Efficient Defense Decision-Making Approach for Multistep Attacks Based on the Attack Graph and Game Theory

Table 1

Strength and payoff of attack action.

No.	Description	Strength	Payoff
a1	Remote buffer overflow	0.95	3
a2	Install Trojan	0.8
a3	Steal account and crack it	0.7
a4	Send abnormal data to GIOP	0.5	2
a5	Shut down database server	0.45
a6	LPC to LSASS	0.4
a7	Oracle TNS Listener	0.35	1
a8	Ftp RHOST attack	0.3
a9	Sr-Hard blood	0.25