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terminal server attack from specific IP addresses

Posted on 2013-01-23
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Last Modified: 2013-01-25
We have a Sonicwall for firewall and win 2k3 and win 2k8 terminal servers.

Someone is trying to access our terminal servers  using the "admin" user name along with other user names.  So far access has been denied but I know the specific IP addresses that are trying to attack us....Is there anything I can do to block these particular IP Addresses?

Also, the ports that are being used to try to gain access are different every time.
Any and all advice/help would be greatly appreciated!
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Question by:Lamrski
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als315 earned 500 total points
ID: 38810939
You can add blocking rule for this IP address. Sample you can find here:
https://www.fuzeqna.com/sonicwallkb/consumer/kbdetail.asp?kbid=5973

You can also determine ISP, where this address is:
http://whois.domaintools.com/
and write a letter to ISP's contact address, descrbing situation.
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