IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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PowerShell Script with Password Policy Discovery Capabilities

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PowerShell Script with Password Policy Discovery Capabilities

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Identifies the use of Cmdlets and methods related to remote execution activities using WinRM. Attackers can abuse WinRM to perform lateral movement using built-in tools.

Rule type: query

Rule indices:

winlogbeat-*
logs-windows.*

Severity: low

Risk score: 21

Runs every: 60m

Searches indices from: now-119m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References: None

Tags:

Domain: Endpoint
OS: Windows
Use Case: Threat Detection
Tactic: Discovery
Tactic: Execution
Data Source: PowerShell Logs
Rule Type: BBR

Version: 3

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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event.category: "process" and host.os.type:windows and
(
  powershell.file.script_block_text: (
    "Get-ADDefaultDomainPasswordPolicy" or
    "Get-ADFineGrainedPasswordPolicy" or
    "Get-ADUserResultantPasswordPolicy" or
    "Get-DomainPolicy" or
    "Get-GPPPassword" or
    "Get-PassPol"
  )
  or
  powershell.file.script_block_text: (
    ("defaultNamingContext" or "ActiveDirectory.DirectoryContext" or "ActiveDirectory.DirectorySearcher") and
    (
      (
        ".MinLengthPassword" or
        ".MinPasswordAge" or
        ".MaxPasswordAge"
      ) or
      (
        "minPwdAge" or
        "maxPwdAge" or
        "minPwdLength"
      ) or
      (
        "msDS-PasswordSettings"
      )
    )
  )
) and not powershell.file.script_block_text : (
    "sentinelbreakpoints" and "Set-PSBreakpoint" and "PowerSploitIndicators"
  )
  and not user.id : "S-1-5-18"

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
Technique:
- Name: Password Policy Discovery
- ID: T1201
- Reference URL: https://attack.mitre.org/techniques/T1201/
Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
Technique:
- Name: Command and Scripting Interpreter
- ID: T1059
- Reference URL: https://attack.mitre.org/techniques/T1059/
Sub-technique:
- Name: PowerShell
- ID: T1059.001
- Reference URL: https://attack.mitre.org/techniques/T1059/001/

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