Suspicious Usage Of Active Directory Diagnostic Tool (ntdsutil.exe)

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About the rule

Rule Type

Standard

Rule Description

Detects execution of ntdsutil.exe to perform different actions such as restoring snapshots...etc.

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND (PROCESSNAME endswith "\ntdsutil.exe" OR ORIGINALFILENAME = "ntdsutil.exe") AND ((COMMANDLINE contains "snapshot" AND COMMANDLINE contains "mount ") OR (COMMANDLINE contains "ac" AND COMMANDLINE contains " i" AND COMMANDLINE contains " ntds")) select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Active Directory

Author

Nasreddine Bencherchali (Nextron Systems)