From: Willy Tarreau <willy@w.ods.org>
To: Wakko Warner <wakko@animx.eu.org>
Cc: Steven Cole <elenstev@mesatop.com>,
"J.A. Magallon" <jamagallon@able.es>,
Mike Galbraith <efault@gmx.de>,
linux-kernel@vger.kernel.org
Subject: Re: [OT] Re: ATTACK TO MY SYSTEM
Date: Tue, 23 Sep 2003 22:06:45 +0200 [thread overview]
Message-ID: <20030923200645.GG589@alpha.home.local> (raw)
In-Reply-To: <20030923115039.A30231@animx.eu.org>
On Tue, Sep 23, 2003 at 11:50:39AM -0400, Wakko Warner wrote:
> I'm running my own mailserver and it's hard not to accept it. I have
> basically done checks in the from and to headers. If it appears as a virus,
> i lockout the smtp sender. It's not permenant. When the virus stops, i
> unblock every one.
I've noticed that they *ALL* have their From:, To:, and Subject: written in
uppercase. So it's really easy to filter them out depending on the tools used.
If a mail header either matches ^FROM:, ^TO: or ^SUBJECT: then it has high
chances to be a spam/virus. I checked all my recent mails and a few months
back in LKML and did not found anything except spam/viruses which match this.
At least, we should be lucky that these virus writers don't fully respect
protocols...
HTH,
Willy
next prev parent reply other threads:[~2003-09-23 20:08 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-23 9:12 ATTACK TO MY SYSTEM german aracil boned
2003-09-23 10:01 ` Mike Galbraith
2003-09-23 12:01 ` Jan Evert van Grootheest
2003-09-23 12:17 ` [OFFTOPIC] " Russell King
2003-09-23 12:38 ` Jörn Engel
2003-09-23 13:43 ` iptables kernel german aracil boned
2003-09-23 12:55 ` [OFFTOPIC] Re: ATTACK TO MY SYSTEM Maciej Soltysiak
2003-09-23 13:41 ` jw schultz
2003-09-23 16:36 ` Gerhard Mack
2003-09-23 16:44 ` Maciej Soltysiak
2003-09-23 12:50 ` Breno
2003-09-23 13:40 ` J.A. Magallon
2003-09-23 14:43 ` [OT] " Steven Cole
2003-09-23 15:50 ` Wakko Warner
2003-09-23 19:24 ` Wade
2003-09-23 20:06 ` Willy Tarreau [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-09-24 7:40 John Bradford
2003-09-24 8:46 ` Willy Tarreau
2003-09-24 8:59 ` Jörn Engel
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