Function at 0x49701d
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 0x49704c
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x497056
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00492b01
test eax, eax
pop ecx
je 0x497071
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00480dce
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00485d30
test eax, eax
pop ecx
je 0x49708c
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00480dce
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4970a9
test ecx, 0x74000
jne 0x4970a5
cmp dword [ebp - 0x24], eax
je 0x4970a9
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x497103
dec eax
je 0x4970ed
dec eax
je 0x4970e8
call fcn.00487223
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00487210
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00480eca
add esp, 0x14
jmp 0x4976b5
mov dword [ebp - 8], edx
jmp 0x497106
test cl, 8
je 0x4970fa
test ecx, 0x70000
jne 0x4970e8
mov dword [ebp - 8], 0x40000000
jmp 0x497106
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x497147
sub eax, ecx
je 0x49713e
sub eax, ecx
je 0x497135
sub eax, ecx
je 0x49712c
sub eax, 0x40
jne 0x4970c2
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x49714a
mov dword [ebp - 0x10], 3
jmp 0x49714a
mov dword [ebp - 0x10], 2
jmp 0x49714a
mov dword [ebp - 0x10], 1
jmp 0x49714a
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 0x49719d
je 0x497194
cmp eax, ebx
je 0x497194
cmp eax, edi
je 0x49718b
cmp eax, 0x200
je 0x497210
cmp eax, 0x300
jne 0x4970c2
mov dword [ebp - 0x14], 2
jmp 0x4971ba
mov dword [ebp - 0x14], 4
jmp 0x4971ba
mov dword [ebp - 0x14], 3
jmp 0x4971ba
cmp eax, 0x500
je 0x4971b3
cmp eax, 0x600
je 0x497210
cmp eax, edx
jne 0x4970c2
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4971de
mov ecx, dword [0x4cae74]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4971de
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4971fa
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4971fa
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x497203
or dword [ebp - 0xc], edi
test al, 0x20
je 0x497219
or dword [ebp - 0xc], 0x8000000
jmp 0x497224
mov dword [ebp - 0x14], 5
jmp 0x4971ba
test al, 0x10
je 0x497224
or dword [ebp - 0xc], 0x10000000
call fcn.00483a5b
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x49724a
call fcn.00487223
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00487210
mov dword [eax], 0x18
jmp 0x4972d8
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 0x4972e4
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4972b0
test byte [ebp + 0x10], 1
je 0x4972b0
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 0x4972e4
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4cc0c0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00487236
pop ecx
call fcn.00487210
mov eax, dword [eax]
jmp 0x497771
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x497335
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4cc0c0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00487236
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4972d8
call fcn.00487210
mov dword [eax], 0xd
jmp 0x4972d8
cmp eax, 2
jne 0x497340
or byte [ebp - 1], 0x40
jmp 0x497349
cmp eax, 3
jne 0x497349
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0048382a
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4cc0c0]
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 + 0x4cc0c0]
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 0x49741e
test cl, 0x80
je 0x4974ee
test byte [ebp + 0x10], 2
je 0x49741e
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0048c2f0
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4973dd
call fcn.00487223
cmp dword [eax], 0x83
je 0x49741e
push dword [esi]
call fcn.0048becf
jmp 0x4972d7
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0048d2b9
add esp, 0xc
test eax, eax
jne 0x49740e
cmp byte [ebp - 4], 0x1a
jne 0x49740e
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004832de
add esp, 0xc
cmp eax, edi
je 0x4973d1
push ebx
push ebx
push dword [esi]
call fcn.0048c2f0
add esp, 0xc
cmp eax, edi
je 0x4973d1
test byte [ebp - 1], 0x80
je 0x4974ee
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x497446
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x497443
or dword [ebp + 0x10], edi
jmp 0x497446
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x497493
cmp eax, 0x10000
je 0x49747f
cmp eax, 0x14000
je 0x49747f
cmp eax, 0x20000
je 0x49748d
cmp eax, 0x24000
je 0x49748d
cmp eax, 0x40000
je 0x497479
cmp eax, 0x44000
jne 0x497496
mov byte [ebp - 2], 1
jmp 0x497496
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x497496
mov byte [ebp - 2], 2
jmp 0x497496
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4974ee
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4974ee
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x497648
cmp eax, 0x80000000
je 0x49760f
cmp eax, ecx
jne 0x4974ee
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4974ee
cmp eax, 2
jbe 0x4976f0
cmp eax, 4
jbe 0x4975e1
cmp eax, 5
je 0x4976f0
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4cc0c0]
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 + 0x4cc0c0]
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 0x497560
test byte [ebp + 0x10], 8
je 0x497560
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4cc0c0]
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 0x49776f
test byte [ebp + 0x10], 1
je 0x49776f
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 0x497758
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00487236
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4cc0c0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004838a7
pop ecx
jmp 0x4972d7
push 2
push ebx
push ebx
push dword [esi]
call fcn.00492b35
add esp, 0x10
or eax, edx
je 0x4976f0
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00492b35
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4973d1
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0048d2b9
add esp, 0xc
cmp eax, 0xffffffff
je 0x4973d1
cmp eax, 2
je 0x497694
cmp eax, 3
jne 0x4976e2
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x497694
mov byte [ebp - 2], 1
jmp 0x4974ee
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4974ee
cmp eax, 2
jbe 0x4976f0
cmp eax, 4
ja 0x4974e5
push 2
push ebx
push ebx
push dword [esi]
call fcn.00492b35
add esp, 0x10
or eax, edx
je 0x4976f0
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00492b35
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4974ee
jmp 0x4973d1
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4976bc
push dword [esi]
call fcn.0048becf
pop ecx
call fcn.00487210
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x497771
cmp eax, 0xfeff
jne 0x4976e2
push ebx
push 2
push dword [esi]
call fcn.0048c2f0
add esp, 0xc
cmp eax, 0xffffffff
je 0x4973d1
mov byte [ebp - 2], 2
jmp 0x4974ee
push ebx
push ebx
push dword [esi]
call fcn.0048c2f0
add esp, 0xc
jmp 0x497686
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x497710
dec eax
jne 0x4974ee
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x49771e
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.00492888
add esp, 0xc
cmp eax, 0xffffffff
je 0x497744
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x49771e
jmp 0x4974ee
push dword [esi]
call fcn.0048becf
pop ecx
call fcn.00487210
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x497771
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4cc0c0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret