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pySigma Versions
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Newest: 1.3.3
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Active Rule
Suspicious Kerberos Ticket Request via CLI
Target Profile
Splunk
Splunk through pysigma-backend-splunk.
Format Mode
Default
Default pySigma output mode for this backend.
Conversion Output
Suspicious Kerberos Ticket Request via CLI
Using Splunk · Default · pySigma 1.3.3
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion1.3.3
title: Suspicious Kerberos Ticket Request via CLI
id: caa9a802-8bd8-4b9e-a5cd-4d6221670219
related:
- id: a861d835-af37-4930-bcd6-5b178bfb54df
type: similar
status: experimental
description: |
Detects suspicious Kerberos ticket requests via command line using System.IdentityModel.Tokens.KerberosRequestorSecurityToken class.
Threat actors may use command line interfaces to request Kerberos tickets for service accounts in order to
perform offline password cracking attacks commonly known as Kerberoasting or other Kerberos ticket abuse
techniques like silver ticket attacks.
references:
- https://www.huntress.com/blog/gootloader-threat-detection-woff2-obfuscation
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1558.003/T1558.003.md#atomic-test-4---request-a-single-ticket-via-powershell
- https://learn.microsoft.com/en-us/dotnet/api/system.identitymodel.tokens.kerberosrequestorsecuritytoken?view=netframework-4.8.1
author: Swachchhanda Shrawan Poudel (Nextron Systems)
date: 2025-11-18
tags:
- attack.credential-access
- attack.t1558.003
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith:
- '\powershell.exe'
- '\pwsh.exe'
- OriginalFileName:
- 'powershell.exe'
- 'pwsh.dll'
selection_cli:
CommandLine|contains|all:
- 'System.IdentityModel.Tokens.KerberosRequestorSecurityToken'
- '.GetRequest()'
condition: all of selection_*
falsepositives:
- Legitimate command line usage by administrators or security tools.
level: high
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/process_creation/proc_creation_win_powershell_kerberos_kerberos_ticket_request_via_cli.yml