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DNS

TI map IP entity to DnsEvents​

  1. See the DNS query events
DnsEvents
| where IPAddresses has "69.16.175.42"
| order by TimeGenerated asc
| project TimeGenerated, Computer, ClientIP, Name, IPAddresses

Results:

09/02/2023 15:22:34.670 MACHINEDC.contoso.org 10.1.1.5 tg1.aniview.com 69.16.175.42, 69.16.175.10

So, the DNSs were:

  • player.aniview.com
  • tg1.aniview.com
  1. Search for more activity relating to the domain and or IP
search 'aniview' and 'MACHINEDC'
| where $table !in ("")
| where TimeGenerated > ago(2d)
| order by TimeGenerated asc

Than we analyze the results, looking for what initiated the DNS query (executable, link, etc).

Further investigation can be done using the following queries:

  1. What opened the URL
DeviceNetworkEvents
| where RemoteUrl has "player.aniview.com"
| order by TimeGenerated asc
| project TimeGenerated, ActionType, DeviceName, InitiatingProcessAccountUpn, InitiatingProcessCommandLine, RemoteIP
  1. Check every procces ran at the machine
DeviceProcessEvents
| where DeviceName has "MACHINEDC"
| where TimeGenerated > ago(2d)
| order by TimeGenerated asc
| project TimeGenerated, FileName, FolderPath, ProcessCommandLine, MD5, InitiatingProcessFolderPath