Jump to content


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.

Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.


2 networks. Connect to either but not both.

  • Please log in to reply
1 reply to this topic

#1 gman49


  • Members
  • 6 posts
  • Local time:04:19 PM

Posted 14 March 2009 - 11:20 AM

Hi all

Recently removed various malware from 3 LAN PCs. They did not exhibit this behavior previously. No 2 had the same or even similar malware. Each PC has 2 network interface cards. One connects to a router in gateway mode and is DHCP enabled, the second connects to a LAN fileserver running Windows Server 2003 with a static IP. There are 10 PCs on the LAN, all running XP Pro. 7 still work fine, however the 3 that had malware removed will only access the Internet when the LAN connection is disabled. I ran Wireshark and saw that when the LAN is enabled. the DNS requests from those three are broadcast on the subnet as instead of the DNS server IP. When the LAN is disabled, they correctly request name resolution from the DNS server.

Any ideas?


BC AdBot (Login to Remove)


#2 Desion


  • Members
  • 135 posts
  • Gender:Male
  • Local time:12:19 PM

Posted 19 March 2009 - 07:18 AM

I would just do a System Restore before any changes were made or viruses occured.
Interesting Links:
Softpedia - Online downloads encyclopedia
W3Schools - Website Programming Tutorials
PC World - Everything about technology
Wikipedia - Online Encyclopedia
Photobucket - Free Image Hosting

"I don't support network bridges, they support me."

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users