Pinging virus

[Hanson]

Yesterday morning, we weren't able to hit the internet. Due to problems getting ahold of our ISP, we assumed it was on their side.

When I looked at our firewall logs, it appeared that ping activity was taking more bandwidth than http and smtp activity combined. So I blocked ping ports going in and out. This brought us back up.

I am sure that someone has a virus that is broadcasting and slowing down the network. Does anyone know which virus floods the network with pings?

 

[theboyhope]

I seem to remember one called Ping.A, but I'm sure there are more.

 

[Antionette]

The W32.Nachi.worm is causing the ping problems. All your machines must be patched with MS03-026 anr run the latest versions of your antivirus. Please check for the host machine (sending the pings)and patch that one first. When ALL your machines are patched the problem will go away.

http://vil.nai.com/vil/content/v_100559.htm

refers.