Function at 0x490227
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 0x490256
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x490260
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0049531b
test eax, eax
pop ecx
je 0x49027b
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0046ef98
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00477498
test eax, eax
pop ecx
je 0x490296
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0046ef98
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4902b3
test ecx, 0x74000
jne 0x4902af
cmp dword [ebp - 0x24], eax
je 0x4902b3
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocStringLen
je 0x49030d
dec eax
je 0x4902f7
dec eax
je 0x4902f2
call fcn.00473433
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00473420
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0046f0cc
add esp, 0x14
jmp 0x4908bf
mov dword [ebp - 8], edx
jmp 0x490310
test cl, 8
je 0x490304
test ecx, 0x70000
jne 0x4902f2
mov dword [ebp - 8], 0x40000000
jmp 0x490310
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x490351
sub eax, ecx
je 0x490348
sub eax, ecx
je 0x49033f
sub eax, ecx
je 0x490336
sub eax, 0x40
jne 0x4902cc
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x490354
mov dword [ebp - 0x10], 3
jmp 0x490354
mov dword [ebp - 0x10], 2
jmp 0x490354
mov dword [ebp - 0x10], 1
jmp 0x490354
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 0x4903a7
je 0x49039e
cmp eax, ebx
je 0x49039e
cmp eax, edi
je 0x490395
cmp eax, 0x200
je 0x49041a
cmp eax, 0x300
jne 0x4902cc
mov dword [ebp - 0x14], 2
jmp 0x4903c4
mov dword [ebp - 0x14], 4
jmp 0x4903c4
mov dword [ebp - 0x14], 3
jmp 0x4903c4
cmp eax, 0x500
je 0x4903bd
cmp eax, 0x600
je 0x49041a
cmp eax, edx
jne 0x4902cc
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4903e8
mov ecx, dword [0x4b9480]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4903e8
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x490404
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x490404
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x49040d
or dword [ebp - 0xc], edi
test al, 0x20
je 0x490423
or dword [ebp - 0xc], 0x8000000
jmp 0x49042e
mov dword [ebp - 0x14], 5
jmp 0x4903c4
test al, 0x10
je 0x49042e
or dword [ebp - 0xc], 0x10000000
call fcn.0048fdf3
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x490454
call fcn.00473433
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00473420
mov dword [eax], 0x18
jmp 0x4904e2
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 0x4904ee
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4904ba
test byte [ebp + 0x10], 1
je 0x4904ba
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 0x4904ee
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4b9de0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00473446
pop ecx
call fcn.00473420
mov eax, dword [eax]
jmp 0x49097b
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x49053f
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4b9de0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00473446
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4904e2
call fcn.00473420
mov dword [eax], 0xd
jmp 0x4904e2
cmp eax, 2
jne 0x49054a
or byte [ebp - 1], 0x40
jmp 0x490553
cmp eax, 3
jne 0x490553
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0048fbc2
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4b9de0]
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 + 0x4b9de0]
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 0x490628
test cl, 0x80
je 0x4906f8
test byte [ebp + 0x10], 2
je 0x490628
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0047c552
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4905e7
call fcn.00473433
cmp dword [eax], 0x83
je 0x490628
push dword [esi]
call fcn.0047b5b3
jmp 0x4904e1
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0047bc08
add esp, 0xc
test eax, eax
jne 0x490618
cmp byte [ebp - 4], 0x1a
jne 0x490618
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00494f60
add esp, 0xc
cmp eax, edi
je 0x4905db
push ebx
push ebx
push dword [esi]
call fcn.0047c552
add esp, 0xc
cmp eax, edi
je 0x4905db
test byte [ebp - 1], 0x80
je 0x4906f8
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x490650
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x49064d
or dword [ebp + 0x10], edi
jmp 0x490650
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x49069d
cmp eax, 0x10000
je 0x490689
cmp eax, 0x14000
je 0x490689
cmp eax, 0x20000
je 0x490697
cmp eax, 0x24000
je 0x490697
cmp eax, 0x40000
je 0x490683
cmp eax, 0x44000
jne 0x4906a0
mov byte [ebp - 2], 1
jmp 0x4906a0
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4906a0
mov byte [ebp - 2], 2
jmp 0x4906a0
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4906f8
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4906f8
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x490852
cmp eax, 0x80000000
je 0x490819
cmp eax, ecx
jne 0x4906f8
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4906f8
cmp eax, 2
jbe 0x4908fa
cmp eax, 4
jbe 0x4907eb
cmp eax, 5
je 0x4908fa
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4b9de0]
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 + 0x4b9de0]
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 0x49076a
test byte [ebp + 0x10], 8
je 0x49076a
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4b9de0]
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 0x490979
test byte [ebp + 0x10], 1
je 0x490979
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 0x490962
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00473446
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4b9de0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0048fc3f
pop ecx
jmp 0x4904e1
push 2
push ebx
push ebx
push dword [esi]
call fcn.0048c6af
add esp, 0x10
or eax, edx
je 0x4908fa
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0048c6af
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4905db
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0047bc08
add esp, 0xc
cmp eax, 0xffffffff
je 0x4905db
cmp eax, 2
je 0x49089e
cmp eax, 3
jne 0x4908ec
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x49089e
mov byte [ebp - 2], 1
jmp 0x4906f8
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4906f8
cmp eax, 2
jbe 0x4908fa
cmp eax, 4
ja 0x4906ef
push 2
push ebx
push ebx
push dword [esi]
call fcn.0048c6af
add esp, 0x10
or eax, edx
je 0x4908fa
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0048c6af
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4906f8
jmp 0x4905db
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4908c6
push dword [esi]
call fcn.0047b5b3
pop ecx
call fcn.00473420
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x49097b
cmp eax, 0xfeff
jne 0x4908ec
push ebx
push 2
push dword [esi]
call fcn.0047c552
add esp, 0xc
cmp eax, 0xffffffff
je 0x4905db
mov byte [ebp - 2], 2
jmp 0x4906f8
push ebx
push ebx
push dword [esi]
call fcn.0047c552
add esp, 0xc
jmp 0x490890
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x49091a
dec eax
jne 0x4906f8
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x490928
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.0048ce11
add esp, 0xc
cmp eax, 0xffffffff
je 0x49094e
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x490928
jmp 0x4906f8
push dword [esi]
call fcn.0047b5b3
pop ecx
call fcn.00473420
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x49097b
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4b9de0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret