main함수다. loc_140001106 함수에서 입력값을 비교하는 거 같다.
.text:0000000140001000 sub_140001000 proc near ; CODE XREF: main+4E↓p
.text:0000000140001000
.text:0000000140001000 var_18 = dword ptr -18h
.text:0000000140001000 arg_0 = qword ptr 8
.text:0000000140001000
.text:0000000140001000 mov [rsp+arg_0], rcx
.text:0000000140001005 sub rsp, 18h
.text:0000000140001009 mov [rsp+18h+var_18], 0
.text:0000000140001010 jmp short loc_14000101A
.text:0000000140001012 ; ---------------------------------------------------------------------------
.text:0000000140001012
.text:0000000140001012 loc_140001012: ; CODE XREF: sub_140001000:loc_140001053↓j
.text:0000000140001012 mov eax, [rsp+18h+var_18]
.text:0000000140001015 inc eax
.text:0000000140001017 mov [rsp+18h+var_18], eax
.text:000000014000101A
.text:000000014000101A loc_14000101A: ; CODE XREF: sub_140001000+10↑j
.text:000000014000101A movsxd rax, [rsp+18h+var_18]
.text:000000014000101E cmp rax, 12h
.text:0000000140001022 jnb short loc_140001055
.text:0000000140001024 movsxd rax, [rsp+18h+var_18]
.text:0000000140001028 mov rcx, [rsp+18h+arg_0]
.text:000000014000102D movzx eax, byte ptr [rcx+rax]
.text:0000000140001031 lea rcx, byte_140003020
.text:0000000140001038 movzx eax, byte ptr [rcx+rax]
.text:000000014000103C movsxd rcx, [rsp+18h+var_18]
.text:0000000140001040 lea rdx, unk_140003000
.text:0000000140001047 movzx ecx, byte ptr [rdx+rcx]
.text:000000014000104B cmp eax, ecx
.text:000000014000104D jz short loc_140001053
.text:000000014000104F xor eax, eax
.text:0000000140001051 jmp short loc_14000105A
.text:0000000140001053 ; ---------------------------------------------------------------------------
.text:0000000140001053
.text:0000000140001053 loc_140001053: ; CODE XREF: sub_140001000+4D↑j
.text:0000000140001053 jmp short loc_140001012
.text:0000000140001055 ; ---------------------------------------------------------------------------
.text:0000000140001055
.text:0000000140001055 loc_140001055: ; CODE XREF: sub_140001000+22↑j
.text:0000000140001055 mov eax, 1
.text:000000014000105A
.text:000000014000105A loc_14000105A: ; CODE XREF: sub_140001000+51↑j
.text:000000014000105A add rsp, 18h
.text:000000014000105E retn
.text:000000014000105E sub_140001000 endp
비교하는 값들을 차례대로 발견할 수 있다.
mov [rsp+arg_0], rcx
sub rsp, 18h
mov [rsp+18h+var_18], 0
jmp short loc_14000101A
위 어셈을 통해 반복문이 수행되고 있음을 알 수 있다.