Suspicious Application Allowed Through Exploit Guard
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About the rule
Rule Type
Standard
Rule Description
Detects applications being added to the "allowed applications" list of exploit guard in order to bypass controlled folder settings
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Registry value modified" AND (OBJECTNAME contains "SOFTWARE\Microsoft\Windows Defender\Windows Defender Exploit Guard\Controlled Folder Access\AllowedApplications" OR (OBJECTNAME endswith "SOFTWARE\Microsoft\Windows Defender\Windows Defender Exploit Guard\Controlled Folder Access" AND OBJECTVALUENAME startswith "AllowedApplications")) AND (OBJECTNAME contains "\Users\Public\,\AppData\Local\Temp\,\Desktop\,\PerfLogs\,\Windows\Temp" OR ((OBJECTNAME endswith "\Users\Public" AND isExist(OBJECTVALUENAME)) OR (OBJECTNAME endswith "\AppData\Local\Temp" AND isExist(OBJECTVALUENAME)) OR (OBJECTNAME endswith "\Desktop" AND isExist(OBJECTVALUENAME)) OR (OBJECTNAME endswith "\PerfLogs" AND isExist(OBJECTVALUENAME)) OR (OBJECTNAME endswith "\Windows\Temp" AND isExist(OBJECTVALUENAME)))) 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)
