AW: UDP port 4000 traffic: likely a new worm

2004-03-22 Thread Florian Frotzler
I can acknowledge that we see the worm also in Europe/Austria. Today we had a customer with a Black Ice firewall flooding us with random 4000/udp traffic before we shut him down. Kind Regards, -- DI (FH) Florian Frotzler IT Planning e W ) a ) v ) e eWave Telekommunikation GmbH A-1210 Wie

Re: UDP port 4000 traffic: likely a new worm

2004-03-21 Thread George Bakos
The number of immediately vulnerable hosts was rapidly depleted by the worm, given the launch was AFTER most business had shut down for the weekend. I'll venture that Black Ice, a commercial security product, is deployed much more widely on the corporate laptop than the home machine. I expect to

Re: UDP port 4000 traffic: likely a new worm

2004-03-20 Thread Rodney Joffe
Unfortunately the vulnerability has proven to not be restricted to port 4000. Keep monitoring SANS :-( -Original Message- From: Josh Richards <[EMAIL PROTECTED]> Date: Sat, 20 Mar 2004 13:50:30 To:[EMAIL PROTECTED] Subject: Re: UDP port 4000 traffic: likely a new worm The goo

Re: UDP port 4000 traffic: likely a new worm

2004-03-20 Thread Scott Call
Has anyone figured out the collateral damage if 4000/udp were to be blocked for a couple of days? Since the exploit is in the ICQ code of ISS's products, does blocking 4000/udp block ICQ as well? Thanks -S -- Scott Call Router Geek, ATGi, home of $6.95 Prime Rib I make the world a better

Re: UDP port 4000 traffic: likely a new worm

2004-03-20 Thread Josh Richards
The good news is that "witty" appears to not be a very witty propagator. Our flow data shows attempts to connect to 4000/udp on hosts in our network having a downward trend over the last few hours: Time Unique Source IPs 08:00 350 09:00 332 10:00 297 11:00 298 12:00 265 (all times

Re: UDP port 4000 traffic: likely a new worm

2004-03-20 Thread Josh Richards
Confirmed. We had our first customer (colo) hit yesterday evening at 20:43 PST. Additionally, they experienced the hard drive corruption (which was added to the ISC diary entry within the last several hours). Traffic was 4000/udp. Initial 90 Mbit/s peak which leveled out at a constant 60 Mbi

UDP port 4000 traffic: likely a new worm

2004-03-20 Thread Johannes B. Ullrich
Looks like there may be a worm going around hitting systems that run BlackIce. Common characteristics of the packets: Source port 4000 (but random target port) and the string "insert witty message here". details will be posted here: http://isc.sans.org/diary.html as I get them together. -- CTO