Penetration Testing mailing list archives
Re: Tool to find hidden web proxy server
From: Christine Kronberg <Christine_Kronberg () genua de>
Date: Thu, 2 Sep 2004 10:34:55 +0200 (CEST)
Hi,
This problem is strictly with in company internet access firewall and in the LAN only. In a company, policy for Internet access says it is through IP only. The others can not browse the internet. This policy is implemented on firewall. Few smart guys have installed free proxy server running on non default ports and distributed the internet access to their friends. The firewall sees the traffic coming from the authorized IP and does not stop them. We want to know who has installed proxy on there machine.
What about setting up snort sensors to sniff the LAN for HTTP proxy traffic by excluding the "good" IPs as sources? Or the other way round: Configuring the IDS to sniff HTTP Proxy connections to the "good" IPs? This should bring up those who connect to those proxies as well as the proxies themselves. Cheers, Chris Kronberg. -- GeNUA mbH ------------------------------------------------------------------------------ Ethical Hacking at the InfoSec Institute. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors. Check out our Advanced Hacking course, learn to write exploits and attack security infrastructure. Attend a course taught by an expert instructor with years of in-the-field pen testing experience in our state of the art hacking lab. Master the skills of an Ethical Hacker to better assess the security of your organization. http://www.infosecinstitute.com/courses/ethical_hacking_training.html -------------------------------------------------------------------------------
Current thread:
- Tool to find hidden web proxy server vinay mangal (Sep 01)
- Re: Tool to find hidden web proxy server Jose Maria Lopez (Sep 01)
- Re: Tool to find hidden web proxy server Miles Stevenson (Sep 01)
- Re: Tool to find hidden web proxy server Gary E. Miller (Sep 02)
- Re: Tool to find hidden web proxy server grutz (Sep 02)
- RE: Tool to find hidden web proxy server wnorth (Sep 02)
- Re: Tool to find hidden web proxy server vinay mangal (Sep 01)
- Re: Tool to find hidden web proxy server Javier Fernandez-Sanguino (Sep 02)
- Re: Tool to find hidden web proxy server Marc (Sep 02)
- Re: Tool to find hidden web proxy server Martin Mačok (Sep 02)
- Re: Tool to find hidden web proxy server Christine Kronberg (Sep 02)
- Re: Tool to find hidden web proxy server Paulo Henrique Fisch de Brito (Sep 02)
- Re: Tool to find hidden web proxy server Jose Maria Lopez (Sep 02)
- Re: Tool to find hidden web proxy server R. DuFresne (Sep 02)
- Re: Tool to find hidden web proxy server Jose Maria Lopez (Sep 02)
- Re: Tool to find hidden web proxy server Gary E. Miller (Sep 03)
- Re: Tool to find hidden web proxy server Jose Maria Lopez (Sep 03)
- Re: Tool to find hidden web proxy server vinay mangal (Sep 01)
- Re: Tool to find hidden web proxy server Chris Brenton (Sep 02)
- Re: Tool to find hidden web proxy server Gary E. Miller (Sep 02)
- Re: Tool to find hidden web proxy server hashem (Sep 02)
- Re: Tool to find hidden web proxy server Rogan Dawes (Sep 02)