Hello Justin,

Wednesday, December 10, 2003, 12:51:28 PM, you wrote:

J> On Wed, 10 Dec 2003, Christopher Kunz wrote:

>> What is the typical half-life of a spam domain? As far as I can recall
>> from my brief glimpses at the stuff in my spam folders, I have never 
>> seen that a domain was spamvertised in two different spam runs.

Christopher, the TYPICAL half-life of a spam domain is short. You have
that right. However, the nature of half-lives is that they're stastical;
some specific items will approximate the half-life, and some necessarily
will be atypical.

J> I have a 15,000 entry list of spamming domains and netblocks.  I started
J> it back in January of 2000 and hit the 15k mark last December.  I haven't
J> touched it since.  I'm still amazed at how much spam is still catches,
J> even though some of those domains are from spam runs more than 2 years
J> ago.  YMMV of course.

Examples:
uri             RM_u_27meg              /27meg\.com/i
describe        RM_u_27meg              text references likely spammer
score           RM_u_27meg              9.5   # 91s/0h of 63143 corpus
uri             RM_u_artlist            /art(?:list|market|price)\.com/i
describe        RM_u_artlist            text references known spammer
score           RM_u_artlist            9.1   # 194 spam, 0 ham, Jul 19 2003; 69s/0h 
of 63143 corpus
uri             RM_u_awayoutofdebtfast  /awayoutofdebtfast\.com/i
describe        RM_u_awayoutofdebtfast  text references known spammer 
score           RM_u_awayoutofdebtfast  9.1    # 177s/0h of 63143 corpus
uri             RM_u_BaliHotels         /\bbali.{0,30}\.com/i
describe        RM_u_BaliHotels         text references known spammer
score           RM_u_BaliHotels         12.12  # 17s/0h of 63143 corpus
uri             RM_u_biogenusa          /biogenusa\.biz/i
describe        RM_u_biogenusa          text references known spammer
score           RM_u_biogenusa          9.1    # 193s/0h of 63143 corpus
uri             RM_u_bookmanmarketing   /bookmanmarketing\.com/i
describe        RM_u_bookmanmarketing   text references known spammer
score           RM_u_bookmanmarketing   9.10  # 24s/0h of 63143 corpus
uri             RM_u_DaumNet            /daum\.net/i
describe        RM_u_DaumNet            text references known spammer
score           RM_u_DaumNet            9.00  # 52 spam, 0 ham, Oct 25 2003; 46s/0h of 
63143 corpus
uri             RM_u_dealsbytheminute   /dealsby(?:the)?(?:minute|hour)\.biz/i
describe        RM_u_dealsbytheminute   text references known spammer
score           RM_u_dealsbytheminute   9.1   # 93 spam, 0 ham, Sep 7 2003; 188s/0h of 
39283 corpus
uri             RM_u_ehostz             /\.ehostz\.org/i
describe        RM_u_ehostz             text references known spammer
score           RM_u_ehostz             9.1   # 1 spam, 0 ham, Aug 4 2003; 6s/0h of 
39283 corpus
uri             RM_u_gootle             /gootle\.us/i
describe        RM_u_gootle             text references known spammer
score           RM_u_gootle             9.1   # 23 spam, 0 ham, Sep 27 2003; 54s/0h of 
39283 corpus
uri             RM_u_HarryandDavid      /HarryandDavid\.m0\.net/i
describe        RM_u_HarryandDavid      text references known spammer
score           RM_u_HarryandDavid      5.1   # 10s/0h of 63143 corpus
uri             RM_u_hostingprod        /hostingprod\.com/i
describe        RM_u_hostingprod        text references known spammer
score           RM_u_hostingprod        9.1   # 134s/0h of 63143 corpus
uri             RM_u_justdoing          /justdoing\.biz/i
describe        RM_u_justdoing          text references known spammer
score           RM_u_justdoing          4.5   # 5 spam, 0 ham, Sep 5 2003; 37s/0h of 
39283 corpus
uri             RM_u_kdmweb             /kdmweb\.net/i
describe        RM_u_kdmweb             text references known spammer
score           RM_u_kdmweb             9.1   # 40s/0h of 63143 corpus
uri             RM_u_kecak              /kecak\.com/i
describe        RM_u_kecak              text references known spammer
score           RM_u_kecak              9.1   # 17s/0h of 63143 corpus
uri             RM_u_med12z             /\.med12z\.com/i
describe        RM_u_med12z             text references known spammer
score           RM_u_med12z             9.1   # 28 spam, 0 ham, Aug 9 2003; 30s/0h of 
39283 corpus
uri             RM_u_nanosoft           /nano-soft\.biz/i
describe        RM_u_nanosoft           text references known spammer
score           RM_u_nanosoft           9.1   # 27 spam, 0 ham, Sep 12 2003; 37s/0h of 
39283 corpus
uri             RM_u_OfferClicks        /OfferClicks\.com/i
describe        RM_u_OfferClicks        text references known spammer
score           RM_u_OfferClicks        9.1   # 489s/1h of 63143 corpus %%%???%%%
uri             RM_u_photoidcards       /photoidcards\.com/i
describe        RM_u_photoidcards       URL link might be to spam site
score           RM_u_photoidcards       9.10   # 12s/0h of 63143 corpus
uri             RM_u_pillsavings        /pillsavings?[0-9]*\.com/i
describe        RM_u_pillsavings        URL link might be to spam site
score           RM_u_pillsavings        9.10   # 130 spam, 0 ham, Sep 11 2003; 95s/0h 
of 39283 corpus
uri             RM_u_postnote           /postnote\.com/i
describe        RM_u_postnote           text references known spam source or service
score           RM_u_postnote           9.00  # 55s/0h of 63143 corpus
uri             RM_u_revclx             /revclx\.us/i
describe        RM_u_revclx             text references known spammer
score           RM_u_revclx             7.00   # 52s/0h of 63143 corpus
uri             RM_u_rs6                /rs6\.net/i
describe        RM_u_rs6                text references likely spammer
score           RM_u_rs6                1.00   # 13s/1h of 63143 corpus %%%???%%%
uri             RM_u_rxpalace           /rxpalace\.biz/i
describe        RM_u_rxpalace           text references known spammer
score           RM_u_rxpalace           7.00   # 23 spam, 0 ham, Oct 24 2003; 42s/0h 
of 39283 corpus
uri             RM_u_seven12q           /seven12q.com/i
describe        RM_u_seven12q           text contains link to known spammer
score           RM_u_seven12q           9.5   # 36 spam, 0 ham, Oct 1 2003; 59s/0h of 
39283 corpus
uri             RM_u_supersavingsonline /supersavingsonline\.biz/i
describe        RM_u_supersavingsonline text references known spammer
score           RM_u_supersavingsonline 9.5   # 50 spam, 0 ham, Oct 24 2003; 53s/0h of 
39283 corpus
uri             RM_u_tclk               /tclk\.net/i
describe        RM_u_tclk               text references known spammer
score           RM_u_tclk               9.1   # 224 spam, 0 ham, Sep 5 2003; 72s/0h of 
39283 corpus






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