Which version of clamav you use ?
With 0.65 it works fine. If the zip is corrupted it will says:
'Seriously Broken Zip FOUND'



Le ven 12/12/2003 à 17:23, Russell J. Lahti a écrit :
> I've run into the following situation:
> 
> When an email comes in that is infected with
> Worm.Mimail.G, clamscan isn't catching it, so
> I did some manual testing:
> 
> Scan of the zip file:
> ------------------------------------------------------------
> clamscan readnow.zip
> readnow.zip: OK
> ------------------------------------------------------------
> Responds that the zip file is fine.
> 
> Unzip the zip file:
> ------------------------------------------------------------
> unzip readnow.zip
> Archive:  readnow.zip
> warning [readnow.zip]:  3 extra bytes at beginning or within zipfile
>    (attempting to process anyway)
> file #1:  bad zipfile offset (local header sig):  3
>    (attempting to re-compensate)
>   extracting: readnow.doc.scr
> -----------------------------------------------------------
> Strange zip file.. but unzip handled it.
> 
> Scan the extracted file:
> ------------------------------------------------------------
> clamscan readnow.doc.scr
> readnow.doc.scr: Worm.Mimail.G FOUND
> ------------------------------------------------------------
> Clamscan finds the contents to be a virus.
> 
> Anyone have any suggestions / fixes for this
> behavior?.. Clamscan has been great at catching
> everything else.
> 
> -Russell
> 
> 
> 
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-- 
==================
Cedric Foll
Ingénieur réseaux, Rectorat de Rouen
mèl: [EMAIL PROTECTED]
tèl: 02 35 14 77 51

"L'orgueil a plus de part que la bonté 
aux remontrances que nous faisons à 
ceux qui commettent des fautes; et nous 
ne les reprenons pas tant pour les en 
corriger que pour leur persuader que 
nous en sommes exempts."
La rochefoucauld
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