Function at 0x4c3429
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 0x4c3458
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x4c3462
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004c5274
test eax, eax
pop ecx
je 0x4c347d
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004a8bf4
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004b0b93
test eax, eax
pop ecx
je 0x4c3498
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004a8bf4
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4c34b5
test ecx, 0x74000
jne 0x4c34b1
cmp dword [ebp - 0x24], eax
je 0x4c34b5
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, closesocket
je 0x4c350f
dec eax
je 0x4c34f9
dec eax
je 0x4c34f4
call fcn.004ab30b
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004ab2f8
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004a8cf0
add esp, 0x14
jmp 0x4c3ac1
mov dword [ebp - 8], edx
jmp 0x4c3512
test cl, 8
je 0x4c3506
test ecx, 0x70000
jne 0x4c34f4
mov dword [ebp - 8], 0x40000000
jmp 0x4c3512
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4c3553
sub eax, ecx
je 0x4c354a
sub eax, ecx
je 0x4c3541
sub eax, ecx
je 0x4c3538
sub eax, 0x40
jne 0x4c34ce
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4c3556
mov dword [ebp - 0x10], 3
jmp 0x4c3556
mov dword [ebp - 0x10], 2
jmp 0x4c3556
mov dword [ebp - 0x10], 1
jmp 0x4c3556
mov dword [ebp - 0x10], ebx
mov eax, dword [ebp + 0x10]
mov edx, 0x700
and eax, edx
mov ecx, 0x400
cmp eax, ecx
mov edi, pe_nt_image_headers32
jg 0x4c35a9
je 0x4c35a0
cmp eax, ebx
je 0x4c35a0
cmp eax, edi
je 0x4c3597
cmp eax, 0x200
je 0x4c361c
cmp eax, 0x300
jne 0x4c34ce
mov dword [ebp - 0x14], 2
jmp 0x4c35c6
mov dword [ebp - 0x14], 4
jmp 0x4c35c6
mov dword [ebp - 0x14], 3
jmp 0x4c35c6
cmp eax, 0x500
je 0x4c35bf
cmp eax, 0x600
je 0x4c361c
cmp eax, edx
jne 0x4c34ce
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4c35ea
mov ecx, dword [0x4fd2b0]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4c35ea
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4c3606
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4c3606
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4c360f
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4c3625
or dword [ebp - 0xc], 0x8000000
jmp 0x4c3630
mov dword [ebp - 0x14], 5
jmp 0x4c35c6
test al, 0x10
je 0x4c3630
or dword [ebp - 0xc], 0x10000000
call fcn.004c097e
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4c3656
call fcn.004ab30b
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004ab2f8
mov dword [eax], 0x18
jmp 0x4c36e4
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 0x4c36f0
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4c36bc
test byte [ebp + 0x10], 1
je 0x4c36bc
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 0x4c36f0
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4ffba0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004ab31e
pop ecx
call fcn.004ab2f8
mov eax, dword [eax]
jmp 0x4c3b7d
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4c3741
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4ffba0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004ab31e
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4c36e4
call fcn.004ab2f8
mov dword [eax], 0xd
jmp 0x4c36e4
cmp eax, 2
jne 0x4c374c
or byte [ebp - 1], 0x40
jmp 0x4c3755
cmp eax, 3
jne 0x4c3755
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004c074d
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4ffba0]
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 + 0x4ffba0]
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 0x4c382a
test cl, 0x80
je 0x4c38fa
test byte [ebp + 0x10], 2
je 0x4c382a
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004b3877
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4c37e9
call fcn.004ab30b
cmp dword [eax], 0x83
je 0x4c382a
push dword [esi]
call fcn.004b6783
jmp 0x4c36e3
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.004ba963
add esp, 0xc
test eax, eax
jne 0x4c381a
cmp byte [ebp - 4], 0x1a
jne 0x4c381a
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004c5004
add esp, 0xc
cmp eax, edi
je 0x4c37dd
push ebx
push ebx
push dword [esi]
call fcn.004b3877
add esp, 0xc
cmp eax, edi
je 0x4c37dd
test byte [ebp - 1], 0x80
je 0x4c38fa
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4c3852
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4c384f
or dword [ebp + 0x10], edi
jmp 0x4c3852
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4c389f
cmp eax, 0x10000
je 0x4c388b
cmp eax, 0x14000
je 0x4c388b
cmp eax, 0x20000
je 0x4c3899
cmp eax, 0x24000
je 0x4c3899
cmp eax, 0x40000
je 0x4c3885
cmp eax, 0x44000
jne 0x4c38a2
mov byte [ebp - 2], 1
jmp 0x4c38a2
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4c38a2
mov byte [ebp - 2], 2
jmp 0x4c38a2
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4c38fa
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4c38fa
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4c3a54
cmp eax, 0x80000000
je 0x4c3a1b
cmp eax, ecx
jne 0x4c38fa
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4c38fa
cmp eax, 2
jbe 0x4c3afc
cmp eax, 4
jbe 0x4c39ed
cmp eax, 5
je 0x4c3afc
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ffba0]
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 + 0x4ffba0]
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 0x4c396c
test byte [ebp + 0x10], 8
je 0x4c396c
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ffba0]
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 0x4c3b7b
test byte [ebp + 0x10], 1
je 0x4c3b7b
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 0x4c3b64
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004ab31e
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ffba0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004c07ca
pop ecx
jmp 0x4c36e3
push 2
push ebx
push ebx
push dword [esi]
call fcn.004ba2b6
add esp, 0x10
or eax, edx
je 0x4c3afc
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004ba2b6
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4c37dd
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004ba963
add esp, 0xc
cmp eax, 0xffffffff
je 0x4c37dd
cmp eax, 2
je 0x4c3aa0
cmp eax, 3
jne 0x4c3aee
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4c3aa0
mov byte [ebp - 2], 1
jmp 0x4c38fa
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4c38fa
cmp eax, 2
jbe 0x4c3afc
cmp eax, 4
ja 0x4c38f1
push 2
push ebx
push ebx
push dword [esi]
call fcn.004ba2b6
add esp, 0x10
or eax, edx
je 0x4c3afc
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004ba2b6
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4c38fa
jmp 0x4c37dd
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4c3ac8
push dword [esi]
call fcn.004b6783
pop ecx
call fcn.004ab2f8
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4c3b7d
cmp eax, 0xfeff
jne 0x4c3aee
push ebx
push 2
push dword [esi]
call fcn.004b3877
add esp, 0xc
cmp eax, 0xffffffff
je 0x4c37dd
mov byte [ebp - 2], 2
jmp 0x4c38fa
push ebx
push ebx
push dword [esi]
call fcn.004b3877
add esp, 0xc
jmp 0x4c3a92
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4c3b1c
dec eax
jne 0x4c38fa
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4c3b2a
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.004b3f8b
add esp, 0xc
cmp eax, 0xffffffff
je 0x4c3b50
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4c3b2a
jmp 0x4c38fa
push dword [esi]
call fcn.004b6783
pop ecx
call fcn.004ab2f8
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4c3b7d
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ffba0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret