Re: Conflicker/NMAP

[Dennis Meharchand <dennis () VALTX COM>]

Believing that Anti Virus/Endpoint Security Solutions can reliably detect
known malware is itself a false positive.

In a recent comprehensive test on known malware Symantec failed 17.6% of the
time and McAfee 22.3% of the time - they failed to detect malware that they
knew about.



We can assume that they fail near 100% of the time on new unknown malware.



Here's a revised mitigation list:

1.       Lock it up (the boot image) to eliminate drive by attacks

2.       Patch (not that necessary if 1. Is done but still a good thing)

3.       Endpoint Software Solutions (mostly do nothing but makes folks feel
good) - occasional full disk scan may have some benefit



Dennis Meharchand

CEO, Valt.X Technologies Inc.

Cell: 416-618-4622

Tel: 1-800-361-0067, 416-746-6669

Fax: 416-746-2774

Email: dennis () valtx com

Web: www.valtx.com



From: The EDUCAUSE Security Constituent Group Listserv
[mailto:SECURITY () LISTSERV EDUCAUSE EDU] On Behalf Of Jerry Sell
Sent: March 31, 2009 10:50 AM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: Re: [SECURITY] Conflicker/NMAP



There are three things that mitigate the Confickr worm.



1.       Up to date Virus protection. All of the major vendors and most of
the small vendors have signatures that will detect and remove Confickr.

2.       Up to date patches or blocking for port 445.

3.       Having autorun disabled for USB devices.



We have not detected anything so far using the scs scanner, but we have all
three of these in place.



Thank you,



Jerry Sell, CISSP

Security Analyst

Brigham Young University

(801)422-2730

Jerry_Sell () byu edu





From: The EDUCAUSE Security Constituent Group Listserv
[mailto:SECURITY () LISTSERV EDUCAUSE EDU] On Behalf Of Harris, Michael C.
Sent: Tuesday, March 31, 2009 8:27 AM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: Re: [SECURITY] Conflicker/NMAP



Using both the Python scs scanner and the Nmap method we have had
unbelievable results as well.  Enough to make me question both scanning
methods.  I have not yet infected a machine in quarantine and scanned it to
prove the false negative. if I can prove that either way I'll post again
later today.



Mike

University of Missouri



  _____

From: The EDUCAUSE Security Constituent Group Listserv
[mailto:SECURITY () LISTSERV EDUCAUSE EDU] On Behalf Of Consolvo, Corbett D
Sent: Tuesday, March 31, 2009 9:22 AM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: [SECURITY] Conflicker/NMAP

I realize many folks may not want to answer this, but has anyone had many
positives/infections with the released nmap scan for Conflicker?  So far we
seem to be coming up clean and many other folks I've talked to or emailed
with have come up clean as well.  I'm just concerned about the possibility
of false negatives.  Of course, the problem may not be particularly
wide-spread except in the eyes of some media outlets.



Thanks,

Corbett Consolvo

Texas State University