When you remove administrative rights for applications using the Remove Administrative Rights action, there is an advanced feature that allows you to apply restricted Security Identifiers (SIDs), which further restricts access to securable objects.
What is a Restricted SID?
A Restricted ID is an access token that modifies a user's access to securable objects and controls a user's ability to perform various system-related operations on the local computer.
When a restricted process or thread tries to access a securable object, the system performs two access checks: one using the token's enabled SIDs, and another using the list of restricted SIDs. Access is granted only if both access checks allow the requested access rights. (For more information about restricted SIDs, go to the Microsoft Developer Network Library at https://msdn.microsoft.com/en-us/library/windows/desktop/aa379316(v=vs.85).aspx.)
When to Use Restricted ID
Use a restricted SID to further restrict the applications in the sandbox, which you can use as another method of Orangelisting. In other words, this is a way to protect yourself against unknown applications if you don't want to implement blacklisting.
The restricted SID will allow only Read access to the user registry but not to the local machine registry. Also, restricted processes do not have rights to open any network-based resource, such as file servers. As a result, the restricted SID will be able to do very little and apps may not work correctly under this model. Ultimately, apps in the sandbox that have restricted SID applied to them will be severely locked down.
Apply Restricted SID
To apply restricted SID, do the following steps:
- In the Security Manager Console, click the Policies tab.
- In the file library in the left pane, navigate to Arellia Solutions > Application Control > Actions > Process Rights > Remove Administrative Rights.
- In the right pane under Action Type, select the Apply Restricted SID (advanced) check box.
- Click the Save button.
Related Links
What is this thing called SID?
[EDITING] Application Sandboxing