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RE: Beware of Virus zip attachment [Was: SUO: Weah, hello! :-)]




Thanks, that was what I thought might be the case,
but lots of descriptions didn't mention for sure that
the user has to both unzip and execute a program
contained in the .zip folder.  I would never run
an .exe in a .zip that I wasn't sure of.  

The press release you included makes that clear.

Rich


Randall R Schulz wrote: 
> Richard,
> 
> Opening a straight Zip archive poses no risk in itself. 
> Extracting and 
> executing its contents would expose you to malicious code, if 
> any. If the 
> archive was equipped with auto-extracting, auto-executing 
> adornments and 
> content, then the default "open" action would likewise expose 
> you to any 
> malicious code within.
> 
> The password issue is a red herring, really. Here's a notice 
> from my ISP 
> regarding this new piece of malicious code:
> 
> -==--==--==--==--==--==--==--==--==--==--==--==--==--==--==-
> 
> Wed Mar  3 09:17:51 PST 2004 -- Virus Alert.  A new variant 
> of the Beagle 
>  virus was released yesterday.  The virus spreads through an email
>  attachment and is hidden in an attached zip file.  Sonic.net's virus
>  scanners began filtering for this variation a few hours after its 
>  release.
>    
>  For more information on the virus and how to remove it, please visit:
> 
>  <http://securityresponse.symantec.com/avcenter/venc/data/
> w32.beagle.k@mm.html>
>  <http://vil.nai.com/vil/content/v_101061.htm>
> 
>    -Sonic.net Support
> 
> -==--==--==--==--==--==--==--==--==--==--==--==--==--==--==-
> 
> Wed Mar  3 09:17:51 PST 2004 -- VIRUS ALERT.  A new variant 
> of the Beagle 
>  virus was released yesterday.  The virus spreads through an email
>  attachment and is hidden in an attached zip file.  UPDATE - 
> This virus
>  has been mutating extensively, and we are unable to block it's many
>  variants at this time.  In addition, most PC anti-virus 
> software is not
>  blocking this virus.
> 
>  That said, it requires quite a bit of user interaction for 
> the PC to be
>  infected.  Uses must open the encrypted ZIP using the 
> password, then run
>  the enclosed program.  Needless to say, DON'T DO THIS.
>    
>  The virus may pose as a communication from your ISP or mail service
>  provider, and may include text which indicates that a 
> security or virus
>  problem requires that you open and execute the file.  Don't 
> be fooled!
> 
>  For more information on the virus and how to remove it, please visit:
> 
>  <http://securityresponse.symantec.com/avcenter/venc/data/
> w32.beagle.k@mm.html>
>  <http://vil.nai.com/vil/content/v_101061.htm>
> 
>    -Sonic.net Support
> 
> -==--==--==--==--==--==--==--==--==--==--==--==--==--==--==-
> 
> 
> The passwords are not a form of cryptographic protection on 
> the content of 
> the Zip archive. Under Linux, e.g., that archive opens 
> without entering 
> any password.
> 
> 
> Randall Schulz
> 
> 
> On Wednesday 03 March 2004 09:42, Richard Cooper wrote:
> > Murray,
> >
> > Do you know if a .zip file without a password
> > is safe to open on windows?  I've heard mixed
> > rumors on that one, but nobody seems to know
> > for sure.
> >
> > Also, I've gotten half a dozen .zip attachments
> > this morning from weird addresses.  Some new
> > virus must be out.
> >
> > Rich
> 
> 
> /center>
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>