bugtraq - RE: Bypassing Personal Firewall, is it that* hard?

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Date: Tue, 4 Oct 2005 07:59:46 +0530
From: "Aditya Deshmukh" <aditya.deshmukh@...ine.gateway.strangled.net>
To: "'Bipin Gautam'" <gautam.bipin@...il.com>,
	"'Zone Labs Security Team'" <security@...elabs.com>
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
Subject: RE: Bypassing Personal Firewall, is it that* hard?

> say... a backdoor want to communicate to its server... It can do
> is,.... use a trusted internal application to do the job. Suppose; it
> creates a batch file run the batch file  (evil.bat) & executes this
> command

this has been going on for years - there are some trojans that create 
An invisible browser window at the screen center to comm with the 
Server. 

This is the reason most firewalls like show you a popup saying 
the [app-name] trying to connect to [server-name] at [port-number]

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