Educause Security Discussion mailing list archives

Re: Recent Gaobot event


From: Yandro <yandro.chavez () ITESM MX>
Date: Tue, 4 Jan 2005 10:49:33 -0600

Would you be so kind to send it to me as well

Thanks in advance.
---
Yandro Chávez Rubio
Servicios de Seguridad de la Información
Vicerrectoria de Tecnologías de Información
Tecnológico de Monterrey
Tel:      +52 (442) 217-3892. Fax: (442) 217-3778
Mobile:  +52 (442) 281-0531
Intercampus:     80 VIT 4103, 80 QRO 3391
http://www.itesm.mx
--------------------------
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-----Original Message-----
From: The EDUCAUSE Security Discussion Group Listserv
[mailto:SECURITY () LISTSERV EDUCAUSE EDU] On Behalf Of Gary Dobbins
Sent: Viernes, 24 de Diciembre de 2004 06:33 p.m.
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: Re: [SECURITY] Recent Gaobot event

Hopefully, I've replied individually with the sig to each person who's
asked on- and off-list (many have).  I'd initially written that I
would rather not post it to the list because the public nature of the
archives may make it too easy for a novice bot author to turn out a
new variant that the sig misses.

If few feel that risk remains, I'll be happy to post it here.


Barbara Tibbs wrote:
Would you please pass it on to the whole list

Thanks



Barbara Tibbs

Hampton University

757-728-6736

barbara.tibbs () hamptonu edu



------------------------------------------------------------------------

*From:* The EDUCAUSE Security Discussion Group Listserv
[mailto:SECURITY () LISTSERV EDUCAUSE EDU] *On Behalf Of *Michael Horne
*Sent:* Tuesday, December 21, 2004 10:48 AM
*To:* SECURITY () LISTSERV EDUCAUSE EDU
*Subject:* Re: [SECURITY] Recent Gaobot event



Would you be so kind to send it to me as well.

Thanks in advance and Happy Holidays!



Mike



------------------------------------------------------------------------

*From:* The EDUCAUSE Security Discussion Group Listserv
[mailto:SECURITY () LISTSERV EDUCAUSE EDU] *On Behalf Of *Joseph Vieira
*Sent:* Tuesday, December 21, 2004 9:40 AM
*To:* SECURITY () LISTSERV EDUCAUSE EDU
*Subject:* Re: [SECURITY] Recent Gaobot event

Would you mind sending it to me as well?

Joe Vieira
Desktop Security Analyst
Information Technology Services
Clark University
(508)-793-7287



-----Original Message-----
From: Gibbs, Aaron M. [mailto:AMGibbs () ST-AUG EDU]
Sent: Monday, December 20, 2004 4:55 PM
Subject: Re: Recent Gaobot event

I would like it as well.

Aaron M Gibbs
Director
Networking and Telecommunications
St. Augustine's College
Center for Information Technology
919-516-4237 (Office)
919-516-4382 (Fax)
amgibbs () st-aug edu
www.st-aug.edu



-----Original Message-----
From: The EDUCAUSE Security Discussion Group Listserv
[mailto:SECURITY () LISTSERV EDUCAUSE EDU]On Behalf Of Mark Wilson
Sent: Thursday, December 16, 2004 3:39 PM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: Re: [SECURITY] Recent Gaobot event



Gary,
I would like the snort sig as well.

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

dobbins () ND EDU 12/16/2004 11:08:23 AM >>>
If anyone would like the SNORT sig we're using to sense 'bots phoning
home
for control instructions, just drop me a line.  Am not sure posting it
here
would be wise - too many lurkers who might like to subtly alter this
overused variant to counter the sig.

When this triggers an alert on your SNORT, the bot is just waking up
and
still benign (relatively speaking) and can be removed before the
'owner'
wakes them up and uses them to do harm.



H. Morrow Long wrote:
 Gordon -- Yes, we saw this, but it was for approx. the
 two weeks prior to last week. A number of PCs
 were hit with it and they began attempting to brute
 force the passwords for (all of ?) the accounts in our
 Active Directory.

 We'd just implemented a domain account lockdown
 policy -- a short lockdown period -- after a somewhat
 high number of unsuccessful login attempts
 so we began to see the effects of the new lockdown
 policy kick into effect rather quickly (some users
 reported their accounts would lock out for the
 lockdown period).

 The infected PCs would show up in the security
 event log of other computers and the active directory
 servers with high numbers of unsuccessful login
 attempts on various accounts.

 - H. Morrow Long, CISSP, CISM
 University Information Security Officer
 Director -- Information Security Office
 Yale University, ITS


 On Dec 16, 2004, at 7:26 AM, Gordon D. Wishon wrote:

    Is anyone else seeing any evidence of this on their campus?
Like
    Boston College, we've been hit with this within the past two
weeks,
    and at one point the traffic generated by machines attempting to
    phone home seriously affected our network performance.



    Virus Steals Student Passwords: Boston College's campus network
was
    hit by a virus that forced computers to guess at passwords that
    would provide access to other linked machines.
    /The Heights/


    Curiously, we've found little discussion of this elsewhere.

    Gordon

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--

   ------------------------------------------------------------
   Gary Dobbins, CISSP -- Director, Information Security
   University of Notre Dame, Office of Information Technologies

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**********
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********** Participation and subscription information for this EDUCAUSE
Discussion Group discussion list can be found at
http://www.educause.edu/groups/.

********** Participation and subscription information for this EDUCAUSE
Discussion Group discussion list can be found at
http://www.educause.edu/groups/. ********** Participation and
subscription information for this EDUCAUSE Discussion Group discussion
list can be found at http://www.educause.edu/groups/.

--

   ------------------------------------------------------------
   Gary Dobbins, CISSP -- Director, Information Security
   University of Notre Dame, Office of Information Technologies

**********
Participation and subscription information for this EDUCAUSE Discussion
Group discussion list can be found at http://www.educause.edu/groups/.

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