GPO 16-18: Windows Update через WSUS:
# GPO 16: Computer Configuration → Administrative Templates
# → Windows Components → Windows Update
# Specify intranet Microsoft update service location:
# Set the intranet update service: http://WSUS01-SG:8530
# Set the intranet statistics server: http://WSUS01-SG:8530
# GPO 17: Configure Automatic Updates:
# 4 — Auto download and schedule the install
# Scheduled install day: 0 (Every day)
# Scheduled install time: 03:00
# GPO 18: Enable client-side targeting:
# Target group name: Bank-Workstations
# Реестр для проверки на клиенте:
$wsusReg = "HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate"
Get-ItemProperty -Path $wsusReg
# WUServer : http://WSUS01-SG:8530
# WUStatusServer : http://WSUS01-SG:8530
# TargetGroupEnabled: 1
# TargetGroup : Bank-Workstations
GPO 19-20: Remote Desktop ограничения:
# GPO 19: Разрешение RDP только для группы SG-RDP-Users
# Computer Configuration → Windows Settings → Security Settings
# → Restricted Groups
# Group: Remote Desktop Users
# Members: SERVICEGROUP\SG-RDP-Users
# GPO 20: Ограничение сессий RDP
# Computer Configuration → Administrative Templates → Windows Components
# → Remote Desktop Services → Session Time Limits
# Set time limit for active but idle sessions: 30 minutes
# Set time limit for disconnected sessions: 60 minutes
# End session when time limits are reached: Enabled
GPO 21-25: Политики аудита — журналирование событий безопасности для соответствия требованиям регулятора:
# GPO 21-25: Advanced Audit Policy Configuration
# Computer Configuration → Windows Settings → Security Settings
# → Advanced Audit Policy Configuration
# GPO 21: Logon/Logoff
# Audit Logon: Success, Failure
# Audit Logoff: Success
# Audit Account Lockout: Success, Failure
# Audit Special Logon: Success
# GPO 22: Account Management
# Audit User Account Management: Success, Failure
# Audit Security Group Management: Success, Failure
# Audit Computer Account Management: Success
# GPO 23: Object Access
# Audit File System: Success, Failure (для файловых серверов)
# Audit Registry: Failure
# Audit Removable Storage: Success, Failure
# GPO 24: Policy Change
# Audit Audit Policy Change: Success, Failure
# Audit Authentication Policy Change: Success
# GPO 25: Privilege Use
# Audit Sensitive Privilege Use: Success, Failure
# Увеличение размера журнала Security
# Maximum log size: 1 GB
# Retention method: Overwrite events as needed
wevtutil sl Security /ms:1073741824
# Настройка пересылки событий на SIEM-сервер
wecutil qc /q # Включение Windows Event Collector
# Проверка применения аудита
auditpol /get /category:*
Все события безопасности пересылаются на SIEM-сервер банка (Splunk) для централизованного анализа и хранения в течение 5 лет согласно требованиям ЦБ.
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