bugtraq - new linux malware

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Date: Sun, 19 Feb 2006 00:40:18 +0200
From: Gadi Evron <ge@...uxbox.org>
To: bugtraq@...urityfocus.com
Cc: "full-disclosure@...ts.grok.org.uk" <full-disclosure@...ts.grok.org.uk>
Subject: new linux malware


Today, we received a notification about a new Linux malware ItW (In the 
Wild).

Chas Tomlin (http://www.ecs.soton.ac.uk/~cet/) provided Shadowserver 
(http://www.shadowserver.org/) and Nicholas Alright who notified the 
relevant operational communities, with the information on the binaries. 
He captured them with squil (http://sguil.sourceforge.net/).

Chas is working with Shadowserver to identify better ways to 
trackdown/takedown botnets.

*The credit should go to him and Shadowserver*.

Shadowserver has been a responsible and essential part of recent 
Internet security activities.

As anti virus vendors have been notified will soon do a write-up on it, 
I see no reason not to publicize it here.

MD5:
c2576aeff0fd9267b6cc3a7e1089e05d ~/samples/derfiq
e9a2b13fe02d013cc5e11ee586d11c38 ~/samples/session

We are not quite sure as of yet exactly what this does, it can be a 
Linux virus, a Linux Trojan horse, a Linux worm... we are not even sure 
if the checksums above are useful at all. We hope to know more soon and 
we will update as we do.

There are some interesting strings to be noted:

NOTICE %s :TSUNAMI <target> <secs>                          = Special 
packeter
that wont be blocked by most firewalls
NOTICE %s :PAN <target> <port> <secs>                       = An 
advanced syn
flooder that will kill most network drivers
NOTICE %s :UDP <target> <port> <secs>                       = A udp flooder
NOTICE %s :UNKNOWN <target> <secs>                          = Another
non-spoof udp flooder
NOTICE %s :NICK <nick>                                      = Changes 
the nick
of the client
NOTICE %s :SERVER <server>                                  = Changes 
servers
NOTICE %s :GETSPOOFS                                        = Gets the 
current
spoofing
NOTICE %s :SPOOFS <subnet>                                  = Changes 
spoofing
to a subnet
NOTICE %s :DISABLE                                          = Disables all
packeting from this client
NOTICE %s :ENABLE                                           = Enables all
packeting from this client
NOTICE %s :KILL                                             = Kills the 
client
NOTICE %s :GET <http address> <save as>                     = Downloads 
a file
off the web and saves it onto the hd
NOTICE %s :VERSION                                          = Requests 
version
of client
NOTICE %s :KILLALL                                          = Kills all
current packeting
NOTICE %s :HELP                                             = Displays this
NOTICE %s :IRC <command>                                    = Sends this
command to the server
NOTICE %s :SH <command>                                     = Executes a
command

'session', current detection:
AntiVir	6.33.1.50/20060218	found [BDS/Katien.R]
Avast	4.6.695.0/20060216	found nothing
AVG	718/20060217	found nothing
Avira	6.33.1.50/20060218	found [BDS/Katien.R]
BitDefender	7.2/20060218	found nothing
CAT-QuickHeal	8.00/20060216	found nothing
ClamAV	devel-20060126/20060217	found nothing
DrWeb	 4.33/20060218	found nothing
eTrust-InoculateIT	23.71.80/20060218	found nothing
eTrust-Vet	12.4.2086/20060217	found nothing
Ewido	3.5/20060218	found nothing
Fortinet	2.69.0.0/20060218	found nothing
F-Prot	3.16c/20060217	found nothing
Ikarus	0.2.59.0/20060217	found [Backdoor.Linux.Keitan.C]
Kaspersky	4.0.2.24/20060218	found [Backdoor.Linux.Keitan.c]
McAfee	4700/20060217	found [Linux/DDoS-Kaiten]
NOD32v2	1.1413/20060217	found nothing
Norman	5.70.10/20060217	found nothing
Panda	9.0.0.4/20060218	found nothing
Sophos	4.02.0/20060218	found nothing
Symantec	8.0/20060218	found [Backdoor.Kaitex]
TheHacker	5.9.4.098/20060218	found nothing
UNA	1.83/20060216	found nothing
VBA32	3.10.5/20060217	found nothing

'derfiq' current detection:
AntiVir	6.33.1.50/20060218	found [Worm/Linux.Lupper.B]
Avast	4.6.695.0/20060216	found nothing
AVG	718/20060217	found nothing
Avira	6.33.1.50/20060218	found [Worm/Linux.Lupper.B]
BitDefender	7.2/20060218	found nothing
CAT-QuickHeal	8.00/20060216	found nothing
ClamAV	devel-20060126/20060217	found nothing
DrWeb	 4.33/20060218	found nothing
eTrust-InoculateIT	23.71.80/20060218	found nothing
eTrust-Vet	12.4.2086/20060217	found nothing
Ewido	3.5/20060218	found nothing
Fortinet	2.69.0.0/20060218	found nothing
F-Prot	3.16c/20060217	found nothing
Ikarus	0.2.59.0/20060217	found [Net-Worm.Linux.Lupper.B]
Kaspersky	4.0.2.24/20060218	found nothing
McAfee	4700/20060217	found nothing
NOD32v2	1.1413/20060217	found nothing
Norman	5.70.10/20060217	found nothing
Panda	9.0.0.4/20060218	found nothing
Sophos	4.02.0/20060218	found nothing
Symantec	8.0/20060218	found [Hacktool]
TheHacker	5.9.4.098/20060218	found nothing
UNA	1.83/20060216	found nothing
VBA32	3.10.5/20060217	found nothing

This write-up can be found here:
http://blogs.securiteam.com/index.php/archives/303

We will notify as we get new updates here:
http://blogs.securiteam.com

	Gadi.

-- 
http://blogs.securiteam.com/

"Out of the box is where I live".
	-- Cara "Starbuck" Thrace, Battlestar Galactica.
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