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Re: Slightly OT: Looking for an old domain for spam collection

  • From: Douglas Otis
  • Date: Wed Mar 28 14:26:13 2007


On Mar 28, 2007, at 11:08 AM, william(at)elan.net wrote:


On Wed, 28 Mar 2007, Tony Finch wrote:

On Wed, 28 Mar 2007, Ken Simpson wrote: 

What is particularly missing IMHO is a spoofed-BGP-route blacklist.
Anyone making any progress on that sort of thing?

completewhois has lists in various forms of bogon and hijacked networks.

http://completewhois.com/bogons/bogons_usage.htm

This list apparently does not track much of the active spoofed announcements. This is understandable, as this tracking remains a difficult task.

Only bogon list will catch some real-time hijacking and only when they are doing at the unannounced space (which does happen - see presentation at couple nanogs ago about spammers announcing full /8 and using unallocated portions; there were other cases too that did not use as large of an announcement).

The real-time hijacking (short-announcements that go away in about an hour although some do stay longer) of someone else's space or short-term announcements of unused legacy space can only be caught when you know where correct announcements should come from and until we have SIDR, there is no reliable way to do it. The way i'm testing it is by comparing where routes for where announcements come from before and setting certain time period before route is considered "adequate" (this has obvious bad implications for those changing from one ASN to another). If my project get sufficiently stable for public consumption trials I'll let you know more but from what I wrote you should get an idea on how set something like it yourself (and I think this is something similar to what others are doing too already, I'm unsure if they are making data public or not).

Some of this information is incorporated within one of our temporary lists, but not exclusively. The level of this activity is rather disconcerting. Perhaps there should be a list dedicated for this purpose for use beyond email, which appears to be the purpose of most but not all such announcements.

-Doug