Get-ADUser Enumeration Using UserAccountControl Flags
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About the rule
Rule Type
Standard
Rule Description
Detects AS-REP roasting is an attack that is often-overlooked. It is not very common as you have to explicitly set accounts that do not require pre-authentication.
Severity
Trouble
Rule Requirement
Criteria
Action1:
actionname = "PowerShell Script Block Logged" AND SCRIPTEXECUTED contains "Get-ADUser" AND SCRIPTEXECUTED contains "-Filter" AND SCRIPTEXECUTED contains "useraccountcontrol" AND SCRIPTEXECUTED contains "-band" AND SCRIPTEXECUTED contains "4194304"
select Action1.HOSTNAME,Action1.MESSAGE,Action1.SCRIPTEXECUTED,Action1.DOMAIN,Action1.PATH,Action1.USERNAME
Detection
Execution Mode
realtime
Log Sources
Active Directory
Author
frack113
