RE: Company being War Dialed

[James.Jackson () broadwing com]

They may be calling through a provider that is not passing on the ANI
which would make tracing the call more difficult.

James

-----Original Message-----
From: public list [mailto:nospam () none net]
Sent: Monday, April 21, 2003 1:06 AM
Cc: incidents () securityfocus com
Subject: Re: Company being War Dialed



If you have PRI lines you should have their numbers.
If you are using analog or t1's you rely on the phone company. In which
case you may consider ANI.

A good way to stop wardialing, telco firewalls.
www.securelogix.com

On Thu, 17 Apr 2003, Fred Kreitzberg wrote:

> The war dialing started last night and has continued throught the day.
They are being very noisy, staying on the line with a steady beep, beep,
beep long enough to leave a voice message.  The calling has occcured on
two different prefixes so I am concerned my company is being targeted.
> Our local service provider's security and fraud team has not been able
to identify a single source of the calls.
> We have recently done our own War-dail and feel we know all our modems
are secured correctly.
> Any thoughts on additional steps I should be taking?
>
> thanks
> Phred
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Attend Black Hat Briefings & Training Europe, May 12-15 in Amsterdam,
the 
world's premier event for IT and network security experts.  The two-day 
Training features 6 hand-on courses on May 12-13 taught by
professionals.  
The two-day Briefings on May 14-15 features 24 top speakers with no
vendor 
sales pitches.  Deadline for the best rates is April 25.  Register today
to 
ensure your place. http://www.securityfocus.com/BlackHat-incidents 
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