8/8/2019 Intrusion Detection & Intrusion Prevention Systems
1/26
Z`^a_[ZW`WU`[Z
Z`^a_[Z^WbWZ`[Z
_`W_
-ff-fffffffffffff
n
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
2/26
[email protected]@
fn
n
$9nn
fnf
f$9
fnn,
fn%,n
fn
@f,
f9
fn%n
@nffnn
f$9
f$9
9fnn
ff9
f nf%$9
,
ff
nff
f
-f nf%-$-9
nn-f$9
@
f9ff-f
f9ff
f-f
@nf9
[email protected],ff
[email protected],f
@[email protected],
[email protected],
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
3/26
[email protected],
Jn
Jnf
fnff
9ff
nffnf
fnf
9ffnf
@fn
fn%
@fffnf
,fnn
nf
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
4/26
9f-fJf
nfn,n f 9 @f,f
n,ff9fnnfnff
fn [email protected]
n n nf n nf n ffn fn nfff nnffn
ffnnfffffnnJ
,fnfnnfnfnnf
f f # nf ffn nf
ffn#fnf nfnf
f
n%fnffnf
@ f n n f
nnfnnfffffff
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
5/26
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
6/26
$9nn
fnf$9 [email protected]
f
O fnffO -fffnfnnff$9n
n
f$9$9nfnn
O ff n n f f ff ff nf
O n f f n n n fffn
O f n nf fn fn f f f f$ff fn %fn
9
nfnfn
f$9
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
7/26
fnn,
[email protected]
ff
fn%,n
f n fn f fn $n fn
fnffnnfn
fffn ffff ff
fn ffn nnf n
fnnffn
fff fffJfffffnf
fffffffnfnf
f f f ff nffnn nf n
ffnffnfffnfffnnfn
nffnffn ff
[email protected]
ffffff nf
nf
n nnf ffn nf fn
nnfffnffnfnffnf
f f f f n f n f f
ffn
fn
f n f f f f- f
f ffff
n f f f f fnf ffn ff
nfnfnf
fff
@fffnffnfnff
fnf
ffnffnffnfnfffff
nfnnfnfffffnn
nf nnfnff
fff
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
8/26
ffnfffffffffffn
nffnfnfffnf
@f,
@ fn fn ff f f
nf n @ f nn n n f
ffnfnnfnn
nfnfnfffnf f
ff f @ f nf
nfffnnfnfnff
fff $nnf
f9
@ n f n f ffn f n nf
fn f nn f f fffffnffnffnf
nnff ff nn fnfffn
[email protected]
ffnnnffnfnff
nnfn
fn%n
nnfnfnffnnfff n
[email protected] nff
fffffn nfffnfnn
ffnn
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
9/26
@nffnn
@fnffnnnffff
ffff
f$9,9nf [email protected] nffffn
n fffffnffffn
@fn ffffnfnffnfnnfffffff
f f fn @fffnfffn f fn
ffn f n f f fn f fn fn n f
fff
f$9
fnffffnfffnfnfn
n f fn ff fnf n
fn - f fn f n ffn n f
fnfnnffnffnnffn
ffffnnffnffn
9fnn
9fnnfnnfffn
fnf ff f fn fn f f f n
nfn ffff n [email protected] ffn
nnf nf nfffn nfff
ff fnfnnfff
fffnnfffnn
ffnfnfn nfnnffnff
n n ff ff n f f
[email protected]
[email protected]
f nfnf ffff fn
fff
9 ffn nf ffffn%
, f f f fff ffn %9 f
f
9 n nf n ff ffn f n %ffn
nf fffnffffn
nffffn
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
10/26
ff9
n%nffnfnfff
f nf fn n f f ff
nfn
9%9ffffnfffn
fn fDf9 fnf
fn f ffnf# nfffn
fnnfffnnfnn
f fnn 9f f fnf f ffn
nffnnfnfnf
f f9nf fn f f nfn
nnnfffnfffn9nnff
fn f fnf f f 9 nf fnnfffn f fn f f n ffn f
fff
n fnf nf f n
$ % $ 9 f -f n $
%-$-9
@,ffnnff9fn
n
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
11/26
f n f % $
9fffnffnnff n
9 f n f
n
O nnfnO fffffnfnfnO nfffnn fffO ffnfnfnf
fnfn
,
nfffffnnnnf
nn f f nffnn @
ff f n nf f nf
[email protected]
O 9ffnfn
O $fnnfn
O f
O nfnnO ,f n nn nf %f
nff %ffnn f n%f
nnffn
O [email protected] [email protected] nn f fn f n % f
nff#[email protected]
ff%fnfff%[email protected]
O @ fffnfnnff n
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
12/26
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
13/26
nff
nff fn nnn
nff nn n
f-fn
nffnfnff
O Df @9fD9 nn n f nn @9fD9
O 9 nf n n nf f ffn ff
f fnf nff f fnfff
f fn ff f n nffn
f%9
fnfff
O nffnnfO ffffffffn
[email protected]
ffnn
O DnO fffn9#O fnnf
fnnff fnnf
nnffff
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
14/26
f
fffffffn
nfnffn
O fnff#fO fnnfO fnnfnO fnfnfnO nfffO nfO fnnffO fnO nfffnfO 9nnnffO nffnffO 9ffO 9f$
n n nf fn ff nf
nf#f
fffnfffff f
ffff fffnff f
ffnfnf f f
ffnf f f f nf n f
f
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
15/26
-fnf%-$
-9
-f [email protected]
[email protected]
ffffnfnnf
[email protected]
n - $ -9 f f f f f f
f-ffnffnff
-f n%- ff
f ffn ff nf nn f
ffffffnffn
ffffnfn
O Dffnn Jffnnf ffn fnf
ffnnf
O f $f n @ ffn [email protected] f$nf ffnnf
nf
- f f fn nf f n
fnf
-$-9fnffffn
n f f fn f f
nn f f f nf f fn n f
[email protected]
fnnfnnfI9-nffn
nI9-
nfnfffff
n
O 9fnfn%ffnO nn%fffnO f%fnO fnfffn
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
16/26
nn-f$9
@ffnfn n-f
@fffnn-nfnff
n nff f - nf #
f
ff-$-9fnfffn,
ffffnf,n9ffnnffnff
f
- fn fnn fnfnnffff
nf nfn ff nnf
fnfnnfnnff
nn-
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
17/26
@
f9ff-f
f9ff
@fffffffnff nf
nfff ffnfnffnnnn
nnffffffffnf
f f f nn nf nf n
fffnfn
O [email protected]@fnfnfffnf f- n f ,9ff f
fffnffnnffn
O f ff fn f f f n fnfnffffnff
O 9n If f f nf n fn nf nf
O @f 9 f fff f [email protected]
O -,fnffffnnnffnffff
fnfffff
n fff [email protected]
ffnnfnfJffffnfnf
fnnfnffffnn%nf
ffffff fnffff
ffffnf
f-f
f f n f n f n
nnf nnfnfnfnnf
ff f fn f nf f n nfn ff
nnff
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
18/26
nffff
O --fnf f nffnnffnn
n - n nf f n f
fn
O nfn [email protected] ff
nfn9fn-I9- fffnnf
ff-fffn
O fn nf n ,f f f n f nf f fn nnfffnf,
nfffn nfnf
f n f f f fnf
nfn
O fffnfffnfnffnf ffnnf f
O Dn ffn @ ffn n f ff
O 9-nfffff-nfnfnn
4 nfnffffff4 @nnffnfnfff4 fnf4 @ ffff f fff
fnfnnffn
O - f @- n nfn ffn ff
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
19/26
@[email protected]$9 n$9nff n
@nffnfff
[email protected],[email protected]@, ffnnf f
nfnf fnff[email protected]
nf f nf f n n nf f
nnfnfnfnf
ff fnnnfnnff
fffff
[email protected],f
[email protected],nff
O fnffnnO fffffffO n$nf
[email protected],fnfffnf
O JnnfffnO Iff%I9-nfnnfnfnn
[email protected],fff fnfnfJ-fnnf ff
n f ff f f nf
Df fnf f fnf n f
[email protected], fffff
[email protected], f nf f f n f nf f
ffffI9-nf
[email protected],ff
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
20/26
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
21/26
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
22/26
Jnnf n%Jf
fnnfnnfJnf
ffn
fn f nf @f ff fnf
ffffffff
n
Jnf
O 9 nff f f f ffn f nnfJ-fffn @fnnf
nffffnffffnfnfffff9nnf
f f f n f
f
O fnff,%,, f f n ffn f f
ff f n f f f ,f
J-ffnffnff
fffff
O ff n 9 ff ff fn f f f ff9nnfff
ffnnfffn
O nfnfn fffnfnf f ff
nf f n f f
f nf nffnnf
nfffnfnfnf nf
Jf n,[email protected]
nnf-n--J
Jfn,nfIf,O
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
23/26
8/8/2019 Intrusion Detection & Intrusion Prevention Systems
24/26
@fn
fn%
ffnfffnfnfffnf
fnnfnnfn%@[email protected]
ffn f nf ffn f f f n f f
@nffffnnfnn
O nffn nfnnffnffnffnn nffnffnffn
nffnnfffn nnf-
n
O ,fn fn ffn n f f fn f nf n nf nn f n f
ffffnnfnnfnff fnnfnf
fnnfffnf,[email protected]@
,9n
fnffff nfn ffn
ff f nf n f f f fnff fn
ffn @ ffn f fff nn nf
fDn;nn
@fffnf
[email protected]
fffnnffnfnfff
f f ffn f nf f f fn f
ffnfnfffffnf
f nn f @f f f f
[email protected]
[email protected] ffnn @f nf
[email protected] nnfff
nf f n fJnfnff fn ffn @ff
[email protected]
[email protected]@9D9-ffnnn
,fnn
fnf ffffnnfnf
[email protected]$nf
nfffnfnnfn
8/8/2019 Intrus
