Function at 0x41d58a
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x38
push ebx
xor ebx, ebx
test byte [ebp + 0x10], 0x80
push esi
push edi
mov esi, eax
mov dword [ebp - 0x24], ebx
mov dword [ebp - 0x28], ebx
mov byte [ebp - 2], bl
mov dword [ebp - 0x38], 0xc
mov dword [ebp - 0x34], ebx
je 0x41d5b9
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x41d5c3
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00420ee4
test eax, eax
pop ecx
je 0x41d5de
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0040f231
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00413e24
test eax, eax
pop ecx
je 0x41d5f9
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0040f231
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x41d616
test ecx, 0x74000
jne 0x41d612
cmp dword [ebp - 0x24], eax
je 0x41d616
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x41d670
dec eax
je 0x41d65a
dec eax
je 0x41d655
call fcn.0041165d
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0041164a
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0040f32d
add esp, 0x14
jmp 0x41dc23
mov dword [ebp - 8], edx
jmp 0x41d673
test cl, 8
je 0x41d667
test ecx, 0x70000
jne 0x41d655
mov dword [ebp - 8], 0x40000000
jmp 0x41d673
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x41d6b4
sub eax, ecx
je 0x41d6ab
sub eax, ecx
je 0x41d6a2
sub eax, ecx
je 0x41d699
sub eax, 0x40
jne 0x41d62f
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x41d6b7
mov dword [ebp - 0x10], 3
jmp 0x41d6b7
mov dword [ebp - 0x10], 2
jmp 0x41d6b7
mov dword [ebp - 0x10], 1
jmp 0x41d6b7
mov dword [ebp - 0x10], ebx
mov eax, dword [ebp + 0x10]
mov edx, 0x700
and eax, edx
mov ecx, 0x400
cmp eax, ecx
mov edi, 0x100
jg 0x41d70a
je 0x41d701
cmp eax, ebx
je 0x41d701
cmp eax, edi
je 0x41d6f8
cmp eax, 0x200
je 0x41d77d
cmp eax, 0x300
jne 0x41d62f
mov dword [ebp - 0x14], 2
jmp 0x41d727
mov dword [ebp - 0x14], 4
jmp 0x41d727
mov dword [ebp - 0x14], 3
jmp 0x41d727
cmp eax, 0x500
je 0x41d720
cmp eax, 0x600
je 0x41d77d
cmp eax, edx
jne 0x41d62f
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x41d74b
mov ecx, dword [0x431d38]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x41d74b
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x41d767
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x41d767
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x41d770
or dword [ebp - 0xc], edi
test al, 0x20
je 0x41d786
or dword [ebp - 0xc], 0x8000000
jmp 0x41d791
mov dword [ebp - 0x14], 5
jmp 0x41d727
test al, 0x10
je 0x41d791
or dword [ebp - 0xc], 0x10000000
call fcn.0041d1d2
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x41d7b7
call fcn.0041165d
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0041164a
mov dword [eax], 0x18
jmp 0x41d845
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileW]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x38]
push eax
push dword [ebp - 0x10]
push dword [ebp - 8]
push dword [ebp + 0xc]
call edi
cmp eax, 0xffffffff
mov dword [ebp - 0x1c], eax
jne 0x41d851
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x41d81d
test byte [ebp + 0x10], 1
je 0x41d81d
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
push dword [ebp - 0x14]
push eax
push dword [ebp - 0x10]
push dword [ebp - 8]
push dword [ebp + 0xc]
call edi
cmp eax, 0xffffffff
mov dword [ebp - 0x1c], eax
jne 0x41d851
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x432460]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00411670
pop ecx
call fcn.0041164a
mov eax, dword [eax]
jmp 0x41dcdf
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x41d8a2
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x432460]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00411670
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x41d845
call fcn.0041164a
mov dword [eax], 0xd
jmp 0x41d845
cmp eax, 2
jne 0x41d8ad
or byte [ebp - 1], 0x40
jmp 0x41d8b6
cmp eax, 3
jne 0x41d8b6
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0041cfa1
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x432460]
pop ecx
pop ecx
mov cl, byte [ebp - 1]
or cl, 1
mov byte [edx + eax + 4], cl
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x432460]
lea eax, [edx + eax + 0x24]
and byte [eax], 0x80
mov byte [ebp - 3], cl
and byte [ebp - 3], 0x48
mov byte [ebp - 1], cl
jne 0x41d98c
test cl, 0x80
je 0x41da5c
test byte [ebp + 0x10], 2
je 0x41d98c
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0041a28c
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x41d94a
call fcn.0041165d
cmp dword [eax], 0x83
je 0x41d98c
push dword [esi]
call fcn.00417efa
jmp 0x41d844
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.0041783c
add esp, 0xc
test eax, eax
jne 0x41d97c
cmp word [ebp - 0x2c], 0x1a
jne 0x41d97c
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00420c74
add esp, 0xc
cmp eax, edi
je 0x41d93e
push ebx
push ebx
push dword [esi]
call fcn.0041a28c
add esp, 0xc
cmp eax, edi
je 0x41d93e
test byte [ebp - 1], 0x80
je 0x41da5c
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x41d9b4
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x41d9b1
or dword [ebp + 0x10], edi
jmp 0x41d9b4
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x41da01
cmp eax, 0x10000
je 0x41d9ed
cmp eax, 0x14000
je 0x41d9ed
cmp eax, 0x20000
je 0x41d9fb
cmp eax, 0x24000
je 0x41d9fb
cmp eax, 0x40000
je 0x41d9e7
cmp eax, 0x44000
jne 0x41da04
mov byte [ebp - 2], 1
jmp 0x41da04
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x41da04
mov byte [ebp - 2], 2
jmp 0x41da04
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x41da5c
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x41da5c
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x41dbb6
cmp eax, 0x80000000
je 0x41db7d
cmp eax, ecx
jne 0x41da5c
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x41da5c
cmp eax, 2
jbe 0x41dc5e
cmp eax, 4
jbe 0x41db4f
cmp eax, 5
je 0x41dc5e
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x432460]
lea eax, [ecx + eax + 0x24]
mov cl, byte [eax]
xor cl, byte [ebp - 2]
and cl, 0x7f
xor byte [eax], cl
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x432460]
lea eax, [ecx + eax + 0x24]
mov ecx, dword [ebp + 0x10]
mov dl, byte [eax]
shr ecx, 0x10
shl cl, 7
and dl, 0x7f
or cl, dl
cmp byte [ebp - 3], bl
mov byte [eax], cl
jne 0x41dace
test byte [ebp + 0x10], 8
je 0x41dace
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x432460]
lea eax, [ecx + eax + 4]
or byte [eax], 0x20
mov edi, dword [ebp - 8]
mov eax, 0xc0000000
mov ecx, edi
and ecx, eax
cmp ecx, eax
jne 0x41dcdd
test byte [ebp + 0x10], 1
je 0x41dcdd
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileW]
cmp eax, 0xffffffff
jne 0x41dcc6
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00411670
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x432460]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0041d01e
pop ecx
jmp 0x41d844
push 2
push ebx
push ebx
push dword [esi]
call fcn.0041ba96
add esp, 0x10
or eax, edx
je 0x41dc5e
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0041ba96
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x41d93e
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0041783c
add esp, 0xc
cmp eax, 0xffffffff
je 0x41d93e
cmp eax, 2
je 0x41dc02
cmp eax, 3
jne 0x41dc50
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x41dc02
mov byte [ebp - 2], 1
jmp 0x41da5c
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x41da5c
cmp eax, 2
jbe 0x41dc5e
cmp eax, 4
ja 0x41da53
push 2
push ebx
push ebx
push dword [esi]
call fcn.0041ba96
add esp, 0x10
or eax, edx
je 0x41dc5e
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0041ba96
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x41da5c
jmp 0x41d93e
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x41dc2a
push dword [esi]
call fcn.00417efa
pop ecx
call fcn.0041164a
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x41dcdf
cmp eax, 0xfeff
jne 0x41dc50
push ebx
push 2
push dword [esi]
call fcn.0041a28c
add esp, 0xc
cmp eax, 0xffffffff
je 0x41d93e
mov byte [ebp - 2], 2
jmp 0x41da5c
push ebx
push ebx
push dword [esi]
call fcn.0041a28c
add esp, 0xc
jmp 0x41dbf4
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x41dc7e
dec eax
jne 0x41da5c
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x41dc8c
mov dword [ebp - 0x18], 0xbfbbef
mov dword [ebp - 0x14], 3
mov eax, dword [ebp - 0x14]
sub eax, edi
push eax
lea eax, [ebp + edi - 0x18]
push eax
push dword [esi]
call fcn.00416ade
add esp, 0xc
cmp eax, 0xffffffff
je 0x41dcb2
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x41dc8c
jmp 0x41da5c
push dword [esi]
call fcn.00417efa
pop ecx
call fcn.0041164a
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x41dcdf
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x432460]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret