File Recovery From Backup Via Wbadmin.EXE — Sigma Rule

Rule metadata and linked tags

Author: Nasreddine Bencherchali (Nextron Systems), frack113. Source status: test; severity: medium. Source dates: 2024-05-10 / not supplied.

{
  "category": "process_creation",
  "product": "windows"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 0f90c701c4dda5b6b434243b7fa92df2f7af666e469e51528c18c47371918306

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: File Recovery From Backup Via Wbadmin.EXE
id: 6fe4aa1e-0531-4510-8be2-782154b73b48
related:
    - id: 84972c80-251c-4c3a-9079-4f00aad93938
      type: derived
status: test
description: |
    Detects the recovery of files from backups via "wbadmin.exe".
    Attackers can restore sensitive files such as NTDS.DIT or Registry Hives from backups in order to potentially extract credentials.
references:
    - https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/wbadmin-start-recovery
    - https://lolbas-project.github.io/lolbas/Binaries/Wbadmin/
author: Nasreddine Bencherchali (Nextron Systems), frack113
date: 2024-05-10
tags:
    - attack.impact
    - attack.t1490
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\wbadmin.exe'
        - OriginalFileName: 'WBADMIN.EXE'
    selection_cli:
        CommandLine|contains|all:
            - ' recovery'
            - 'recoveryTarget'
            - 'itemtype:File'
    condition: all of selection_*
falsepositives:
    - Unknown
level: medium

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/wbadmin-start-recovery
• https://lolbas-project.github.io/lolbas/Binaries/Wbadmin/