Classification and Analysis of Security Techniques for the User Terminal Area in the Internet Banking Service

Table 3

Security techniques for the PS/2 and USB keyboards.

Interface	Security techniques	Description
PS/2	Message hooking	Preempts keyboard data by hooking keyboard message
	Inserting the filter driver	Preempts keyboard data by inserting filter driver inside the PS/2 keyboard driver stack
	Interrupt object replacement	Preempts keyboard data by replacing the object processing interrupt related PS/2 keyboard
	IDT replacement	Preempts keyboard data by replacing the interrupt descriptor table related PS/2 keyboard
	Generating random scan code using the 0xD2 command	Disrupts keyboard data by generating random scan code using the 0xD2 command
	Generating random scan code using the keyboard internal memory	Disrupts keyboard data by generating random scan code stored in the keyboard internal memory
	Using the debug exception handler	Preempts keyboard data using the debug exception handler when accessing input and output memories or ports related to the PS/2 keyboard
USB	Inserting filter driver	Preempts keyboard data by inserting filter driver inside the USB keyboard driver stack
	Inline hooking	Preempts keyboard data by hooking function processing the USB keyboard data