sigmahighHunting

HackTool - Rubeus Execution - ScriptBlock

Detects the execution of the hacktool Rubeus using specific command line flags

MITRE ATT&CK

defense-evasioncredential-accesslateral-movement

Detection Query

selection:
  ScriptBlockText|contains:
    - "asreproast "
    - "dump /service:krbtgt "
    - dump /luid:0x
    - "kerberoast "
    - "createnetonly /program:"
    - "ptt /ticket:"
    - "/impersonateuser:"
    - "renew /ticket:"
    - "asktgt /user:"
    - "harvest /interval:"
    - "s4u /user:"
    - "s4u /ticket:"
    - "hash /password:"
    - "golden /aes256:"
    - "silver /user:"
condition: selection

Author

Christian Burkard (Nextron Systems), Florian Roth (Nextron Systems)

Created

2023-04-27

Data Sources

windowsps_script

Platforms

windows

References

Tags

attack.defense-evasionattack.credential-accessattack.t1003attack.t1558.003attack.lateral-movementattack.t1550.003

Raw Content

title: HackTool - Rubeus Execution - ScriptBlock
id: 3245cd30-e015-40ff-a31d-5cadd5f377ec
related:
    - id: 7ec2c172-dceb-4c10-92c9-87c1881b7e18
      type: similar
status: test
description: Detects the execution of the hacktool Rubeus using specific command line flags
references:
    - https://blog.harmj0y.net/redteaming/from-kekeo-to-rubeus
    - https://m0chan.github.io/2019/07/31/How-To-Attack-Kerberos-101.html
    - https://github.com/GhostPack/Rubeus
author: Christian Burkard (Nextron Systems), Florian Roth (Nextron Systems)
date: 2023-04-27
tags:
    - attack.defense-evasion
    - attack.credential-access
    - attack.t1003
    - attack.t1558.003
    - attack.lateral-movement
    - attack.t1550.003
logsource:
    product: windows
    category: ps_script
    definition: 'Requirements: Script Block Logging must be enabled'
detection:
    selection:
        ScriptBlockText|contains:
            - 'asreproast '
            - 'dump /service:krbtgt '
            - 'dump /luid:0x'
            - 'kerberoast '
            - 'createnetonly /program:'
            - 'ptt /ticket:'
            - '/impersonateuser:'
            - 'renew /ticket:'
            - 'asktgt /user:'
            - 'harvest /interval:'
            - 's4u /user:'
            - 's4u /ticket:'
            - 'hash /password:'
            - 'golden /aes256:'
            - 'silver /user:'
    condition: selection
falsepositives:
    - Unlikely
level: high