Does anyone know much about "Exploit.HTML.MHTRedir-8"?

Hi all!

We have a WinNT4 server that is running DNS for our WAN.
Lately, it seems that our users who are browsing are being redirected 
elsewhere.
A preliminary check of the system using Norton AV 2003 (fully-updated, of 
course) revealed no infections, but a scan with ClamAV (20050725, also 
fully-updated) reported the presence of "Exploit.HTML.MHTRedir-8" infection 
in our DNS server's pagefile.sys.

A Google search about "Exploit.HTML.MHTRedir-8" showed only 4 links, none 
of which said anything much about the infection, except that it was first 
reported on July 26, 2005. It must indeed be a new virus/trojan.

Does anyone else have more useful info about "Exploit.HTML.MHTRedir-8"? As 
in what it really does?

Thanks in advance!