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68 lines
2.2 KiB
YAML
68 lines
2.2 KiB
YAML
name: Mimikatz PassTheTicket CommandLine Parameters
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id: 13bbd574-83ac-11ec-99d4-acde48001122
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version: 1
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date: '2022-02-01'
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author: Mauricio Velazco, Splunk
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status: production
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type: TTP
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description: The following analytic looks for the use of Mimikatz command line parameters
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leveraged to execute pass the ticket attacks. Red teams and adversaries alike may
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use the pass the ticket technique using stolen Kerberos tickets to move laterally
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within an environment, bypassing normal system access controls. Defenders should
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be aware that adversaries may customize the source code of Mimikatz and modify the
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command line parameters. This would effectively bypass this analytic.
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data_source:
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- Sysmon Event ID 1
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search:
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selection1:
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CommandLine:
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- '*sekurlsa::tickets /export*'
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- '*kerberos::ptt*'
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condition: (selection1)
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how_to_implement: To successfully implement this search, you need to be ingesting
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logs with the process name, parent process, and command-line executions from your
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endpoints. If you are using Sysmon, you must have at least version 6.0.4 of the
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Sysmon TA.
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known_false_positives: Although highly unlikely, legitimate applications may use the
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same command line parameters as Mimikatz.
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references:
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- https://github.com/gentilkiwi/mimikatz
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- https://attack.mitre.org/techniques/T1550/003/
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tags:
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analytic_story:
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- Active Directory Kerberos Attacks
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- CISA AA22-320A
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asset_type: endpoint
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confidence: 60
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impact: 60
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message: Mimikatz command line parameters for pass the ticket attacks were used
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on $dest$
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mitre_attack_id:
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- T1550
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- T1550.003
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observable:
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- name: user
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type: User
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role:
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- Victim
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- name: dest
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type: Hostname
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role:
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- Victim
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- name: parent_process_name
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type: Process
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role:
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- Parent Process
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product:
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- Splunk Enterprise
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- Splunk Enterprise Security
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- Splunk Cloud
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risk_score: 36
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security_domain: endpoint
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tests:
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- name: True Positive Test
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attack_data:
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- data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1550.003/mimikatz/windows-sysmon.log
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source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
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sourcetype: xmlwineventlog
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