Snort mailing list archives
Re: UDP 1434 - worm spoofing or not?
From: Glenn Forbes Fleming Larratt <glratt () rice edu>
Date: Sat, 25 Jan 2003 13:40:28 -0600 (CST)
On Sat, 25 Jan 2003, jai wrote:
Hi, Internet traffic of INDIA's and ASIA's network has been effected badly.....its amazing....seriously microsoft sucks.. but its fun !! :-) Well i found something new in this ... i think this worm spoofs IP address according ....below is the tcpdump output ..out which the host is ....169.254.198.47. sending repeated packets to different network...
Hold on a second here. According to the specification for DHCP (I think - can anyone quote chapter and verse, and/or RFC?), 169.254.0.0/16 is reserved for DHCP clients that don't get a lease. Is it possible that this is not deliberate spoofing per se, but a DHCP-enabled infected machine that someone plugged into your non-DHCP network? Since the traffic is UDP, it wouldn't necessarily matter that it's spoofed for the purposes of worm propagation. Has everybody got their egress filtering working ? :) Glenn Forbes Fleming Larratt Rice University Network Management glratt () rice edu ------------------------------------------------------- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
Current thread:
- UDP 1434 jai (Jan 25)
- Re: UDP 1434 -=Quequero=- (Jan 25)
- Message not available
- Re: UDP 1434 jai (Jan 25)
- Re: UDP 1434 - worm spoofing or not? Glenn Forbes Fleming Larratt (Jan 25)
- Re: UDP 1434 - worm spoofing or not? Gianluca Marcari (Jan 25)
- Re: UDP 1434 - worm spoofing or not? kris carlier (Jan 27)
- Re: UDP 1434 jai (Jan 25)
- <Possible follow-ups>
- RE: UDP 1434 Steven Rudolph (Jan 25)
- Fw: UDP 1434 jai (Jan 25)
- RE: UDP 1434 Counselman, Chris Contractor/Sverdrup (Jan 27)