Function at 0x4039fb
Capabilities:
Check for time delay via gettickcount
Get file size

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x148
push ebx
push esi
xor esi, esi
push edi
mov dword [ebp - 4], esi
call dword [sym.imp.KERNEL32.dll_GetTickCount]
mov dword [ebp - 0xc], esi
mov dword [ebp - 8], esi
mov esi, 0x429c00
push 0x400
push esi
mov ebx, eax
push dword [0x423f20]
add ebx, 0x3e8
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
push 3
push 0x80000000
push esi
call fcn.00406725
mov edi, eax
cmp edi, 0xffffffff
mov dword [0x423f34], edi
jne 0x403a5b
mov eax, str.Error_launching_installer
jmp 0x403d11
push esi
call fcn.0040659f
push 0
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
test eax, eax
mov dword [0x41f4e0], eax
mov esi, eax
jle 0x403bcd
mov eax, dword [0x423f2c]
mov edi, esi
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
jl 0x403a94
mov edi, eax
push edi
push 0x4174e0
call fcn.0040403b
test eax, eax
je 0x403c61
xor eax, eax
cmp dword [0x423f2c], eax
jne 0x403b40
push 0x1c
lea eax, [ebp - 0x28]
push 0x4174e0
push eax
call fcn.004066fb
mov ecx, dword [ebp - 0x28]
test ecx, 0xfffffff0
jne 0x403b95
cmp dword [ebp - 0x24], 0xdeadbeef
jne 0x403b95
cmp dword [ebp - 0x18], 0x74736e49
jne 0x403b95
cmp dword [ebp - 0x1c], 0x74666f73
jne 0x403b95
cmp dword [ebp - 0x20], 0x6c6c754e
jne 0x403b95
mov eax, dword [ebp - 0x10]
cmp eax, esi
jg 0x403cb3
or dword [ebp + 8], ecx
mov edx, dword [0x4174d4]
test byte [ebp + 8], 8
mov dword [0x423f2c], edx
jne 0x403b32
test byte [ebp + 8], 4
jne 0x403bbe
inc dword [ebp - 8]
lea esi, [eax - 4]
cmp edi, esi
jbe 0x403b95
mov edi, esi
jmp 0x403b95
test byte [ebp + 8], 2
jne 0x403b95
cmp dword [ebp - 4], eax
je 0x403b6e
push 1
push eax
push eax
push eax
lea eax, [ebp - 0x44]
push eax
call dword [sym.imp.USER32.dll_PeekMessageA]
test eax, eax
je 0x403b95
lea eax, [ebp - 0x44]
push eax
call dword [sym.imp.USER32.dll_DispatchMessageA]
push 1
xor eax, eax
jmp 0x403b4d
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, ebx
jbe 0x403b95
push str.verifying_installer:__d__
push 0x40393a
push 0
push 0x6f
push dword [0x423f20]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [ebp - 4], eax
cmp esi, dword [0x41f4e0]
jge 0x403bae
push edi
push 0x4174e0
push dword [ebp - 0xc]
call fcn.00401f11
mov dword [ebp - 0xc], eax
add dword [0x4174d4], edi
sub esi, edi
test esi, esi
jg 0x403a79
cmp dword [ebp - 4], 0
je 0x403bcd
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
cmp dword [0x423f2c], 0
je 0x403cb3
cmp dword [ebp - 8], 0
je 0x403c0a
push dword [0x4174d4]
call fcn.0040406d
lea eax, [ebp - 8]
push 4
push eax
call fcn.0040403b
test eax, eax
je 0x403cb3
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp - 8]
jne 0x403cb3
push dword [ebp - 0x14]
call fcn.004064de
push 0x40b440
mov esi, eax
call fcn.00401b64
lea eax, [ebp - 0x148]
push 0x42a400
push eax
call fcn.00406754
xor edi, edi
lea eax, [ebp - 0x148]
push edi
push 0x4000100
push 2
push edi
push edi
push 0xc0000000
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
mov dword [0x409094], eax
jne 0x403c72
mov eax, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
jmp 0x403d11
cmp dword [ebp - 4], 0
je 0x403cb3
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x403cb3
mov eax, dword [0x423f2c]
add eax, 0x1c
push eax
call fcn.0040406d
mov ecx, dword [ebp + 8]
push dword [ebp - 0x14]
not ecx
and ecx, 4
mov dword [0x41f4e4], eax
sub eax, ecx
mov ecx, dword [ebp - 0x10]
push esi
push edi
lea eax, [eax + ecx - 0x1c]
push 0xffffffffffffffff
mov dword [0x4174dc], eax
call fcn.00403d18
cmp eax, dword [ebp - 0x14]
je 0x403cba
push esi
call dword [sym.imp.KERNEL32.dll_GlobalFree]
mov eax, str.The_installer_you_are_trying_to_use_is_corrupted_or_incomplete._r_nThis_could_be_the_result_of_a_damaged_disk__a_failed_download_or_a_virus._r_n_r_nYou_may_want_to_contact_the_author_of_this_installer_to_obtain_a_new_copy._r_n_r_nIt_may_be_possible_to_skip_this_check_using_the__NCRC_command_line_switch_r_n_NOT_RECOMMENDED_.
jmp 0x403d11
test byte [ebp + 8], 2
mov dword [0x423f28], esi
je 0x403cc9
or dword [esi], 8
mov eax, dword [esi]
and eax, 0x18
test byte [ebp - 0x28], 1
mov dword [0x423f9c], eax
mov eax, dword [esi]
mov dword [0x423f30], eax
je 0x403ce6
inc dword [0x423f38]
lea ecx, [esi + 0x34]
push 7
mov eax, ecx
pop edx
add dword [eax], esi
dec edx
sub eax, 8
cmp edx, edi
ja 0x403cee
mov eax, dword [0x4174d8]
add esi, 4
push 0x38
push esi
push 0x423f40
mov dword [ecx], eax
call fcn.004066fb
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4