OSEC

Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email hr@neohapsis.com
 
From: jim terry (jtixthusexcite.com)
Date: Mon Dec 24 2001 - 00:58:19 CST

  • Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

    Hi all,

    I would like to ask a few more questions. The first is about the ability to
    enhance embedded signatures in sensor v3.0. Why do I want to do this in the
    SigWizMenu as opposed to the Signatures section in CSPM?

    The next one is I turned on signature 6910 (NetFlood UDP)in CSPM. This
    caused hundreds of false psitives and the NDSB said:

         This signature is disabled by default. In order to properly utilize
    this signature, it must be put into "diagnostic" mode. This is done by
    enabling the signature, setting the "Rate" parameter to zero, and letting
    the sensor operate for a period of time. While in "diagnostic" mode, alarms
    will be generated with the current rate of all UDP traffic. Using these
    rates, a threshold should be chosen to indicate when the level of all UDP
    traffic is no longer within the acceptable range for the network being
    monitored. After the threshold is determined, it should be used as the value
    of "Rate" parameter for this signature. Note: This signature should not be
    left in "diagnostic" mode for permanent operation due to the performance
    overhead created by monitoring traffic rates.

    Do I set the rate to zero in the SigWizMenu? Additionally, how do I tell
    what the threshold should be?

    Lots of questions I know.

    Thanks for your patience.

    JT

    ______________________________________________________________________________
    Send a friend your Buddy Card and stay in contact always with Excite Messenger
    http://messenger.excite.com