Add Debugger Entry To AeDebug For Persistence
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About the rule
Rule Type
Standard
Rule Description
Detects when an attacker adds a new "Debugger" value to the "AeDebug" key in order to achieve persistence which will get invoked when an application crashes
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Registry value modified" AND ((OBJECTNAME contains "\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug\Debugger" OR (OBJECTNAME endswith "\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug" AND OBJECTVALUENAME startswith "Debugger")) AND INFORMATION endswith ".dll") AND INFORMATION != ""C:\WINDOWS\system32\vsjitdebugger.exe" -p %ld -e %ld -j 0x%p" 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)
