We delve into the hierarchy of WDAC rule levels, ranging from the most secure to the least secure, providing insight into their significance and implications for system security.
Understanding these levels is crucial for effectively implementing file attribute-based security measures in your Windows environment.
This document lists all of the levels of WDAC rules. From Top to bottom, from the most secure to the least secure, the levels are:
Important
These properties are mutable.
WDAC creates file rules based on file attributes when you scan a folder using a level such as FilePublisher
. Each file rule has a MinimumVersion
and only one of the six SpecificFileNameLevels
.
For instance, suppose a folder has 10 signed files with identical signatures and product names (or File Descriptions etc.).
In that case, WDAC creates a single file rule with the product name (or File Description etc.) and the lowest version of the 10 files. This file rule is sufficient to allow all 10 files.
The MinimumVersion
is the smallest version among the files with the same signature and SpecificFileNameLevel in the folder.
Find more information in Microsoft Learn
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