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Potential Kerberos Attack via Bifrost
editPotential Kerberos Attack via Bifrost
editIdentifies use of Bifrost, a known macOS Kerberos pentesting tool, which can be used to dump cached Kerberos tickets or attempt unauthorized authentication techniques such as pass-the-ticket/hash and kerberoasting.
Rule type: query
Rule indices:
- logs-endpoint.events.*
Severity: high
Risk score: 73
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Domain: Endpoint
- OS: macOS
- Use Case: Threat Detection
- Tactic: Credential Access
- Tactic: Lateral Movement
- Data Source: Elastic Defend
Version: 105
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editevent.category:process and host.os.type:macos and event.type:start and
process.args:("-action" and ("-kerberoast" or askhash or asktgs or asktgt or s4u or ("-ticket" and ptt) or (dump and (tickets or keytab))))
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Lateral Movement
- ID: TA0008
- Reference URL: https://attack.mitre.org/tactics/TA0008/
-
Technique:
- Name: Use Alternate Authentication Material
- ID: T1550
- Reference URL: https://attack.mitre.org/techniques/T1550/
-
Sub-technique:
- Name: Pass the Ticket
- ID: T1550.003
- Reference URL: https://attack.mitre.org/techniques/T1550/003/
-
Tactic:
- Name: Credential Access
- ID: TA0006
- Reference URL: https://attack.mitre.org/tactics/TA0006/
-
Technique:
- Name: Steal or Forge Kerberos Tickets
- ID: T1558
- Reference URL: https://attack.mitre.org/techniques/T1558/
-
Sub-technique:
- Name: Kerberoasting
- ID: T1558.003
- Reference URL: https://attack.mitre.org/techniques/T1558/003/