Potential SPN Enumeration Via Setspn.EXE — Sigma Rule

Rule metadata and linked tags

Author: Markus Neis, keepwatch. Source status: test; severity: medium. Source dates: 2018-11-14 / 2023-10-23.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 3e56eea5faadbf5b7ae65a804609fb7b99da9f727f625e4421544e636267847f

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: 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

Original YAML and metadata in JSON

False positives

• Administration activity

Source 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