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cllee's avatar
cllee
Brass Contributor
Jun 19, 2020

"O365 Suite EX" and "Office365 Shell WCSS-Client" Compromised

Hi,

 

I noticed the following Sign-in events originating from Nigeria, which is not the user location.

Seems like something is compromised.

 

Can I know what is the "O365 Suite UX" and "Office365 Shell WCSS-Client" about?

 

Thanks.

 

 

  • Unless the user connected via some sort of VPN solution, I'd wager his account has been compromised. Those events correspond to browser logins to the O365 portal/landing page.

    • cllee's avatar
      cllee
      Brass Contributor

      VasilMichev 

      Is there anyway to trace or run audit for whatever action or activities that has been run by that IP address? Thanks.

      • Not directly, but you can export the Unified audit log events and filter them against this IP. If you are using Cloud App Security, you can do it directly in the UI there.

         

        Not all events generate IP address information though.

  • Arash0110's avatar
    Arash0110
    Copper Contributor

    cllee, that account has been compromised, for sure, no doubt. We had the same occurrences, and had an user account which didn't have MFA enabled , hacked. And the hacking was done via phishing e-mail. 

    • Potter4U's avatar
      Potter4U
      Copper Contributor

      waseem this doesn’t give any proof about the phishing email or says anything about compromised. This just gives definition of the Office365 shell; I believe no one understands the meaning of this alert.

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