I have a Windows 7 Pro workstation within a domain that is getting a Windows Event 56 TermDD.
The Terminal Server security layer detected an error in the protocol stream and has disconnected the client. Client (IP address).
I just noticed this and I am seeing at least 8 different public IP addresses listed. Am I getting hacked? Remote Desktop is turned on for this machine but port forwarding is not set up for this machine in the firewall.
Is this a false alarm?
No, this is not a false alarm. If you are getting that event in your system from multiple different external IP addresses, then it is a strong probability somehow someone is trying to access your system.
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