Function at 0x41a7a0
Capabilities:
Check os version
Create directory
Delete file
Get common file path
Get startup folder
Persist via run registry key
Query or enumerate registry value
Set registry value

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x4961bb
mov eax, dword fs:[0]
push eax
sub esp, 0x47c
mov eax, dword [0x6a73c0]
xor eax, ebp
mov dword [ebp - 0x10], eax
push ebx
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
lea eax, [ebp - 0x478]
push eax
push 0x101
push 0
push str.SOFTWAREMicrosoftCryptography
push reloc.WS2_32.dll_bind
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExA]
test eax, eax
je 0x41a806
push 0
push 0
push str.GetGUID_err1
call fcn.00412140
add esp, 0xc
xor al, al
jmp 0x41ac91
mov dword [ebp - 0x47c], 0x28
mov ecx, dword [ebp - 0x47c]
push ecx
push 0
lea edx, [ebp - 0x38]
push edx
call fcn.0046fbb0
add esp, 0xc
lea eax, [ebp - 0x47c]
push eax
lea ecx, [ebp - 0x38]
push ecx
push 0
push 0
push str.MachineGuid
mov edx, dword [ebp - 0x478]
push edx
call dword [sym.imp.ADVAPI32.dll_RegQueryValueExA]
mov eax, dword [ebp - 0x478]
push eax
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
lea ecx, [ebp - 0x38]
mov dword [ebp - 0x474], ecx
mov dword [ebp - 0x470], 0
jmp 0x41a877
mov edx, dword [ebp - 0x470]
add edx, 1
mov dword [ebp - 0x470], edx
cmp dword [ebp - 0x470], 0x20
jge 0x41a98b
mov eax, dword [ebp - 0x474]
movsx ecx, byte [eax]
cmp ecx, 0x2d
jne 0x41a8a1
mov edx, dword [ebp - 0x474]
add edx, 1
mov dword [ebp - 0x474], edx
mov eax, dword [ebp - 0x474]
mov cl, byte [eax]
mov byte [ebp - 0x469], cl
mov edx, dword [ebp - 0x474]
add edx, 1
mov dword [ebp - 0x474], edx
mov byte [ebp - 0x46a], 0
movsx eax, byte [ebp - 0x469]
cmp eax, 0x30
jl 0x41a8ef
movsx ecx, byte [ebp - 0x469]
cmp ecx, 0x39
jg 0x41a8ef
movsx edx, byte [ebp - 0x469]
sub edx, 0x30
mov byte [ebp - 0x46a], dl
jmp 0x41a932
movsx eax, byte [ebp - 0x469]
cmp eax, 0x61
jl 0x41a907
movsx ecx, byte [ebp - 0x469]
cmp ecx, 0x66
jle 0x41a91f
movsx edx, byte [ebp - 0x469]
cmp edx, 0x41
jl 0x41a932
movsx eax, byte [ebp - 0x469]
cmp eax, 0x46
jg 0x41a932
movsx ecx, byte [ebp - 0x469]
and ecx, 0xf
add ecx, 9
mov byte [ebp - 0x46a], cl
mov edx, dword [ebp - 0x470]
and edx, 1
je 0x41a96b
movzx ecx, byte [ebp - 0x46a]
mov eax, dword [ebp - 0x470]
cdq
sub eax, edx
sar eax, 1
movzx ebx, byte [eax + 0x6c9eec]
or ebx, ecx
mov eax, dword [ebp - 0x470]
cdq
sub eax, edx
sar eax, 1
mov byte [eax + 0x6c9eec], bl
jmp 0x41a986
movzx ecx, byte [ebp - 0x46a]
shl ecx, 4
mov eax, dword [ebp - 0x470]
cdq
sub eax, edx
sar eax, 1
mov byte [eax + 0x6c9eec], cl
jmp 0x41a868
call fcn.004021c0
movzx edx, al
test edx, edx
jne 0x41a9af
push 0
push 0
push str.Dll_is_not_installed
call fcn.00412140
add esp, 0xc
xor al, al
jmp 0x41ac91
call fcn.0041bc50
movzx eax, al
test eax, eax
jne 0x41a9d3
push 0
push 0
push str.Config_installation_failed
call fcn.00412140
add esp, 0xc
xor al, al
jmp 0x41ac91
lea ecx, [ebp - 0x478]
push ecx
push 3
push 0
push str.SoftwareMicrosoftWindowsCurrentVersionRun
push reloc.WS2_32.dll_bind
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExW]
test eax, eax
jne 0x41aa45
push 0x6c95e8
call fcn.00471e65
add esp, 4
lea edx, [eax + eax + 2]
mov dword [ebp - 0x480], edx
mov eax, dword [ebp - 0x478]
mov dword [ebp - 0x484], eax
mov ecx, dword [ebp - 0x480]
push ecx
push 0x6c95e8
push 1
push 0
push 0x68b1f4
mov edx, dword [ebp - 0x484]
push edx
call dword [sym.imp.ADVAPI32.dll_RegSetValueExW]
mov eax, dword [ebp - 0x478]
push eax
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
nop
push 0
push 0x18
lea ecx, [ebp - 0x238]
push ecx
push 0
call dword [sym.imp.SHELL32.dll_SHGetSpecialFolderPathW]
push 0x68b204
push 0x100
lea edx, [ebp - 0x238]
push edx
call fcn.00473e07
add esp, 0xc
lea eax, [ebp - 0x238]
push eax
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push 0
push 0x17
lea ecx, [ebp - 0x238]
push ecx
push 0
call dword [sym.imp.SHELL32.dll_SHGetSpecialFolderPathW]
push 0x68b220
push 0x100
lea edx, [ebp - 0x238]
push edx
call fcn.00473e07
add esp, 0xc
push 0
lea eax, [ebp - 0x238]
push eax
call dword [sym.imp.KERNEL32.dll_CreateDirectoryW]
push str.VKSaver.lnk
lea ecx, [ebp - 0x238]
push ecx
push 0x68b24c
lea edx, [ebp - 0x438]
push edx
call dword [sym.imp.USER32.dll_wsprintfW]
add esp, 0x10
lea eax, [ebp - 0x438]
push eax
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push str.Launch_VKSaver.lnk
lea ecx, [ebp - 0x238]
push ecx
push 0x68b280
lea edx, [ebp - 0x438]
push edx
call dword [sym.imp.USER32.dll_wsprintfW]
add esp, 0x10
push 0xffffffffffffff95
push 0x68b28c
lea eax, [ebp - 0x438]
push eax
push 0x68b290
push 0x6c95e8
call fcn.00419dc0
add esp, 0x14
push str.Uninstall.lnk
lea ecx, [ebp - 0x238]
push ecx
push 0x68b2d0
lea edx, [ebp - 0x438]
push edx
call dword [sym.imp.USER32.dll_wsprintfW]
add esp, 0x10
push 0xffffff78
push str._uninstall
lea eax, [ebp - 0x438]
push eax
push 0x68b2f4
push 0x6c95e8
call fcn.00419dc0
add esp, 0x14
call dword [sym.imp.KERNEL32.dll_GetVersion]
and eax, 0xff
mov dword [ebp - 0x488], eax
cmp dword [ebp - 0x488], 6
jb 0x41abb4
movzx ecx, byte [ebp + 8]
push ecx
call fcn.0041ad20
add esp, 4
movzx edx, al
test edx, edx
jne 0x41abb2
push 0
push 0
push str.Install_for_Vista_failed
call fcn.00412140
add esp, 0xc
xor al, al
jmp 0x41ac91
jmp 0x41abe0
movzx eax, byte [ebp + 8]
push eax
call fcn.0041b490
add esp, 4
movzx ecx, al
test ecx, ecx
jne 0x41abe0
push 0
push 0
push str.Install_for_XP_failed
call fcn.00412140
add esp, 0xc
xor al, al
jmp 0x41ac91
push 0x6c95e8
lea ecx, [ebp - 0x468]
call fcn.00405690
mov dword [ebp - 4], 0
push 0x6a7014
lea ecx, [ebp - 0x450]
call fcn.00405690
mov byte [ebp - 4], 1
lea edx, [ebp - 0x468]
push edx
lea eax, [ebp - 0x450]
push eax
call fcn.00412e50
add esp, 8
mov byte [ebp - 4], 0
lea ecx, [ebp - 0x450]
call fcn.004070e0
mov dword [ebp - 4], 0xffffffff
lea ecx, [ebp - 0x468]
call fcn.004070e0
nop
movzx ecx, byte [ebp + 0xc]
test ecx, ecx
je 0x41ac8f
movzx edx, byte [0x6c9ee8]
test edx, edx
je 0x41ac75
push str._popup
push 0x6c95e8
call fcn.00419ed0
add esp, 8
movzx eax, al
test eax, eax
jne 0x41ac73
xor al, al
jmp 0x41ac91
jmp 0x41ac8f
push 0
push 0x6c95e8
call fcn.00419ed0
add esp, 8
movzx ecx, al
test ecx, ecx
jne 0x41ac8f
xor al, al
jmp 0x41ac91
mov al, 1
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop ebx
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.0046c80e
mov esp, ebp
pop ebp
ret