AppLocker is a new feature in Windows7 and Windows Server 2008R2 that replaces the Software Restriction Policies feature. AppLocker contains new capabilities and extensions that reduce administrative overhead and help administrators control how users can access and use files, such as executable files, scripts, Windows Installer files, and DLLs. Using AppLocker, you can:
- Define rules based on file attributes derived from the digital signature, including the publisher, product name, file name, and file version. For example, you can create rules based on the publisher attribute that is persistent through updates, or you can create rules for a specific version of a file.
- Assign a rule to a security group or an individual user.
- Create exceptions to rules. For example, you can create a rule that allows all Windows processes to run except Registry Editor (Regedit.exe).
- Use audit-only mode to deploy the policy and understand its impact before enforcing it.
- Import and export rules. The import and export affects the entire policy. For example, if you export a policy, all of the rules from all of the rule collections are exported, including the enforcement settings for the rule collections. If you import a policy, the existing policy is overwritten.
- Simplify creating and managing AppLocker rules by using AppLocker PowerShell cmdlets.
To use AppLocker,just launch GPEDIT.MSC and go to Computer Configuration > Windows Settings > Security Settings > Application Control Policies > AppLocker to get a feel for how this works.