Function at 0x450310
Capabilities:
Encode data using xor
Generate random numbers using the delphi lcg
Hash data with crc32
Read file on windows
Resolve function by parsing pe exports

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x1c
push ebx
push esi
push edi
mov edi, dword [ebp + 0xc]
xor eax, eax
xor ebx, ebx
mov dword [ebp - 8], eax
mov dword [ebp - 0xc], ebx
test edi, edi
je 0x45032c
mov byte [edi], al
test ecx, ecx
je 0x450627
mov esi, dword [ecx + 0x7c]
test esi, esi
je 0x450627
cmp dword [esi], eax
jne 0x45034f
mov eax, 0xffffff9c
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov eax, dword [ebp + 8]
test eax, eax
jne 0x45035d
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov ecx, dword [esi + 0x5c]
mov dword [esi + 0x10], edx
mov dword [esi + 0x14], eax
cmp eax, ecx
jbe 0x45036f
mov dword [esi + 0x14], ecx
mov eax, ecx
test eax, eax
je 0x45061e
nop word [eax + eax]
mov ebx, dword [esi + 8]
test ebx, ebx
jne 0x4504d1
mov eax, dword [esi + 0x58]
test eax, eax
je 0x4504d1
mov ecx, dword [esi + 0x60]
mov ebx, 0x4000
mov edx, dword [esi + 0x68]
cmp eax, ebx
cmovb ebx, eax
add edx, dword [esi + 0x3c]
cmp byte [ecx], 0
je 0x4503cd
cmp byte [ecx + 1], 0
je 0x4505fe
mov eax, dword [ecx + 0xc]
push 0
push 0
add eax, edx
push eax
push dword [ecx + 4]
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
jmp 0x4503d0
mov dword [ecx + 0x1c], edx
mov edi, dword [esi + 0x60]
mov dword [ebp - 0x10], edi
cmp byte [edi], 0
je 0x4503fa
push 0
lea eax, [ebp - 0x1c]
push eax
push ebx
push dword [esi]
push dword [edi + 4]
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
jne 0x4503f5
mov byte [edi + 8], 1
mov eax, dword [ebp - 0x1c]
jmp 0x450428
mov edx, dword [edi + 0x1c]
mov ecx, dword [edi + 0x18]
mov edi, ecx
sub edi, edx
lea eax, [edx + ebx]
cmp eax, ecx
mov eax, dword [ebp - 0x10]
cmovbe edi, ebx
push edi
mov eax, dword [eax + 0x14]
add eax, edx
push eax
push dword [esi]
call fcn.00455f90
mov eax, dword [ebp - 0x10]
add esp, 0xc
add dword [eax + 0x1c], edi
mov eax, edi
xor edx, edx
div ebx
cmp eax, 1
jne 0x4505fe
add dword [esi + 0x3c], ebx
sub dword [esi + 0x58], ebx
cmp byte [esi + 0x6c], 0
mov eax, dword [esi]
mov dword [ebp - 0x10], eax
mov dword [esi + 4], eax
mov dword [esi + 8], ebx
je 0x4504d1
xor ecx, ecx
mov eax, ebx
mov dword [ebp - 0x18], ecx
test eax, eax
je 0x4504d1
nop dword [eax + eax]
mov edi, dword [esi + 0x78]
mov eax, edi
and eax, 0xfffd
or eax, 2
mov edx, eax
xor edx, 1
imul edx, eax
mov eax, dword [ebp - 0x10]
shr edx, 8
xor dl, byte [ecx + eax]
mov ecx, dword [esi + 0x70]
movsx eax, dl
xor eax, ecx
shr ecx, 8
movzx eax, al
mov eax, dword [eax*4 + 0x4809e0]
xor eax, ecx
mov ecx, dword [ebp - 0x18]
mov dword [esi + 0x70], eax
movzx eax, al
add eax, dword [esi + 0x74]
imul eax, eax, 0x8088405
inc eax
mov dword [esi + 0x74], eax
shr eax, 0x18
xor eax, edi
shr edi, 8
movzx eax, al
xor edi, dword [eax*4 + 0x4809e0]
mov eax, dword [ebp - 0x10]
mov dword [esi + 0x78], edi
mov byte [ecx + eax], dl
inc ecx
mov dword [ebp - 0x18], ecx
cmp ecx, ebx
jb 0x450460
mov ebx, dword [esi + 8]
mov edx, dword [esi + 0x7c]
mov ecx, ebx
cmp edx, ebx
cmovbe ecx, edx
mov dword [ebp - 0x18], ecx
test ecx, ecx
je 0x450511
mov eax, dword [esi + 4]
add eax, ecx
mov cl, byte [eax - 1]
mov byte [ebp - 1], cl
mov ecx, dword [ebp - 0x18]
sub ebx, ecx
sub dword [esi + 0x5c], ecx
sub edx, ecx
mov dword [esi + 8], ebx
mov dword [esi + 4], eax
mov dword [esi + 0x7c], edx
jne 0x450511
mov al, byte [ebp - 1]
cmp al, byte [esi + 0x80]
jne 0x450608
cmp dword [esi + 0x64], 0
jne 0x45059d
mov eax, dword [esi + 0x14]
cmp eax, ebx
mov edi, eax
mov dword [ebp - 0x14], eax
cmovae edi, ebx
xor edx, edx
mov dword [ebp - 0x18], edi
test edi, edi
je 0x45054b
mov eax, dword [esi + 4]
mov ecx, dword [esi + 0x10]
mov al, byte [edx + eax]
mov byte [edx + ecx], al
inc edx
cmp edx, edi
jb 0x450531
mov eax, dword [esi + 0x14]
mov ebx, dword [esi + 8]
mov dword [ebp - 0x14], eax
mov edi, dword [esi + 0x10]
mov edx, edi
push dword [ebp - 0x18]
mov ecx, dword [esi + 0x50]
call fcn.0044ec10
mov ecx, dword [ebp - 0x18]
add esp, 4
sub dword [esi + 0x5c], ecx
sub ebx, ecx
add dword [esi + 4], ecx
add dword [esi + 0x18], ecx
mov dword [esi + 0x50], eax
mov eax, dword [ebp - 0x14]
sub eax, ecx
mov dword [esi + 8], ebx
mov ebx, dword [ebp - 0xc]
mov dword [esi + 0x14], eax
add ebx, ecx
cmp dword [esi + 0x5c], 0
lea eax, [edi + ecx]
mov dword [esi + 0x10], eax
mov eax, dword [ebp - 8]
mov dword [ebp - 0xc], ebx
jne 0x4505e9
mov edi, dword [ebp + 0xc]
test edi, edi
je 0x4505e9
mov byte [edi], 1
jmp 0x4505e9
mov edi, dword [esi + 0x18]
lea ecx, [esi + 4]
mov ebx, dword [esi + 0x10]
call fcn.0044f160
mov ecx, dword [esi + 0x50]
mov edx, ebx
mov dword [ebp - 8], eax
mov eax, dword [esi + 0x18]
sub eax, edi
push eax
mov dword [ebp - 0x18], eax
call fcn.0044ec10
mov ecx, dword [esi + 0x5c]
add esp, 4
mov ebx, dword [ebp - 0xc]
sub ecx, dword [ebp - 0x18]
add ebx, dword [ebp - 0x18]
mov dword [esi + 0x50], eax
mov eax, dword [ebp - 8]
mov dword [esi + 0x5c], ecx
mov dword [ebp - 0xc], ebx
cmp eax, 1
je 0x450614
test ecx, ecx
je 0x450614
test eax, eax
jne 0x45062c
cmp dword [esi + 0x14], 0
ja 0x450380
test eax, eax
je 0x45061e
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
or eax, 0xffffffff
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov eax, 0xffffff96
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov ecx, dword [ebp + 0xc]
test ecx, ecx
je 0x45061e
mov byte [ecx], 1
mov eax, ebx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov eax, 0xffffff9a
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret