Sigma Rule Library

Potential SPN Enumeration Via Setspn.EXE

Detects service principal name (SPN) enumeration used for Kerberoasting

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Detection logic

selection_pe

- Image|endswith: \setspn.exe
- OriginalFileName: setspn.exe
- Description|contains|all:
    - Query or reset the computer
    - SPN attribute

selection_cli

CommandLine|contains:
  - " -q "
  - " /q "

Condition

all of selection_*

Raw YAML

title: Potential SPN Enumeration Via Setspn.EXE
id: 1eeed653-dbc8-4187-ad0c-eeebb20e6599
status: test
description: Detects service principal name (SPN) enumeration used for Kerberoasting
references:
    - https://web.archive.org/web/20200329173843/https://p16.praetorian.com/blog/how-to-use-kerberoasting-t1208-for-privilege-escalation
    - https://www.praetorian.com/blog/how-to-use-kerberoasting-t1208-for-privilege-escalation/?edition=2019
author: Markus Neis, keepwatch
date: 2018-11-14
modified: 2023-10-23
tags:
    - attack.credential-access
    - attack.t1558.003
logsource:
    category: process_creation
    product: windows
detection:
    selection_pe:
        - Image|endswith: '\setspn.exe'
        - OriginalFileName: 'setspn.exe'
        - Description|contains|all:
              - 'Query or reset the computer'
              - 'SPN attribute'
    selection_cli:
        CommandLine|contains:
            - ' -q '
            - ' /q '
    condition: all of selection_*
falsepositives:
    - Administration activity
level: medium

False positives

  • Administration activity

References

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