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25 lines
684 B
YAML
25 lines
684 B
YAML
title: Kerberos Network Traffic RC4 Ticket Encryption
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id: 503fe26e-b5f2-4944-a126-eab405cc06e5
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status: experimental
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date: 2020/02/12
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description: Detects kerberos TGS request using RC4 encryption which may be indicative of kerberoasting
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references:
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- https://adsecurity.org/?p=3458
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tags:
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- attack.credential_access
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- attack.t1208 # an old one
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- attack.t1558.003
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logsource:
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product: zeek
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service: kerberos
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detection:
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selection:
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request_type: 'TGS'
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cipher: 'rc4-hmac'
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computer_acct:
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service|startswith: '$'
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condition: selection and not computer_acct
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falsepositives:
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- normal enterprise SPN requests activity
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level: medium
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