Function at 0x4b4492
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 0x4b44c1
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x4b44cb
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004aec71
test eax, eax
pop ecx
je 0x4b44e6
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0049bda5
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004a09f6
test eax, eax
pop ecx
je 0x4b4501
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0049bda5
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4b451e
test ecx, 0x74000
jne 0x4b451a
cmp dword [ebp - 0x24], eax
je 0x4b451e
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x4b4578
dec eax
je 0x4b4562
dec eax
je 0x4b455d
call fcn.004a2013
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004a2000
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0049bea1
add esp, 0x14
jmp 0x4b4b2a
mov dword [ebp - 8], edx
jmp 0x4b457b
test cl, 8
je 0x4b456f
test ecx, 0x70000
jne 0x4b455d
mov dword [ebp - 8], 0x40000000
jmp 0x4b457b
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4b45bc
sub eax, ecx
je 0x4b45b3
sub eax, ecx
je 0x4b45aa
sub eax, ecx
je 0x4b45a1
sub eax, 0x40
jne 0x4b4537
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4b45bf
mov dword [ebp - 0x10], 3
jmp 0x4b45bf
mov dword [ebp - 0x10], 2
jmp 0x4b45bf
mov dword [ebp - 0x10], 1
jmp 0x4b45bf
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 0x4b4612
je 0x4b4609
cmp eax, ebx
je 0x4b4609
cmp eax, edi
je 0x4b4600
cmp eax, 0x200
je 0x4b4685
cmp eax, 0x300
jne 0x4b4537
mov dword [ebp - 0x14], 2
jmp 0x4b462f
mov dword [ebp - 0x14], 4
jmp 0x4b462f
mov dword [ebp - 0x14], 3
jmp 0x4b462f
cmp eax, 0x500
je 0x4b4628
cmp eax, 0x600
je 0x4b4685
cmp eax, edx
jne 0x4b4537
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4b4653
mov ecx, dword [0x50a8f8]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4b4653
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4b466f
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4b466f
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4b4678
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4b468e
or dword [ebp - 0xc], 0x8000000
jmp 0x4b4699
mov dword [ebp - 0x14], 5
jmp 0x4b462f
test al, 0x10
je 0x4b4699
or dword [ebp - 0xc], 0x10000000
call fcn.0049ea2c
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4b46bf
call fcn.004a2013
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004a2000
mov dword [eax], 0x18
jmp 0x4b474d
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 0x4b4759
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4b4725
test byte [ebp + 0x10], 1
je 0x4b4725
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 0x4b4759
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x50c540]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004a2026
pop ecx
call fcn.004a2000
mov eax, dword [eax]
jmp 0x4b4be6
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4b47aa
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x50c540]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004a2026
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4b474d
call fcn.004a2000
mov dword [eax], 0xd
jmp 0x4b474d
cmp eax, 2
jne 0x4b47b5
or byte [ebp - 1], 0x40
jmp 0x4b47be
cmp eax, 3
jne 0x4b47be
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0049e7fb
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x50c540]
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 + 0x50c540]
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 0x4b4893
test cl, 0x80
je 0x4b4963
test byte [ebp + 0x10], 2
je 0x4b4893
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004a841c
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4b4852
call fcn.004a2013
cmp dword [eax], 0x83
je 0x4b4893
push dword [esi]
call fcn.004a8287
jmp 0x4b474c
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.004a93e5
add esp, 0xc
test eax, eax
jne 0x4b4883
cmp byte [ebp - 4], 0x1a
jne 0x4b4883
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0049e647
add esp, 0xc
cmp eax, edi
je 0x4b4846
push ebx
push ebx
push dword [esi]
call fcn.004a841c
add esp, 0xc
cmp eax, edi
je 0x4b4846
test byte [ebp - 1], 0x80
je 0x4b4963
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4b48bb
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4b48b8
or dword [ebp + 0x10], edi
jmp 0x4b48bb
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4b4908
cmp eax, 0x10000
je 0x4b48f4
cmp eax, 0x14000
je 0x4b48f4
cmp eax, 0x20000
je 0x4b4902
cmp eax, 0x24000
je 0x4b4902
cmp eax, 0x40000
je 0x4b48ee
cmp eax, 0x44000
jne 0x4b490b
mov byte [ebp - 2], 1
jmp 0x4b490b
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4b490b
mov byte [ebp - 2], 2
jmp 0x4b490b
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4b4963
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4b4963
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4b4abd
cmp eax, 0x80000000
je 0x4b4a84
cmp eax, ecx
jne 0x4b4963
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4b4963
cmp eax, 2
jbe 0x4b4b65
cmp eax, 4
jbe 0x4b4a56
cmp eax, 5
je 0x4b4b65
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x50c540]
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 + 0x50c540]
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 0x4b49d5
test byte [ebp + 0x10], 8
je 0x4b49d5
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x50c540]
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 0x4b4be4
test byte [ebp + 0x10], 1
je 0x4b4be4
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 0x4b4bcd
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004a2026
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x50c540]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0049e878
pop ecx
jmp 0x4b474c
push 2
push ebx
push ebx
push dword [esi]
call fcn.004aeca5
add esp, 0x10
or eax, edx
je 0x4b4b65
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004aeca5
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4b4846
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004a93e5
add esp, 0xc
cmp eax, 0xffffffff
je 0x4b4846
cmp eax, 2
je 0x4b4b09
cmp eax, 3
jne 0x4b4b57
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4b4b09
mov byte [ebp - 2], 1
jmp 0x4b4963
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4b4963
cmp eax, 2
jbe 0x4b4b65
cmp eax, 4
ja 0x4b495a
push 2
push ebx
push ebx
push dword [esi]
call fcn.004aeca5
add esp, 0x10
or eax, edx
je 0x4b4b65
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004aeca5
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4b4963
jmp 0x4b4846
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4b4b31
push dword [esi]
call fcn.004a8287
pop ecx
call fcn.004a2000
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4b4be6
cmp eax, 0xfeff
jne 0x4b4b57
push ebx
push 2
push dword [esi]
call fcn.004a841c
add esp, 0xc
cmp eax, 0xffffffff
je 0x4b4846
mov byte [ebp - 2], 2
jmp 0x4b4963
push ebx
push ebx
push dword [esi]
call fcn.004a841c
add esp, 0xc
jmp 0x4b4afb
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4b4b85
dec eax
jne 0x4b4963
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4b4b93
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.004ae9b4
add esp, 0xc
cmp eax, 0xffffffff
je 0x4b4bb9
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4b4b93
jmp 0x4b4963
push dword [esi]
call fcn.004a8287
pop ecx
call fcn.004a2000
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4b4be6
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x50c540]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret