IT, Information Security Services
Randy Moore
Nathan Gibson
Greg Bostic

Security Project Update
– Active Directory Cleanup Project
• “Cleaning the house” -- getting rid of old computer accounts
– Active Directory GPO project
• Establishing a security baseline
– E-Policy Orchestrator Project
• Mirroring ePO with AD
• Centrally Managing
• Using the tools we have available

• GPOs cannot be applied on the computers container
• ePO Sync would be inaccurate
• Hard to manage with erroneous accounts present

• 1200 inactive computer accounts disabled and moved into the disabled.comps OU
• Computer Accounts have been moved from the
Computers container into the UnAssigned.Comps OU
• GPO w/ login script applied to UnAssigned.Comps OU

• All new computers should have account created prior to joining domain.
• Computer Account Lifecycle procedure
– 30 days UnAssigned.Comp – Active
– 30 days disabled.comps – Inactive
– On the 60th day Computer Account deleted
• New Computer Checklist

Cleaning Your OU
• Weed out old Computer Accounts
– Use Active Directory Users and Computers
– Go to “View” in the MMC
– Check “Advanced Features”
– Go to “View” and choose “Add/Remove Columns”
– In the left hand “Available columns” table choose
“Modified” and click “Add ->”
– Hit OK

McAfee E-Policy Orchestrator Project(ePO)

• Provides a way to centrally manage Anti Virus protection on all managed devices
• Syncs with Active Directory
• Automatically installs/uninstalls AV
• Automatic DAT updates
• Customizable policies
• Notification Capabilities
• Report Generation

Greg Bostic
2 nd Annual Cyber Security Day
October 24, 2007
10:00 am

Cyber Security Day
• Tier 1 Training
• Business Manager Briefings
• End User Briefings

Security Baseline
Active Directory GPO Project

• Group Policy Objects:
1. Allows you to configure baseline settings to ensure all resources have the same settings
2. Ease the administrative overhead in applying and modifying end user device and servers.
3.
“One-Stop-Shop” for demonstrating policy compliance

• Round 2 Settings
Setting 1-
HSC-IT-Automatic Updates (Workstation Only)
– Enable Windows Updates Power management to automatically wake up the system:
Enabled
– 4- Auto Download and Schedule the Install
– Schedule Install Day: 0-Everyday
– Scheduled Install Time: 0300
Setting 2-
HSC-IT-No Display Last User Login
– Interactive logon: do not display last user name: Enabled

No Last User Name Impact
6,387
Computer that will be affected by “No Last
Username GPO”
3,419
Computer with “No
Last Username” already set

Screen Saver Impact
3,419
Computers that have screensavers
7,132
Computers with no screensaver

• Standardize GPO naming scheme
– Dept-XXXX
– Delete Old GPOs
– Combine GPOs If possible
– Remove GPOs with settings applied at higher lever

FUTURE GPO Settings
• Event Logging
– Account Management: Success
– Account Logon/Logoff: Success/Failure
– Policy Change: Success
– System Events: Success/Failure
• Screen Saver
– Hide Screen Saver Tab: Enabled
– Screen Saver: Enabled
– Password protect the Screen Saver: Enabled
– Screen Saver Timeout: 600(900?)

http://it.ouhsc.edu/services/infosecurity/Projects.asp