Raiders of the Elevated Token: Understanding User Account Control and Session Isolation Raymond P.L. Comvalius Independent IT Infrastructure Architect NEXTXPERT WCL325
@nextxpert
The Administrator The account named ‘administrator’ An Administrator Your name with administrator privileges Protected Administrator AKA: ‘Administrator in Admin Approval Mode’ Standard User Your name without administrator privileges
Administrators Backup Operators Power Users Network Configuration Operators Cryptographic Operators Domain Admins Schema Admins Enterprise Admins Group Policy Creator Owners Domain Controllers Enterprise Read-Only Domain Controllers Account Operators Print Operators Server Operators RAS Servers Pre-Windows 2000 Compatible Access Remove all except: Bypass traverse checking Shutdown the System Remove computer from Docking station Increase a process working set Change the Time zone
With or without administrative privileges Analyzing the User Token Demo
Configuring UAC Demo
SystemHigh Medium (Default) Low Services AdministratorsStandard Users IE Protected Mode
Integrity Level: Medium (Restricted Token) Integrity Level: High (Elevated Token)
Internet Explorer 8 Internet Explorer 9/10
iexplore.exe (management process) iexplore.exe (content process) Protected-mode Broker Object UI Frame Favorites Bar Command Bar Browser Helper Objects ActiveX Controls Toolbar Extensions Browser Helper Objects ActiveX Controls Toolbar Extensions
Integrity Levels Demo
File & Registry Virtualization Demo
File Names & Manifests Demo
Compatibility Settings Demo
Session 0 Isolation Demo
DD D Kernel Drivers D D User-mode Drivers D DD Service 1 Service 2 Service 3 Service … Service … Service A Service B
Concluding
WCL301: Case of the Unexplained Find Me Later At the Technical Learning Center WCL402: App Compat for Nerds
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