Function at 0x4ca657
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 0x4ca686
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x4ca690
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004cc833
test eax, eax
pop ecx
je 0x4ca6ab
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004afcde
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004b524b
test eax, eax
pop ecx
je 0x4ca6c6
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004afcde
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4ca6e3
test ecx, 0x74000
jne 0x4ca6df
cmp dword [ebp - 0x24], eax
je 0x4ca6e3
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, closesocket
je 0x4ca73d
dec eax
je 0x4ca727
dec eax
je 0x4ca722
call fcn.004b490e
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004b48fb
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004afdda
add esp, 0x14
jmp 0x4cacef
mov dword [ebp - 8], edx
jmp 0x4ca740
test cl, 8
je 0x4ca734
test ecx, 0x70000
jne 0x4ca722
mov dword [ebp - 8], 0x40000000
jmp 0x4ca740
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4ca781
sub eax, ecx
je 0x4ca778
sub eax, ecx
je 0x4ca76f
sub eax, ecx
je 0x4ca766
sub eax, 0x40
jne 0x4ca6fc
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4ca784
mov dword [ebp - 0x10], 3
jmp 0x4ca784
mov dword [ebp - 0x10], 2
jmp 0x4ca784
mov dword [ebp - 0x10], 1
jmp 0x4ca784
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 0x4ca7d7
je 0x4ca7ce
cmp eax, ebx
je 0x4ca7ce
cmp eax, edi
je 0x4ca7c5
cmp eax, 0x200
je 0x4ca84a
cmp eax, 0x300
jne 0x4ca6fc
mov dword [ebp - 0x14], 2
jmp 0x4ca7f4
mov dword [ebp - 0x14], 4
jmp 0x4ca7f4
mov dword [ebp - 0x14], 3
jmp 0x4ca7f4
cmp eax, 0x500
je 0x4ca7ed
cmp eax, 0x600
je 0x4ca84a
cmp eax, edx
jne 0x4ca6fc
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4ca818
mov ecx, dword [0x659ac4]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4ca818
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4ca834
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4ca834
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4ca83d
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4ca853
or dword [ebp - 0xc], 0x8000000
jmp 0x4ca85e
mov dword [ebp - 0x14], 5
jmp 0x4ca7f4
test al, 0x10
je 0x4ca85e
or dword [ebp - 0xc], 0x10000000
call fcn.004c861f
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4ca884
call fcn.004b490e
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004b48fb
mov dword [eax], 0x18
jmp 0x4ca912
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 0x4ca91e
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4ca8ea
test byte [ebp + 0x10], 1
je 0x4ca8ea
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 0x4ca91e
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x65bd60]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004b4921
pop ecx
call fcn.004b48fb
mov eax, dword [eax]
jmp 0x4cadab
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4ca96f
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x65bd60]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004b4921
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4ca912
call fcn.004b48fb
mov dword [eax], 0xd
jmp 0x4ca912
cmp eax, 2
jne 0x4ca97a
or byte [ebp - 1], 0x40
jmp 0x4ca983
cmp eax, 3
jne 0x4ca983
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004c83ee
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x65bd60]
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 + 0x65bd60]
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 0x4caa58
test cl, 0x80
je 0x4cab28
test byte [ebp + 0x10], 2
je 0x4caa58
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004c109f
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4caa17
call fcn.004b490e
cmp dword [eax], 0x83
je 0x4caa58
push dword [esi]
call fcn.004c12d5
jmp 0x4ca911
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.004c5f83
add esp, 0xc
test eax, eax
jne 0x4caa48
cmp byte [ebp - 4], 0x1a
jne 0x4caa48
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004cc5c3
add esp, 0xc
cmp eax, edi
je 0x4caa0b
push ebx
push ebx
push dword [esi]
call fcn.004c109f
add esp, 0xc
cmp eax, edi
je 0x4caa0b
test byte [ebp - 1], 0x80
je 0x4cab28
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4caa80
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4caa7d
or dword [ebp + 0x10], edi
jmp 0x4caa80
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4caacd
cmp eax, 0x10000
je 0x4caab9
cmp eax, 0x14000
je 0x4caab9
cmp eax, 0x20000
je 0x4caac7
cmp eax, 0x24000
je 0x4caac7
cmp eax, 0x40000
je 0x4caab3
cmp eax, 0x44000
jne 0x4caad0
mov byte [ebp - 2], 1
jmp 0x4caad0
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4caad0
mov byte [ebp - 2], 2
jmp 0x4caad0
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4cab28
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4cab28
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4cac82
cmp eax, 0x80000000
je 0x4cac49
cmp eax, ecx
jne 0x4cab28
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4cab28
cmp eax, 2
jbe 0x4cad2a
cmp eax, 4
jbe 0x4cac1b
cmp eax, 5
je 0x4cad2a
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x65bd60]
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 + 0x65bd60]
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 0x4cab9a
test byte [ebp + 0x10], 8
je 0x4cab9a
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x65bd60]
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 0x4cada9
test byte [ebp + 0x10], 1
je 0x4cada9
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 0x4cad92
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004b4921
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x65bd60]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004c846b
pop ecx
jmp 0x4ca911
push 2
push ebx
push ebx
push dword [esi]
call fcn.004c6d84
add esp, 0x10
or eax, edx
je 0x4cad2a
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004c6d84
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4caa0b
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004c5f83
add esp, 0xc
cmp eax, 0xffffffff
je 0x4caa0b
cmp eax, 2
je 0x4cacce
cmp eax, 3
jne 0x4cad1c
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4cacce
mov byte [ebp - 2], 1
jmp 0x4cab28
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4cab28
cmp eax, 2
jbe 0x4cad2a
cmp eax, 4
ja 0x4cab1f
push 2
push ebx
push ebx
push dword [esi]
call fcn.004c6d84
add esp, 0x10
or eax, edx
je 0x4cad2a
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004c6d84
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4cab28
jmp 0x4caa0b
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4cacf6
push dword [esi]
call fcn.004c12d5
pop ecx
call fcn.004b48fb
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4cadab
cmp eax, 0xfeff
jne 0x4cad1c
push ebx
push 2
push dword [esi]
call fcn.004c109f
add esp, 0xc
cmp eax, 0xffffffff
je 0x4caa0b
mov byte [ebp - 2], 2
jmp 0x4cab28
push ebx
push ebx
push dword [esi]
call fcn.004c109f
add esp, 0xc
jmp 0x4cacc0
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4cad4a
dec eax
jne 0x4cab28
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4cad58
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.004c0b90
add esp, 0xc
cmp eax, 0xffffffff
je 0x4cad7e
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4cad58
jmp 0x4cab28
push dword [esi]
call fcn.004c12d5
pop ecx
call fcn.004b48fb
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4cadab
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x65bd60]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret