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Article #492

NAV2000 Bloodhound technology -- really good!

#492
From: Baba
Date: Fri, 21 Apr 2000 00:00
31 lines
2250 bytes
Security guys would have heard of netcat (available from www.l0pht.com),
"the TCP/IP swiss army knife".  It is available in Unix and NT versions.

You may also have heard of "eLiTeWrap", a program which can be used to hide
trojans (you can set it to pack a harmless .EXE file like a game, with
BackOrifice, and have them both unpack and execute, one executing visibly,
and one hidden).

Of course, netcat is not a virus or trojan and therefore NAV2000 did not
detect anything.  However, when I used eLiTeWrap to pack netcat with a batch
file which contained the single line:

nc -L -d -e cmd.exe -p 12

(If this command was executed on an NT system, netcat would listen on port
12, in stealth mode, and anybody connecting to port 12 would get a command
prompt.)

So anyway, I had created a program using eLiTeWrap which would, invisibly,
unpack netcat and then run the above-mentioned batch file.

And guess what?

NAV2000 picked up this program I had created as being infected with
"Backdoor.Trojan".  Is this Symantec's "Bloodhound" technology at work?
It's amazing!

--
Baba the Cat
"I have studied many philosophers and many cats. The wisdom of cats is
infinitely superior." - Hippolyte Taine
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From: "Baba" <spammers@pleasedie.com>
Subject: NAV2000 Bloodhound technology -- really good!
Date: 2000/04/21
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Newsgroups: alt.comp.virus,easynet.talk,symantec.support.win95.nortonantivirus.general,symantec.support.winnt.nortonantivirus.general