Function at 0x436df0
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x34
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 - 0x34], 0xc
mov dword [ebp - 0x30], ebx
je 0x436e1f
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x436e29
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00442bec
test eax, eax
pop ecx
je 0x436e44
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00430604
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00427b4f
test eax, eax
pop ecx
je 0x436e5f
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00430604
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x436e7c
test ecx, 0x74000
jne 0x436e78
cmp dword [ebp - 0x24], eax
je 0x436e7c
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x436ed6
dec eax
je 0x436ec0
dec eax
je 0x436ebb
call fcn.00427a75
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00427a62
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00430700
add esp, 0x14
jmp 0x437488
mov dword [ebp - 8], edx
jmp 0x436ed9
test cl, 8
je 0x436ecd
test ecx, 0x70000
jne 0x436ebb
mov dword [ebp - 8], 0x40000000
jmp 0x436ed9
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x436f1a
sub eax, ecx
je 0x436f11
sub eax, ecx
je 0x436f08
sub eax, ecx
je 0x436eff
sub eax, 0x40
jne 0x436e95
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x436f1d
mov dword [ebp - 0x10], 3
jmp 0x436f1d
mov dword [ebp - 0x10], 2
jmp 0x436f1d
mov dword [ebp - 0x10], 1
jmp 0x436f1d
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 0x436f70
je 0x436f67
cmp eax, ebx
je 0x436f67
cmp eax, edi
je 0x436f5e
cmp eax, 0x200
je 0x436fe3
cmp eax, 0x300
jne 0x436e95
mov dword [ebp - 0x14], 2
jmp 0x436f8d
mov dword [ebp - 0x14], 4
jmp 0x436f8d
mov dword [ebp - 0x14], 3
jmp 0x436f8d
cmp eax, 0x500
je 0x436f86
cmp eax, 0x600
je 0x436fe3
cmp eax, edx
jne 0x436e95
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x436fb1
mov ecx, dword [0x45ea14]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x436fb1
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x436fcd
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x436fcd
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x436fd6
or dword [ebp - 0xc], edi
test al, 0x20
je 0x436fec
or dword [ebp - 0xc], 0x8000000
jmp 0x436ff7
mov dword [ebp - 0x14], 5
jmp 0x436f8d
test al, 0x10
je 0x436ff7
or dword [ebp - 0xc], 0x10000000
call fcn.00441c4f
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x43701d
call fcn.00427a75
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00427a62
mov dword [eax], 0x18
jmp 0x4370ab
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileA]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x34]
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 0x4370b7
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x437083
test byte [ebp + 0x10], 1
je 0x437083
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x34]
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 0x4370b7
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x45f500]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00427a88
pop ecx
call fcn.00427a62
mov eax, dword [eax]
jmp 0x437544
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x437108
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x45f500]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00427a88
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4370ab
call fcn.00427a62
mov dword [eax], 0xd
jmp 0x4370ab
cmp eax, 2
jne 0x437113
or byte [ebp - 1], 0x40
jmp 0x43711c
cmp eax, 3
jne 0x43711c
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00441a1e
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x45f500]
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 + 0x45f500]
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 0x4371f1
test cl, 0x80
je 0x4372c1
test byte [ebp + 0x10], 2
je 0x4371f1
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0043bf4c
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4371b0
call fcn.00427a75
cmp dword [eax], 0x83
je 0x4371f1
push dword [esi]
call fcn.0043417c
jmp 0x4370aa
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.00431ad2
add esp, 0xc
test eax, eax
jne 0x4371e1
cmp byte [ebp - 4], 0x1a
jne 0x4371e1
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0044297c
add esp, 0xc
cmp eax, edi
je 0x4371a4
push ebx
push ebx
push dword [esi]
call fcn.0043bf4c
add esp, 0xc
cmp eax, edi
je 0x4371a4
test byte [ebp - 1], 0x80
je 0x4372c1
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x437219
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x437216
or dword [ebp + 0x10], edi
jmp 0x437219
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x437266
cmp eax, 0x10000
je 0x437252
cmp eax, 0x14000
je 0x437252
cmp eax, 0x20000
je 0x437260
cmp eax, 0x24000
je 0x437260
cmp eax, 0x40000
je 0x43724c
cmp eax, 0x44000
jne 0x437269
mov byte [ebp - 2], 1
jmp 0x437269
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x437269
mov byte [ebp - 2], 2
jmp 0x437269
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4372c1
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4372c1
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x43741b
cmp eax, 0x80000000
je 0x4373e2
cmp eax, ecx
jne 0x4372c1
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4372c1
cmp eax, 2
jbe 0x4374c3
cmp eax, 4
jbe 0x4373b4
cmp eax, 5
je 0x4374c3
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x45f500]
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 + 0x45f500]
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 0x437333
test byte [ebp + 0x10], 8
je 0x437333
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x45f500]
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 0x437542
test byte [ebp + 0x10], 1
je 0x437542
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x34]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
jne 0x43752b
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00427a88
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x45f500]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00441a9b
pop ecx
jmp 0x4370aa
push 2
push ebx
push ebx
push dword [esi]
call fcn.004413fb
add esp, 0x10
or eax, edx
je 0x4374c3
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004413fb
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4371a4
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00431ad2
add esp, 0xc
cmp eax, 0xffffffff
je 0x4371a4
cmp eax, 2
je 0x437467
cmp eax, 3
jne 0x4374b5
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x437467
mov byte [ebp - 2], 1
jmp 0x4372c1
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4372c1
cmp eax, 2
jbe 0x4374c3
cmp eax, 4
ja 0x4372b8
push 2
push ebx
push ebx
push dword [esi]
call fcn.004413fb
add esp, 0x10
or eax, edx
je 0x4374c3
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004413fb
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4372c1
jmp 0x4371a4
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x43748f
push dword [esi]
call fcn.0043417c
pop ecx
call fcn.00427a62
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x437544
cmp eax, 0xfeff
jne 0x4374b5
push ebx
push 2
push dword [esi]
call fcn.0043bf4c
add esp, 0xc
cmp eax, 0xffffffff
je 0x4371a4
mov byte [ebp - 2], 2
jmp 0x4372c1
push ebx
push ebx
push dword [esi]
call fcn.0043bf4c
add esp, 0xc
jmp 0x437459
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4374e3
dec eax
jne 0x4372c1
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4374f1
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.004368d5
add esp, 0xc
cmp eax, 0xffffffff
je 0x437517
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4374f1
jmp 0x4372c1
push dword [esi]
call fcn.0043417c
pop ecx
call fcn.00427a62
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x437544
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x45f500]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret