Enable LM Hash Storage
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About the rule
Rule Type
Standard
Rule Description
Detects changes to the "NoLMHash" registry value in order to allow Windows to store LM Hashes. By setting this registry value to "0" (DWORD), Windows will be allowed to store a LAN manager hash of your password in Active Directory and local SAM databases.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Registry value modified" AND (OBJECTNAME endswith "System\CurrentControlSet\Control\Lsa\NoLMHash" OR (OBJECTNAME endswith "System\CurrentControlSet\Control\Lsa" AND OBJECTVALUENAME = "NoLMHash")) AND (INFORMATION = "DWORD (0x00000000)" OR (CHANGES = 0 AND NEWTYPE = "REG_DWORD")) select Action1.HOSTNAME,Action1.MESSAGE,Action1.OBJECTNAME,Action1.PROCESSNAME,Action1.PREVVAL,Action1.CHANGES
Detection
Execution Mode
realtime
Log Sources
Active Directory
Author
Nasreddine Bencherchali (Nextron Systems)
