Function at 0x48c03e
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 0x48c06d
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x48c077
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00496333
test eax, eax
pop ecx
je 0x48c092
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0047f13d
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004825e4
test eax, eax
pop ecx
je 0x48c0ad
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0047f13d
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x48c0ca
test ecx, 0x74000
jne 0x48c0c6
cmp dword [ebp - 0x24], eax
je 0x48c0ca
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, closesocket
je 0x48c124
dec eax
je 0x48c10e
dec eax
je 0x48c109
call fcn.00481ecd
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00481eba
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0047f239
add esp, 0x14
jmp 0x48c6d6
mov dword [ebp - 8], edx
jmp 0x48c127
test cl, 8
je 0x48c11b
test ecx, 0x70000
jne 0x48c109
mov dword [ebp - 8], 0x40000000
jmp 0x48c127
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x48c168
sub eax, ecx
je 0x48c15f
sub eax, ecx
je 0x48c156
sub eax, ecx
je 0x48c14d
sub eax, 0x40
jne 0x48c0e3
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x48c16b
mov dword [ebp - 0x10], 3
jmp 0x48c16b
mov dword [ebp - 0x10], 2
jmp 0x48c16b
mov dword [ebp - 0x10], 1
jmp 0x48c16b
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 0x48c1be
je 0x48c1b5
cmp eax, ebx
je 0x48c1b5
cmp eax, edi
je 0x48c1ac
cmp eax, 0x200
je 0x48c231
cmp eax, 0x300
jne 0x48c0e3
mov dword [ebp - 0x14], 2
jmp 0x48c1db
mov dword [ebp - 0x14], 4
jmp 0x48c1db
mov dword [ebp - 0x14], 3
jmp 0x48c1db
cmp eax, 0x500
je 0x48c1d4
cmp eax, 0x600
je 0x48c231
cmp eax, edx
jne 0x48c0e3
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x48c1ff
mov ecx, dword [0x4ebbf8]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x48c1ff
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x48c21b
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x48c21b
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x48c224
or dword [ebp - 0xc], edi
test al, 0x20
je 0x48c23a
or dword [ebp - 0xc], 0x8000000
jmp 0x48c245
mov dword [ebp - 0x14], 5
jmp 0x48c1db
test al, 0x10
je 0x48c245
or dword [ebp - 0xc], 0x10000000
call fcn.00482d0d
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x48c26b
call fcn.00481ecd
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00481eba
mov dword [eax], 0x18
jmp 0x48c2f9
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 0x48c305
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x48c2d1
test byte [ebp + 0x10], 1
je 0x48c2d1
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 0x48c305
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4f13a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00481ee0
pop ecx
call fcn.00481eba
mov eax, dword [eax]
jmp 0x48c792
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x48c356
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4f13a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00481ee0
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x48c2f9
call fcn.00481eba
mov dword [eax], 0xd
jmp 0x48c2f9
cmp eax, 2
jne 0x48c361
or byte [ebp - 1], 0x40
jmp 0x48c36a
cmp eax, 3
jne 0x48c36a
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00482adc
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4f13a0]
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 + 0x4f13a0]
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 0x48c43f
test cl, 0x80
je 0x48c50f
test byte [ebp + 0x10], 2
je 0x48c43f
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0048bd63
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x48c3fe
call fcn.00481ecd
cmp dword [eax], 0x83
je 0x48c43f
push dword [esi]
call fcn.0048beb1
jmp 0x48c2f8
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.004920f5
add esp, 0xc
test eax, eax
jne 0x48c42f
cmp byte [ebp - 4], 0x1a
jne 0x48c42f
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004960c3
add esp, 0xc
cmp eax, edi
je 0x48c3f2
push ebx
push ebx
push dword [esi]
call fcn.0048bd63
add esp, 0xc
cmp eax, edi
je 0x48c3f2
test byte [ebp - 1], 0x80
je 0x48c50f
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x48c467
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x48c464
or dword [ebp + 0x10], edi
jmp 0x48c467
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x48c4b4
cmp eax, 0x10000
je 0x48c4a0
cmp eax, 0x14000
je 0x48c4a0
cmp eax, 0x20000
je 0x48c4ae
cmp eax, 0x24000
je 0x48c4ae
cmp eax, 0x40000
je 0x48c49a
cmp eax, 0x44000
jne 0x48c4b7
mov byte [ebp - 2], 1
jmp 0x48c4b7
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x48c4b7
mov byte [ebp - 2], 2
jmp 0x48c4b7
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x48c50f
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x48c50f
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x48c669
cmp eax, 0x80000000
je 0x48c630
cmp eax, ecx
jne 0x48c50f
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x48c50f
cmp eax, 2
jbe 0x48c711
cmp eax, 4
jbe 0x48c602
cmp eax, 5
je 0x48c711
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4f13a0]
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 + 0x4f13a0]
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 0x48c581
test byte [ebp + 0x10], 8
je 0x48c581
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4f13a0]
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 0x48c790
test byte [ebp + 0x10], 1
je 0x48c790
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 0x48c779
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00481ee0
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4f13a0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00482b59
pop ecx
jmp 0x48c2f8
push 2
push ebx
push ebx
push dword [esi]
call fcn.00493e80
add esp, 0x10
or eax, edx
je 0x48c711
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00493e80
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x48c3f2
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004920f5
add esp, 0xc
cmp eax, 0xffffffff
je 0x48c3f2
cmp eax, 2
je 0x48c6b5
cmp eax, 3
jne 0x48c703
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x48c6b5
mov byte [ebp - 2], 1
jmp 0x48c50f
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x48c50f
cmp eax, 2
jbe 0x48c711
cmp eax, 4
ja 0x48c506
push 2
push ebx
push ebx
push dword [esi]
call fcn.00493e80
add esp, 0x10
or eax, edx
je 0x48c711
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00493e80
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x48c50f
jmp 0x48c3f2
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x48c6dd
push dword [esi]
call fcn.0048beb1
pop ecx
call fcn.00481eba
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x48c792
cmp eax, 0xfeff
jne 0x48c703
push ebx
push 2
push dword [esi]
call fcn.0048bd63
add esp, 0xc
cmp eax, 0xffffffff
je 0x48c3f2
mov byte [ebp - 2], 2
jmp 0x48c50f
push ebx
push ebx
push dword [esi]
call fcn.0048bd63
add esp, 0xc
jmp 0x48c6a7
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x48c731
dec eax
jne 0x48c50f
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x48c73f
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.0048cefd
add esp, 0xc
cmp eax, 0xffffffff
je 0x48c765
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x48c73f
jmp 0x48c50f
push dword [esi]
call fcn.0048beb1
pop ecx
call fcn.00481eba
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x48c792
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4f13a0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret