Function at 0x4b15ff
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 0x4b162e
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x4b1638
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004ab3f5
test eax, eax
pop ecx
je 0x4b1653
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00495fe0
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0049b06f
test eax, eax
pop ecx
je 0x4b166e
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00495fe0
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4b168b
test ecx, 0x74000
jne 0x4b1687
cmp dword [ebp - 0x24], eax
je 0x4b168b
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, closesocket
je 0x4b16e5
dec eax
je 0x4b16cf
dec eax
je 0x4b16ca
call fcn.0049b456
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0049b443
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004960dc
add esp, 0x14
jmp 0x4b1c97
mov dword [ebp - 8], edx
jmp 0x4b16e8
test cl, 8
je 0x4b16dc
test ecx, 0x70000
jne 0x4b16ca
mov dword [ebp - 8], 0x40000000
jmp 0x4b16e8
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4b1729
sub eax, ecx
je 0x4b1720
sub eax, ecx
je 0x4b1717
sub eax, ecx
je 0x4b170e
sub eax, 0x40
jne 0x4b16a4
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4b172c
mov dword [ebp - 0x10], 3
jmp 0x4b172c
mov dword [ebp - 0x10], 2
jmp 0x4b172c
mov dword [ebp - 0x10], 1
jmp 0x4b172c
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 0x4b177f
je 0x4b1776
cmp eax, ebx
je 0x4b1776
cmp eax, edi
je 0x4b176d
cmp eax, 0x200
je 0x4b17f2
cmp eax, 0x300
jne 0x4b16a4
mov dword [ebp - 0x14], 2
jmp 0x4b179c
mov dword [ebp - 0x14], 4
jmp 0x4b179c
mov dword [ebp - 0x14], 3
jmp 0x4b179c
cmp eax, 0x500
je 0x4b1795
cmp eax, 0x600
je 0x4b17f2
cmp eax, edx
jne 0x4b16a4
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4b17c0
mov ecx, dword [0x4ea084]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4b17c0
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4b17dc
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4b17dc
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4b17e5
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4b17fb
or dword [ebp - 0xc], 0x8000000
jmp 0x4b1806
mov dword [ebp - 0x14], 5
jmp 0x4b179c
test al, 0x10
je 0x4b1806
or dword [ebp - 0xc], 0x10000000
call fcn.0049ae27
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4b182c
call fcn.0049b456
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0049b443
mov dword [eax], 0x18
jmp 0x4b18ba
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 0x4b18c6
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4b1892
test byte [ebp + 0x10], 1
je 0x4b1892
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 0x4b18c6
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x54e9e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0049b469
pop ecx
call fcn.0049b443
mov eax, dword [eax]
jmp 0x4b1d53
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4b1917
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x54e9e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0049b469
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4b18ba
call fcn.0049b443
mov dword [eax], 0xd
jmp 0x4b18ba
cmp eax, 2
jne 0x4b1922
or byte [ebp - 1], 0x40
jmp 0x4b192b
cmp eax, 3
jne 0x4b192b
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0049abf6
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x54e9e0]
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 + 0x54e9e0]
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 0x4b1a00
test cl, 0x80
je 0x4b1ad0
test byte [ebp + 0x10], 2
je 0x4b1a00
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004a5fe5
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4b19bf
call fcn.0049b456
cmp dword [eax], 0x83
je 0x4b1a00
push dword [esi]
call fcn.004a364d
jmp 0x4b18b9
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.004a56a3
add esp, 0xc
test eax, eax
jne 0x4b19f0
cmp byte [ebp - 4], 0x1a
jne 0x4b19f0
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0049baec
add esp, 0xc
cmp eax, edi
je 0x4b19b3
push ebx
push ebx
push dword [esi]
call fcn.004a5fe5
add esp, 0xc
cmp eax, edi
je 0x4b19b3
test byte [ebp - 1], 0x80
je 0x4b1ad0
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4b1a28
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4b1a25
or dword [ebp + 0x10], edi
jmp 0x4b1a28
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4b1a75
cmp eax, 0x10000
je 0x4b1a61
cmp eax, 0x14000
je 0x4b1a61
cmp eax, 0x20000
je 0x4b1a6f
cmp eax, 0x24000
je 0x4b1a6f
cmp eax, 0x40000
je 0x4b1a5b
cmp eax, 0x44000
jne 0x4b1a78
mov byte [ebp - 2], 1
jmp 0x4b1a78
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4b1a78
mov byte [ebp - 2], 2
jmp 0x4b1a78
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4b1ad0
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4b1ad0
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4b1c2a
cmp eax, 0x80000000
je 0x4b1bf1
cmp eax, ecx
jne 0x4b1ad0
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4b1ad0
cmp eax, 2
jbe 0x4b1cd2
cmp eax, 4
jbe 0x4b1bc3
cmp eax, 5
je 0x4b1cd2
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x54e9e0]
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 + 0x54e9e0]
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 0x4b1b42
test byte [ebp + 0x10], 8
je 0x4b1b42
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x54e9e0]
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 0x4b1d51
test byte [ebp + 0x10], 1
je 0x4b1d51
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 0x4b1d3a
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0049b469
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x54e9e0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0049ac73
pop ecx
jmp 0x4b18b9
push 2
push ebx
push ebx
push dword [esi]
call fcn.004a8e22
add esp, 0x10
or eax, edx
je 0x4b1cd2
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004a8e22
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4b19b3
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004a56a3
add esp, 0xc
cmp eax, 0xffffffff
je 0x4b19b3
cmp eax, 2
je 0x4b1c76
cmp eax, 3
jne 0x4b1cc4
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4b1c76
mov byte [ebp - 2], 1
jmp 0x4b1ad0
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4b1ad0
cmp eax, 2
jbe 0x4b1cd2
cmp eax, 4
ja 0x4b1ac7
push 2
push ebx
push ebx
push dword [esi]
call fcn.004a8e22
add esp, 0x10
or eax, edx
je 0x4b1cd2
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004a8e22
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4b1ad0
jmp 0x4b19b3
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4b1c9e
push dword [esi]
call fcn.004a364d
pop ecx
call fcn.0049b443
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4b1d53
cmp eax, 0xfeff
jne 0x4b1cc4
push ebx
push 2
push dword [esi]
call fcn.004a5fe5
add esp, 0xc
cmp eax, 0xffffffff
je 0x4b19b3
mov byte [ebp - 2], 2
jmp 0x4b1ad0
push ebx
push ebx
push dword [esi]
call fcn.004a5fe5
add esp, 0xc
jmp 0x4b1c68
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4b1cf2
dec eax
jne 0x4b1ad0
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4b1d00
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.0049a3e3
add esp, 0xc
cmp eax, 0xffffffff
je 0x4b1d26
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4b1d00
jmp 0x4b1ad0
push dword [esi]
call fcn.004a364d
pop ecx
call fcn.0049b443
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4b1d53
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x54e9e0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret