Function at 0x601a10
Capabilities:
Check os version
Create directory
Get memory capacity
Persist via run registry key
Query or enumerate registry value

Disassembly:
mov dword [0x813d38], 0
push ebx
fld dword [0x813d38]
push esi
push edi
sub esp, 0xd8
mov dword [0x9b48fc], 0x813d28
fstp dword [0x813d34]
mov dword [0x813d30], 0
mov dword [0x813d40], 0
mov dword [0x813d44], 0
mov dword [0x813d48], 0
mov dword [0x813d4c], 0
call fcn.0048e110
mov dword [esp + 0xc0], 0
lea eax, [esp + 0xc0]
push eax
push 0x20019
push 0
push str.SoftwareMicrosoftWindowsCurrentVersionExplorerShell_Folders
push 0x80000001
call dword [sym.imp.advapi32.dll_RegOpenKeyExA]
test eax, eax
jne 0x601b4e
mov dword [esp + 0xbc], 0x100
lea eax, [esp + 0xbc]
push eax
lea eax, [esp + 0xbc]
push 0x783ef8
push eax
mov eax, dword [esp + 0xcc]
push 0
push str.Personal
push eax
call dword [sym.imp.advapi32.dll_RegQueryValueExA]
test eax, eax
jne 0x601b40
mov eax, dword [esp + 0xc0]
push eax
call dword [sym.imp.advapi32.dll_RegCloseKey]
push str.GTA_Vice_City_User_Files
push 0x783ef8
call fcn.00642600
pop ecx
pop ecx
push 0
push 0x2000080
push 3
push 0
push 1
push 0x80000000
push 0x783ef8
call dword [sym.imp.kernel32.dll_CreateFileA]
cmp eax, 0xffffffff
jne 0x601b30
push 0
push 0x783ef8
call dword [sym.imp.kernel32.dll_CreateDirectoryA]
jmp 0x601b5a
push eax
call dword [sym.imp.kernel32.dll_CloseHandle]
jmp 0x601b5a
mov eax, dword [esp + 0xc0]
push eax
call dword [sym.imp.advapi32.dll_RegCloseKey]
mov edi, 0x783ef8
mov esi, str.data
movsd dword es:[edi], dword [esi]
movsb byte es:[edi], byte [esi]
mov eax, 0x783ef8
push eax
call fcn.0061d910
pop ecx
call fcn.00600b00
mov dword [0x9b5f10], 0
mov eax, 1
cpuid
mov edi, edx
mov eax, 0x80000000
cpuid
cmp eax, 0x80000000
jbe 0x601b97
mov eax, 0x80000001
cpuid
mov esi, edx
jmp 0x601b9b
xor eax, eax
mov esi, eax
xor eax, eax
cpuid
mov dword [0x6d5e18], ebx
mov dword [str.ownVendr], edx
mov dword [0x6d5e20], ecx
push 0x6d5e18
push str.Running_on_a__s
call fcn.00401000
mov eax, edi
pop ecx
and eax, 0x800000
pop ecx
je 0x601bd6
push str.with_MMX
call fcn.00401000
pop ecx
and edi, 0x2000000
je 0x601be9
push str.with_SSE
call fcn.00401000
pop ecx
and esi, 0x80000000
je 0x601bfc
push str.with_3DNow
call fcn.00401000
pop ecx
mov dword [esp + 4], 0x94
lea eax, [esp + 4]
push eax
call dword [sym.imp.kernel32.dll_GetVersionExA]
mov eax, dword [esp + 0x14]
mov dword [0x7f3c68], 0
cmp eax, 2
jne 0x601c80
mov eax, dword [esp + 8]
cmp eax, 4
jne 0x601c45
push str.Operating_System_is_WinNT_n
call fcn.00401000
mov dword [0x7f3c68], 2
pop ecx
jmp 0x601cc6
cmp eax, 5
jne 0x601c61
push str.Operating_System_is_Win2000_n
call fcn.00401000
mov dword [0x7f3c68], 3
pop ecx
jmp 0x601cc6
cmp eax, 5
jbe 0x601cc6
push str.Operating_System_is_WinXP_or_greater_n
call fcn.00401000
mov dword [0x7f3c68], 4
pop ecx
jmp 0x601cc6
cmp eax, 1
jne 0x601cc6
mov eax, dword [esp + 8]
cmp eax, 4
ja 0x601c9a
cmp eax, 4
jne 0x601cb1
cmp dword [esp + 0xc], 0
je 0x601cb1
push str.Operating_System_is_Win98_n
call fcn.00401000
mov dword [0x7f3c68], 1
pop ecx
jmp 0x601cc6
push str.Operating_System_is_Win95_n
call fcn.00401000
mov dword [0x7f3c68], 0
pop ecx
mov ecx, 0x869638
call fcn.0048fe86
call fcn.00601eb0
push eax
mov dword [0x7f3c6c], eax
push str.DirectX_version_0x_x_n
call fcn.00401000
cmp dword [0x7f3c68], 0
pop ecx
pop ecx
jne 0x601d26
mov ecx, 0x94b228
push 0
push str.WIN_TTL
call fcn.00584f50
mov ecx, 0x94b228
push eax
push str.WIN_95
call fcn.00584f50
push eax
push 0
call dword [sym.imp.user32.dll_MessageBoxW]
xor eax, eax
add esp, 0xd8
pop edi
pop esi
pop ebx
ret
cmp dword [0x7f3c6c], 0x801
jae 0x601d68
mov ecx, 0x94b228
push 0
push str.WIN_TTL
call fcn.00584f50
mov ecx, 0x94b228
push eax
push str.WIN_DX
call fcn.00584f50
push eax
push 0
call dword [sym.imp.user32.dll_MessageBoxW]
xor eax, eax
add esp, 0xd8
pop edi
pop esi
pop ebx
ret
lea eax, [esp + 0x98]
push eax
call dword [sym.imp.kernel32.dll_GlobalMemoryStatus]
mov eax, dword [esp + 0xa0]
mov dword [0x7f3c70], eax
mov eax, dword [esp + 0xa4]
mov dword [0x7f3c74], eax
mov eax, dword [esp + 0xb0]
mov dword [0x7f3c78], eax
mov eax, dword [esp + 0xb4]
mov dword [0x7f3c7c], eax
lea eax, [esp + 0xd4]
push 0
push 0x67ec9c
push eax
push 0
call sub.ddraw.dll_DirectDrawCreateEx
test eax, eax
jl 0x601e04
xor eax, eax
lea edi, [esp + 0xc4]
stosd dword es:[edi], eax
push 0x7f3c84
push 0x7f3c80
stosd dword es:[edi], eax
stosd dword es:[edi], eax
stosd dword es:[edi], eax
mov eax, dword [esp + 0xdc]
mov dword [esp + 0xcc], 0x4000
lea edx, [esp + 0xcc]
mov esi, dword [eax]
push edx
push eax
call dword [esi + 0x5c]
mov eax, dword [esp + 0xd4]
mov ebx, dword [eax]
push eax
call dword [ebx + 8]
mov eax, dword [0x7f3c70]
push eax
push str.Physical_memory_size__d_n
call fcn.00401000
mov eax, dword [0x7f3c74]
pop ecx
pop ecx
push eax
push str.Available_physical_memory__d_n
call fcn.00401000
mov eax, dword [0x7f3c80]
pop ecx
pop ecx
push eax
push str.Video_memory_size__d_n
call fcn.00401000
mov eax, dword [0x7f3c84]
pop ecx
pop ecx
push eax
push str.Available_video_memory__d_n
call fcn.00401000
cmp dword [0x7f3c84], 0xc00000
pop ecx
pop ecx
jae 0x601e90
mov ecx, 0x94b228
push 0
push str.WIN_TTL
call fcn.00584f50
mov ecx, 0x94b228
push eax
push str.WIN_VDM
call fcn.00584f50
push eax
push 0
call dword [sym.imp.user32.dll_MessageBoxW]
xor eax, eax
add esp, 0xd8
pop edi
pop esi
pop ebx
ret
mov ecx, 0x94b228
call fcn.005850d0
mov eax, 1
add esp, 0xd8
pop edi
pop esi
pop ebx
ret