Sensitive File Dump Via Wbadmin.EXE

testhigh
log source: windows · process_creationauthor Nasreddine Bencherchali (Nextron Systems), frack113date 2024-05-10
01

description

What this is, in brief.

Detects the dump of highly sensitive files such as "NTDS.DIT" and "SECURITY" hive. Attackers can leverage the "wbadmin" utility in order to dump sensitive files that might contain credential or sensitive information.

02

tags

attack.credential-accessattack.t1003.003
03

rule source (YAML)

title: Sensitive File Dump Via Wbadmin.EXE
id: 8b93a509-1cb8-42e1-97aa-ee24224cdc15
status: test
description: |
    Detects the dump of highly sensitive files such as "NTDS.DIT" and "SECURITY" hive.
    Attackers can leverage the "wbadmin" utility in order to dump sensitive files that might contain credential or sensitive information.
references:
    - https://github.com/LOLBAS-Project/LOLBAS/blob/2cc01b01132b5c304027a658c698ae09dd6a92bf/yml/OSBinaries/Wbadmin.yml
    - https://lolbas-project.github.io/lolbas/Binaries/Wbadmin/
    - https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/wbadmin-start-recovery
    - https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/wbadmin-start-backup
author: Nasreddine Bencherchali (Nextron Systems), frack113
date: 2024-05-10
tags:
    - attack.credential-access
    - attack.t1003.003
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\wbadmin.exe'
        - OriginalFileName: 'WBADMIN.EXE'
    selection_backup:
        CommandLine|contains:
            - 'start'
            - 'backup'
    selection_path:
        CommandLine|contains:
            - '\config\SAM'
            - '\config\SECURITY'
            - '\config\SYSTEM'
            - '\Windows\NTDS\NTDS.dit'
    condition: all of selection_*
falsepositives:
    - Legitimate backup operation by authorized administrators. Matches must be investigated and allowed on a case by case basis.
level: high
04

detects techniques (1)

ATT&CK techniques this enables or maps to.

05

references

External citations — patches, advisories, analysis.