Probable AdFind Recon Tool Usage

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Id	c63ae777-d5e0-4113-8c9a-c2c9d3d09fcd
Rulename	Probable AdFind Recon Tool Usage
Description	This query identifies the host and account that executed AdFind, by hash and filename, in addition to the flags commonly utilized by various threat actors during the reconnaissance phase.
Severity	High
Tactics	Discovery
Techniques	T1016 T1018 T1069.002 T1087.002 T1482
Required data connectors	MicrosoftThreatProtection
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Attacker Tools Threat Protection Essentials/Analytic Rules/AdFind_Usage.yaml
Version	1.0.3
Arm template	c63ae777-d5e0-4113-8c9a-c2c9d3d09fcd.json

KQL

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 HostName = split(DeviceName, '.', 0)[0], DnsDomain = strcat_array(array_slice(split(DeviceName, '.'), 1, -1), '.'), FileHashAlgorithm = "SHA256"

YAML

queryPeriod: 1h
query: |
  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 HostName = split(DeviceName, '.', 0)[0], DnsDomain = strcat_array(array_slice(split(DeviceName, '.'), 1, -1), '.'), FileHashAlgorithm = "SHA256"  
name: Probable AdFind Recon Tool Usage
entityMappings:
- fieldMappings:
  - columnName: AccountName
    identifier: Name
  - columnName: AccountDomain
    identifier: UPNSuffix
  entityType: Account
- fieldMappings:
  - columnName: HostName
    identifier: HostName
  - columnName: DnsDomain
    identifier: DnsDomain
  entityType: Host
- fieldMappings:
  - columnName: InitiatingProcessFileName
    identifier: ProcessId
  - columnName: ProcessCommandLine
    identifier: CommandLine
  entityType: Process
- fieldMappings:
  - columnName: FileHashAlgorithm
    identifier: Algorithm
  - columnName: SHA256
    identifier: Value
  entityType: FileHash
queryFrequency: 1h
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Attacker Tools Threat Protection Essentials/Analytic Rules/AdFind_Usage.yaml
requiredDataConnectors:
- connectorId: MicrosoftThreatProtection
  dataTypes:
  - DeviceProcessEvents
description: |
    'This query identifies the host and account that executed AdFind, by hash and filename, in addition to the flags commonly utilized by various threat actors during the reconnaissance phase.'
kind: Scheduled
version: 1.0.3
status: Available
severity: High
relevantTechniques:
- T1016
- T1018
- T1069.002
- T1087.002
- T1482
triggerOperator: gt
triggerThreshold: 0
tactics:
- Discovery
id: c63ae777-d5e0-4113-8c9a-c2c9d3d09fcd

ARM