Aces High Bulletin Board

General Forums => Hardware and Software => Topic started by: AKDejaVu on December 18, 2001, 07:03:00 PM

Title: Anyone heard of a virus that blocks DNS lookups?
Post by: AKDejaVu on December 18, 2001, 07:03:00 PM

I was surfing along last night on my Win98 system when my DNS lookup stopped working.  I went over to my other Win98 system and it didn't work their either.  I tried my Win2k server (links other two to net) and DNS is working fine.

I've heard of virus (viri?) that block DNS lookup to prevent you from downloading anti-virus software... anyone know of something that may be going around?  How about a virus detection program recomendation?

AKDejaVu

Title: Anyone heard of a virus that blocks DNS lookups?
Post by: 2Late4U on December 18, 2001, 07:46:00 PM

There certainly may be a virus that can cause that issue, but Win 9x has the ability to hose over your dns lookup table all on its own.  There is a way to get it back in some cases, but its a bunch of registry editing, and that only works for some cases.  Best (only) things to do is fresh install of the blasted OS.

God I hate windows some times

Title: Anyone heard of a virus that blocks DNS lookups?
Post by: Kratzer on December 18, 2001, 09:47:00 PM

Is MSN your ISP?

I had the same thing happen today after work.  I could connect to work, and then going through the network there, connect to the internet (using my MSN connection), but I would get 'server not found' every time I tried to hit a site normally.  I finally clicked 'Detect Network Settings' in the error message, which seemed to make it actually check my network settings, and it worked fine.

Title: Anyone heard of a virus that blocks DNS lookups?
Post by: AKDejaVu on December 18, 2001, 10:17:00 PM

Its not ISP related.  My Win2K server is using the same DNS server as my Win98 systems... without any trouble.

I tried the proxy detection and didn't have any luck there.  Me thinks something is porked.

AKDejaVu

Title: Anyone heard of a virus that blocks DNS lookups?
Post by: Sancho on December 19, 2001, 10:27:00 PM

Long shot here, but try restoring url.dll from your install media.

Title: Anyone heard of a virus that blocks DNS lookups?
Post by: AKDejaVu on December 19, 2001, 11:09:00 PM

Found out what the problem was/is.  My ISP shut down their old DNS and moved it to a different IP addy.  This was discovered when 24 hours later my Win2k system lost DNS too.

Damn that pissed me off... no notice on it.

AKDejaVu

Title: Anyone heard of a virus that blocks DNS lookups?
Post by: bloom25 on December 19, 2001, 11:09:00 PM

I've heard of (and experienced) a virus that blocks access to popular anti-virus sites.  I haven't seen any viruses that prevent communication with a DNS server though...  (It's possible that they exist though.)