Access To Windows DPAPI Master Keys By Uncommon Applications
This rule detects attempts by uncommon applications to access Windows Data Protection API (DPAPI) Master Keys. Such access can indicate credential theft, for example, through tools like Mimikatz's "dpapi::masterkey" function. The rule specifically looks for file access requests to the DPAPI master key directories for both system and user accounts, while filtering out access from common system and program files locations to reduce false positives.
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