Re: Am I the only one?

["Helms, Sandra" <SANDY () BUMAIL BRADLEY EDU>]

Hi there - we are being hit with this and are being swamped trying to
locate instances of the worm.  Do you scan machines for windows and
virus updates?  If so, what products(s) do you use?  This is something
we have not seriously considered before; however, this new batch of
worms are insidious and users have not noticed ill-effects so they are
not reporting it. 

Sandra J. Helms
Director of Academic Computing
Bradley University
1501 W. Bradley Avenue
Peoria, IL  61625
309.677.2808
sandy () bradley edu


-----Original Message-----
From: Mark Wilson [mailto:wilsodm () AUBURN EDU] 
Sent: Wednesday, April 14, 2004 10:25 AM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: Re: [SECURITY] Am I the only one?


We have seen this extensively on our network.  It is the AgoBot/GaoBOt
worm/trojan or varient.  It also goes by the name polybot.  Nasty little
booger.  It installs a backdoor and scans for "blank" or weak admin
passwords, various MS vulnerabilities, and DameWare (port 6129)
weaknesses.  It kills most anti-virus processes/programs. Seems to be
particularly bad on University networks.

If you do an nmap scan, you will find high ports open.  Most times when
you telnet into the trojan port (BTW, it changes on each infection), you
will get: 220 Bot Server (Win32)

It has remote command and DOS functionality.
Useful Links:
http://uk.trendmicro-europe.com/enterprise/security_info/ve_detail.php?V
Name=WORM_AGOBOT.HN&VSect=T

http://vil.nai.com/vil/content/v_101100.htm
http://www.lurhq.com/phatbot.html
http://securityresponse.symantec.com/avcenter/venc/data/w32.gaobot.ul.ht
ml



Mark Wilson
GCIA, CISSP #53153
Network Security Specialist
Auburn University
(334) 844-9347

> > > jim.pollard () MAIL UTEXAS EDU 4/14/2004 9:50:18 AM >>>
Or did I miss it on Bugtraq?  Recently I've noticed a scan pattern in my
logs and wonder if anyone might recognize it as either a known virus or
some kiddie scanning tool looking for virus backdoors?  There are some
variations... occasionally port 80 and 8080 are included.

Service: 1025 (tcp/1025) (net2fw:DROP:,eth1,none) - 2 packets (take your
pick... either network blackjack or an assortment of viruses and
backdoors)
         Service: 2745 (tcp/2745) (:net2fw:DROP:,eth1,none) - 2 packets
(Beagle virus)
         Service: 3127 (tcp/3127) (:net2fw:DROP:,eth1,none) - 2 packets
(MyDoom virus)
         Service: 6129 (tcp/6129) (net2fw:DROP:,eth1,none) - 3 packets
(W32.Mockbot) also Dameware


Thanks!

Jim

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