Decompression Bomb?

Viruses and worms
1

I just ran Avast and it picked up a decompression bomb:

C:\Users\Joey\AppData\Local\Mozilla\Firefox\Profiles\x4I02kkh.default\Cache\DB780835d01\DB780835d01

I JUST reinstalled Vista and put all my files back onto it after a Trojan Virus got me, and I really hope I don’t have to do it again and/or have to lose all my files. I just downloaded avast! 4 Home Edition Free Download.

So what do I do with it?

(I’m not very good with computers, at least compared to all of you, so you’ll have to explain it well. :-\ )

2

A decompression bomb is just a file that uses a high degree of compression
There is a description here http://forum.avast.com/index.php?topic=8943

3

Well, is it bad, and if it is, do I need to get rid of it, and if so, how?

Thanks for the reply though.

4

No, under normal circumstances I would do nothing - Files that can’t be scanned are just that, not an indication they are suspicious/infected, just unable to be scanned..

In this case however, since this relates to the firefox cache and isn’t a critical file, it may just be that your cache has grown very large, periodically clear it out, don’t let it grow to big.