Function at 0x140048b70
Capabilities:
Encrypt data using rc4 ksa
Resolve function by parsing pe exports

Disassembly:
mov qword [rsp + 0x20], r9
mov qword [rsp + 0x18], r8
mov qword [rsp + 0x10], rdx
push rbx
push rbp
push rdi
push r12
push r13
push r14
sub rsp, 0x498
lea rdx, [rsp + 0x40]
mov dword [rsp + 0x5c], 0xff
mov rbx, rcx
xor r12d, r12d
call fcn.140048740
test rax, rax
je 0x1400497ba
mov eax, dword [rbx + 4]
mov r13d, dword [rsp + 0x48]
mov r14d, dword [rsp + 0x44]
mov edi, dword [rsp + 0x40]
mov dword [rsp + 0x78], eax
cdq
mov r8d, eax
mov eax, dword [rsp + 0x5c]
xor r8d, edx
mov dword [rsp + 0x4f8], eax
sub r8d, edx
mov dword [rbx + 4], r8d
cmp r13d, 0xc
jne 0x140048c00
cmp edi, 0x18
jge 0x140048c13
lea ecx, [r14 - 0x26]
mov eax, 0x55555556
imul ecx
mov r12d, edx
shr r12d, 0x1f
add r12d, edx
jmp 0x140048c13
cmp edi, 0x10
jge 0x140048c13
mov r12d, r14d
sub r12d, r13d
sub r12d, 0xe
sar r12d, 2
mov ecx, dword [rbx]
xor eax, eax
cmp dword [rsp + 0x58], eax
setne al
add eax, 3
mov dword [rbx + 8], eax
test ecx, ecx
js 0x1400497ba
jne 0x140048c3b
lea r9d, [rcx*4]
mov r10d, r9d
jmp 0x140048c60
mov eax, 0x7fffffff
cdq
idiv ecx
cmp eax, 4
jl 0x1400497ba
lea r9d, [rcx*4]
mov r10d, r9d
test r9d, r9d
js 0x1400497ba
test r8d, r8d
js 0x1400497ba
je 0x140048c7d
mov eax, 0x7fffffff
cdq
idiv r8d
cmp r10d, eax
jg 0x1400497ba
test ecx, ecx
je 0x140048c9b
mov eax, 0x7fffffff
cdq
idiv ecx
cmp eax, 4
jl 0x1400497ba
test r9d, r9d
js 0x1400497ba
test r8d, r8d
je 0x140048cb2
mov eax, 0x7fffffff
cdq
idiv r8d
cmp r9d, eax
jg 0x1400497ba
imul ecx, r8d
shl ecx, 2
movsxd rcx, ecx
call qword [sym.imp.api_ms_win_crt_heap_l1_1_0.dll_malloc]
mov qword [rsp + 0x88], rax
mov rbp, rax
test rax, rax
je 0x1400497ba
mov qword [rsp + 0x4d0], rsi
mov qword [rsp + 0x490], r15
cmp edi, 0x10
jge 0x140049091
xor edi, edi
test r12d, r12d
je 0x1400497ad
cmp r12d, 0x100
jg 0x1400497ad
test r12d, r12d
jle 0x140048e49
mov rax, qword [rbx + 0xb8]
xor r15d, r15d
movsxd rbp, r12d
nop dword [rax]
mov rcx, qword [rbx + 0xc0]
cmp rax, rcx
jb 0x140048d47
cmp dword [rbx + 0x30], edi
je 0x140048d6d
mov rcx, rbx
call fcn.14003ffb0
mov rax, qword [rbx + 0xb8]
mov rcx, qword [rbx + 0xc0]
movzx edx, byte [rax]
lea rsi, [r15*4]
inc rax
mov byte [rsp + rsi + 0x92], dl
mov qword [rbx + 0xb8], rax
mov r8, rsi
cmp rax, rcx
jae 0x140048d80
jmp 0x140048d9b
lea rsi, [r15*4]
mov byte [rsp + rsi + 0x92], dil
mov r8, rsi
cmp dword [rbx + 0x30], edi
je 0x140048dc3
mov rcx, rbx
call fcn.14003ffb0
mov rax, qword [rbx + 0xb8]
mov rcx, qword [rbx + 0xc0]
movzx edx, byte [rax]
inc rax
mov qword [rbx + 0xb8], rax
mov byte [rsp + rsi + 0x91], dl
cmp rax, rcx
jae 0x140048dcb
movzx ecx, byte [rax]
inc rax
mov qword [rbx + 0xb8], rax
jmp 0x140048df0
mov byte [rsp + r8 + 0x91], dil
cmp dword [rbx + 0x30], edi
je 0x140048dee
mov rcx, rbx
call fcn.14003ffb0
mov rax, qword [rbx + 0xb8]
movzx ecx, byte [rax]
inc rax
mov qword [rbx + 0xb8], rax
jmp 0x140048df0
xor cl, cl
mov byte [rsp + rsi + 0x90], cl
cmp r13d, 0xc
je 0x140048e2d
cmp rax, qword [rbx + 0xc0]
jae 0x140048e12
inc rax
mov qword [rbx + 0xb8], rax
jmp 0x140048e2d
cmp dword [rbx + 0x30], edi
je 0x140048e2d
mov rcx, rbx
call fcn.14003ffb0
inc qword [rbx + 0xb8]
mov rax, qword [rbx + 0xb8]
inc r15
mov byte [rsp + rsi + 0x93], 0xff
cmp r15, rbp
jl 0x140048d20
mov rbp, qword [rsp + 0x88]
xor eax, eax
lea rsi, [rbx + 0xb8]
cmp r13d, 0xc
setne al
add eax, 3
imul eax, r12d
sub r14d, eax
sub r14d, r13d
sub r14d, 0xe
jns 0x140048e78
mov rax, qword [rbx + 0xc0]
mov qword [rsi], rax
jmp 0x140048eaa
cmp qword [rbx + 0x10], rdi
je 0x140048ea4
mov ecx, dword [rbx + 0xc0]
sub ecx, dword [rsi]
cmp ecx, r14d
jge 0x140048ea4
mov rax, qword [rbx + 0xc0]
sub r14d, ecx
mov rcx, qword [rbx + 0x28]
mov edx, r14d
mov qword [rsi], rax
call qword [rbx + 0x18]
jmp 0x140048eaa
movsxd rax, r14d
add qword [rsi], rax
mov r13d, dword [rsp + 0x40]
cmp r13d, 4
jne 0x140048ec0
mov r15d, dword [rbx]
inc r15d
shr r15d, 1
jmp 0x140048ecd
cmp r13d, 8
jne 0x1400497ad
mov r15d, dword [rbx]
mov eax, dword [rbx + 4]
neg r15d
and r15d, 3
xor r12d, r12d
mov edx, eax
test eax, eax
jle 0x1400496be
nop dword [rax]
nop dword [rax + rax]
mov r8d, dword [rbx]
xor r14d, r14d
test r8d, r8d
jle 0x140049049
nop
mov r9, qword [rsi]
cmp r9, qword [rbx + 0xc0]
jae 0x140048f18
movzx ecx, byte [r9]
inc r9
mov qword [rsi], r9
jmp 0x140048f3a
cmp dword [rbx + 0x30], 0
je 0x140048f38
mov rcx, rbx
call fcn.14003ffb0
mov rax, qword [rsi]
mov r8d, dword [rbx]
movzx ecx, byte [rax]
lea r9, [rax + 1]
mov qword [rsi], r9
jmp 0x140048f3a
xor cl, cl
xor r10d, r10d
movzx eax, cl
cmp r13d, 4
jne 0x140048f50
mov r10d, eax
and r10d, 0xf
shr eax, 4
movsxd rcx, edi
lea rdx, [rax*4]
movzx eax, byte [rsp + rdx + 0x90]
inc edi
mov byte [rcx + rbp], al
movzx eax, byte [rsp + rdx + 0x91]
movsxd rcx, edi
inc edi
mov byte [rcx + rbp], al
movzx eax, byte [rsp + rdx + 0x92]
movsxd rcx, edi
inc edi
mov byte [rcx + rbp], al
movsxd rax, edi
inc edi
mov byte [rax + rbp], 0xff
lea eax, [r14 + 1]
cmp eax, r8d
je 0x140049049
cmp r13d, 8
jne 0x140048ff8
cmp r9, qword [rbx + 0xc0]
jae 0x140048fc4
movzx ecx, byte [r9]
lea rax, [r9 + 1]
mov r9d, r8d
mov qword [rsi], rax
mov r8d, dword [rbx]
movzx r10d, cl
jmp 0x140048ffb
cmp dword [rbx + 0x30], 0
je 0x140048fea
mov rcx, rbx
call fcn.14003ffb0
mov rax, qword [rsi]
movzx ecx, byte [rax]
inc rax
mov qword [rsi], rax
mov r8d, dword [rbx]
mov r9d, r8d
movzx r10d, cl
jmp 0x140048ffb
xor cl, cl
mov r9d, r8d
mov r8d, dword [rbx]
movzx r10d, cl
jmp 0x140048ffb
mov r9d, r8d
movsxd rcx, edi
lea rdx, [r10*4]
movzx eax, byte [rsp + rdx + 0x90]
inc edi
add r14d, 2
mov byte [rcx + rbp], al
movzx eax, byte [rsp + rdx + 0x91]
movsxd rcx, edi
inc edi
mov byte [rcx + rbp], al
movzx eax, byte [rsp + rdx + 0x92]
movsxd rcx, edi
inc edi
mov byte [rcx + rbp], al
movsxd rax, edi
inc edi
mov byte [rax + rbp], 0xff
cmp r14d, r9d
jl 0x140048f00
cmp qword [rbx + 0x10], 0
je 0x140049075
mov ecx, dword [rbx + 0xc0]
sub ecx, dword [rsi]
cmp ecx, r15d
jge 0x140049075
mov rax, qword [rbx + 0xc0]
mov edx, r15d
sub edx, ecx
mov qword [rsi], rax
mov rcx, qword [rbx + 0x28]
call qword [rbx + 0x18]
jmp 0x14004907b
mov eax, r15d
add qword [rsi], rax
mov eax, dword [rbx + 4]
inc r12d
mov edx, eax
cmp r12d, eax
jl 0x140048ef0
jmp 0x1400496be
sub r14d, dword [rsp + 0x48]
lea rsi, [rbx + 0xb8]
xor r11d, r11d
xor r8d, r8d
xor eax, eax
mov dword [rsp + 0x28], r11d
xor r9d, r9d
mov dword [rsp + 0x20], r11d
xor r12d, r12d
mov dword [rsp + 0x24], r11d
xor r13d, r13d
mov dword [rsp + 0x2c], r8d
xor r15d, r15d
mov dword [rsp + 0x30], eax
sub r14d, 0xe
mov dword [rsp + 0x4f0], r9d
jns 0x1400490e3
mov rax, qword [rbx + 0xc0]
mov qword [rsi], rax
jmp 0x140049126
cmp qword [rbx + 0x10], rax
je 0x140049120
mov ecx, dword [rbx + 0xc0]
sub ecx, dword [rsi]
mov qword [rsp + 0x80], rsi
cmp ecx, r14d
jge 0x140049120
mov rax, qword [rbx + 0xc0]
sub r14d, ecx
mov rcx, qword [rbx + 0x28]
mov edx, r14d
mov qword [rsi], rax
call qword [rbx + 0x18]
mov r9d, r12d
mov r11d, r12d
mov r8d, r12d
jmp 0x14004912e
movsxd rax, r14d
add qword [rsi], rax
mov qword [rsp + 0x80], rsi
cmp edi, 0x18
jne 0x14004913b
mov eax, dword [rbx]
lea r10d, [rax + rax*2]
jmp 0x14004914b
cmp edi, 0x10
jne 0x140049148
mov r10d, dword [rbx]
add r10d, r10d
jmp 0x14004914b
xor r10d, r10d
mov eax, dword [rsp + 0x54]
neg r10d
mov ecx, dword [rsp + 0x50]
and r10d, 3
mov r14d, dword [rsp + 0x4c]
mov dword [rsp + 0x38], r10d
cmp edi, 0x18
jne 0x140049177
lea ecx, [rdi - 0x17]
mov r14d, r12d
mov edi, r12d
jmp 0x14004933f
cmp edi, 0x20
jne 0x1400491b0
cmp eax, 0xff
jne 0x1400491b0
cmp ecx, 0xff00
jne 0x1400491b0
cmp r14d, 0xff0000
jne 0x1400491b0
mov r10d, dword [rsp + 0x58]
cmp r10d, 0xff000000
jne 0x1400491ce
lea ecx, [rdi - 0x1e]
mov r14d, r12d
mov edi, r12d
jmp 0x14004933f
test r14d, r14d
je 0x1400497ad
test ecx, ecx
je 0x1400497ad
test eax, eax
je 0x1400497ad
mov r10d, dword [rsp + 0x58]
mov ecx, r14d
call fcn.1400486d0
mov edx, r14d
mov ecx, r14d
mov r14d, dword [rsp + 0x50]
and ecx, 0x55555555
shr edx, 1
and edx, 0x55555555
lea r11d, [rax - 7]
add edx, ecx
mov dword [rsp + 0x28], r11d
mov ecx, edx
and edx, 0x33333333
shr ecx, 2
and ecx, 0x33333333
add ecx, edx
mov edx, ecx
shr edx, 4
add edx, ecx
mov ecx, r14d
and edx, 0xf0f0f0f
mov eax, edx
shr eax, 8
add edx, eax
mov eax, edx
shr eax, 0x10
add eax, edx
movzx r12d, al
call fcn.1400486d0
mov r15d, dword [rsp + 0x54]
mov edx, r14d
shr edx, 1
mov ecx, r14d
and edx, 0x55555555
and ecx, 0x55555555
add edx, ecx
lea edi, [rax - 7]
mov ecx, edx
mov dword [rsp + 0x20], edi
and edx, 0x33333333
shr ecx, 2
and ecx, 0x33333333
add ecx, edx
mov edx, ecx
shr edx, 4
add edx, ecx
mov ecx, r15d
and edx, 0xf0f0f0f
mov eax, edx
shr eax, 8
add edx, eax
mov eax, edx
shr eax, 0x10
add eax, edx
movzx r13d, al
call fcn.1400486d0
mov edx, r15d
mov ecx, r15d
shr edx, 1
and ecx, 0x55555555
and edx, 0x55555555
add edx, ecx
lea r14d, [rax - 7]
mov ecx, edx
mov dword [rsp + 0x24], r14d
and edx, 0x33333333
shr ecx, 2
and ecx, 0x33333333
add ecx, edx
mov edx, ecx
shr edx, 4
add edx, ecx
and edx, 0xf0f0f0f
mov eax, edx
shr eax, 8
add edx, eax
mov eax, edx
shr eax, 0x10
add eax, edx
movzx eax, al
mov dword [rsp + 0x30], eax
mov ecx, r10d
call fcn.1400486d0
mov ecx, r10d
mov edx, r10d
shr edx, 1
and ecx, 0x55555555
and edx, 0x55555555
add edx, ecx
lea r8d, [rax - 7]
mov ecx, edx
mov dword [rsp + 0x2c], r8d
and edx, 0x33333333
shr ecx, 2
and ecx, 0x33333333
add ecx, edx
mov edx, ecx
shr edx, 4
add edx, ecx
and edx, 0xf0f0f0f
mov eax, edx
shr eax, 8
add edx, eax
mov eax, edx
shr eax, 0x10
add eax, edx
movzx r15d, al
xor ecx, ecx
mov eax, dword [rbx + 4]
mov edx, eax
mov qword [rsp + 0x60], rcx
mov dword [rsp + 0x3c], 0
test eax, eax
jle 0x1400496be
mov eax, r11d
neg eax
mov dword [rsp + 0x68], eax
mov eax, edi
neg eax
mov dword [rsp + 0x6c], eax
mov eax, r14d
neg eax
mov dword [rsp + 0x70], eax
mov eax, r8d
neg eax
mov dword [rsp + 0x74], eax
nop dword [rax]
mov eax, dword [rbx]
movsxd rdx, r9d
test rcx, rcx
je 0x1400494bb
xor r14d, r14d
test eax, eax
jle 0x14004965f
mov rcx, qword [rsi]
lea rdi, [rdx + rbp]
mov rbp, qword [rsp + 0x60]
nop word [rax + rax]
mov rax, qword [rbx + 0xc0]
cmp rcx, rax
jae 0x1400493c4
movzx edx, byte [rcx]
inc rcx
jmp 0x1400493e3
cmp dword [rbx + 0x30], 0
je 0x1400493f6
mov rcx, rbx
call fcn.14003ffb0
mov rax, qword [rsi]
movzx edx, byte [rax]
lea rcx, [rax + 1]
mov rax, qword [rbx + 0xc0]
mov qword [rsi], rcx
mov byte [rdi + 2], dl
cmp rcx, rax
jae 0x1400493fa
movzx edx, byte [rcx]
inc rcx
jmp 0x140049419
mov byte [rdi + 2], 0
cmp dword [rbx + 0x30], 0
je 0x14004942f
mov rcx, rbx
call fcn.14003ffb0
mov rax, qword [rsi]
movzx edx, byte [rax]
lea rcx, [rax + 1]
mov rax, qword [rbx + 0xc0]
mov qword [rsi], rcx
mov byte [rdi + 1], dl
cmp rcx, rax
jae 0x140049433
movzx edx, byte [rcx]
inc rcx
mov qword [rsi], rcx
jmp 0x140049452
mov byte [rdi + 1], 0
cmp dword [rbx + 0x30], 0
je 0x140049450
mov rcx, rbx
call fcn.14003ffb0
mov rax, qword [rsi]
movzx edx, byte [rax]
lea rcx, [rax + 1]
mov qword [rsi], rcx
jmp 0x140049452
xor dl, dl
mov byte [rdi], dl
cmp rbp, 2
jne 0x14004948f
cmp rcx, qword [rbx + 0xc0]
jae 0x14004946e
movzx edx, byte [rcx]
inc rcx
mov qword [rsi], rcx
jmp 0x140049491
cmp dword [rbx + 0x30], 0
je 0x14004948b
mov rcx, rbx
call fcn.14003ffb0
mov rax, qword [rsi]
movzx edx, byte [rax]
lea rcx, [rax + 1]
mov qword [rsi], rcx
jmp 0x140049491
xor dl, dl
jmp 0x140049491
mov dl, 0xff
add dword [rsp + 0x4f0], 4
inc r14d
movzx eax, dl
or dword [rsp + 0x4f8], eax
mov byte [rdi + 3], dl
add rdi, 4
cmp r14d, dword [rbx]
jl 0x1400493b0
jmp 0x140049657
xor edi, edi
mov dword [rsp + 0x34], edi
test eax, eax
jle 0x14004965f
mov esi, dword [rsp + 0x4f8]
lea r14, [rdx + rbp]
mov ebp, dword [rsp + 0x40]
mov rcx, rbx
call fcn.1400401b0
cmp ebp, 0x10
jne 0x1400494e9
mov edx, eax
jmp 0x1400494fe
mov rcx, rbx
mov edi, eax
call fcn.1400401b0
mov edx, eax
shl edx, 0x10
add edx, edi
mov edi, dword [rsp + 0x34]
mov r11d, dword [rsp + 0x28]
mov r8d, edx
and r8d, dword [rsp + 0x4c]
mov ecx, r11d
mov eax, r8d
sar eax, cl
mov ecx, dword [rsp + 0x68]
shl r8d, cl
mov ecx, r12d
test r11d, r11d
cmovns r8d, eax
mov r9d, r8d
cmp r12d, 8
jae 0x140049540
nop dword [rax]
mov eax, r8d
sar eax, cl
add ecx, r12d
add r9d, eax
cmp ecx, 8
jl 0x140049530
mov byte [r14], r9b
mov r8d, edx
and r8d, dword [rsp + 0x50]
mov r9d, dword [rsp + 0x20]
mov eax, r8d
mov ecx, r9d
sar eax, cl
mov ecx, dword [rsp + 0x6c]
shl r8d, cl
mov ecx, r13d
test r9d, r9d
cmovns r8d, eax
mov r9d, r8d
cmp r13d, 8
jae 0x140049582
mov eax, r8d
sar eax, cl
add ecx, r13d
add r9d, eax
cmp ecx, 8
jl 0x140049572
mov r10d, dword [rsp + 0x30]
mov r8d, edx
and r8d, dword [rsp + 0x54]
mov eax, r8d
mov byte [r14 + 1], r9b
mov r9d, dword [rsp + 0x24]
mov ecx, r9d
sar eax, cl
mov ecx, dword [rsp + 0x70]
shl r8d, cl
mov ecx, r10d
test r9d, r9d
cmovns r8d, eax
mov r9d, r8d
cmp r10d, 8
jae 0x1400495d0
nop word [rax + rax]
mov eax, r8d
sar eax, cl
add ecx, r10d
add r9d, eax
cmp ecx, 8
jl 0x1400495c0
mov r10d, dword [rsp + 0x58]
mov byte [r14 + 2], r9b
test r10d, r10d
je 0x140049621
mov r8d, dword [rsp + 0x2c]
and edx, r10d
mov eax, edx
mov ecx, r8d
sar eax, cl
mov ecx, dword [rsp + 0x74]
shl edx, cl
mov ecx, r15d
test r8d, r8d
cmovns edx, eax
mov r8d, edx
cmp r15d, 8
jae 0x140049627
nop word [rax + rax]
mov eax, edx
sar eax, cl
add ecx, r15d
add r8d, eax
cmp ecx, 8
jl 0x140049610
jmp 0x140049627
mov r8d, 0xff
add dword [rsp + 0x4f0], 4
inc edi
mov byte [r14 + 3], r8b
or esi, r8d
add r14, 4
mov dword [rsp + 0x34], edi
cmp edi, dword [rbx]
jl 0x1400494d8
mov dword [rsp + 0x4f8], esi
mov rsi, qword [rsp + 0x80]
mov rbp, qword [rsp + 0x88]
cmp qword [rbx + 0x10], 0
mov r10d, dword [rsp + 0x38]
je 0x140049690
mov ecx, dword [rbx + 0xc0]
sub ecx, dword [rsi]
cmp ecx, r10d
jge 0x140049690
mov rax, qword [rbx + 0xc0]
mov edx, r10d
sub edx, ecx
mov qword [rsi], rax
mov rcx, qword [rbx + 0x28]
call qword [rbx + 0x18]
jmp 0x140049696
mov eax, r10d
add qword [rsi], rax
mov r10d, dword [rsp + 0x3c]
mov eax, dword [rbx + 4]
inc r10d
mov r9d, dword [rsp + 0x4f0]
mov edx, eax
mov rcx, qword [rsp + 0x60]
mov dword [rsp + 0x3c], r10d
cmp r10d, eax
jl 0x140049380
cmp dword [rsp + 0x4f8], 0
jne 0x1400496ed
imul eax, dword [rbx]
lea eax, [rax*4 - 1]
movsxd rcx, eax
test eax, eax
js 0x1400496ed
nop dword [rax]
mov byte [rcx + rbp], 0xff
sub rcx, 4
jns 0x1400496e0
mov edx, dword [rbx + 4]
cmp dword [rsp + 0x78], 0
jle 0x14004975e
xor r10d, r10d
test edx, 0xfffffffe
jle 0x14004975e
nop
mov ecx, dword [rbx]
sub edx, r10d
dec edx
mov r9d, ecx
imul edx, ecx
xor r8d, r8d
imul r9d, r10d
lea eax, [rcx*4]
shl edx, 2
mov r11d, edx
add rdx, rbp
shl r9d, 2
test eax, eax
jle 0x14004974f
sub r9, r11
nop
movzx eax, byte [rdx]
inc r8d
movzx ecx, byte [rdx + r9]
mov byte [rdx + r9], al
mov byte [rdx], cl
lea rdx, [rdx + 1]
mov eax, dword [rbx]
shl eax, 2
cmp r8d, eax
jl 0x140049730
mov edx, dword [rbx + 4]
inc r10d
mov eax, edx
sar eax, 1
cmp r10d, eax
jl 0x140049700
mov eax, dword [rbx]
mov rcx, qword [rsp + 0x4d8]
mov dword [rcx], eax
mov rcx, qword [rsp + 0x4e0]
mov eax, dword [rbx + 4]
mov dword [rcx], eax
mov rcx, qword [rsp + 0x4e8]
test rcx, rcx
je 0x140049789
mov eax, dword [rbx + 8]
mov dword [rcx], eax
mov rax, rbp
mov rsi, qword [rsp + 0x4d0]
mov r15, qword [rsp + 0x490]
add rsp, 0x498
pop r14
pop r13
pop r12
pop rdi
pop rbp
pop rbx
ret
mov rcx, rbp
call qword [sym.imp.api_ms_win_crt_heap_l1_1_0.dll_free]
xor eax, eax
jmp 0x14004978c
xor eax, eax
add rsp, 0x498
pop r14
pop r13
pop r12
pop rdi
pop rbp
pop rbx
ret