Question

How to tell what process / app causes outgoing login tries on 2003 server?

Asked by: Kaptain1

Hey Experts!

Here's a mystery...

I got a W2003 Ent. server that's running a few apps (hotel booking system from web), a backup software, and a few other databases that are used on LAN.

Our web-master emailed me today saying that our server (lists our IP and server's computer name from his firewall logs) repeatedly tries to log-into his server (probably web or email, not sure) every day at around 7:20am and after failing to do so, stops the log-ins after about 20 minutes of trying. And he's wondering whether something's wrong with settings or if someone's trying to hack his server.

I looked all over at the server and can't find any programs that may be able to log in to his server for any reason.

I want to install some kind of an application that will tell me what service or what process / program is sending out traffic to his server.

Is there any other way to handle this?

Please advise.

Thanks in advance!

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Asked On
2009-03-11 at 21:56:15ID24222645
Topics

Networking Hardware Firewalls

,

Network Software Firewalls

,

Web Servers

Participating Experts
2
Points
500
Comments
3

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Answers

 

by: slyongPosted on 2009-03-12 at 00:18:24ID: 23865546

Hi,

You can open up a command prompt and use the command "netstat -ano"... otherwise, you can use two-way firewall (for example zonealarm) to see which application is trying to go out.

 

by: NivleshPosted on 2009-03-12 at 02:07:50ID: 23866013

If this is a regular thing at basically around 7:20am then there must be a scheduled program on your server.

Use the following steps to try to find it.
1. Look through your scheduled tasks to see if there is anything
2. go to the command print and run the command "at" (exclude the quotes). This is same/similiar to 1. but at times I have seen that there are things shown by at that is not shown in scheduled tasks
3. Run MSCONFIG from run and check under services and startup to see if there are any programs that you dont know about. if there are then try unticking them then rebooting your server to flush them out of memory
4. Go to www.sysinternals.com and download process explorer. You will be able to use this to see the current processes that are running on your system. For each process check the file that is being used to run it to ensure that it is genuine and not some program that you dont know about.
5. Check to ensure that you dont have any programs installed that try sending reports to some address at that specified time
6. You could write a batch script that starts around 6:30am and runs in a loop and does a netstat -o into a file till around after 8am. Then you can look through this file to see if you can find that connection. this might or might not capture the connections because the connection could start and finish within a few seconds.
7. Also have a look at your eventviewer. There might be errors logged in it .. assuming its a genuine program that is trying to connect out.

Hope this helps

 

by: Kaptain1Posted on 2009-03-23 at 16:56:12ID: 23963435

Thanks all,
it was probably a button that got stuck or something stupid like that :/

20120131-EE-VQP-002

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