pc backup file is loaded with the w32.alcra.b virus

I have encoutered in all hosts a file with 851,7KB with many names, all of these files are the same file inside a WinRar file named Video.exe. The file is a Troian Horse/Backdoor.
The video.exe obstruct the load of taskmanager of Windows making impossible stoping the task and use the Limewire how a downloader of porn arquives in the "Documents and Settings/complete" folder. If you exit Limewire he load automatic and the download of porn arquives continue.
The proliferation of this file indicates a big number of machines with infection.

yea i know what u mean all the adobe 3d files are virus on limewire they really need to do something on this

i was just trying to get good files for everyone
and they are infeasting the regular adobe files to i seen some on there to

Have you ever heard of Overpeer? If not, google it. I'm sure there's similar groups sponsored to specially pollute gnutella with junk & viruses. Since they use the same technique as the autospamming, autogenerated spam results It is no doubt similar groups of people. Advice is to ignore files less than 1 (1,000 KB) or even 2 MB (2,000 KB) unless necessary. And re: porn; depending on which gnutella program you're using, filter out these words Direct instructions to eliminate porn from results such as using keyword or result filters.

Whatever I search for I get lots of files answering my search query, all these have 851.7kb as file size and everyone carries a virus and no other file content.
Is there a way of filtering these pests out so I can stop wasting my time and get on with real files
I am new to the forum so if this has been discussed before and I am sure it has, firgive me for bringing it up again
Cheers

Click on the size column header to sort all by size, then it is easy to avoid the block.