Penetration Testing mailing list archives
Re: Mail Server testing
From: "per () same net" <per () same net>
Date: Mon, 12 May 2003 05:39:51 +0200
Hi Amal and List Some thoughts... * Relay checks. Test different methods for relaying via the server, one good test can be found at www.abuse.org/relay.html. * Zip-Of-Death. Make one huge (a couple of gigabytes) file and fill it with homogenous data, for instance only the character "a". Zip it. This will construct of a file that says "this files contains of 10(8) a:s" that is very small. Most modern mail content systems handles this today, some older might not. * Embedded script-viruses. Some virusscanners do only check attached files, and will not look for embedded script-viruses as Kak-worm. /Per Niila On Saturday 10 May 2003 07.17, Amal Al Hajeri wrote:
Hi List, Am running a pen-test these days against mail servers that have a server side virus scanner as well as a mail content filtering product for inforcing the organization's mail usage policy. I ran couple of tests including : 1.Sending viruses and worms. 2.Sending anti virus testing files from the eicar project http://www.eicar.org/. 3.Sending renamed virus files to files with an allowed type of files extensions. 4.Sending an archived zip files *a zip file that has been zipped for over 4000 times* some anti viruses hang while trying to unzip this file. 5.Sending a genuine exe file renamed to an allowed type of files extension. 6.Sending mails with wordings like *Middlesex* A University in UK. 7.Mail bombing test. I would like to know if you have any other ideas to test server side virus scanners and content filtering products. Also i would like to know what is the best way to prevent mail spamming and bombing. Thanks.
--------------------------------------------------------------------------- Did you know that you have VNC running on your network? Your hacker does. Plug your security holes. Download a free 15-day trial of VAM: http://www.securityfocus.com/StillSecure-pen-test ----------------------------------------------------------------------------
Current thread:
- Mail Server testing Amal Al Hajeri (May 11)
- <Possible follow-ups>
- Re: Mail Server testing per () same net (May 12)
- Re: Mail Server testing Nicolas Gregoire (May 13)
- Re: Mail Server testing Volker Tanger (May 14)
- Re: Mail Server testing Nicolas Gregoire (May 13)