To firewalls list:
Recently I received an encrypted email message
through my PC's MS Outlook Express. I have also been enduring several
malicious attacks from someone using Back Orifice, Backdoor SubSeven, etc.,
and I have printed out the dates and times of some of these attacks. I have up
a firewall and also antivirus software, but I need to know just how effective
are polymorphic viruses in fooling the security software from the
more well known vendors?
In particular I need to know if my antivirus
software can be over written by a polymorphic virus? I am into Mathematics at
the university level but I do know some Computer Science.
One attempt at mail hacking could
be:
hello
mail from: (Encrypted)
rcpt to (victim's email address)
data
subject: (Encrypted)
Importance: high
MIME-Version: 1.0
Content-Type: text/html; charset =
us-ascii
Content-Transfer-Encoding: 7 bit
<HTML>
.
quit
The file is typed at the command line afterwhich
the malicious hacker enters:
type malcode.txt | etc.
Again my specific question is how effective are
encrypted polymorphic viruses at corrupting a vendor's (McAffee or Black Ice,
for instance) antivirus software or firewalls?
Robert Betts
