Function at 0x4fc0be
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 0x4fc0ed
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x4fc0f7
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00501eda
test eax, eax
pop ecx
je 0x4fc112
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004e04ac
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004e3987
test eax, eax
pop ecx
je 0x4fc12d
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004e04ac
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4fc14a
test ecx, 0x74000
jne 0x4fc146
cmp dword [ebp - 0x24], eax
je 0x4fc14a
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, connect
je 0x4fc1a4
dec eax
je 0x4fc18e
dec eax
je 0x4fc189
call fcn.004e1363
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004e1350
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004e05e0
add esp, 0x14
jmp 0x4fc756
mov dword [ebp - 8], edx
jmp 0x4fc1a7
test cl, 8
je 0x4fc19b
test ecx, 0x70000
jne 0x4fc189
mov dword [ebp - 8], 0x40000000
jmp 0x4fc1a7
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4fc1e8
sub eax, ecx
je 0x4fc1df
sub eax, ecx
je 0x4fc1d6
sub eax, ecx
je 0x4fc1cd
sub eax, 0x40
jne 0x4fc163
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4fc1eb
mov dword [ebp - 0x10], 3
jmp 0x4fc1eb
mov dword [ebp - 0x10], 2
jmp 0x4fc1eb
mov dword [ebp - 0x10], 1
jmp 0x4fc1eb
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 0x4fc23e
je 0x4fc235
cmp eax, ebx
je 0x4fc235
cmp eax, edi
je 0x4fc22c
cmp eax, 0x200
je 0x4fc2b1
cmp eax, 0x300
jne 0x4fc163
mov dword [ebp - 0x14], 2
jmp 0x4fc25b
mov dword [ebp - 0x14], 4
jmp 0x4fc25b
mov dword [ebp - 0x14], 3
jmp 0x4fc25b
cmp eax, 0x500
je 0x4fc254
cmp eax, 0x600
je 0x4fc2b1
cmp eax, edx
jne 0x4fc163
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4fc27f
mov ecx, dword [0x5e7dc0]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4fc27f
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4fc29b
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4fc29b
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4fc2a4
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4fc2ba
or dword [ebp - 0xc], 0x8000000
jmp 0x4fc2c5
mov dword [ebp - 0x14], 5
jmp 0x4fc25b
test al, 0x10
je 0x4fc2c5
or dword [ebp - 0xc], 0x10000000
call fcn.004f59f4
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4fc2eb
call fcn.004e1363
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004e1350
mov dword [eax], 0x18
jmp 0x4fc379
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 0x4fc385
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4fc351
test byte [ebp + 0x10], 1
je 0x4fc351
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 0x4fc385
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x5e8560]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004e1376
pop ecx
call fcn.004e1350
mov eax, dword [eax]
jmp 0x4fc812
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4fc3d6
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x5e8560]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004e1376
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4fc379
call fcn.004e1350
mov dword [eax], 0xd
jmp 0x4fc379
cmp eax, 2
jne 0x4fc3e1
or byte [ebp - 1], 0x40
jmp 0x4fc3ea
cmp eax, 3
jne 0x4fc3ea
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004f57c3
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x5e8560]
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 + 0x5e8560]
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 0x4fc4bf
test cl, 0x80
je 0x4fc58f
test byte [ebp + 0x10], 2
je 0x4fc4bf
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00501c8a
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4fc47e
call fcn.004e1363
cmp dword [eax], 0x83
je 0x4fc4bf
push dword [esi]
call fcn.004e7bd1
jmp 0x4fc378
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.004fba00
add esp, 0xc
test eax, eax
jne 0x4fc4af
cmp byte [ebp - 4], 0x1a
jne 0x4fc4af
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.005019d1
add esp, 0xc
cmp eax, edi
je 0x4fc472
push ebx
push ebx
push dword [esi]
call fcn.00501c8a
add esp, 0xc
cmp eax, edi
je 0x4fc472
test byte [ebp - 1], 0x80
je 0x4fc58f
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4fc4e7
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4fc4e4
or dword [ebp + 0x10], edi
jmp 0x4fc4e7
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4fc534
cmp eax, 0x10000
je 0x4fc520
cmp eax, 0x14000
je 0x4fc520
cmp eax, 0x20000
je 0x4fc52e
cmp eax, 0x24000
je 0x4fc52e
cmp eax, 0x40000
je 0x4fc51a
cmp eax, 0x44000
jne 0x4fc537
mov byte [ebp - 2], 1
jmp 0x4fc537
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4fc537
mov byte [ebp - 2], 2
jmp 0x4fc537
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4fc58f
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4fc58f
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4fc6e9
cmp eax, 0x80000000
je 0x4fc6b0
cmp eax, ecx
jne 0x4fc58f
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4fc58f
cmp eax, 2
jbe 0x4fc791
cmp eax, 4
jbe 0x4fc682
cmp eax, 5
je 0x4fc791
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5e8560]
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 + 0x5e8560]
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 0x4fc601
test byte [ebp + 0x10], 8
je 0x4fc601
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5e8560]
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 0x4fc810
test byte [ebp + 0x10], 1
je 0x4fc810
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 0x4fc7f9
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004e1376
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5e8560]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004f5840
pop ecx
jmp 0x4fc378
push 2
push ebx
push ebx
push dword [esi]
call fcn.004f4a32
add esp, 0x10
or eax, edx
je 0x4fc791
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004f4a32
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4fc472
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004fba00
add esp, 0xc
cmp eax, 0xffffffff
je 0x4fc472
cmp eax, 2
je 0x4fc735
cmp eax, 3
jne 0x4fc783
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4fc735
mov byte [ebp - 2], 1
jmp 0x4fc58f
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4fc58f
cmp eax, 2
jbe 0x4fc791
cmp eax, 4
ja 0x4fc586
push 2
push ebx
push ebx
push dword [esi]
call fcn.004f4a32
add esp, 0x10
or eax, edx
je 0x4fc791
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004f4a32
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4fc58f
jmp 0x4fc472
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4fc75d
push dword [esi]
call fcn.004e7bd1
pop ecx
call fcn.004e1350
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4fc812
cmp eax, 0xfeff
jne 0x4fc783
push ebx
push 2
push dword [esi]
call fcn.00501c8a
add esp, 0xc
cmp eax, 0xffffffff
je 0x4fc472
mov byte [ebp - 2], 2
jmp 0x4fc58f
push ebx
push ebx
push dword [esi]
call fcn.00501c8a
add esp, 0xc
jmp 0x4fc727
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4fc7b1
dec eax
jne 0x4fc58f
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4fc7bf
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.004eb1c4
add esp, 0xc
cmp eax, 0xffffffff
je 0x4fc7e5
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4fc7bf
jmp 0x4fc58f
push dword [esi]
call fcn.004e7bd1
pop ecx
call fcn.004e1350
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4fc812
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5e8560]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret