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RE: Level3 routing issues?

  • From: Christopher J. Wolff
  • Date: Sat Jan 25 03:04:49 2003

Of the customers I've had to shut off for being DOS targets, all are
windows boxen.  Perhaps there is a new windows exploit?

Regards,
Christopher J. Wolff, VP CIO
Broadband Laboratories, Inc.
http://www.bblabs.com



-----Original Message-----
From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of
hc
Sent: Friday, January 24, 2003 11:39 PM
To: Joel Perez
Cc: Aaron Burnett; Alex Rubenstein; nanog@merit.edu
Subject: Re: Level3 routing issues?



Okay this is getting bad.. one of our routers just locked up from udp 
1434's. Can't even telnet to it now.

-hc

Joel Perez wrote:

>My firewalls are going nuts with hits on UDP port 1434 also from 
>everywhere!
>
>	-----Original Message----- 
>	From: Aaron Burnett [mailto:listkeep@yet-another.com] 
>	Sent: Sat 1/25/2003 1:19 AM 
>	To: Alex Rubenstein 
>	Cc: hc; nanog@merit.edu 
>	Subject: Re: Level3 routing issues?
>	
>	
>
>
>
>	On Sat, 25 Jan 2003, Alex Rubenstein wrote:
>	
>	>
>	>
>	> I dunno about that. But, I am seeing, in the last couple
hours, all kinds
>	> of new traffic.
>	>
>	> like, customers who never get attacked or anything, all of a
sudden:
>	>
>	>
http://mrtg.nac.net/switch9.oct.nac.net/3865/switch9.oct.nac.net-3865.ht
ml
>	>
>	>
>	> We are seeing this on ports all across out network -- nearly
1/2 our ports
>	> are in delta alarm right now.
>	>
>	> Anyone else?
>	>
>	
>	Yep. Since about 12:30 am. Getting pounded on UDP port 1434 from
all over
>	the world to any address on my network.
>	
>	
>
>  
>







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