Function at 0x5811dc
Capabilities:
Encode data using xor

Disassembly:
sub esp, 0x43c
push esi
mov esi, dword [esp + 0x44c]
cmp dword [esi], 0
je 0x581557
push edi
mov edi, dword [esp + 0x448]
test edi, edi
je 0x581556
mov eax, dword [edi + 0x1c]
test eax, eax
je 0x581556
mov ecx, dword [edi + 0x28]
mov edx, dword [edi + 0x24]
push ebx
lea eax, [esp + 0x24]
push eax
push ecx
push edx
push 0
push 0
call fcn.00574e2c
mov edx, dword [esp + 0x464]
lea eax, [esp + 0x28]
push eax
lea ecx, [esp + 0x3c]
push ecx
push edx
call fcn.0057509c
mov ebx, dword [esp + 0x34]
add esp, 0x20
cmp ebx, 0x7ffffff
je 0x581555
push ebp
lea eax, [esp + 0x10]
push eax
lea ecx, [esp + 0x1c]
push ecx
push edi
call fcn.0057c5ec
mov ebp, eax
mov eax, dword [esp + 0x1c]
cdq
and edx, 3
add eax, edx
sar eax, 2
add esp, 0xc
test ebp, ebp
mov dword [esp + 0x10], eax
je 0x581554
mov edx, dword [esp + 0x20]
mov edi, dword [esp + 0x1c]
mov ecx, dword [esp + 0x24]
sub ecx, edx
sub edi, ebx
mov bx, word [esi + 0x10]
mov edx, pe_nt_image_headers32
cmp bx, dx
mov dword [esp + 0x14], ecx
jne 0x581376
cmp word [esi + 0x12], 0
jne 0x581376
cmp word [esi + 0xc], dx
jne 0x581376
cmp word [esi + 0xe], 0
jne 0x581376
cmp word [esi + 8], dx
jne 0x581376
cmp word [esi + 0xa], 0
jne 0x581376
cmp word [esi + 6], 0
jne 0x581376
movsx edx, word [esi + 4]
test edx, edx
jge 0x5812f0
xor edx, edx
jmp 0x5812fd
cmp edx, 0x100
jle 0x5812fd
mov edx, pe_nt_image_headers32
test ecx, ecx
jle 0x581554
shl eax, 2
mov dword [esp + 0x10], eax
mov dword [esp + 0x14], ecx
xor ecx, ecx
test edi, edi
jle 0x58135a
lea ebx, [ebx]
mov eax, dword [ebp + ecx*4]
mov esi, eax
and esi, 0xff00ff
mov ebx, eax
imul esi, edx
shr ebx, 8
and ebx, 0xffff00ff
shr eax, 8
imul ebx, edx
and eax, 0xff00ff
imul eax, edx
shr esi, 8
xor esi, ebx
and esi, 0xff00ff
xor esi, eax
mov dword [ebp + ecx*4], esi
inc ecx
cmp ecx, edi
jl 0x58131c
mov ecx, dword [esp + 0x10]
mov eax, dword [esp + 0x14]
add ebp, ecx
dec eax
mov dword [esp + 0x14], eax
jne 0x581310
pop ebp
pop ebx
pop edi
pop esi
add esp, 0x43c
ret
mov bx, word [esi + 4]
cmp bx, dx
jl 0x58139b
cmp word [esi + 6], 0
jl 0x58139b
mov ecx, dword [esp + 0x450]
cmp dword [ecx + 4], 8
mov byte [esp + 0x438], 0
jne 0x5813a3
mov byte [esp + 0x438], 1
mov ecx, esi
call fcn.0057c29c
test eax, eax
mov word [esp + 0x442], bx
je 0x5813c3
mov byte [esp + 0x438], 3
jmp 0x581479
mov dx, word [esi + 0xc]
mov cx, word [esi + 0x10]
mov ax, word [esi + 8]
mov word [esp + 0x43e], dx
mov dx, word [esi + 0xe]
mov word [esp + 0x43c], cx
mov cx, word [esi + 6]
mov word [esp + 0x446], dx
mov dx, word [esi + 0x12]
mov word [esp + 0x44a], cx
mov cx, word [esi + 0xa]
mov word [esp + 0x444], dx
mov word [esp + 0x448], cx
lea edx, [esp + 0x38]
push edx
movsx ecx, cx
movsx edx, ax
push ecx
push edx
mov word [esp + 0x44c], ax
call fcn.0059acfc
movsx ecx, word [esi + 0xe]
movsx edx, word [esi + 0xc]
lea eax, [esp + 0x144]
push eax
push ecx
push edx
call fcn.0059acfc
movsx ecx, word [esi + 0x12]
movsx edx, word [esi + 0x10]
lea eax, [esp + 0x250]
push eax
push ecx
push edx
call fcn.0059acfc
movsx ecx, word [esi + 6]
movsx edx, word [esi + 4]
lea eax, [esp + 0x35c]
push eax
push ecx
push edx
call fcn.0059acfc
add esp, 0x30
mov byte [esp + 0x338], 0
lea eax, [edi*8]
push eax
call fcn.0071528c
mov ebx, eax
mov eax, dword [esp + 0x18]
add esp, 4
test eax, eax
jle 0x58154b
mov ecx, dword [esp + 0x10]
lea edx, [ecx*4]
mov dword [esp + 0x10], edx
mov dword [esp + 0x14], eax
mov edi, edi
xor esi, esi
test edi, edi
jle 0x5814f2
lea eax, [ebx + 4]
lea esp, [esp]
mov ecx, dword [ebp + esi*4]
mov edx, ecx
shr edx, 0x18
mov word [eax + 2], dx
mov edx, ecx
shr edx, 0x10
movzx dx, dl
mov word [eax], dx
mov edx, ecx
shr edx, 8
movzx dx, dl
movzx cx, cl
mov word [eax - 2], dx
mov word [eax - 4], cx
inc esi
add eax, 8
cmp esi, edi
jl 0x5814bc
push edi
lea edx, [esp + 0x3c]
push ebx
push edx
call fcn.0059ad3c
add esp, 0xc
xor ecx, ecx
test edi, edi
jle 0x581536
lea eax, [ebx + 4]
mov edi, edi
movzx edx, word [eax + 2]
movzx esi, word [eax]
shl edx, 8
or edx, esi
movzx esi, word [eax - 2]
shl edx, 8
or edx, esi
movzx esi, word [eax - 4]
shl edx, 8
or edx, esi
mov dword [ebp + ecx*4], edx
inc ecx
add eax, 8
cmp ecx, edi
jl 0x58150c
mov ecx, dword [esp + 0x10]
mov eax, dword [esp + 0x14]
add ebp, ecx
dec eax
mov dword [esp + 0x14], eax
jne 0x5814ac
push ebx
call fcn.007152ac
add esp, 4
pop ebp
pop ebx
pop edi
pop esi
add esp, 0x43c
ret