Alert when a XLL was created/read/deleted

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Alert when a XLL was created/read/deleted

L3 Networker

Hello dear community, 

what is the best way to setup a query for bioc to get an alert. Maybe correlation rule is a better place for my project?

It should alert, when a XLL File was written or read or deleted. 

Should I setup a specific file location in my query or is this not neccasary and I can take any file location? I ask because of the ressources on the client. 

 

BR

 

Rob

1 REPLY 1

L5 Sessionator

Hi @RFeyertag , certainly you can do that.

 

Try playing around with this query:
dataset = xdr_data
| filter agent_hostname = "bbarmanroyWinDemo"
|filter event_type = FILE and (event_sub_type = FILE_CREATE_NEW or event_sub_type = FILE_WRITE or event_sub_type = ENUM.FILE_REMOVE or event_sub_type = ENUM.FILE_RENAME )
|filter action_file_extension in ("txt") and action_file_path in("C:\users\IEUser\Desktop\*","C:\BGinfo\*")

bbarmanroy_0-1659928819868.png

 

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