Re: [gentoo-user] Re: Which desktop antivirus?

2011-10-30 Thread Mick
On Saturday 22 Oct 2011 21:31:32 Neil Bothwick wrote:
 On Sat, 22 Oct 2011 20:03:44 +0300, Nikos Chantziaras wrote:
  ClamVM has poor detection rates.  You might want to look into AVG Free
  for Linux.
 
 Do you have any documentation for this?
 
 I'm not saying you're wrong, rather that I'd like to know more.

This is not current, but if it is to be believed (and without details on the 
methodology I'd be reluctant to believe it) clamav came 2nd after Karspersky:

  http://www.builderau.com.au/blogs/byteclub/viewblogpost.htm?p=339270831


This on the other hand is both current and more meaningful, because it 
includes zero day attacks:

  http://www.shadowserver.org/wiki/pmwiki.php/AV/VirusDailyStats

ClamAV on linux comes 3rd for zero day attacks and 16th on retries.
-- 
Regards,
Mick


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Re: [gentoo-user] Re: Which desktop antivirus?

2011-10-23 Thread Mick
On Saturday 22 Oct 2011 22:30:45 Volker Armin Hemmann wrote:
 Am Samstag 22 Oktober 2011, 18:14:32 schrieb Nikos Chantziaras:
  On 10/22/2011 05:07 PM, Adam Carter wrote:
   there aren't any Linux viruses,
   
   Except for the ones listed on the page below, which is probably
   incomplete. http://en.wikipedia.org/wiki/Linux_malware
   
   But yeah, on a linux desktop (especially a Gentoo one) you don't need
   a virus scanner. Yet.
  
  There are literally *millions* of Windows viruses.  The Wikipedia page
  just proves Linux has virtually no viruses, and those listed don't even
  work anymore (exploits have been patched long ago.)  Most existing Linux
  malware targets servers (like PHP software exploits in forums, wikis,
  etc) and desktop users don't need to worry.
  
  Furthermore, even if there were enough Linux viruses to worry about,
  there isn't a good way of getting infected.  On Windows, you download
  random executables from the net.  On Gentoo, you install your stuff
  through portage.  It's nearly impossible to get infected.
 
 except when someone puts up or takes over a rsync server and starts
 providing malicious ebuilds.
 
 
 Hilarious.

Isn't that what happened back in 2003/04?  I can't recall exactly but there 
was some discussion where it was suggested that clients should rsync against 
two different mirrors and diff the portage contents (or hashes thereof?), 
before 
accepting the sync result.
-- 
Regards,
Mick


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Re: [gentoo-user] Re: Which desktop antivirus?

2011-10-23 Thread Florian Philipp
Am 23.10.2011 09:49, schrieb Mick:
 On Saturday 22 Oct 2011 22:30:45 Volker Armin Hemmann wrote:
 Am Samstag 22 Oktober 2011, 18:14:32 schrieb Nikos Chantziaras:
 On 10/22/2011 05:07 PM, Adam Carter wrote:
 there aren't any Linux viruses,

 Except for the ones listed on the page below, which is probably
 incomplete. http://en.wikipedia.org/wiki/Linux_malware

 But yeah, on a linux desktop (especially a Gentoo one) you don't need
 a virus scanner. Yet.

 There are literally *millions* of Windows viruses.  The Wikipedia page
 just proves Linux has virtually no viruses, and those listed don't even
 work anymore (exploits have been patched long ago.)  Most existing Linux
 malware targets servers (like PHP software exploits in forums, wikis,
 etc) and desktop users don't need to worry.

 Furthermore, even if there were enough Linux viruses to worry about,
 there isn't a good way of getting infected.  On Windows, you download
 random executables from the net.  On Gentoo, you install your stuff
 through portage.  It's nearly impossible to get infected.

 except when someone puts up or takes over a rsync server and starts
 providing malicious ebuilds.


 Hilarious.
 
 Isn't that what happened back in 2003/04?  I can't recall exactly but there 
 was some discussion where it was suggested that clients should rsync against 
 two different mirrors and diff the portage contents (or hashes thereof?), 
 before 
 accepting the sync result.

That still doesn't protect you against man-in-the-middle attacks or an
attack against the CVS tree (like the recent kernel.org disaster).

Signing the manifest files is really the only reasonable solution. Good
thing there seems to be some progress in that direction:
https://bugs.gentoo.org/show_bug.cgi?id=360363

Regards,
Florian Philipp



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[gentoo-user] Re: Which desktop antivirus?

2011-10-22 Thread Nikos Chantziaras

On 10/22/2011 02:27 PM, Mick wrote:

Hi All,

I'm asked for a desktop antivirus (the box is running KDE) but I have never
used an antivirus on Linux.  This page that I googled up shows a number of
them:

   http://www.makeuseof.com/tag/free-linux-antivirus-programs/

Meanwhile, portage only lists clamav under app-antivirus/.

The machine in question is running kmail to receive/send messages from ISP
mail servers and ssmtp to send log messages for relaying via said ISP.

What have you tried and what would you recommend for such a desktop setup?


You don't need one.  Linux anti-virus programs are there to protect 
Windows installations (Windows executables passing through a Linux box). 
 Since you said Desktop, I assume you meant protect against Linux 
viruses.  Since there aren't any Linus viruses, there's no need for 
something like that.





Re: [gentoo-user] Re: Which desktop antivirus?

2011-10-22 Thread Adam Carter
 there aren't any Linux viruses,

Except for the ones listed on the page below, which is probably incomplete.
http://en.wikipedia.org/wiki/Linux_malware

But yeah, on a linux desktop (especially a Gentoo one) you don't need
a virus scanner. Yet.



Re: [gentoo-user] Re: Which desktop antivirus?

2011-10-22 Thread Pandu Poluan
On Oct 22, 2011 9:10 PM, Adam Carter adamcart...@gmail.com wrote:

  there aren't any Linux viruses,

 Except for the ones listed on the page below, which is probably
incomplete.
 http://en.wikipedia.org/wiki/Linux_malware

 But yeah, on a linux desktop (especially a Gentoo one) you don't need
 a virus scanner. Yet.


That IMO is one aspect where Gentoo is 'naturally hardened' even when
compared to other Linux distros: malware writers can't be sure that the
vectors they need exist in a target box.

Rgds,


[gentoo-user] Re: Which desktop antivirus?

2011-10-22 Thread Nikos Chantziaras

On 10/22/2011 05:07 PM, Adam Carter wrote:

there aren't any Linux viruses,


Except for the ones listed on the page below, which is probably incomplete.
http://en.wikipedia.org/wiki/Linux_malware

But yeah, on a linux desktop (especially a Gentoo one) you don't need
a virus scanner. Yet.


There are literally *millions* of Windows viruses.  The Wikipedia page 
just proves Linux has virtually no viruses, and those listed don't even 
work anymore (exploits have been patched long ago.)  Most existing Linux 
malware targets servers (like PHP software exploits in forums, wikis, 
etc) and desktop users don't need to worry.


Furthermore, even if there were enough Linux viruses to worry about, 
there isn't a good way of getting infected.  On Windows, you download 
random executables from the net.  On Gentoo, you install your stuff 
through portage.  It's nearly impossible to get infected.





[gentoo-user] Re: Which desktop antivirus?

2011-10-22 Thread Nikos Chantziaras

On 10/22/2011 06:40 PM, Mick wrote:

[...]
Anyway, the use case in point is to protect other MSWindows OS' when
sending/forwarding office and pdf documents.  So the user would like to be able
to scan emails as they come in/sent out.

Will clamav do this with KDE4?


ClamVM has poor detection rates.  You might want to look into AVG Free 
for Linux.





Re: [gentoo-user] Re: Which desktop antivirus?

2011-10-22 Thread Mark Knecht
On Sat, Oct 22, 2011 at 8:14 AM, Nikos Chantziaras rea...@arcor.de wrote:

 There are literally *millions* of Windows viruses.

I use Kaspersky in my Windows VMs.

6,028,900 virus signatures as of an update run 1 hour ago...

6,029,804 now...

Go figure...

- Mark



Re: [gentoo-user] Re: Which desktop antivirus?

2011-10-22 Thread Neil Bothwick
On Sat, 22 Oct 2011 20:03:44 +0300, Nikos Chantziaras wrote:

 ClamVM has poor detection rates.  You might want to look into AVG Free 
 for Linux.

Do you have any documentation for this?

I'm not saying you're wrong, rather that I'd like to know more.


-- 
Neil Bothwick

Assembler: (n.) a minor program of interest only to obsessed programmers.


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Re: [gentoo-user] Re: Which desktop antivirus?

2011-10-22 Thread Florian Philipp
Am 22.10.2011 17:14, schrieb Nikos Chantziaras:
 On 10/22/2011 05:07 PM, Adam Carter wrote:
 there aren't any Linux viruses,

 Except for the ones listed on the page below, which is probably
 incomplete.
 http://en.wikipedia.org/wiki/Linux_malware

 But yeah, on a linux desktop (especially a Gentoo one) you don't need
 a virus scanner. Yet.
 
 There are literally *millions* of Windows viruses.  The Wikipedia page
 just proves Linux has virtually no viruses, and those listed don't even
 work anymore (exploits have been patched long ago.)  Most existing Linux
 malware targets servers (like PHP software exploits in forums, wikis,
 etc) and desktop users don't need to worry.
 
 Furthermore, even if there were enough Linux viruses to worry about,
 there isn't a good way of getting infected.  On Windows, you download
 random executables from the net.  On Gentoo, you install your stuff
 through portage.  It's nearly impossible to get infected.
 

Unless you hijack one of the portage mirrors or stage a
man-in-the-middle attack. Only a few manifest files in the official
portage tree are signed with PGP and even there I don't think emerge
checks the keys, only the normal hash keys. That is something that bugs
me for ages.

Regards,
Florian Philipp




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Re: [gentoo-user] Re: Which desktop antivirus?

2011-10-22 Thread Volker Armin Hemmann
Am Samstag 22 Oktober 2011, 18:14:32 schrieb Nikos Chantziaras:
 On 10/22/2011 05:07 PM, Adam Carter wrote:
  there aren't any Linux viruses,
  
  Except for the ones listed on the page below, which is probably
  incomplete. http://en.wikipedia.org/wiki/Linux_malware
  
  But yeah, on a linux desktop (especially a Gentoo one) you don't need
  a virus scanner. Yet.
 
 There are literally *millions* of Windows viruses.  The Wikipedia page
 just proves Linux has virtually no viruses, and those listed don't even
 work anymore (exploits have been patched long ago.)  Most existing Linux
 malware targets servers (like PHP software exploits in forums, wikis,
 etc) and desktop users don't need to worry.
 
 Furthermore, even if there were enough Linux viruses to worry about,
 there isn't a good way of getting infected.  On Windows, you download
 random executables from the net.  On Gentoo, you install your stuff
 through portage.  It's nearly impossible to get infected.

except when someone puts up or takes over a rsync server and starts providing 
malicious ebuilds.


Hilarious.
-- 
#163933



Re: [gentoo-user] Re: Which desktop antivirus?

2011-10-22 Thread Adam Carter
 Furthermore, even if there were enough Linux viruses to worry about,
 there isn't a good way of getting infected.  On Windows, you download
 random executables from the net.  On Gentoo, you install your stuff
 through portage.  It's nearly impossible to get infected.

 except when someone puts up or takes over a rsync server and starts providing
 malicious ebuilds.

And most malware runs an exploit to install itself, it doesn't require
the user to run an installation program. So typical attack vectors
are: network services, documents/media files (.pdfs flash etc), and
all the usual web stuff. As stated earlier buffer overflows against
Gentoo would be a nightmare to write due to the system
variabilityRHEL not so much.