Citrix Analytics for Security

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不寻常的桌面名称

当用户尝试启动不正常的桌面时,就会发生这种情况。

详细信息

数据源:应用程序和桌面(Workspace 应用程序)

CAS 查询

Event-Type = "Session.Logon" AND Session-Launch-Type = "desktop" AND App-Name ~ "<Desktop Name>"
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Sigma 签名

author: Citrix
date: 2023/01/31
description: Unusual desktop names
detection:
  condition: selection1 and selection2 and not filter_null and filter_app_name
  filter_app_name:
  - app_name|contains: '<App Name>'
  filter_null:
  - app_name: null
  selection1:
  - occurrence_event_type: Citrix.EventMonitor.AppStart
  selection2:
  - launch_type: 'desktop'
logsource:
  product: citrixanalytics
  service: security
title: Unusual desktop names
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监视特定进程

当用户启动监视列表中的已发布应用程序时,就会发生这种情况。其目的可能是监视特定已发布应用程序的使用情况。

详细信息

数据源:应用程序和桌面 (Session Recording)

CAS 查询

Event-Type = "Citrix.EventMonitor.AppStart" AND App-Name IN ("<App-Name-1>", "<App-Name-2>")
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Sigma 签名

author: Citrix
date: 2023/01/31
description: Monitor specific process
detection:
  condition: selection and not filter_null and filter_app_name
  filter_app_name:
  - app_name: ['<App-Name1>', '<App-Name2>']
  filter_null:
  - app_name: null
  selection:
  - occurrence_event_type: Citrix.EventMonitor.AppStart
logsource:
  product: citrixanalytics
  service: security
title: Monitor specific process
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未经授权的虚拟应用程序

当用户访问未经授权的虚拟应用程序时,就会发生这种情况。

详细信息

数据源:应用程序和桌面(Workspace 应用程序)

CAS 查询

Event-Type = "App.Start" AND App-Name IN ("<App-Name1>", "<App-Name2>")
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Sigma 签名

date: 2023/01/31
description: Unauthorized virtual apps
detection:
  condition: selection and not filter_null and filter_app_name
  filter_app_name:
  - app_name: ['<App-Name1>', '<App-Name2>']
  filter_null:
  - app_name: null
  selection:
  - occurrence_event_type: App.Start
logsource:
  product: citrixanalytics
  service: security
title: Unauthorized virtual apps
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