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Linux automated SMB connection attempts: has my server been compromised

Çağlar Arlı      -    8 Views

Linux automated SMB connection attempts: has my server been compromised

We have a Linux server running CentOS7. A few days ago we found out that it has started continuously attempting to connect to a Windows server share via port 445 using a certain user's AD credentials. Every 2-3 seconds there is a SYN_SENT request.

I am trying to find out what process is doing this, but netstat and ss don't show any PID info for this. What can I do to find out the cause of this