$1.$fea si$.$ Start

$2.$push e$$

$3.$pop ecx

$4.$mov sp$.0682$;

$5.$Decrypt:

$6.$xor $[$si$],$si

$7.$xor $[$si$].$sp

$8.$swap eax, ebx

$9.$swap ebx, eax

$10.$inc si

$11.$dec sp

$12.$jnz Decrypt;

$13....$

$14.$Start:

Please answer the following questions:

$1).$ Which kinds of virus types does it belong to$?$ List all you can think of$.$

$2).$ Codes in which lines could be used as its virus signature?

$3).$ How many encryption keys are used in this possible virus?

$4).$ Does this program have the anti$-$debug feature? Why?

$5).$ What could be the best way to detect this possible virus?

E

Last saved $6$:$56$:$37$ PM

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$6).$ Why do hackers seldom use Java to write malware? List all the reasons you can think of