smbexec.py Service Installation

calendar Nov 10, 2023 · attack.lateral_movement attack.execution attack.t1021.002 attack.t1569.002  ·
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Detects the use of smbexec.py tool by detecting a specific service installation

Sigma rule (View on GitHub)

 1title: smbexec.py Service Installation
 2id: 52a85084-6989-40c3-8f32-091e12e13f09
 3status: test
 4description: Detects the use of smbexec.py tool by detecting a specific service installation
 5references:
 6    - https://blog.ropnop.com/using-credentials-to-own-windows-boxes-part-2-psexec-and-services/
 7    - https://github.com/fortra/impacket/blob/33058eb2fde6976ea62e04bc7d6b629d64d44712/examples/smbexec.py#L286-L296
 8    - https://github.com/fortra/impacket/blob/edef71f17bc1240f9f8c957bbda98662951ac3ec/examples/smbexec.py#L60 # Old service name
 9author: Omer Faruk Celik
10date: 2018/03/20
11modified: 2023/11/09
12tags:
13    - attack.lateral_movement
14    - attack.execution
15    - attack.t1021.002
16    - attack.t1569.002
17logsource:
18    product: windows
19    service: system
20detection:
21    selection_eid:
22        Provider_Name: 'Service Control Manager'
23        EventID: 7045
24    selection_service_name:
25        ServiceName: 'BTOBTO'
26    selection_service_image:
27        ImagePath|contains:
28            - '.bat & del '
29            - '__output 2^>^&1 >'
30    condition: selection_eid and 1 of selection_service_*
31falsepositives:
32    - Unknown
33level: high

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