Function at 0x490464
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 0x490493
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x49049d
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0048c0cf
test eax, eax
pop ecx
je 0x4904b8
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00478ade
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0047b4d4
test eax, eax
pop ecx
je 0x4904d3
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00478ade
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4904f0
test ecx, 0x74000
jne 0x4904ec
cmp dword [ebp - 0x24], eax
je 0x4904f0
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x49054a
dec eax
je 0x490534
dec eax
je 0x49052f
call fcn.0047fbea
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0047fbd7
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00478bda
add esp, 0x14
jmp 0x490afc
mov dword [ebp - 8], edx
jmp 0x49054d
test cl, 8
je 0x490541
test ecx, 0x70000
jne 0x49052f
mov dword [ebp - 8], 0x40000000
jmp 0x49054d
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x49058e
sub eax, ecx
je 0x490585
sub eax, ecx
je 0x49057c
sub eax, ecx
je 0x490573
sub eax, 0x40
jne 0x490509
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x490591
mov dword [ebp - 0x10], 3
jmp 0x490591
mov dword [ebp - 0x10], 2
jmp 0x490591
mov dword [ebp - 0x10], 1
jmp 0x490591
mov dword [ebp - 0x10], ebx
mov eax, dword [ebp + 0x10]
mov edx, 0x700
and eax, edx
mov ecx, 0x400
cmp eax, ecx
mov edi, pe_nt_image_headers32
jg 0x4905e4
je 0x4905db
cmp eax, ebx
je 0x4905db
cmp eax, edi
je 0x4905d2
cmp eax, 0x200
je 0x490657
cmp eax, 0x300
jne 0x490509
mov dword [ebp - 0x14], 2
jmp 0x490601
mov dword [ebp - 0x14], 4
jmp 0x490601
mov dword [ebp - 0x14], 3
jmp 0x490601
cmp eax, 0x500
je 0x4905fa
cmp eax, 0x600
je 0x490657
cmp eax, edx
jne 0x490509
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x490625
mov ecx, dword [0x4dc1a0]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x490625
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x490641
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x490641
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x49064a
or dword [ebp - 0xc], edi
test al, 0x20
je 0x490660
or dword [ebp - 0xc], 0x8000000
jmp 0x49066b
mov dword [ebp - 0x14], 5
jmp 0x490601
test al, 0x10
je 0x49066b
or dword [ebp - 0xc], 0x10000000
call fcn.0047c421
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x490691
call fcn.0047fbea
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0047fbd7
mov dword [eax], 0x18
jmp 0x49071f
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 0x49072b
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4906f7
test byte [ebp + 0x10], 1
je 0x4906f7
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 0x49072b
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4dd480]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.DLL_GetLastError]
push eax
call fcn.0047fbfd
pop ecx
call fcn.0047fbd7
mov eax, dword [eax]
jmp 0x490bb8
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.DLL_GetFileType]
cmp eax, ebx
jne 0x49077c
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4dd480]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.DLL_GetLastError]
mov esi, eax
push esi
call fcn.0047fbfd
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.DLL_CloseHandle]
cmp esi, ebx
jne 0x49071f
call fcn.0047fbd7
mov dword [eax], 0xd
jmp 0x49071f
cmp eax, 2
jne 0x490787
or byte [ebp - 1], 0x40
jmp 0x490790
cmp eax, 3
jne 0x490790
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0047c1f0
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4dd480]
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 + 0x4dd480]
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 0x490865
test cl, 0x80
je 0x490935
test byte [ebp + 0x10], 2
je 0x490865
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00484ec8
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x490824
call fcn.0047fbea
cmp dword [eax], 0x83
je 0x490865
push dword [esi]
call fcn.00484aa7
jmp 0x49071e
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.00485e91
add esp, 0xc
test eax, eax
jne 0x490855
cmp byte [ebp - 4], 0x1a
jne 0x490855
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0047b7b3
add esp, 0xc
cmp eax, edi
je 0x490818
push ebx
push ebx
push dword [esi]
call fcn.00484ec8
add esp, 0xc
cmp eax, edi
je 0x490818
test byte [ebp - 1], 0x80
je 0x490935
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x49088d
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x49088a
or dword [ebp + 0x10], edi
jmp 0x49088d
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4908da
cmp eax, 0x10000
je 0x4908c6
cmp eax, 0x14000
je 0x4908c6
cmp eax, 0x20000
je 0x4908d4
cmp eax, 0x24000
je 0x4908d4
cmp eax, 0x40000
je 0x4908c0
cmp eax, 0x44000
jne 0x4908dd
mov byte [ebp - 2], 1
jmp 0x4908dd
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4908dd
mov byte [ebp - 2], 2
jmp 0x4908dd
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x490935
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x490935
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x490a8f
cmp eax, 0x80000000
je 0x490a56
cmp eax, ecx
jne 0x490935
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x490935
cmp eax, 2
jbe 0x490b37
cmp eax, 4
jbe 0x490a28
cmp eax, 5
je 0x490b37
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4dd480]
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 + 0x4dd480]
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 0x4909a7
test byte [ebp + 0x10], 8
je 0x4909a7
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4dd480]
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 0x490bb6
test byte [ebp + 0x10], 1
je 0x490bb6
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 0x490b9f
call dword [sym.imp.KERNEL32.DLL_GetLastError]
push eax
call fcn.0047fbfd
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4dd480]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0047c26d
pop ecx
jmp 0x49071e
push 2
push ebx
push ebx
push dword [esi]
call fcn.0048c103
add esp, 0x10
or eax, edx
je 0x490b37
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0048c103
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x490818
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00485e91
add esp, 0xc
cmp eax, 0xffffffff
je 0x490818
cmp eax, 2
je 0x490adb
cmp eax, 3
jne 0x490b29
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x490adb
mov byte [ebp - 2], 1
jmp 0x490935
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x490935
cmp eax, 2
jbe 0x490b37
cmp eax, 4
ja 0x49092c
push 2
push ebx
push ebx
push dword [esi]
call fcn.0048c103
add esp, 0x10
or eax, edx
je 0x490b37
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0048c103
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x490935
jmp 0x490818
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x490b03
push dword [esi]
call fcn.00484aa7
pop ecx
call fcn.0047fbd7
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x490bb8
cmp eax, 0xfeff
jne 0x490b29
push ebx
push 2
push dword [esi]
call fcn.00484ec8
add esp, 0xc
cmp eax, 0xffffffff
je 0x490818
mov byte [ebp - 2], 2
jmp 0x490935
push ebx
push ebx
push dword [esi]
call fcn.00484ec8
add esp, 0xc
jmp 0x490acd
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x490b57
dec eax
jne 0x490935
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x490b65
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.0048bf37
add esp, 0xc
cmp eax, 0xffffffff
je 0x490b8b
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x490b65
jmp 0x490935
push dword [esi]
call fcn.00484aa7
pop ecx
call fcn.0047fbd7
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x490bb8
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4dd480]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret