: Community
  categories:
    domains:
    - Security - Others
  author:
    name: Thomas McElroy
tactics:
- Exfiltration
- CommandAndControl
severity: High
triggerOperator: gt
tags:
- POLONIUM
version: 1.0.2
query: |
  let runningRAT_parameters = dynamic(['/ui/chk', 'mactok=', 'UsRnMe=', 'IlocalP=', 'kMnD=']);
  CommonSecurityLog
  | where RequestMethod == "GET"
  | project TimeGenerated, DeviceVendor, DeviceProduct, DeviceAction, DestinationDnsDomain, DestinationIP, RequestURL, SourceIP, SourceHostName, RequestClientApplication
  | where RequestURL has_any (runningRAT_parameters)  
name: RunningRAT request parameters
queryFrequency: 1d
relevantTechniques:
- T1041
- T1071.001
entityMappings:
- fieldMappings:
  - columnName: SourceIP
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: DestinationIP
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: SourceHostName
    identifier: HostName
  entityType: Host
- fieldMappings:
  - columnName: RequestURL
    identifier: Url
  entityType: URL

ARM

{
  "$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/baedfdf4-7cc8-45a1-81a9-065821628b83')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/baedfdf4-7cc8-45a1-81a9-065821628b83')]",
      "properties": {
        "alertRuleTemplateName": "baedfdf4-7cc8-45a1-81a9-065821628b83",
        "customDetails": null,
        "description": "'This detection will alert when RunningRAT URI parameters or paths are detect in an HTTP request.\nId the device blocked this communication presence of this alert means the RunningRAT implant is likely still executing on the source host.'\n",
        "displayName": "RunningRAT request parameters",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "SourceIP",
                "identifier": "Address"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "DestinationIP",
                "identifier": "Address"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "SourceHostName",
                "identifier": "HostName"
              }
            ]
          },
          {
            "entityType": "URL",
            "fieldMappings": [
              {
                "columnName": "RequestURL",
                "identifier": "Url"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Detections/CommonSecurityLog/CreepySnailURLParameters.yaml",
        "query": "let runningRAT_parameters = dynamic(['/ui/chk', 'mactok=', 'UsRnMe=', 'IlocalP=', 'kMnD=']);\nCommonSecurityLog\n| where RequestMethod == \"GET\"\n| project TimeGenerated, DeviceVendor, DeviceProduct, DeviceAction, DestinationDnsDomain, DestinationIP, RequestURL, SourceIP, SourceHostName, RequestClientApplication\n| where RequestURL has_any (runningRAT_parameters)\n",
        "queryFrequency": "P1D",
        "queryPeriod": "P1D",
        "severity": "High",
        "subTechniques": [
          "T1071.001"
        ],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CommandAndControl",
          "Exfiltration"
        ],
        "tags": [
          "POLONIUM"
        ],
        "techniques": [
          "T1041",
          "T1071"
        ],
        "templateVersion": "1.0.2",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}