SigmaHQ/rules/windows/sysmon/sysmon_susp_office_kerberos_dll_load.yml
2020-02-25 09:23:52 -05:00

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YAML

title: Active Directory Kerberos DLL Loaded Via Office Applications
id: 7417e29e-c2e7-4cf6-a2e8-767228c64837
status: experimental
description: Detects Kerberos DLL being loaded by an Office Product
references:
- https://medium.com/threatpunter/detecting-adversary-tradecraft-with-image-load-event-logging-and-eql-8de93338c16
author: Antonlovesdnb
date: 2020/02/19
tags:
- attack.initial_access
- attack.t1193
logsource:
product: windows
service: sysmon
detection:
selection:
EventID: 7
Image:
- '*\winword.exe*'
- '*\powerpnt.exe*'
- '*\excel.exe*'
- '*\outlook.exe*'
ImageLoaded:
- '*\kerberos.dll*'
condition: selection
falsepositives:
- Alerts on legitimate macro usage as well, will need to filter as appropriate
level: high