Solved

cracker using KSecDD

Posted on 2000-05-18
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Last Modified: 2013-12-28
We have 2 NT4 servers with public IP addresses and no firewall.
Someone is trying to crack accounts on these servers. We can see lots of failure messages in the security event logs. They are always from a different domain, different username, different password but with the same logon type = 3 (Network) and logon process = KSecDD (Security Device Driver). What does it mean ? How could we stop these cracking attempts ?

We plan to install a firewall but we would like to find a solution before it.
TIA for any information.
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Question by:lde
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9 Comments
 
LVL 6

Accepted Solution

by:
setiawan earned 150 total points
ID: 2820654
Hi Ide,

becareful, not to share some folder on your server with full access if your server published to internet.

Before you setting your firewall
I suggest you install the latest service pack for your NT Server from MS site.

hope this helps.

  danny
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LVL 86

Expert Comment

by:jkr
ID: 2820940
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Expert Comment

by:vbadier
ID: 2824324
Hi

What about your server? Domain controler or stand-alone?

Regarding your errors, they might be domain controler, because , as i know, logon type 2 and Logon process = User32 are for local security authentification, but the process KsecDD and the Logon type 3 are used for domain authentification.

So, actually, in my opinion, the cracker is stoped by the normal logon athentification.

Sorry not able to help you more for the moment.

Regard's
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Expert Comment

by:vbadier
ID: 2824331
Sorry, What you could do is enable network monitoring and store trame. Then when reviewing the trame, you could know more about who is attempting to go in (like his IP adress). Then you can lock this particular ip adress.

Hope this help.
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Expert Comment

by:vbadier
ID: 2824370
Sorry, What you could do is enable network monitoring and store trame. Then when reviewing the trame, you could know more about who is attempting to go in (like his IP adress). Then you can lock this particular ip adress.

Hope this help.
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Author Comment

by:lde
ID: 2843213
Thank you all.
It looks like we had forgotten shared folders on the servers. The cracker used a software to try logins on these shared folders.
Now, we have unshared and it's over.
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Author Comment

by:lde
ID: 2843220
Comment accepted as answer
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Author Comment

by:lde
ID: 2843221
Thanks to setiawan.
We had forgotten shared folders.
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LVL 6

Expert Comment

by:setiawan
ID: 2843258
You're welcome
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