Re: How can I tell if spade is running?

[James Hoagland <hoagland () silicondefense com>]

Thanks for responding to this Gary.  Just want to make a few 
additional comments.

People sometimes get confused about where to expect Spade's anomalous 
event reports to appear.  They expect it to appear in one of Spade's 
special files.  Instead, it goes wherever your alerts from Snort 
normally go.  (E.g., to Snort's alert file or to your database)

I'm partial to the adapt3 mode (over adapt and adapt2).  It is simple 
and seems to work well.  YMMV though.

Definitely use spade-homenet.  This specifies the network over which 
to monitor packets going in to.  Since Spade needs to know what 
characteristics to expect for packets, it needs to see enough 
examples for the networks it monitors.  In general, you will not have 
that for external networks.

You can consult Spade's README (called README.Spade in the Snort 
distribution) or Usage (README.Spade.Usage) files for other useful 
information about Spade.

Best regards,

  Jim

At 3:34 PM -0700 8/23/01, Gary Grim wrote:
> Matthew,
>
> Hi, a couple of comments here.  To begin, you'll need to grab the latest
> version of spade to fix the logging bug.  Just follow the link below:
>
> http://www.silicondefense.com/software/spice/index.htm
>
> Next, the -1 is effectively an "infinite" threshold, i.e. no reporting,
> which is why you're not seeing anything in the alert file, assuming you
> are not using threshold adapting.   After you rebuild snort with the
> 010818.1 version of Spade, I would suggest something like the following
> config file options:
>
> preprocessor spade: 0 $logdir/spade.rcv $logdir/log.txt 3 50000
> preprocessor spade-homenet: xxx.xxx.xxx.xxx/yy
> preprocessor spade-adapt2: 0.01 1
>
> I would run this for a coupe of minutes.  You should get a number of
> alerts, along with a "threshold adapt" message in the alert file, and
> when you quit, $logdir/log.txt will have some stats.  If you choose to
> use "-", i.e. <stdout> for the log file, be forewarned that the stats
> immediately follow the ^C of the SIGQUIT, and are difficult to see,
> unless you look carefully.  Jim, the main dude, is aware of this, and
> will update the ouptput to include some whitespace, horizontal rules,
> and header info in a future release.
>
> After testing, I would suggest setting your threshold to around 10 or
> 12, and take the defaults for adapt2, i.e.
>
> preprocessor spade: 10 $logdir/spade.rcv $logdir/log.txt 3 50000
> preprocessor spade-homenet: xxx.xxx.xxx.xxx/yy
> preprocessor spade-adapt2:
>
> Every once in awhile, you'll probably want to check the threshold
> updates, and see if there is a nominal range in which they fall, and
> then update your initial threshold to the middle of this.




--
|*   Jim Hoagland, Associate Researcher, Silicon Defense    *|
|*               hoagland () SiliconDefense com                *|
|*              http://www.silicondefense.com/              *|
|*      Silicon Defense - Technical Support for Snort       *|
|*  Voice: (530) 756-7317              Fax: (530) 756-7297  *|

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