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new linux malware
From: Gadi Evron <ge () linuxbox org>
Date: Sun, 19 Feb 2006 00:40:18 +0200

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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