Jonhnathan
aa97487b20
* [Rule Tuning] PowerShell Rules * Update defense_evasion_posh_defender_tampering.toml * [Rule Tuning] Connection to Commonly Abused Web Services * Revert "[Rule Tuning] Connection to Commonly Abused Web Services" This reverts commit 74dcea07e16a2b50ee8a372aef63a7c699e7c66a.
122 lines
3.1 KiB
TOML
122 lines
3.1 KiB
TOML
[metadata]
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creation_date = "2023/07/12"
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integration = ["windows"]
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maturity = "production"
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updated_date = "2025/09/03"
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[rule]
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author = ["Elastic"]
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building_block_type = "default"
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description = """
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Identifies the use of Cmdlets and methods related to remote execution activities using WinRM. Attackers can abuse WinRM
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to perform lateral movement using built-in tools.
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"""
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from = "now-119m"
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index = ["winlogbeat-*", "logs-windows.powershell*"]
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interval = "60m"
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language = "kuery"
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license = "Elastic License v2"
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name = "PowerShell Script with Password Policy Discovery Capabilities"
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risk_score = 21
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rule_id = "fe25d5bc-01fa-494a-95ff-535c29cc4c96"
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setup = """## Setup
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The 'PowerShell Script Block Logging' logging policy must be enabled.
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Steps to implement the logging policy with Advanced Audit Configuration:
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```
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Computer Configuration >
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Administrative Templates >
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Windows PowerShell >
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Turn on PowerShell Script Block Logging (Enable)
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```
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Steps to implement the logging policy via registry:
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```
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reg add "hklm\\SOFTWARE\\Policies\\Microsoft\\Windows\\PowerShell\\ScriptBlockLogging" /v EnableScriptBlockLogging /t REG_DWORD /d 1
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```
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"""
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severity = "low"
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tags = [
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"Domain: Endpoint",
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"OS: Windows",
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"Use Case: Threat Detection",
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"Tactic: Discovery",
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"Tactic: Execution",
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"Data Source: PowerShell Logs",
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"Rule Type: BBR",
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]
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timestamp_override = "event.ingested"
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type = "query"
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query = '''
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event.category: "process" and host.os.type:windows and
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(
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powershell.file.script_block_text: (
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"Get-ADDefaultDomainPasswordPolicy" or
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"Get-ADFineGrainedPasswordPolicy" or
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"Get-ADUserResultantPasswordPolicy" or
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"Get-DomainPolicy" or
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"Get-GPPPassword" or
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"Get-PassPol"
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)
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or
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powershell.file.script_block_text: (
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("defaultNamingContext" or "ActiveDirectory.DirectoryContext" or "ActiveDirectory.DirectorySearcher") and
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(
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(
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".MinLengthPassword" or
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".MinPasswordAge" or
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".MaxPasswordAge"
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) or
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(
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"minPwdAge" or
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"maxPwdAge" or
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"minPwdLength"
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) or
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(
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"msDS-PasswordSettings"
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)
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)
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)
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) and
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not powershell.file.script_block_text : ("sentinelbreakpoints" and "Set-PSBreakpoint" and "PowerSploitIndicators") and
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not powershell.file.script_block_text : ("43c15630-959c-49e4-a977-758c5cc93408" and "CmdletsToExport" and "ActiveDirectory.Types.ps1xml") and
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not file.directory: "C:\Program Files\LogicMonitor\Agent\tmp" and
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not user.id : "S-1-5-18"
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1201"
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name = "Password Policy Discovery"
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reference = "https://attack.mitre.org/techniques/T1201/"
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[rule.threat.tactic]
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id = "TA0007"
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name = "Discovery"
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reference = "https://attack.mitre.org/tactics/TA0007/"
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1059"
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name = "Command and Scripting Interpreter"
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reference = "https://attack.mitre.org/techniques/T1059/"
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[[rule.threat.technique.subtechnique]]
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id = "T1059.001"
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name = "PowerShell"
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reference = "https://attack.mitre.org/techniques/T1059/001/"
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[rule.threat.tactic]
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id = "TA0002"
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name = "Execution"
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reference = "https://attack.mitre.org/tactics/TA0002/"
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