Detectionhightest

NTDS.DIT Creation By Uncommon Process

Detects creation of a file named "ntds.dit" (Active Directory Database) by an uncommon process or a process located in a suspicious directory

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Launch

Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)Created Tue Jan 11Updated Thu Jul 1411b1ed55-154d-4e82-8ad7-83739298f720windows

Log Source

WindowsFile Event

ProductWindows← raw: windows

CategoryFile Event← raw: file_event

Events for file system activity including creation, modification, and deletion.

Detection Logic

detection:
    selection_ntds:
        TargetFilename|endswith: '\ntds.dit'
    selection_process_img:
        Image|endswith:
            # Add more suspicious processes as you see fit
            - '\cmd.exe'
            - '\cscript.exe'
            - '\mshta.exe'
            - '\powershell.exe'
            - '\pwsh.exe'
            - '\regsvr32.exe'
            - '\rundll32.exe'
            - '\wscript.exe'
            - '\wsl.exe'
            - '\wt.exe'
    selection_process_paths:
        Image|contains:
            - '\AppData\'
            - '\Temp\'
            - '\Public\'
            - '\PerfLogs\'
    condition: selection_ntds and 1 of selection_process_*