Function at 0x403315
Capabilities:
Check for time delay via gettickcount
Get file size

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x12c
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, 0x481000
push 0x2000
push esi
mov ebx, eax
push dword [0x452b40]
add ebx, 0x3e8
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
push 3
push 0x80000000
push esi
call fcn.00406183
mov edi, eax
cmp edi, 0xffffffff
mov dword [0x40a5d0], edi
jne 0x403375
mov eax, str.Error_launching_installer
jmp 0x403603
push esi
call fcn.00405ffe
push 0
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
test eax, eax
mov dword [0x4294bc], eax
mov esi, eax
jle 0x4034bc
mov eax, dword [0x452b4c]
mov edi, esi
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
jl 0x4033ae
mov edi, eax
push edi
push 0x4214bc
call fcn.00403915
test eax, eax
je 0x403553
xor eax, eax
cmp dword [0x452b4c], eax
jne 0x40344a
push 0x1c
lea eax, [ebp - 0x28]
push 0x4214bc
push eax
call fcn.0040615d
mov ecx, dword [ebp - 0x28]
test ecx, 0xfffffff0
jne 0x403484
cmp dword [ebp - 0x24], 0xdeadbeef
jne 0x403484
cmp dword [ebp - 0x18], 0x74736e49
jne 0x403484
cmp dword [ebp - 0x1c], 0x74666f73
jne 0x403484
cmp dword [ebp - 0x20], 0x6c6c754e
jne 0x403484
mov eax, dword [ebp - 0x10]
cmp eax, esi
jg 0x4035a5
or dword [ebp + 8], ecx
mov edx, dword [0x4214b0]
test byte [ebp + 8], 8
mov dword [0x452b4c], edx
jne 0x40343c
test byte [ebp + 8], 4
jne 0x4034ad
inc dword [ebp - 8]
lea esi, [eax - 4]
cmp edi, esi
jbe 0x403484
mov edi, esi
jmp 0x403484
test byte [ebp + 8], 2
jne 0x403484
cmp dword [ebp - 4], eax
je 0x40345d
push eax
call fcn.004069c4
jmp 0x403484
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, ebx
jbe 0x403484
push str.verifying_installer:__d__
push 0x403262
push 0
push 0x6f
push dword [0x452b40]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [ebp - 4], eax
cmp esi, dword [0x4294bc]
jge 0x40349d
push edi
push 0x4214bc
push dword [ebp - 0xc]
call fcn.00406a01
mov dword [ebp - 0xc], eax
add dword [0x4214b0], edi
sub esi, edi
test esi, esi
jg 0x403393
cmp dword [ebp - 4], 0
je 0x4034bc
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
cmp dword [0x452b4c], 0
je 0x4035a5
cmp dword [ebp - 8], 0
je 0x4034f9
push dword [0x4214b0]
call fcn.00403947
lea eax, [ebp - 8]
push 4
push eax
call fcn.00403915
test eax, eax
je 0x4035a5
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp - 8]
jne 0x4035a5
push dword [ebp - 0x14]
push 0x40
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
mov ecx, 0x4153e8
mov esi, eax
call fcn.00406a77
lea eax, [ebp - 0x12c]
push 0x485000
push eax
call fcn.004061b2
xor edi, edi
lea eax, [ebp - 0x12c]
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 [0x40a5d4], eax
jne 0x403564
mov eax, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
jmp 0x403603
cmp dword [ebp - 4], 0
je 0x4035a5
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x4035a5
mov eax, dword [0x452b4c]
add eax, 0x1c
push eax
call fcn.00403947
mov ecx, dword [ebp - 0x28]
push dword [ebp - 0x14]
not ecx
and ecx, 4
mov dword [0x4294c0], eax
sub eax, ecx
mov ecx, dword [ebp - 0x10]
push esi
push edi
lea eax, [eax + ecx - 0x1c]
push 0xffffffffffffffff
mov dword [0x4214b8], eax
call fcn.0040360a
cmp eax, dword [ebp - 0x14]
je 0x4035ac
push esi
call dword [sym.imp.KERNEL32.dll_GlobalFree]
mov eax, str.The_installer_you_are_trying_to_use_is_corrupted_or_incomplete._nThis_could_be_the_result_of_a_damaged_disk__a_failed_download_or_a_virus._n_nYou_may_want_to_contact_the_author_of_this_installer_to_obtain_a_new_copy._n_nIt_may_be_possible_to_skip_this_check_using_the__NCRC_command_line_switch_n_NOT_RECOMMENDED_.
jmp 0x403603
test byte [ebp + 8], 2
mov dword [0x452b48], esi
je 0x4035bb
or dword [esi], 8
mov eax, dword [esi]
and eax, 0x18
test byte [ebp - 0x28], 1
mov dword [0x452be0], eax
mov eax, dword [esi]
mov dword [0x452b50], eax
je 0x4035d8
inc dword [0x452b54]
lea ecx, [esi + 0x3c]
push 8
mov eax, ecx
pop edx
add dword [eax], esi
dec edx
sub eax, 8
cmp edx, edi
ja 0x4035e0
mov eax, dword [0x4214b4]
add esi, 4
push 0x40
push esi
push 0x452b60
mov dword [ecx], eax
call fcn.0040615d
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4