Function at 0x490185
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x38
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 - 0x38], 0xc
mov dword [ebp - 0x34], ebx
je 0x4901b4
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x4901be
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00496333
test eax, eax
pop ecx
je 0x4901d9
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 0x4901f4
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 0x490211
test ecx, 0x74000
jne 0x49020d
cmp dword [ebp - 0x24], eax
je 0x490211
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, closesocket
je 0x49026b
dec eax
je 0x490255
dec eax
je 0x490250
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 0x49081e
mov dword [ebp - 8], edx
jmp 0x49026e
test cl, 8
je 0x490262
test ecx, 0x70000
jne 0x490250
mov dword [ebp - 8], 0x40000000
jmp 0x49026e
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4902af
sub eax, ecx
je 0x4902a6
sub eax, ecx
je 0x49029d
sub eax, ecx
je 0x490294
sub eax, 0x40
jne 0x49022a
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4902b2
mov dword [ebp - 0x10], 3
jmp 0x4902b2
mov dword [ebp - 0x10], 2
jmp 0x4902b2
mov dword [ebp - 0x10], 1
jmp 0x4902b2
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 0x490305
je 0x4902fc
cmp eax, ebx
je 0x4902fc
cmp eax, edi
je 0x4902f3
cmp eax, 0x200
je 0x490378
cmp eax, 0x300
jne 0x49022a
mov dword [ebp - 0x14], 2
jmp 0x490322
mov dword [ebp - 0x14], 4
jmp 0x490322
mov dword [ebp - 0x14], 3
jmp 0x490322
cmp eax, 0x500
je 0x49031b
cmp eax, 0x600
je 0x490378
cmp eax, edx
jne 0x49022a
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x490346
mov ecx, dword [0x4ebbf8]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x490346
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x490362
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x490362
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x49036b
or dword [ebp - 0xc], edi
test al, 0x20
je 0x490381
or dword [ebp - 0xc], 0x8000000
jmp 0x49038c
mov dword [ebp - 0x14], 5
jmp 0x490322
test al, 0x10
je 0x49038c
or dword [ebp - 0xc], 0x10000000
call fcn.00482d0d
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4903b2
call fcn.00481ecd
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00481eba
mov dword [eax], 0x18
jmp 0x490440
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileW]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x38]
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 0x49044c
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x490418
test byte [ebp + 0x10], 1
je 0x490418
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
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 0x49044c
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 0x4908da
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x49049d
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 0x490440
call fcn.00481eba
mov dword [eax], 0xd
jmp 0x490440
cmp eax, 2
jne 0x4904a8
or byte [ebp - 1], 0x40
jmp 0x4904b1
cmp eax, 3
jne 0x4904b1
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 0x490587
test cl, 0x80
je 0x490657
test byte [ebp + 0x10], 2
je 0x490587
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 0x490545
call fcn.00481ecd
cmp dword [eax], 0x83
je 0x490587
push dword [esi]
call fcn.0048beb1
jmp 0x49043f
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.004920f5
add esp, 0xc
test eax, eax
jne 0x490577
cmp word [ebp - 0x2c], 0x1a
jne 0x490577
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004960c3
add esp, 0xc
cmp eax, edi
je 0x490539
push ebx
push ebx
push dword [esi]
call fcn.0048bd63
add esp, 0xc
cmp eax, edi
je 0x490539
test byte [ebp - 1], 0x80
je 0x490657
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4905af
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4905ac
or dword [ebp + 0x10], edi
jmp 0x4905af
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4905fc
cmp eax, 0x10000
je 0x4905e8
cmp eax, 0x14000
je 0x4905e8
cmp eax, 0x20000
je 0x4905f6
cmp eax, 0x24000
je 0x4905f6
cmp eax, 0x40000
je 0x4905e2
cmp eax, 0x44000
jne 0x4905ff
mov byte [ebp - 2], 1
jmp 0x4905ff
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4905ff
mov byte [ebp - 2], 2
jmp 0x4905ff
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x490657
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x490657
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4907b1
cmp eax, 0x80000000
je 0x490778
cmp eax, ecx
jne 0x490657
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x490657
cmp eax, 2
jbe 0x490859
cmp eax, 4
jbe 0x49074a
cmp eax, 5
je 0x490859
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 0x4906c9
test byte [ebp + 0x10], 8
je 0x4906c9
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 0x4908d8
test byte [ebp + 0x10], 1
je 0x4908d8
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileW]
cmp eax, 0xffffffff
jne 0x4908c1
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 0x49043f
push 2
push ebx
push ebx
push dword [esi]
call fcn.00493e80
add esp, 0x10
or eax, edx
je 0x490859
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00493e80
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x490539
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004920f5
add esp, 0xc
cmp eax, 0xffffffff
je 0x490539
cmp eax, 2
je 0x4907fd
cmp eax, 3
jne 0x49084b
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4907fd
mov byte [ebp - 2], 1
jmp 0x490657
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x490657
cmp eax, 2
jbe 0x490859
cmp eax, 4
ja 0x49064e
push 2
push ebx
push ebx
push dword [esi]
call fcn.00493e80
add esp, 0x10
or eax, edx
je 0x490859
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00493e80
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x490657
jmp 0x490539
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x490825
push dword [esi]
call fcn.0048beb1
pop ecx
call fcn.00481eba
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4908da
cmp eax, 0xfeff
jne 0x49084b
push ebx
push 2
push dword [esi]
call fcn.0048bd63
add esp, 0xc
cmp eax, 0xffffffff
je 0x490539
mov byte [ebp - 2], 2
jmp 0x490657
push ebx
push ebx
push dword [esi]
call fcn.0048bd63
add esp, 0xc
jmp 0x4907ef
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x490879
dec eax
jne 0x490657
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x490887
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 0x4908ad
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x490887
jmp 0x490657
push dword [esi]
call fcn.0048beb1
pop ecx
call fcn.00481eba
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4908da
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