Virus?

Supermule · Guru Joined: 05 Mar 2003 Posts: 510 Location: /denmark/fyn

Hi,

This kinda annoys me...Its quite often that I recieve a mail from some business partner that contains a virus....Since Im a *nix user I dont care about them. But unfortunately I sometimes forward the mail to other business partners...mail+virus that is....

Result: Im sending out virus from my Gentoo box.

Solution: ?
AV software for Linux is not half as good as for Win. I have tried allmost all, and they just dont work...What do u use?

The question could also apply to a Linux mail-server...Of course there should be AV on a mailserver. But there is none that is even half as good as for Win....Erhm?
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regards,
Supermule

Liathus · Posted: Fri Aug 22, 2003 5:04 pm Post subject:

I think you are just plain wrong about the mailserver portion of your comment. I run a medium sized linux mail server on sendmail. The server does virus scanning, file extention blocking, and spam blocking. And it wasnt that hard at all to setup as it is all managed from one interface.

I suggest you check out MIMEDefang from at www.roaringpenguin.com/mimedefang
If your server is running that you will have no problems :)

As for a client solution... don't really know as I use the above mentioned methods to sanatize my mail.

Cossins · Posted: Fri Aug 22, 2003 5:07 pm Post subject:

How can you unintentionally forward an attachment? Unless of course it's one of those VBScript things...

But you're right, there is almost no AV software for Linux, as vira isn't a problem.

- Simon

Chickpea · l33t Joined: 03 Jun 2002 Posts: 846 Location: Vancouver WA

funny that you mention AV software because I simply have not worried about getting viruses on my Linux box. I also dont open or forward attachments.

I think it was mentioned before on the forums that you would have to almost intentially send a virus thru email. But what is this thing about VBscripts?

Lycander · Guru Joined: 10 Apr 2003 Posts: 468

How about switching to a web-based email interface? Would that help prevent at least you from spreading (unintentionally) viri to other people?
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* Blessing /dev/hda2 with holy penguin pee

Cossins · Posted: Fri Aug 22, 2003 5:22 pm Post subject:

Supermule · Guru Joined: 05 Mar 2003 Posts: 510 Location: /denmark/fyn

Supermule · Guru Joined: 05 Mar 2003 Posts: 510 Location: /denmark/fyn

Cossins · Posted: Fri Aug 22, 2003 5:50 pm Post subject:

Since when have viruses become a problem on Linux?
And no, it can't be a virus unless it has some suspicious ending, like .bat, .pif, .vbs, .exe or even .js.

- Simon

Supermule · Guru Joined: 05 Mar 2003 Posts: 510 Location: /denmark/fyn

Liathus · Posted: Fri Aug 22, 2003 5:54 pm Post subject:

Liathus · Posted: Fri Aug 22, 2003 5:56 pm Post subject:

I forgot to mention that even if I didnt have the definitions that found Sobig it wouldnt matter. Like any good email administrator I block potentially harmfull file extensions... like .pif .scr .com .exe and so on...

Supermule · Guru Joined: 05 Mar 2003 Posts: 510 Location: /denmark/fyn

Supermule · Guru Joined: 05 Mar 2003 Posts: 510 Location: /denmark/fyn

Liathus · Posted: Fri Aug 22, 2003 6:22 pm Post subject:

Yes. Thats where i run Nai. Its used as part of the mimedefang program that i mentioned before.

Of course if you dont use sendmail, you could use amavis, which will work on postfix and the such.

Supermule · Guru Joined: 05 Mar 2003 Posts: 510 Location: /denmark/fyn

Liathus · Posted: Fri Aug 22, 2003 6:31 pm Post subject:

Ive never used amavis, since i can use mimedefang. But i have some friends that administer postfix mail servers that swear by it.

Supermule · Guru Joined: 05 Mar 2003 Posts: 510 Location: /denmark/fyn