Unable to scan

system · 2007-10-11T14:45:00.000Z

Hi,

I’ve had a look through all the unable to scan posts, but i just wanted to double check again. Every time I scan I get 15 files stating ‘unable to scan…archive is corrupt’. The programs causing the problem are:

Mozilla Firefox (GZIP-Archive is corrupt),

Several temp. internet files (I’m not worried about those, I’ll just delete them),

Several Wise00xx.bin(xx=11 or 10) files in the system volume information folder, all under the same restore folder (Installation-Archive is corrupt),

A file called msi.dll, also under the same restore folder as the above files (CAB-Archive is corrupt),

Several Wise00xx.bin files under D:\Tools\Home Cinema\MusicMatch\x\TDM\TDMInstall.exe. (x=Language, eg:Deu, Ita etc) (Installation-Archive is corrupt),

And another msi.dll under the windows xp updates folder (CAB-Archive is corrupt).

I can give the complete file paths if necessary. Could anyone tell me whether I have any reason to worry about this? Should I put the files in the chest, or delete them? All of the files are corrupt!

El

Lisandro · 2007-10-11T15:09:20.000Z

Corrupt archive files are, generally, due to impossibility of avast to unpack the files and scan them. This could be due to a lot of reasons: unsupported pack or package method, a real corrupt archive, etc.
I won’t worry that much about them. You don’t have to delete them, if you want, can send to Chest and, from there, send to Alwil to analysis.

system · 2007-10-11T21:22:24.000Z

If files can be packed using an unsupported method, or password protected, so that avast can’t scan them, don’t viruses do the same? So that antivirus programs can’t scan them? Because then there wouldn’t be much point in an antivirus program!

Concerning temporary internet files, when one goes to internet options via the extras menu in the browser, and chooses to delete temporary internet files, are all temporary internet files actually deleted, or can it happen that some are left over?

bob3160 · 2007-10-11T22:05:25.000Z

El post:3:

If files can be packed using an unsupported method, or password protected, so that avast can’t scan them, don’t viruses do the same? So that antivirus programs can’t scan them? Because then there wouldn’t be much point in an antivirus program!

A packed file regardless of the packer used can’t hurt your system. It needs to be unpacked and then run before it can do any damage.
Before it’s run, it’s intercepted by your anti virus program. At that point, you’ll be told if the file is infected.

when one goes to internet options via the extras menu in the browser, and chooses to delete temporary internet files, are [i]all[/i] temporary internet files actually deleted, or can it happen that some are left over?

Nothing in life is certain except death and taxes. ;D Welcome to the forum.

DavidR · 2007-10-11T22:23:33.000Z

any zipped/archive file, password protected or otherwise has to be unpacked (this would create new files which depending on the file type would be scanned) and any executable file run (again avast intercepts the execution and the file is scanned, if infected avast alerts and doesn’t allow the file to execute). So yes there is every point in an AV.
the only files that should remain are usually .dat files but they are text files which just contain info in the files in that temp internet files folder. There is nothing stopping you checking to see if the temporary internet files are deleted when you choose that option.

system · 2007-10-12T09:42:56.000Z

Thank you for the replies. That sorted those problems!

DavidR · 2007-10-12T14:58:24.000Z

No problem, glad we could help.

Welcome to the forums.

Announcements