Re: Increase of DOS attacks using TCP src and/or dst of 0

2012-03-07 Thread George Herbert
Out of curiosity - Is it possible it's a command and control network, rather than directly an attack? On Wed, Mar 7, 2012 at 2:41 PM, Chris Stone wrote: > On Wed, Mar 7, 2012 at 1:45 PM, Matthew Huff wrote: >> Anyone else see a massive increase of scanning/dos with TCP source and/or >> dst por

Re: Increase of DOS attacks using TCP src and/or dst of 0

2012-03-07 Thread Chris Stone
On Wed, Mar 7, 2012 at 1:45 PM, Matthew Huff wrote: > Anyone else see a massive increase of scanning/dos with TCP source and/or > dst port of 0? We started seeing a massive increase today creating some > issue with our firewalls. Not seeing a ton of them, but do see a few logged on most all of ou

Re: Increase of DOS attacks using TCP src and/or dst of 0

2012-03-07 Thread Pete Carah
On 03/07/2012 01:29 PM, Christopher Morrow wrote: > On Wed, Mar 7, 2012 at 3:45 PM, Matthew Huff wrote: >> Anyone else see a massive increase of scanning/dos with TCP source and/or >> dst port of 0? We started seeing a massive increase today creating some >> issue with our firewalls. > srs/dst of

Re: Increase of DOS attacks using TCP src and/or dst of 0

2012-03-07 Thread Christopher Morrow
On Wed, Mar 7, 2012 at 3:45 PM, Matthew Huff wrote: > Anyone else see a massive increase of scanning/dos with TCP source and/or > dst port of 0? We started seeing a massive increase today creating some > issue with our firewalls. srs/dst of 0 as measured how? (tcpdump? netflow? app logs?)

Re: Increase of DOS attacks using TCP src and/or dst of 0

2012-03-07 Thread Mike Gatti
I just scanned through the last 48 hours of logs and did not find anything. We are peering with Level3 (AS 3549) and Verizon (AS 11486). -- Michael Gatti main. 949.371.5474 (UTC -8) On Mar 7, 2012, at 12:45 PM, Matthew Huff wrote: > Anyone else see a massive increase of scanning/dos with T

Increase of DOS attacks using TCP src and/or dst of 0

2012-03-07 Thread Matthew Huff
Anyone else see a massive increase of scanning/dos with TCP source and/or dst port of 0? We started seeing a massive increase today creating some issue with our firewalls. Matthew Huff | 1 Manhattanville Rd Director of Operations | Purchase, NY 10577 OTA Management L