NTDS.DIT Creation By Uncommon Parent Process

testhigh
Log-Quelle: windows · file_eventAutor Florian Roth (Nextron Systems)Datum 2022-03-11
01

Beschreibung

Was dies ist, in Kürze.

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

02

Tags

attack.credential-accessattack.t1003.003
03

Regelquelle (YAML)

title: NTDS.DIT Creation By Uncommon Parent Process
id: 4e7050dd-e548-483f-b7d6-527ab4fa784d
related:
    - id: 11b1ed55-154d-4e82-8ad7-83739298f720
      type: similar
status: test
description: Detects creation of a file named "ntds.dit" (Active Directory Database) by an uncommon parent process or directory
references:
    - https://www.ired.team/offensive-security/credential-access-and-credential-dumping/ntds.dit-enumeration
    - https://www.n00py.io/2022/03/manipulating-user-passwords-without-mimikatz/
    - https://pentestlab.blog/tag/ntds-dit/
    - https://github.com/samratashok/nishang/blob/414ee1104526d7057f9adaeee196d91ae447283e/Gather/Copy-VSS.ps1
author: Florian Roth (Nextron Systems)
date: 2022-03-11
modified: 2023-01-05
tags:
    - attack.credential-access
    - attack.t1003.003
logsource:
    product: windows
    category: file_event
    definition: 'Requirements: The "ParentImage" field is not available by default on EID 11 of Sysmon logs. To be able to use this rule to the full extent you need to enrich the log with additional ParentImage data'
detection:
    selection_file:
        TargetFilename|endswith: '\ntds.dit'
    selection_process_parent:
        # Note: ParentImage is a custom field and is not available by default on Sysmon EID 11
        ParentImage|endswith:
            - '\cscript.exe'
            - '\httpd.exe'
            - '\nginx.exe'
            - '\php-cgi.exe'
            - '\powershell.exe'
            - '\pwsh.exe'
            - '\w3wp.exe'
            - '\wscript.exe'
    selection_process_parent_path:
        # Note: ParentImage is a custom field and is not available by default on Sysmon EID 11
        ParentImage|contains:
            - '\apache'
            - '\tomcat'
            - '\AppData\'
            - '\Temp\'
            - '\Public\'
            - '\PerfLogs\'
    condition: selection_file and 1 of selection_process_*
falsepositives:
    - Unknown
level: high
04

erkennt Techniken (1)

ATT&CK-Techniken, die dies ermöglicht oder abbildet.

05

Referenzen

Externe Belege — Patches, Meldungen, Analysen.