title: PowerShell DownGradeAttack description: hogehoge enabled: true author: Yea logsource: product: windows detection: selection: Channel: Windows PowerShell EventID: 400 EventData: '[\s\S]*EngineVersion=2.0[\s\S]*' falsepositives: - unknown level: medium output: 'Powershell DownGrade Attack Detected!!' creation_date: 2020/11/8 updated_date: 2020/11/8