sigmahighHunting

All Backups Deleted Via Wbadmin.EXE

Detects the deletion of all backups or system state backups via "wbadmin.exe". This technique is used by numerous ransomware families and actors. This may only be successful on server platforms that have Windows Backup enabled.

MITRE ATT&CK

T1490

impact

Detection Query

selection_img:
  - Image|endswith: \wbadmin.exe
  - OriginalFileName: WBADMIN.EXE
selection_cli:
  CommandLine|contains|all:
    - delete
    - backup
  CommandLine|contains: keepVersions:0
condition: all of selection_*

Author

frack113, Nasreddine Bencherchali (Nextron Systems)

Created

2021-12-13

Data Sources

windowsProcess Creation Events

Platforms

windows

References

Tags

attack.impactattack.t1490

Raw Content

title: All Backups Deleted Via Wbadmin.EXE
id: 639c9081-f482-47d3-a0bd-ddee3d4ecd76
related:
    - id: 89f75308-5b1b-4390-b2d8-d6b2340efaf8
      type: derived
status: test
description: |
    Detects the deletion of all backups or system state backups via "wbadmin.exe".
    This technique is used by numerous ransomware families and actors.
    This may only be successful on server platforms that have Windows Backup enabled.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1490/T1490.md#atomic-test-5---windows---delete-volume-shadow-copies-via-wmi-with-powershell
    - https://github.com/albertzsigovits/malware-notes/blob/558898932c1579ff589290092a2c8febefc3a4c9/Ransomware/Lockbit.md
    - https://www.sentinelone.com/labs/ranzy-ransomware-better-encryption-among-new-features-of-thunderx-derivative/
    - https://www.trendmicro.com/vinfo/us/security/news/cybercrime-and-digital-threats/ransomware-report-avaddon-and-new-techniques-emerge-industrial-sector-targeted
    - https://www.trendmicro.com/content/dam/trendmicro/global/en/research/24/b/lockbit-attempts-to-stay-afloat-with-a-new-version/technical-appendix-lockbit-ng-dev-analysis.pdf
    - https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/wbadmin-delete-systemstatebackup
author: frack113, Nasreddine Bencherchali (Nextron Systems)
date: 2021-12-13
modified: 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:
            - 'delete'
            - 'backup' # Also covers "SYSTEMSTATEBACKUP"
        CommandLine|contains: 'keepVersions:0'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high