Function at 0x401a20
Capabilities:
Check os version
Get common file path

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x54a6c7
mov eax, dword fs:[0]
push eax
sub esp, 0x220
mov eax, dword [0x599680]
xor eax, ebp
mov dword [ebp - 0x10], eax
push ebx
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov esi, dword [ebp + 8]
xor eax, eax
mov ebx, dword [ebp + 0xc]
mov dword [ebp - 0x22c], esi
mov dword [ebp - 0x224], 0
mov dword [esi + 0x10], 0
mov dword [esi + 0x14], 0
mov dword [esi + 0x10], 0
mov dword [esi + 0x14], 7
mov word [esi], ax
push 0x110
mov dword [ebp - 4], eax
push eax
lea eax, [ebp - 0x120]
mov dword [ebp - 0x224], 1
push eax
call fcn.0050c560
add esp, 0xc
mov dword [ebp - 0x124], 0x114
lea eax, [ebp - 0x124]
push eax
call dword [sym.imp.KERNEL32.dll_GetVersionExW]
cmp dword [ebp - 0x120], 6
jb 0x401b4d
push str.shell32.dll
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
mov edi, eax
test edi, edi
je 0x401b8f
push str.SHGetKnownFolderPath
push edi
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
test eax, eax
je 0x401b44
lea ecx, [ebp - 0x21c]
mov dword [ebp - 0x21c], 0
push ecx
push ebx
push 0x8000
push 0x55ace4
call eax
test eax, eax
jne 0x401b44
mov edx, dword [ebp - 0x21c]
mov ecx, edx
lea ebx, [ecx + 2]
nop dword [eax]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x401b20
sub ecx, ebx
sar ecx, 1
push ecx
push edx
mov ecx, esi
call fcn.004020a0
push dword [ebp - 0x21c]
call dword [sym.imp.ole32.dll_CoTaskMemFree]
push edi
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
jmp 0x401b8f
lea eax, [ebp - 0x218]
push eax
push 0
push ebx
push 0x801c
push 0
call dword [sym.imp.SHELL32.dll_SHGetFolderPathW]
test eax, eax
jne 0x401b8f
lea ecx, [ebp - 0x218]
lea edx, [ecx + 2]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x401b71
sub ecx, edx
lea eax, [ebp - 0x218]
sar ecx, 1
push ecx
push eax
mov ecx, esi
call fcn.004020a0
mov ecx, dword [esi + 0x10]
test ecx, ecx
je 0x401ca9
mov ebx, dword [esi + 0x14]
mov eax, esi
cmp ebx, 8
jb 0x401ba6
mov eax, dword [esi]
lea edx, [ecx + ecx]
cmp word [edx + eax - 2], 0x5c
mov dword [ebp - 0x220], edx
je 0x401ca9
cmp ecx, ebx
jae 0x401bda
lea eax, [ecx + 1]
mov dword [esi + 0x10], eax
mov eax, esi
cmp ebx, 8
jb 0x401bce
mov eax, dword [esi]
mov dword [edx + eax], 0x5c
jmp 0x401ca9
mov edx, bind
mov eax, edx
sub eax, ecx
cmp eax, 1
jb 0x401cc7
lea eax, [ecx + 1]
mov edi, eax
mov dword [ebp - 0x228], eax
or edi, 7
cmp edi, edx
jbe 0x401c02
mov edi, edx
jmp 0x401c1a
mov eax, ebx
shr eax, 1
sub edx, eax
cmp ebx, edx
jbe 0x401c13
mov edi, bind
jmp 0x401c1a
add eax, ebx
cmp edi, eax
cmovb edi, eax
lea eax, [edi + 1]
mov ecx, esi
push eax
call fcn.00402520
mov ecx, dword [ebp - 0x228]
mov dword [esi + 0x10], ecx
mov ecx, dword [ebp - 0x220]
mov dword [esi + 0x14], edi
mov dword [ebp - 0x21c], eax
push ecx
lea edi, [ecx + eax]
mov dword [ebp - 0x220], edi
cmp ebx, 8
jb 0x401c91
mov edi, dword [esi]
push edi
push eax
call fcn.0050bfe0
mov eax, dword [ebp - 0x220]
lea ebx, [ebx*2 + 2]
add esp, 0xc
mov dword [eax], 0x5c
cmp ebx, 0x1000
jb 0x401c85
mov ecx, dword [edi - 4]
add ebx, 0x23
sub edi, ecx
lea eax, [edi - 4]
cmp eax, 0x1f
ja 0x401ccc
mov edi, ecx
push ebx
push edi
call fcn.00509f9e
add esp, 8
jmp 0x401ca1
push esi
push eax
call fcn.0050bfe0
add esp, 0xc
mov dword [edi], 0x5c
mov eax, dword [ebp - 0x21c]
mov dword [esi], eax
mov eax, esi
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.00509f60
mov esp, ebp
pop ebp
ret
call fcn.00402500
call fcn.0051c85d
int3