??????????? ~spam???????????~

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spam???

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???spam???????

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• PC????????????????????
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???spam???????

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• SpamBayes,POPFile,bayespam,Mozilla Spam
  Filtering,BOGOFILTER,BkASPil,bsfilter,ifile,PASP,s
  pamoracle,Spam Assassin,Annoyance Filter,Bspam

9
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• 2??????A,B???????,A?6?????,B?2???????

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?????

• BayoNet
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????????????????,??????

• Bayonet
• Windows?
• http//www.ht.sfc.keio.ac.jp/ryo/a.exe
• Linux?
• http//www.ht.sfc.keio.ac.jp/ryo/a.tar.gz

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????1

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????????????????????

1. spam???????
2. Bayonet???spam????????????????????????
3. ?????????????spam?????????

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?????
I have a pen.
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spam???????????????

• Free
• poker
• casino
• advertisement
• !!!!
• ??

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????????????

• ???????????????????,??????
• spam?????
• http//www.ht.sfc.keio.ac.jp/ryo/b.csv

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?????????????

• ???????????????????,??????
• spam?????
• http//www.ht.sfc.keio.ac.jp/ryo/b.csv

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spam?????

• 5???????Free????????spam??????

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????????????????????

1. spam???????
2. Bayonet???spam????????????????????????
3. ?????????????spam?????????

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Bayonet???

• Execute without license key???
• ??????15?????????????(TOT)
• ????SFC??????????????????

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Wizard?Model Construction Wizard ...
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DST Type FileDSTSearch algorithm Tree
SelectionInformation Criteria C4.5
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??????CSV???????
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Next
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has parents??SPAM?????????
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Finish
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Edit?Show All Monitors
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????????,CPT??????????...
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isSpam?????,CPT??????????...
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?????????spam????????
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spam?????
90
10
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?????????spam????????
poker
advertisement
casino
free
isSpam?
90?spam??????
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????????????????????

1. spam???????
2. Bayonet???spam????????????????????????
3. ?????????????spam?????????

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??????????????,?????????1.0????(isSpam??)
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spam????????????????????PUSH!!
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spam????????????????!!
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SpamAssasin??????
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SpamAssasin??

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????spam???????
IMAP??? SpamAssasin??????
RG?
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??????????????
IMAP??? SpamAssasin??????
IMAP???
???????spam???????? ?????
RG?
54
????????????

• 50?spam????
• ace-spam-1_at_ht.sfc.keio.ac.jp
• 1000??spam????
• ace-spam-2_at_ht.sfc.keio.ac.jp

• 1000??spam,1500??ham(??????)????
• ace-spam-3_at_ht.sfc.keio.ac.jp

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IMAP????????????

• ???????????????IMAP???????????

IMAP??? taro.ht.sfc.keio.ac.jp
???ID ace
????? imap
???? CRAM-MD5
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IMAP????????????

• ?????????????????????SPAM???

????????????????????
57
??????
ace-spam-1_at_ht.sfc.keio.ac.jp??
spam???????? ??????
spam???????????
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??

• 50?spam????
• ace-spam-1_at_ht.sfc.keio.ac.jp
• 1000??spam????
• ace-spam-2_at_ht.sfc.keio.ac.jp
• 1000??spam,1500??ham(??????)????
• ace-spam-3_at_ht.sfc.keio.ac.jp

IMAP??? taro.ht.sfc.keio.ac.jp
???ID ace
????? imap
???? CRAM-MD5
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