Please identify what kind of firewall and what type of itsp solution you
have. Its more likely a pc was hacked, because the cdr data shows the call
coming from the proxy, which is not directly exposed except through the
firewall. The call "authenticated" because it got "to" the proxy. It is more
likely the pc was hijacked.

You would be wise to also look at sipxbridge logs in the same timeframe.
============================
Tony Graziano, Manager
Telephone: 434.984.8430
Fax: 434.984.8431

Email: tgrazi...@myitdepartment.net

LAN/Telephony/Security and Control Systems Helpdesk:
Telephone: 434.984.8426
Fax: 434.984.8427

Helpdesk Contract Customers:
http://www.myitdepartment.net/gethelp/

----- Original Message -----
From: sipx-users-boun...@list.sipfoundry.org
<sipx-users-boun...@list.sipfoundry.org>
To: sipx-users@list.sipfoundry.org users <sipx-users@list.sipfoundry.org>
Sent: Fri Feb 19 11:45:55 2010
Subject: [sipx-users] Was I being hacked?

I saw in my call detail records a block of about 50 call attempts made
within 2 minutes minutes of each other to international numbers, and
using a variety of prefixes.  All calls showed the status "failed", so
I presume they did not connect.  The from field was "sip".  Here is an
example:

sip 9011441383417547 2/13/10 5:02 AM 0 seconds Failed

My guess is that my server was being probed to see if it could be
hijacked for free calls.  Does that seem right?

What exactly does it mean to have "sip" as the From?

Is there a checklist for security measures to ensure that an
installation is reasonably protected from such attempts?

Thanks,

Jeff


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