Intruders - Intruders LeiChen...

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Henric Johnson 1 Intruders Slides adapted from work by Henric Johnson Blekinge Institute of Technology, Sweden Lei Chen
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2 Outline Intrude rs Intrus io n Te c hniq ue s Pa s s wo rd Pro te c tio n Pa s s wo rd S e le c tio n S tra te g ie s Intrus io n De te c tio n
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3 Intruders Thre e  c la s s e s  o f intrude rs  (ha c ke rs  o r  c ra c ke rs ): Ma s q ue ra de r Mis fe a s o r C la nde s tine  us e r
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4 Intrusion Techniques S ys te m  m a inta in a  file  tha t a s s o c ia te s  a   pa s s wo rd with e a c h a utho rize d us e r. Pa s s wo rd file  c a n b e  pro te c te d with: O ne -wa y e nc ryptio n Ac c e s s  C o ntro l 
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5 Intrusion Techniques Te c hniq ue s  fo r g ue s s ing  pa s s wo rds : Try de fa ult pa s s wo rds . Try a ll s ho rt wo rds , 1 to  3 c ha ra c te rs  lo ng . Try a ll the  wo rds  in a n e le c tro nic   dic tio na ry(60,000). C o lle c t info rm a tio n a b o ut the  us e r’s  ho b b ie s ,  fa m ily na m e s , b irthda y, e tc .
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This note was uploaded on 10/31/2009 for the course CS 661 taught by Professor Chenlei during the Fall '09 term at Sam Houston State University.

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Intruders - Intruders LeiChen...

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