Function at 0x421c8b
Capabilities:
Get common file path
Get file size
Query or enumerate registry value
Read file via mapping

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x798
push ebx
push esi
lea eax, [ebp - 0x14]
push edi
push eax
lea eax, [ebp - 0x798]
push eax
mov edi, SysReAllocStringLen
mov esi, 0x104
push str..htm
mov ebx, ecx
push edi
mov dword [ebp - 0x14], esi
call dword [sym.imp.ADVAPI32.dll_RegQueryValueA]
test eax, eax
jne 0x4220f3
lea eax, [ebp - 0x798]
push str._shellopencommand
push eax
call dword [sym.imp.KERNEL32.dll_lstrcatA]
lea eax, [ebp - 0x14]
mov dword [ebp - 0x14], esi
push eax
lea eax, [ebp - 0x180]
push eax
lea eax, [ebp - 0x798]
push eax
push edi
call dword [sym.imp.ADVAPI32.dll_RegQueryValueA]
test eax, eax
jne 0x4220f3
lea eax, [ebp - 0x180]
push eax
call dword [sym.imp.KERNEL32.dll_lstrlenA]
push eax
lea eax, [ebp - 0x180]
push eax
call dword [sym.imp.USER32.dll_CharLowerBuffA]
lea eax, [ebp - 0x180]
push str.netscape.exe
push eax
call fcn.004278d0
pop ecx
test eax, eax
pop ecx
je 0x421d91
cmp byte [ebp - 0x180], 0x22
lea ecx, [ebp - 0x180]
jne 0x421d42
lea ecx, [ebp - 0x17f]
sub eax, ecx
add eax, 0xd
push eax
lea eax, [ebp - 0x388]
push ecx
push eax
call dword [sym.imp.KERNEL32.dll_lstrcpynA]
lea ecx, [ebp - 0x60]
call fcn.004220fb
lea eax, [ebp - 0x388]
lea ecx, [ebp - 0x60]
push eax
call fcn.00423c74
mov eax, dword [ebp - 0x54]
mov dword [ebp - 0x60], 0x434f40
mov ecx, eax
mov word [ebx + 0x16], ax
shr ecx, 0x10
mov word [ebx + 0x14], cx
lea ecx, [ebp - 0x60]
call fcn.00422158
jmp 0x422049
lea eax, [ebp - 0x180]
push str.netscp6.exe
push eax
call fcn.004278d0
pop ecx
test eax, eax
pop ecx
je 0x422050
cmp byte [ebp - 0x180], 0x22
lea ecx, [ebp - 0x180]
jne 0x421dc1
lea ecx, [ebp - 0x17f]
sub eax, ecx
add eax, 0xc
push eax
lea eax, [ebp - 0x694]
push ecx
push eax
call dword [sym.imp.KERNEL32.dll_lstrcpynA]
or dword [ebp - 8], 0xffffffff
and dword [ebp - 0xc], 0
and dword [ebp - 4], 0
lea eax, [ebp - 0x388]
push esi
push eax
mov word [ebx + 0x14], 6
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
lea eax, [ebp - 0x388]
push str.mozver.dat
push eax
call dword [sym.imp.KERNEL32.dll_lstrcatA]
push 0
push 0x80
push 3
push 0
push 1
lea eax, [ebp - 0x388]
push edi
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
je 0x421e2a
mov dword [ebp - 8], eax
xor edi, edi
push edi
push edi
push edi
push 2
push edi
push dword [ebp - 8]
call dword [sym.imp.KERNEL32.dll_CreateFileMappingA]
cmp eax, edi
je 0x421e42
mov dword [ebp - 0xc], eax
push edi
push edi
push edi
push 4
push dword [ebp - 0xc]
call dword [sym.imp.KERNEL32.dll_MapViewOfFile]
cmp eax, edi
je 0x421e57
mov dword [ebp - 4], eax
push edi
push dword [ebp - 8]
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov edi, eax
push str.PackageName
add edi, dword [ebp - 4]
push edi
mov dword [ebp - 0x10], edi
push dword [ebp - 4]
call fcn.00421c40
add esp, 0xc
test eax, eax
je 0x422011
push str.Browser
push edi
push eax
call fcn.00421c40
add esp, 0xc
test eax, eax
je 0x422011
push str.Version
push edi
push eax
call fcn.00421c40
mov edx, eax
add esp, 0xc
test edx, edx
mov dword [ebp - 0x18], edx
je 0x422011
and byte [ebp - 0x7c], 0
push 0x18
pop ecx
xor eax, eax
lea edi, [ebp - 0x7b]
add edx, 8
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
stosb byte es:[edi], al
lea eax, [ebp - 0x7c]
push edx
push eax
call dword [sym.imp.KERNEL32.dll_lstrcpyA]
push str.Path
push dword [ebp - 0x10]
push dword [ebp - 0x18]
call fcn.00421c40
mov edx, eax
add esp, 0xc
test edx, edx
je 0x422011
and byte [ebp - 0x284], 0
push 0x40
pop ecx
xor eax, eax
lea edi, [ebp - 0x283]
add edx, 5
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
stosb byte es:[edi], al
lea eax, [ebp - 0x284]
push edx
push eax
call dword [sym.imp.KERNEL32.dll_lstrcpyA]
lea eax, [ebp - 0x284]
push str.netscp6.exe
push eax
call dword [sym.imp.KERNEL32.dll_lstrcatA]
and byte [ebp - 0x48c], 0
push 0x40
pop ecx
xor eax, eax
lea edi, [ebp - 0x48b]
and byte [ebp - 0x590], 0
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
stosb byte es:[edi], al
push 0x40
xor eax, eax
pop ecx
lea edi, [ebp - 0x58f]
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
stosb byte es:[edi], al
mov edi, dword [sym.imp.KERNEL32.dll_GetShortPathNameA]
lea eax, [ebp - 0x48c]
push esi
push eax
lea eax, [ebp - 0x694]
push eax
call edi
lea eax, [ebp - 0x590]
push esi
push eax
lea eax, [ebp - 0x284]
push eax
call edi
lea eax, [ebp - 0x590]
push eax
lea eax, [ebp - 0x48c]
push eax
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
jne 0x422011
mov cl, byte [ebp - 0x7c]
xor edi, edi
push 1
lea eax, [ebp - 0x7c]
mov dword [ebp - 0x10], edi
pop esi
mov dl, 0x2e
test cl, cl
je 0x421fb7
cmp cl, dl
je 0x421fb7
mov cl, byte [eax + 1]
inc eax
jmp 0x421fa9
mov cl, byte [eax + 1]
inc eax
test cl, cl
je 0x421fc3
cmp cl, dl
jne 0x421fb7
mov cl, byte [eax - 1]
dec eax
cmp cl, dl
je 0x421fdd
movsx ecx, cl
sub ecx, 0x30
imul ecx, esi
lea esi, [esi + esi*4]
add edi, ecx
shl esi, 1
jmp 0x421fc3
push 1
dec eax
pop esi
mov cl, byte [eax]
cmp cl, byte [ebp - 0x7c]
je 0x421ffc
movsx ecx, cl
sub ecx, 0x30
imul ecx, esi
add dword [ebp - 0x10], ecx
lea esi, [esi + esi*4]
shl esi, 1
dec eax
jmp 0x421fe1
movsx ax, byte [eax]
sub eax, 0x30
mov word [ebx + 0x16], di
imul eax, esi
add eax, dword [ebp - 0x10]
mov word [ebx + 0x14], ax
cmp dword [ebp - 4], 0
je 0x422025
mov eax, dword [sym.imp.KERNEL32.dll_UnmapViewOfFile]
test eax, eax
je 0x422025
push dword [ebp - 4]
call eax
cmp dword [ebp - 0xc], 0
mov esi, dword [sym.imp.KERNEL32.dll_CloseHandle]
je 0x42203a
test esi, esi
je 0x42203a
push dword [ebp - 0xc]
call esi
cmp dword [ebp - 8], 0xffffffff
je 0x422049
test esi, esi
je 0x422049
push dword [ebp - 8]
call esi
xor eax, eax
jmp 0x4220f6
lea eax, [ebp - 0x180]
push str.iexplore.exe
push eax
call fcn.004278d0
pop ecx
test eax, eax
pop ecx
je 0x4220f3
cmp byte [ebp - 0x180], 0x22
lea ecx, [ebp - 0x180]
jne 0x422080
lea ecx, [ebp - 0x17f]
sub eax, ecx
add eax, 0xd
push eax
lea eax, [ebp - 0x694]
push ecx
push eax
call dword [sym.imp.KERNEL32.dll_lstrcpynA]
lea ecx, [ebp - 0x60]
call fcn.004220fb
lea eax, [ebp - 0x694]
lea ecx, [ebp - 0x60]
push eax
call fcn.00423c74
mov eax, dword [ebp - 0x50]
mov edx, dword [ebp - 0x54]
movzx esi, ax
shr eax, 0x10
push esi
push eax
movzx eax, dx
mov ecx, edx
push eax
shr ecx, 0x10
movzx eax, cx
mov word [ebx + 0x14], cx
mov word [ebx + 0x16], dx
push eax
add ebx, 0x18
push str._d._d._d._d
push ebx
call dword [sym.imp.USER32.dll_wsprintfA]
add esp, 0x18
lea ecx, [ebp - 0x60]
mov dword [ebp - 0x60], 0x434f40
call fcn.00422158
push 1
jmp 0x4220f5
push 2
pop eax
pop edi
pop esi
pop ebx
leave
ret