CommonSecurityLog 數據表的查詢

Palo Alto 收集器計算機使用量

此查詢會根據從 Palo Alto 設備接收的事件數量，顯示所有收集器機器主機名的遞減清單。

CommonSecurityLog
// Quering on the past 7 days
| where TimeGenerated > ago(7d)
// Quering only on incoming events from a Palo Alto appliance
| where DeviceProduct has 'PAN-OS'
| where DeviceVendor =~ 'Palo Alto Networks'
// Find the the collector machine with the highest usage
| summarize Count=count() by Computer
// Sort in a descending order- Most used Collector hostname comes first
| sort by Count desc

Cisco ASA 事件類型使用方式

此查詢會顯示每個 DeviceEventClassID 所擷取的事件數量遞減清單

CommonSecurityLog 
// Quering on the past 7 days
| where TimeGenerated > ago(7d)
// Only filter on Cisco ASA events
| where DeviceVendor == "Cisco" and DeviceProduct == "ASA"
// group events by their DeviceEventClassID value, which represents the Cisco message id
| summarize count_events=count() by DeviceEventClassID
// Sort in a descending order- most used DeviceEventClassID comes first
| sort by count_events desc

裝置事件磁碟區統計數據

傳送大部分事件的裝置。

CommonSecurityLog
| top-nested 15 of DeviceVendor by Vendor=count(),
  top-nested 5 of DeviceProduct by Product=count(),
  top-nested 5 of DeviceVersion by Version=count()