Function at 0x423340
Capabilities:
Check if file exists
Query or enumerate registry value

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x5130fc
mov eax, dword fs:[0]
push eax
sub esp, 0x424
mov eax, dword [0x56e6c4]
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 ebx, ecx
call fcn.0040ab00
mov ecx, eax
test ecx, ecx
je 0x4235ef
mov eax, dword [ecx]
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x424], eax
push str.__PID
lea ecx, [ebp - 0x424]
mov dword [ebp - 4], 0
call fcn.0040a7c0
test al, al
jne 0x4233d0
mov ecx, str.__PID
lea edx, [ecx + 2]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x4233b0
sub ecx, edx
sar ecx, 1
push ecx
push str.__PID
lea ecx, [ebp - 0x424]
call fcn.00409f50
lea esi, [ebx + 0x24]
mov dword [ebp - 4], 1
push esi
lea eax, [ebp - 0x424]
mov ecx, ebx
push eax
call fcn.00420ed0
mov edx, dword [ebp - 0x424]
or edi, 0xffffffff
mov dword [ebp - 4], 0xffffffff
add edx, 0xfffffff0
mov eax, edi
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x423410
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
mov eax, dword [esi]
cmp dword [eax - 0xc], 0
jne 0x4234b7
call fcn.0040ab00
mov ecx, eax
test ecx, ecx
je 0x4235f9
mov eax, dword [ecx]
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x424], eax
push 0xd0
lea ecx, [ebp - 0x424]
mov dword [ebp - 4], 2
call fcn.0040a7c0
test al, al
jne 0x423480
mov ecx, 0xd0
lea edx, [ecx + 2]
nop dword [eax]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x423460
sub ecx, edx
sar ecx, 1
push ecx
push 0xd0
lea ecx, [ebp - 0x424]
call fcn.00409f50
lea eax, [ebp - 0x424]
mov dword [ebp - 4], 3
push eax
mov ecx, esi
call fcn.00412ed0
mov edx, dword [ebp - 0x424]
mov dword [ebp - 4], 0xffffffff
add edx, 0xfffffff0
lock xadd dword [edx + 0xc], edi
dec edi
test edi, edi
jg 0x4234b7
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
push 0x208
lea eax, [ebp - 0x218]
push 0
push eax
call fcn.0049d980
mov edi, dword [sym.imp.SHLWAPI.dll_SHGetValueW]
lea eax, [ebp - 0x428]
add esp, 0xc
mov dword [ebp - 0x42c], 1
mov dword [ebp - 0x428], 0x104
push eax
lea eax, [ebp - 0x218]
push eax
lea eax, [ebp - 0x42c]
push eax
push 0x526fd4
push str.SOFTWAREMicrosoftWindowsCurrentVersionApp_Pathshalowp.exe
push reloc.OLEAUT32.dll_SysReAllocString
call edi
cmp word [ebp - 0x218], 0
je 0x423529
push str.halowp.exe
lea eax, [ebp - 0x218]
push eax
call dword [sym.imp.SHLWAPI.dll_PathAppendW]
lea eax, [ebp - 0x218]
push eax
call dword [sym.imp.SHLWAPI.dll_PathFileExistsW]
test eax, eax
je 0x4235ca
push 0x208
lea eax, [ebp - 0x420]
push 0
push eax
call fcn.0049d980
add esp, 0xc
mov dword [ebp - 0x430], 1
lea eax, [ebp - 0x424]
mov dword [ebp - 0x424], 0x104
push eax
lea eax, [ebp - 0x420]
push eax
lea eax, [ebp - 0x430]
push eax
push 0x526d08
push str.SoftwareHaloWallPaper
push SysReAllocString
call edi
lea ecx, [ebp - 0x420]
lea edx, [ecx + 2]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x423597
sub ecx, edx
sar ecx, 1
je 0x4235d3
push ecx
lea eax, [ebp - 0x420]
push eax
lea ecx, [ebx + 0x14]
call fcn.00409f50
lea ecx, [ebx + 0x14]
call fcn.0041f830
lea ecx, [ebx + 0x14]
call fcn.0041f730
jmp 0x4235d3
push esi
lea ecx, [ebx + 0x14]
call fcn.00412ed0
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.00483518
mov esp, ebp
pop ebp
ret
push 0x80004005
call fcn.00408720
push 0x80004005
call fcn.00408720
int3