How to remove Win32/Virut!hhtml

It's a Virut and depending how long the system has been infected my suggestion would be to just reformat the system and start again.

If it's really Virut, it's a buggy file infector in which antivirus and other scanners can't cure the file properly so the infected files ended up getting deleted or corrupted and the user would have to reinstall every infected files or programs.

You can also try DrWebCureIt, it's a good scanner for this but like I've said you would have to reinstall those files that have been corrupted or deleted.
http://www.freedrweb.com/cureit/?lng=en

Try to use Kaspersky Rescue CD .... download latest updates from Kasper website or get the distribution folder from anyone of ur friends who has kaspersky Internet security or antivirus installed.

When you download the updates, copy them to Mem stick insert the mem stick and after burning a bootable Kaspersky rescue disk ... you will restart and find the Mem stick shown in my computer..

You will be able then to update Kasper's definitions from the mem stick and continue a full computer scan.

http://www.softpedia.com/get/Antivirus/Kaspersky-Rescue-Disk.shtml
http://support.kaspersky.com/kav6mp2/rescue

Give the AVG removal tool a go

http://www.avg.com/virus-removal.ndi-67762

Virut infects, all executable files, .scr files, .rar or .zip archives, and the new variants infects htm and html files.
Depending on how long virut has been on the system, it is really a waste of time cleaning it if it's been in the system for a while and many files have been infected.
Virus infected files can not be cleaned.
I hate to say but a reformat is the solution when virut is involved.

> Virus infected files can not be cleaned.

Well, at least Microsoft Windows OneCare worked for me. It CLEANED all my exe and scr files, without problems. Well, I've tried cleaning from clean system. Those virtut cleaner programs does not work for these new variants.

I'm not fan of Microsoft AV products, but OneCare worked for this, and that was really important for me.

Today I ran tests with Norton AntiVirus, from clean system. And it seems it would clean files just fine (you MUST do it from clean system! Running inside infected one would give funny results. Like Norton 'clears' all files and would tell that everything is fine... But all files are infected anyway!)

Cleaning with Norton or OneCare does not return files to exact state before infection, and it seems that infection+cleaning will left some 'signatures' that would trigger some other AV programs.
I'm not sure if you can call these as 'false-positive', but my system seems to be running just fine, without problems. (Now I have also outgoing firewall, so I can see if there is unknown traffic from my system).