SigmaHQ/rules/windows/builtin/win_global_catalog_enumeration.yml

title: Enumeration via the Global Catalog 
description: Detects enumeration of the global catalog (that can be performed using BloodHound or others AD reconnaissance tools). Adjust Treshhold according to domain width.
author: Chakib Gzenayi (@Chak092), Hosni Mribah
id: 619b020f-0fd7-4f23-87db-3f51ef837a34
date: 2020/05/11
modified: 2020/08/23
tags:
    - attack.discovery
    - attack.t1087          # an old one
    - attack.t1087.002
logsource:
    product: windows
    service: system
    definition: 'The advanced audit policy setting "Windows Filtering Platform > Filtering Platform Connection" must be configured for Success'
detection:
    selection:
        EventID: 5156
        DestinationPort:
        - 3268
        - 3269
    timeframe: 1h
    condition: selection | count() by SourceAddress > 2000
falsepositives:
    - Exclude known DCs.
level: medium
Create win_global_catalog_enumeration.yml 2020-05-11 15:40:47 +00:00			`title: Enumeration via the Global Catalog`
			`description: Detects enumeration of the global catalog (that can be performed using BloodHound or others AD reconnaissance tools). Adjust Treshhold according to domain width.`
			`author: Chakib Gzenayi (@Chak092), Hosni Mribah`
			`id: 619b020f-0fd7-4f23-87db-3f51ef837a34`
			`date: 2020/05/11`
fix modified field 2020-08-24 23:29:57 +00:00			`modified: 2020/08/23`
Create win_global_catalog_enumeration.yml 2020-05-11 15:40:47 +00:00			`tags:`
			`- attack.discovery`
att&ck tags review: windows/builtin, windows/driver_load, windows/file_event, windows/image_load, windows/other 2020-08-24 23:09:17 +00:00			`- attack.t1087 # an old one`
			`- attack.t1087.002`
Create win_global_catalog_enumeration.yml 2020-05-11 15:40:47 +00:00			`logsource:`
			`product: windows`
			`service: system`
Update additional rules to have correct logsource attributes 2020-07-13 21:02:17 +00:00			`definition: 'The advanced audit policy setting "Windows Filtering Platform > Filtering Platform Connection" must be configured for Success'`
Create win_global_catalog_enumeration.yml 2020-05-11 15:40:47 +00:00			`detection:`
			`selection:`
			`EventID: 5156`
			`DestinationPort:`
			`- 3268`
			`- 3269`
			`timeframe: 1h`
			`condition: selection \| count() by SourceAddress > 2000`
			`falsepositives:`
			`- Exclude known DCs.`
			`level: medium`