Function at 0x420b30
Capabilities:
Check if file exists
Query or enumerate registry value

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x50def8
mov eax, dword fs:[0]
push eax
sub esp, 0x42c
mov eax, dword [0x55b524]
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, dword [ebp + 8]
call fcn.004053a0
mov ecx, eax
test ecx, ecx
je 0x420f6e
mov eax, dword [ecx]
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x428], eax
push str.__fromnewinstall
lea ecx, [ebp - 0x428]
mov dword [ebp - 4], 0
call fcn.00404770
test al, al
jne 0x420bab
push 0x11
push str.__fromnewinstall
lea ecx, [ebp - 0x428]
call fcn.00405b60
push 0x208
lea eax, [ebp - 0x218]
mov dword [ebp - 4], 1
push 0
push eax
call fcn.00491810
add esp, 0xc
mov dword [ebp - 0x438], 1
lea eax, [ebp - 0x434]
mov dword [ebp - 0x434], 0x104
push eax
lea eax, [ebp - 0x218]
push eax
lea eax, [ebp - 0x438]
push eax
push str.Setup_Path
push str.SOFTWAREBiscuitZip
push reloc.OLEAUT32.dll_SysReAllocString
call dword [sym.imp.SHLWAPI.dll_SHGetValueW]
or edi, 0xffffffff
test eax, eax
je 0x420c15
lea ebx, [edi + 3]
jmp 0x420edb
lea edx, [ebp - 0x218]
lea esi, [edx + 2]
nop
mov ax, word [edx]
add edx, 2
test ax, ax
jne 0x420c20
sub edx, esi
lea eax, [ebp - 0x218]
sar edx, 1
mov ecx, ebx
push edx
push eax
call fcn.00405b60
push str.BiscuitZip.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
jne 0x420c69
lea ebx, [eax + 2]
jmp 0x420edb
push 0x208
lea eax, [ebp - 0x420]
push 0
push eax
call fcn.00491810
add esp, 0xc
lea eax, [ebp - 0x420]
push 0x104
push eax
push dword [0x562ed4]
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameW]
call fcn.004053a0
mov ecx, eax
test ecx, ecx
je 0x420f78
mov eax, dword [ecx]
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x430], eax
mov byte [ebp - 4], 2
call fcn.004053a0
mov ecx, eax
test ecx, ecx
je 0x420f82
mov eax, dword [ecx]
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x424], eax
lea eax, [ebp - 0x218]
mov byte [ebp - 4], 3
push eax
lea ecx, [ebp - 0x424]
call fcn.00404770
test al, al
jne 0x420d22
lea ecx, [ebp - 0x218]
lea edx, [ecx + 2]
nop dword [eax + eax]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x420d00
sub ecx, edx
lea eax, [ebp - 0x218]
sar ecx, 1
push ecx
push eax
lea ecx, [ebp - 0x424]
call fcn.00405b60
lea eax, [ebp - 0x430]
mov byte [ebp - 4], 4
push eax
lea eax, [ebp - 0x424]
push eax
call fcn.00415470
mov edx, dword [ebp - 0x424]
add esp, 8
mov byte [ebp - 4], 2
add edx, 0xfffffff0
mov eax, edi
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x420d5d
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
call fcn.004053a0
mov ecx, eax
test ecx, ecx
je 0x420f8c
mov eax, dword [ecx]
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x42c], eax
mov byte [ebp - 4], 5
call fcn.004053a0
mov ecx, eax
test ecx, ecx
je 0x420f96
mov eax, dword [ecx]
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x424], eax
lea eax, [ebp - 0x420]
mov byte [ebp - 4], 6
push eax
lea ecx, [ebp - 0x424]
call fcn.00404770
test al, al
jne 0x420de2
lea ecx, [ebp - 0x420]
lea edx, [ecx + 2]
nop
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x420dc0
sub ecx, edx
lea eax, [ebp - 0x420]
sar ecx, 1
push ecx
push eax
lea ecx, [ebp - 0x424]
call fcn.00405b60
lea eax, [ebp - 0x42c]
mov byte [ebp - 4], 7
push eax
lea eax, [ebp - 0x424]
push eax
call fcn.00415470
mov edx, dword [ebp - 0x424]
add esp, 8
mov byte [ebp - 4], 5
add edx, 0xfffffff0
mov eax, edi
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x420e1d
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
mov esi, dword [ebp - 0x42c]
cmp dword [esi - 0xc], 0
jne 0x420e53
mov ebx, 2
add esi, 0xfffffff0
mov byte [ebp - 4], bl
mov eax, edi
lock xadd dword [esi + 0xc], eax
dec eax
test eax, eax
jg 0x420e48
mov ecx, dword [esi]
push esi
mov eax, dword [ecx]
call dword [eax + 4]
mov edx, dword [ebp - 0x430]
add edx, 0xfffffff0
jmp 0x420ec3
mov edi, dword [ebp - 0x430]
push edi
push esi
call fcn.0040db20
add esp, 8
lea ecx, [ebp - 0x428]
test eax, eax
jns 0x420e7e
push 0
push 0x51d334
call fcn.00405b60
or ebx, 0xffffffff
jmp 0x420ea1
jne 0x420e90
push 0
push 0x51d334
call fcn.00405b60
xor ebx, ebx
jmp 0x420ea1
push 0x10
push str.__fromupinstall
mov ebx, 1
call fcn.00405b60
mov byte [ebp - 4], 2
add esi, 0xfffffff0
or eax, 0xffffffff
lock xadd dword [esi + 0xc], eax
dec eax
test eax, eax
jg 0x420ebd
mov ecx, dword [esi]
push esi
mov eax, dword [ecx]
call dword [eax + 4]
lea edx, [edi - 0x10]
or edi, 0xffffffff
mov eax, edi
mov byte [ebp - 4], 1
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x420edb
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
mov esi, dword [ebp - 0x428]
cmp dword [esi - 4], 1
jle 0x420efb
push dword [esi - 0xc]
lea ecx, [ebp - 0x428]
call fcn.004052f0
mov esi, dword [ebp - 0x428]
call fcn.0041b720
add eax, 0x40
mov dword [ebp - 0x42c], eax
test esi, esi
jne 0x420f11
xor ecx, ecx
jmp 0x420f2b
mov ecx, esi
lea edx, [ecx + 2]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x420f16
mov eax, dword [ebp - 0x42c]
sub ecx, edx
sar ecx, 1
push ecx
push esi
mov ecx, eax
call fcn.00405b60
mov dword [ebp - 4], 0xffffffff
add esi, 0xfffffff0
lock xadd dword [esi + 0xc], edi
dec edi
test edi, edi
jg 0x420f50
mov ecx, dword [esi]
push esi
mov edx, dword [ecx]
call dword [edx + 4]
mov eax, ebx
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.00462c38
mov esp, ebp
pop ebp
ret
push 0x80004005
call fcn.00404750
push 0x80004005
call fcn.00404750
push 0x80004005
call fcn.00404750
push 0x80004005
call fcn.00404750
push 0x80004005
call fcn.00404750
int3