Probable AdFind Recon Tool Usage

let args = dynamic(["objectcategory","domainlist","dcmodes","adinfo","trustdmp","computers_pwdnotreqd","Domain Admins", "objectcategory=person", "objectcategory=computer", "objectcategory=*","dclist"]);
let parentProcesses = dynamic(["pwsh.exe","powershell.exe","cmd.exe"]);
DeviceProcessEvents
//looks for execution from a shell
| where InitiatingProcessFileName in (parentProcesses)
// main filter
| where FileName =~ "AdFind.exe" or SHA256 == "c92c158d7c37fea795114fa6491fe5f145ad2f8c08776b18ae79db811e8e36a3"
   // AdFind common Flags to check for from various threat actor TTPs
    or ProcessCommandLine has_any (args)
| extend AccountCustomEntity = AccountName, HostCustomEntity = DeviceName, ProcessCustomEntity = InitiatingProcessFileName, CommandLineCustomEntity = ProcessCommandLine, AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = SHA256

severity: High
triggerThreshold: 0
queryFrequency: 1h
requiredDataConnectors:
- connectorId: MicrosoftThreatProtection
  dataTypes:
  - DeviceProcessEvents
id: c63ae777-d5e0-4113-8c9a-c2c9d3d09fcd
version: 1.0.1
name: Probable AdFind Recon Tool Usage
kind: Scheduled
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MicrosoftDefenderForEndpoint/Hunting Queries/MDE_Usage.yaml
queryPeriod: 1h
relevantTechniques:
- T1018
triggerOperator: gt
tactics:
- Discovery
query: |2

  let args = dynamic(["objectcategory","domainlist","dcmodes","adinfo","trustdmp","computers_pwdnotreqd","Domain Admins", "objectcategory=person", "objectcategory=computer", "objectcategory=*","dclist"]);
  let parentProcesses = dynamic(["pwsh.exe","powershell.exe","cmd.exe"]);
  DeviceProcessEvents
  //looks for execution from a shell
  | where InitiatingProcessFileName in (parentProcesses)
  // main filter
  | where FileName =~ "AdFind.exe" or SHA256 == "c92c158d7c37fea795114fa6491fe5f145ad2f8c08776b18ae79db811e8e36a3"
     // AdFind common Flags to check for from various threat actor TTPs
      or ProcessCommandLine has_any (args)
  | extend AccountCustomEntity = AccountName, HostCustomEntity = DeviceName, ProcessCustomEntity = InitiatingProcessFileName, CommandLineCustomEntity = ProcessCommandLine, AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = SHA256
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: AccountCustomEntity
- entityType: Host
  fieldMappings:
  - identifier: HostName
    columnName: HostCustomEntity
- entityType: Process
  fieldMappings:
  - identifier: ProcessId
    columnName: ProcessCustomEntity
  - identifier: CommandLine
    columnName: CommandLineCustomEntity
- entityType: FileHash
  fieldMappings:
  - identifier: Algorithm
    columnName: AlgorithmCustomEntity
  - identifier: Value
    columnName: FileHashCustomEntity
description: |
    'Identifies the host and account that executed AdFind by hash and filename in addition to common and unique flags that are used by many threat actors in discovery.'

{
  "$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/c63ae777-d5e0-4113-8c9a-c2c9d3d09fcd')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/c63ae777-d5e0-4113-8c9a-c2c9d3d09fcd')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01",
      "properties": {
        "displayName": "Probable AdFind Recon Tool Usage",
        "description": "'Identifies the host and account that executed AdFind by hash and filename in addition to common and unique flags that are used by many threat actors in discovery.'\n",
        "severity": "High",
        "enabled": true,
        "query": "\nlet args = dynamic([\"objectcategory\",\"domainlist\",\"dcmodes\",\"adinfo\",\"trustdmp\",\"computers_pwdnotreqd\",\"Domain Admins\", \"objectcategory=person\", \"objectcategory=computer\", \"objectcategory=*\",\"dclist\"]);\nlet parentProcesses = dynamic([\"pwsh.exe\",\"powershell.exe\",\"cmd.exe\"]);\nDeviceProcessEvents\n//looks for execution from a shell\n| where InitiatingProcessFileName in (parentProcesses)\n// main filter\n| where FileName =~ \"AdFind.exe\" or SHA256 == \"c92c158d7c37fea795114fa6491fe5f145ad2f8c08776b18ae79db811e8e36a3\"\n   // AdFind common Flags to check for from various threat actor TTPs\n    or ProcessCommandLine has_any (args)\n| extend AccountCustomEntity = AccountName, HostCustomEntity = DeviceName, ProcessCustomEntity = InitiatingProcessFileName, CommandLineCustomEntity = ProcessCommandLine, AlgorithmCustomEntity = \"SHA256\", FileHashCustomEntity = SHA256\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Discovery"
        ],
        "techniques": [
          "T1018"
        ],
        "alertRuleTemplateName": "c63ae777-d5e0-4113-8c9a-c2c9d3d09fcd",
        "customDetails": null,
        "entityMappings": [
          {
            "fieldMappings": [
              {
                "columnName": "AccountCustomEntity",
                "identifier": "FullName"
              }
            ],
            "entityType": "Account"
          },
          {
            "fieldMappings": [
              {
                "columnName": "HostCustomEntity",
                "identifier": "HostName"
              }
            ],
            "entityType": "Host"
          },
          {
            "fieldMappings": [
              {
                "columnName": "ProcessCustomEntity",
                "identifier": "ProcessId"
              },
              {
                "columnName": "CommandLineCustomEntity",
                "identifier": "CommandLine"
              }
            ],
            "entityType": "Process"
          },
          {
            "fieldMappings": [
              {
                "columnName": "AlgorithmCustomEntity",
                "identifier": "Algorithm"
              },
              {
                "columnName": "FileHashCustomEntity",
                "identifier": "Value"
              }
            ],
            "entityType": "FileHash"
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MicrosoftDefenderForEndpoint/Hunting Queries/MDE_Usage.yaml",
        "templateVersion": "1.0.1"
      }
    }
  ]
}