lkml.org 
[lkml]   [2003]   [Sep]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [OT] Re: ATTACK TO MY SYSTEM
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

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:48    [from the cache]
©2003-2011 Jasper Spaans. Advertise on this site