mirror of
https://github.com/valitydev/SigmaHQ.git
synced 2024-11-08 18:23:52 +00:00
22 lines
607 B
YAML
22 lines
607 B
YAML
title: Suspicious Kerberos RC4 Ticket Encryption
|
|
status: experimental
|
|
references:
|
|
- https://adsecurity.org/?p=3458
|
|
description: Detects logons using RC4 encryption type
|
|
logsource:
|
|
product: windows
|
|
service: security
|
|
detection:
|
|
selection:
|
|
EventID: 4769
|
|
TicketOptions: '0x40810000'
|
|
TicketEncryption: '0x17'
|
|
reduction:
|
|
- ServiceName: '$*'
|
|
- Type: 'Success Audit'
|
|
condition: selection and not reduction
|
|
falsepositives:
|
|
- Service accounts used on legacy systems (e.g. NetApp)
|
|
- Windows Domains with DFL 2003 and legacy systems
|
|
level: medium
|