Function at 0x437600
Capabilities:
Encode data using xor

Disassembly:
push ebp
push ebx
push edi
push esi
mov eax, 0x203c
call fcn.00445c00
mov ebx, dword [esp + 0x2054]
mov eax, dword [esp + 0x2050]
mov edi, edx
mov dword [esp], ecx
cmp ebx, 0x1001
jb 0x437657
cmp byte [eax + 0x1000], 0xbf
mov ebx, 0x1000
jg 0x437657
cmp byte [eax + 0xfff], 0xbf
mov ebx, 0xfff
jg 0x437657
xor ebx, ebx
cmp byte [eax + 0xffe], 0xc0
setge bl
add ebx, 0xffd
lea ebp, [esp + 0x3c]
push 0x1000
push ebp
push ebx
push eax
push 8
push 0xfde9
call dword [sym.imp.kernel32.dll_MultiByteToWideChar]
test eax, eax
je 0x437953
mov esi, eax
cmp eax, 0x1001
jae 0x43798a
mov dword [esp + 4], 0
lea eax, [esp + 4]
push 0
push eax
push esi
push ebp
push edi
call dword [sym.imp.kernel32.dll_WriteConsoleW]
test eax, eax
je 0x437904
mov ecx, dword [esp + 4]
cmp ecx, esi
je 0x437917
jae 0x437947
movzx eax, word [esp + ecx*2 + 0x3c]
add eax, 0x2312
movzx eax, ax
cmp eax, 0x312
jae 0x4376f5
lea eax, [esp + ecx*2 + 0x3c]
inc ecx
mov dword [esp + 4], 0
mov ebx, ecx
push 0
lea ecx, [esp + 8]
push ecx
push 1
push eax
push edi
call dword [sym.imp.kernel32.dll_WriteConsoleW]
test eax, eax
je 0x43792b
mov ecx, ebx
cmp ecx, esi
ja 0x43793b
test ecx, ecx
je 0x437915
lea eax, [ecx - 1]
xor ebx, ebx
and eax, 0x7fffffff
cmp eax, 7
jb 0x4378b9
inc eax
mov edi, ecx
pxor xmm0, xmm0
lea edx, [esp + 0x44]
pxor xmm1, xmm1
mov ecx, eax
and ecx, 0xfffffff8
lea ebp, [esp + ecx*2 + 0x3c]
mov esi, ecx
nop word cs:[eax + eax]
nop dword [eax]
movq xmm2, qword [edx]
movdqu xmmword [esp + 0x1c], xmm1
movq xmm1, qword [edx - 8]
movdqa xmm3, xmmword [0x459b00]
movdqu xmmword [esp + 0x2c], xmm0
add edx, 0x10
add esi, 0xfffffff8
movdqa xmm0, xmm1
movdqa xmm5, xmm2
movdqa xmm7, xmm1
movdqa xmm4, xmm2
paddw xmm5, xmm3
paddw xmm0, xmm3
movdqa xmm3, xmmword [0x459ae0]
pxor xmm4, xmmword [0x459ae0]
pxor xmm5, xmmword [0x459ae0]
pxor xmm0, xmm3
movdqa xmm3, xmmword [0x459b10]
pcmpgtw xmm4, xmmword [0x459af0]
movdqa xmm6, xmm3
pcmpgtw xmm3, xmm5
movdqa xmm5, xmmword [0x459b20]
punpcklwd xmm4, xmm4
pcmpgtw xmm6, xmm0
punpcklwd xmm3, xmm3
punpcklwd xmm6, xmm6
movdqa xmm0, xmm6
pandn xmm0, xmm5
movdqa xmm5, xmmword [0x459b30]
pand xmm6, xmm5
por xmm6, xmm0
movdqa xmm0, xmm3
pand xmm3, xmm5
movdqa xmm5, xmmword [0x459ae0]
pandn xmm0, xmmword [0x459b20]
pxor xmm7, xmm5
por xmm3, xmm0
movdqa xmm0, xmmword [0x459b40]
pand xmm3, xmm4
paddw xmm1, xmm0
paddw xmm2, xmm0
movdqa xmm0, xmmword [0x459b50]
pxor xmm1, xmmword [0x459ae0]
pxor xmm2, xmm5
pcmpeqd xmm5, xmm5
pcmpgtw xmm0, xmm1
movdqa xmm1, xmmword [0x459b50]
punpcklwd xmm0, xmm0
pcmpgtw xmm1, xmm2
movdqa xmm2, xmmword [0x459af0]
pcmpgtw xmm7, xmm2
movdqa xmm2, xmmword [0x459b30]
punpcklwd xmm7, xmm7
pand xmm6, xmm7
pand xmm0, xmm2
psubd xmm0, xmm5
pandn xmm7, xmm0
movdqu xmm0, xmmword [esp + 0x2c]
por xmm7, xmm6
paddd xmm0, xmm7
punpcklwd xmm1, xmm1
pand xmm1, xmm2
psubd xmm1, xmm5
pandn xmm4, xmm1
movdqu xmm1, xmmword [esp + 0x1c]
por xmm4, xmm3
paddd xmm1, xmm4
jne 0x437740
paddd xmm1, xmm0
cmp eax, ecx
mov ecx, edi
pshufd xmm0, xmm1, 0xee
paddd xmm0, xmm1
pshufd xmm1, xmm0, 0x55
paddd xmm1, xmm0
movd ebx, xmm1
je 0x437917
lea eax, [esp + ecx*2 + 0x3c]
jmp 0x4378c9
add ebp, 2
add ebx, edx
cmp ebp, eax
je 0x437917
movzx ecx, word [ebp]
mov edx, 1
cmp ecx, 0x80
jb 0x4378c0
movzx esi, cx
mov edx, 2
cmp esi, 0x800
jb 0x4378c0
add ecx, 0x2312
xor edx, edx
movzx ecx, cx
cmp ecx, 0x312
setae dl
lea edx, [edx + edx + 1]
jmp 0x4378c0
call dword [sym.imp.kernel32.dll_GetLastError]
mov ecx, dword [esp]
mov byte [ecx], 0
mov dword [ecx + 4], eax
jmp 0x437920
xor ebx, ebx
mov eax, dword [esp]
mov dword [eax + 4], ebx
mov byte [eax], 4
add esp, 0x203c
pop esi
pop edi
pop ebx
pop ebp
ret
call dword [sym.imp.kernel32.dll_GetLastError]
mov ecx, ebx
cmp ecx, esi
jbe 0x4376fd
push 0x45b954
push esi
push ecx
call fcn.004555b0
push 0x45b944
push esi
push ecx
call fcn.004552d0
mov dword [esp + 4], str.Unexpected_error_in_MultiByteToWideChar
mov dword [esp + 8], 1
mov dword [esp + 0x14], 0
mov dword [esp + 0xc], 0x459b60
mov dword [esp + 0x10], 0
lea eax, [esp + 4]
push 0x45b924
push eax
call fcn.00455150
push 0x45b934
push 0x1000
push esi
call fcn.004555b0
int3