Pondus
4
(1) Can anyone explain exactly what bad thing has infected my computer?
[b]Win32/Sirefef[/b]
http://www.microsoft.com/security/portal/threat/encyclopedia/entry.aspx?Name=Win32%2FSirefef
(2) What should I do with the various files that are in the virus chest (i.e. should I simply delete them? I'm nervous about deleting them and affecting the running of my computer)?
that is what the chest (quarantine) is fore, so you have the option to restore
so there is no rush to delete from chest
avast! 8.x: Using the Virus Chest
http://www.avast.com/faq.php?article=AVKB21
Clean, quarantine or delete
http://antivirus.about.com/b/2007/03/11/clean-quarantine-or-delete.htm