Potential Signing Bypass Via Windows Developer Features - Registry
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About the rule
Rule Type
Standard
Rule Description
Detects when the enablement of developer features such as "Developer Mode" or "Application Sideloading". Which allows the user to install untrusted packages.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Registry value modified" AND (OBJECTNAME contains "\Microsoft\Windows\CurrentVersion\AppModelUnlock,\Policies\Microsoft\Windows\Appx" OR ((OBJECTNAME endswith "\Microsoft\Windows\CurrentVersion" AND OBJECTVALUENAME startswith "AppModelUnlock") OR (OBJECTNAME endswith "\Policies\Microsoft\Windows\Appx" AND isExist(OBJECTVALUENAME)))) AND OBJECTNAME endswith "\AllowAllTrustedApps,\AllowDevelopmentWithoutDevLicense" AND (INFORMATION = "DWORD (0x00000001)" OR (CHANGES = 1 AND NEWTYPE = "REG_DWORD")) select Action1.HOSTNAME,Action1.MESSAGE,Action1.OBJECTNAME,Action1.PROCESSNAME,Action1.PREVVAL,Action1.CHANGES
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Nasreddine Bencherchali (Nextron Systems)
