Posted 08 August 2004 - 03:36 PM
I am trying to fix a Windows 2000 computer that has been infected with multiple Trojans and Viruses.
I think some of the viruses that have infected this computer include
W32/plexus.b@mm, W32/Dumaru-AK, miscellaneous trojans related to these viruses and/or some variant.
These viruses changed the Hosts file on the computer that I'm trying to fix. I can only access websites by using IP addresses.
Through the use of a second computer, I was able to finally download a new dat for McAfee plus I also used their Stinger program. I think all of the recognizable viruses and trojans have been found and removed, but the browser still can't access the web through standard domain names.
I read the tutorial on DNS at this website and tried playing around with the Hosts file and priorities in the registry. I've even tried specifying the DNS server in the ISP settings, but none of this works. Note that adding IPs to the Hosts file does work. Also note that the bad entries have been removed and that 127.0.0.1 localhost has been added to the first line.
Could a virus do some other damage that would prevent me from accessing a DNS server? What can be done to diagnose this problem and to fix it?