Function at 0x435b90
Capabilities:
Check if file exists
Check os version
Get file attributes
Persist via run registry key
Query or enumerate registry value

Disassembly:
mov eax, dword fs:[0]
push 0xffffffffffffffff
push 0x5afdc3
push eax
mov eax, dword [0x67a040]
mov dword fs:[0], esp
sub esp, 0x2e8
push ebx
push ebp
push esi
xor esi, esi
cmp eax, esi
push edi
jne 0x435bc7
call fcn.00433b30
test al, al
je 0x436270
mov ecx, 0x82
xor eax, eax
lea edi, [esp + 0xf0]
mov edx, dword [0x67a040]
rep stosd dword es:[edi], eax
mov ebx, dword [sym.imp.ADVAPI32.dll_RegQueryValueExA]
lea eax, [esp + 0x18]
lea ecx, [esp + 0xf0]
push eax
push ecx
push esi
push esi
push str.LocalPathW
push edx
mov dword [esp + 0x30], 0x208
call ebx
test eax, eax
jne 0x435c21
mov ecx, dword [esp + 0x308]
lea eax, [esp + 0xf0]
push eax
call fcn.00401fb0
mov al, 1
jmp 0x436272
mov ecx, dword [0x6754cc]
mov dword [esp + 0x28], ecx
mov eax, dword [0x67a040]
lea edx, [esp + 0x18]
push edx
push esi
push esi
push esi
push 0x652cf8
push eax
mov dword [esp + 0x318], esi
call ebx
test eax, eax
jne 0x435c9d
mov ecx, dword [esp + 0x18]
push ecx
lea ecx, [esp + 0x2c]
call fcn.0059b10a
lea edx, [esp + 0x18]
mov edi, eax
mov eax, dword [0x67a040]
push edx
push edi
push esi
push esi
push 0x652cf8
push eax
call ebx
test eax, eax
jne 0x435c9d
mov ecx, dword [esp + 0x308]
push esi
push edi
call fcn.004028d0
lea ecx, [esp + 0x28]
mov dword [esp + 0x300], 0xffffffff
call fcn.0059ad3d
mov al, 1
jmp 0x436272
lea ecx, [esp + 0x5c]
mov dword [esp + 0x5c], 0x94
push ecx
call dword [sym.imp.KERNEL32.dll_GetVersionExA]
mov ebx, dword [esp + 0x308]
test eax, eax
je 0x435f09
cmp dword [esp + 0x6c], 2
jne 0x435f09
cmp dword [esp + 0x60], 6
jb 0x435f09
push str.shell32
call dword [sym.imp.KERNEL32.dll_LoadLibraryA]
mov ebp, eax
cmp ebp, esi
mov dword [esp + 0x3c], ebp
je 0x435f09
push str.SHGetKnownFolderPath
push ebp
mov byte [esp + 0x1b], 0
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
mov edi, eax
cmp edi, esi
je 0x435edf
push esi
mov dword [esp + 0x18], esi
mov dword [esp + 0x44], 0x374de290
mov word [esp + 0x48], 0x123f
mov word [esp + 0x4a], 0x4565
mov byte [esp + 0x4c], 0x91
mov byte [esp + 0x4d], 0x64
mov byte [esp + 0x4e], 0x39
mov byte [esp + 0x4f], 0xc4
mov byte [esp + 0x50], 0x92
mov byte [esp + 0x51], 0x5e
mov byte [esp + 0x52], 0x46
mov byte [esp + 0x53], 0x7b
call dword [sym.imp.ole32.dll_CoInitialize]
lea edx, [esp + 0x14]
lea eax, [esp + 0x40]
push edx
push esi
push esi
push eax
call edi
cmp eax, esi
jne 0x435ed9
mov eax, dword [esp + 0x14]
cmp eax, esi
je 0x435ed9
push eax
call fcn.0057e90a
mov ebp, dword [esp + 0x18]
add esp, 4
mov edi, 0x679a1c
cmp word [ebp + eax*2 - 2], 0x5c
je 0x435d93
mov edi, 0x64f030
mov ecx, 0x64f028
test ecx, ecx
je 0x435ec9
cmp ebp, esi
je 0x435ec9
cmp edi, esi
je 0x435ec9
push esi
push ecx
lea ecx, [esp + 0x24]
mov dword [esp + 0x24], esi
mov dword [esp + 0x2c], esi
mov word [esp + 0x28], si
call fcn.004028d0
push ebp
lea ecx, [esp + 0x30]
mov byte [esp + 0x304], 1
mov dword [esp + 0x30], esi
mov dword [esp + 0x38], esi
mov word [esp + 0x34], si
call fcn.00401fb0
push edi
lea ecx, [esp + 0x54]
mov byte [esp + 0x304], 2
call fcn.00403ba0
mov ecx, ebx
mov byte [esp + 0x300], 3
call fcn.00401070
mov esi, dword [esp + 0x24]
lea ecx, [esp + 0x50]
call fcn.00401fa0
push eax
call fcn.0057e90a
add esp, 4
lea ecx, [esp + 0x2c]
mov edi, eax
call fcn.00401fa0
push eax
call fcn.0057e90a
add esi, edi
lea esi, [eax + esi + 3]
lea ebp, [esi + esi]
push ebp
call fcn.005970d9
mov edi, eax
add esp, 8
test edi, edi
mov dword [ebx], edi
je 0x435e90
mov ecx, ebp
xor eax, eax
mov edx, ecx
shr ecx, 2
rep stosd dword es:[edi], eax
mov ecx, edx
and ecx, 3
rep stosb byte es:[edi], al
lea ecx, [esp + 0x50]
call fcn.00401fa0
push eax
lea ecx, [esp + 0x30]
call fcn.00401fa0
push eax
lea ecx, [esp + 0x24]
call fcn.00401fa0
push eax
mov eax, dword [ebx]
push esi
push eax
call fcn.0057e89a
mov ecx, dword [ebx]
push ecx
call fcn.0057e90a
add esp, 0x18
mov dword [ebx + 8], eax
lea ecx, [esp + 0x50]
mov byte [esp + 0x300], 2
call fcn.00401070
lea ecx, [esp + 0x2c]
mov byte [esp + 0x300], 1
call fcn.00401070
lea ecx, [esp + 0x1c]
mov byte [esp + 0x300], 0
call fcn.00401070
mov ebp, dword [esp + 0x14]
xor esi, esi
push ebp
call dword [sym.imp.ole32.dll_CoTaskMemFree]
mov ebp, dword [esp + 0x3c]
mov byte [esp + 0x13], 1
call dword [sym.imp.ole32.dll_CoUninitialize]
push ebp
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
mov al, byte [esp + 0x13]
test al, al
je 0x435f09
lea ecx, [esp + 0x28]
mov dword [esp + 0x300], 0xffffffff
call fcn.0059ad3d
mov al, 1
jmp 0x436272
lea edx, [esp + 0x38]
push edx
push 0xf003f
push esi
push str.SoftwareMicrosoftWindowsCurrentVersionExplorerShell_Folders_
push reloc.WSOCK32.dll_accept
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExA]
test eax, eax
jne 0x43625c
mov ecx, dword [esp + 0x38]
mov edi, dword [sym.imp.ADVAPI32.dll_RegQueryValueExW]
lea eax, [esp + 0x18]
push eax
push esi
push esi
push esi
push str.Personal
push ecx
call edi
test eax, eax
jne 0x436251
mov edx, dword [esp + 0x18]
lea eax, [edx*4 + 4]
push eax
call fcn.005970d9
mov ebp, eax
add esp, 4
cmp ebp, esi
je 0x436251
mov edx, dword [esp + 0x38]
lea ecx, [esp + 0x18]
push ecx
push ebp
push esi
push esi
push str.Personal
push edx
call edi
test eax, eax
jne 0x436248
mov dword [esp + 0x2c], esi
mov dword [esp + 0x34], esi
mov word [esp + 0x30], si
push ebp
mov byte [esp + 0x304], 4
call fcn.0057e90a
add esp, 4
cmp word [ebp + eax*2 - 2], 0x5c
mov edi, 0x679a1c
je 0x435fb8
mov edi, 0x64f030
mov eax, str._s_sDownloads_
test eax, eax
je 0x4360e7
cmp edi, esi
je 0x4360e7
push esi
push eax
lea ecx, [esp + 0x24]
mov dword [esp + 0x24], esi
mov dword [esp + 0x2c], esi
mov word [esp + 0x28], si
call fcn.004028d0
push ebp
lea ecx, [esp + 0x54]
mov byte [esp + 0x304], 5
call fcn.00403ba0
push edi
lea ecx, [esp + 0x44]
mov byte [esp + 0x304], 6
call fcn.00403ba0
lea ecx, [esp + 0x2c]
mov byte [esp + 0x300], 7
call fcn.00401070
mov edi, dword [esp + 0x50]
cmp edi, esi
jne 0x436026
lea edi, [esp + 0x54]
mov esi, dword [esp + 0x24]
lea ecx, [esp + 0x40]
call fcn.00401fa0
push eax
call fcn.0057e90a
mov edx, eax
push edi
mov dword [esp + 0x44], edx
call fcn.0057e90a
mov ecx, dword [esp + 0x44]
add esi, ecx
lea esi, [eax + esi + 3]
lea eax, [esi + esi]
push eax
call fcn.005970d9
mov edi, eax
add esp, 0xc
test edi, edi
mov dword [esp + 0x2c], edi
je 0x4360b2
lea ecx, [esi + esi]
xor eax, eax
mov edx, ecx
shr ecx, 2
rep stosd dword es:[edi], eax
mov ecx, edx
and ecx, 3
rep stosb byte es:[edi], al
lea ecx, [esp + 0x40]
call fcn.00401fa0
push eax
lea ecx, [esp + 0x54]
call fcn.00401fa0
push eax
lea ecx, [esp + 0x24]
call fcn.00401fa0
push eax
mov eax, dword [esp + 0x38]
push esi
push eax
call fcn.0057e89a
mov ecx, dword [esp + 0x40]
push ecx
call fcn.0057e90a
add esp, 0x18
mov dword [esp + 0x34], eax
lea ecx, [esp + 0x40]
mov byte [esp + 0x300], 6
call fcn.00401070
lea ecx, [esp + 0x50]
mov byte [esp + 0x300], 5
call fcn.00401070
lea ecx, [esp + 0x1c]
mov byte [esp + 0x300], 4
call fcn.00401070
xor esi, esi
mov edx, dword [esp + 0x2c]
mov ecx, ebx
push edx
call fcn.00401fb0
mov eax, dword [ebx]
cmp eax, esi
jne 0x4360fc
lea eax, [ebx + 4]
push esi
push eax
call fcn.0046e270
mov eax, dword [0x6526b8]
add esp, 8
xor edi, edi
cmp eax, esi
mov eax, dword [ebx]
je 0x43612c
cmp eax, esi
jne 0x43611a
lea eax, [ebx + 4]
push eax
call dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
cmp eax, 0xffffffff
jne 0x436214
jmp 0x436163
cmp eax, esi
jne 0x436133
lea eax, [ebx + 4]
push eax
lea ecx, [esp + 0x18]
call fcn.0059adfd
mov eax, dword [esp + 0x14]
push eax
call dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
cmp eax, 0xffffffff
jne 0x436152
mov edi, 1
lea ecx, [esp + 0x14]
call fcn.0059ad3d
cmp edi, esi
je 0x436214
cmp dword [ebx], esi
je 0x4361d2
push ebp
call fcn.0057e90a
add esp, 4
test eax, eax
je 0x4361d2
mov eax, dword [ebx]
cmp eax, ebp
ja 0x4361d2
push eax
call fcn.0057e90a
mov ecx, dword [ebx]
add esp, 4
lea edx, [ecx + eax*2]
cmp edx, ebp
jb 0x4361d2
push ebp
lea ecx, [esp + 0x20]
mov dword [esp + 0x20], esi
mov dword [esp + 0x28], esi
mov word [esp + 0x24], si
call fcn.00401fb0
mov eax, dword [esp + 0x1c]
mov byte [esp + 0x300], 8
cmp eax, esi
jne 0x4361b7
lea eax, [esp + 0x20]
push eax
mov ecx, ebx
call fcn.00401fb0
lea ecx, [esp + 0x1c]
mov byte [esp + 0x300], 4
call fcn.00401070
jmp 0x436214
mov ecx, ebx
call fcn.00401070
push ebp
call fcn.0057e90a
add esp, 4
test eax, eax
je 0x436214
push ebp
call fcn.0057e90a
lea eax, [eax + eax + 2]
push eax
call fcn.005970d9
add esp, 8
cmp eax, esi
mov dword [ebx], eax
je 0x436214
push ebp
call fcn.0057e90a
mov ecx, dword [ebx]
push ebp
push ecx
mov dword [ebx + 8], eax
call fcn.0057eaaa
add esp, 0xc
mov edx, dword [esp + 0x38]
push edx
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
lea ecx, [esp + 0x2c]
mov byte [esp + 0x300], 0
call fcn.00401070
lea ecx, [esp + 0x28]
mov dword [esp + 0x300], 0xffffffff
call fcn.0059ad3d
mov al, 1
jmp 0x436272
push ebp
call fcn.00597102
add esp, 4
mov eax, dword [esp + 0x38]
push eax
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
lea ecx, [esp + 0x28]
mov dword [esp + 0x300], 0xffffffff
call fcn.0059ad3d
xor al, al
mov ecx, dword [esp + 0x2f8]
pop edi
pop esi
pop ebp
pop ebx
mov dword fs:[0], ecx
add esp, 0x2f4
ret