Forum Discussion

Tali Ash's avatar
Tali Ash
Former Employee
Mar 25, 2019

New! Extending user based exclusions for alerts

You asked, we listened!

 

In an effort to improve and enhance your experience using Azure ATP, you can now set alert exclusions that include users, along with other entities such as IP addresses, subnets and computers.

 

For example, for the “Remote code execution attempt” detection, you can set an exclusion that is based on either a list of machines or an administrative account that is privileged to perform such activities. 


User based exclusions were added to the following alerts:

  • Suspected DCSync attack (replication of directory services)
  • User and Group membership reconnaissance (SAMR)
  • Suspicious service creation
  • User and IP Address Reconnaissance (SMB)
  • Remote code execution attempt

 

Stay tuned for additional alerts and updates.  As always, your feedback is welcome. 

4 Replies

  • DanPan's avatar
    DanPan
    Copper Contributor

    Hi Tali Ash

     

    We have a proxy service running, with service account svc-proxy, on server DTxxxxxxxx02

    These activities generates “User and IP address reconnaissance (SMB)” alerts.

    We do not want future alerts.


    We added the svc-proxy to user exclusion “User and IP address reconnaissance (SMB)”

    After we closed the alert, we still get alerts "An actor on DTxxxxxxxx02 enumerated SMB sessions on..."
    In the evidence details it shows An actor = svc-proxy

    Why do we still get these alerts after we excluded the user?
    It seems the user only based exclusion for alerts is not working...

    Remark: if we exclude both the user "svc-proxy" and computer "DTxxxxxxxx02" it works fine, no more alerts. But we don't want to exclude the computer too.

    • EliOfek's avatar
      EliOfek
      Icon for Microsoft rankMicrosoft
      When looking at the evidence timestamps (Jan 5) , did they happen after you excluded by the user ?
      • DanPan's avatar
        DanPan
        Copper Contributor
        The timestamp is 1st May.
        Yes, they happen after I excluded the user and closed the previous alert.
        The content of the new alert changed from "svc-proxy on" to "An actor on".

Resources