Function at 0x402fe5
Capabilities:
Check for time delay via gettickcount
Get file size

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x2c
push ebx
push esi
xor ebx, ebx
push edi
mov dword [ebp - 4], ebx
call dword [sym.imp.KERNEL32.dll_GetTickCount]
mov esi, 0x438c00
push 0x400
mov edi, eax
push esi
push ebx
add edi, 0x3e8
mov dword [ebp - 0xc], ebx
mov dword [ebp - 8], ebx
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
push 3
push 0x80000000
push esi
call fcn.00405b25
mov ebx, eax
cmp ebx, 0xffffffff
mov dword [ebp - 0x10], ebx
mov dword [0x40a5e8], ebx
jne 0x403040
mov eax, str.Error_launching_installer
jmp 0x40326f
push esi
mov esi, 0x437c00
push esi
call fcn.00405e4e
push esi
call fcn.00405988
push eax
push 0x439000
call fcn.00405e4e
push 0
push ebx
call dword [sym.imp.KERNEL32.dll_GetFileSize]
test eax, eax
mov dword [0x42a410], eax
mov esi, eax
jle 0x4031b1
mov eax, dword [0x431010]
mov ebx, esi
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
jl 0x403090
mov ebx, eax
push ebx
push 0x422410
call fcn.004034a2
test eax, eax
je 0x403215
xor eax, eax
cmp dword [0x431010], eax
jne 0x40313f
push 0x1c
lea eax, [ebp - 0x2c]
push 0x422410
push eax
call fcn.00405ae6
mov eax, dword [ebp - 0x2c]
test eax, 0xfffffff0
jne 0x403179
cmp dword [ebp - 0x28], 0xdeadbeef
jne 0x403179
cmp dword [ebp - 0x1c], 0x74736e49
jne 0x403179
cmp dword [ebp - 0x20], 0x74666f73
jne 0x403179
cmp dword [ebp - 0x24], 0x6c6c754e
jne 0x403179
or dword [ebp + 8], eax
mov eax, dword [ebp + 8]
mov ecx, dword [0x416408]
and eax, 2
or dword [0x4310a0], eax
mov eax, dword [ebp - 0x14]
cmp eax, esi
mov dword [0x431010], ecx
jg 0x40320e
test byte [ebp + 8], 8
jne 0x403131
test byte [ebp + 8], 4
jne 0x4031a2
inc dword [ebp - 8]
lea esi, [eax - 4]
cmp ebx, esi
jbe 0x403179
mov ebx, esi
jmp 0x403179
test byte [ebp + 8], 2
jne 0x403179
cmp dword [ebp - 4], eax
je 0x403152
push eax
call fcn.0040632d
jmp 0x403179
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, edi
jbe 0x403179
push str.verifying_installer:__d__
push 0x402f59
push 0
push 0x6f
push dword [0x431000]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [ebp - 4], eax
cmp esi, dword [0x42a410]
jge 0x403192
push ebx
push 0x422410
push dword [ebp - 0xc]
call fcn.00406360
mov dword [ebp - 0xc], eax
add dword [0x416408], ebx
sub esi, ebx
test esi, esi
jg 0x403075
cmp dword [ebp - 4], 0
je 0x4031b1
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
xor edi, edi
cmp dword [0x431010], edi
je 0x40320e
cmp dword [ebp - 8], edi
je 0x4031e2
push dword [0x416408]
call fcn.004034d4
lea eax, [ebp + 8]
push 4
push eax
call fcn.004034a2
test eax, eax
je 0x40320e
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp + 8]
jne 0x40320e
push dword [ebp - 0x18]
push 0x40
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
mov esi, eax
mov eax, dword [0x431010]
add eax, 0x1c
push eax
call fcn.004034d4
push dword [ebp - 0x18]
push esi
push edi
push 0xffffffffffffffff
call fcn.00403276
cmp eax, dword [ebp - 0x18]
je 0x403226
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 0x40326f
cmp dword [ebp - 4], 0
je 0x40320e
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x40320e
test byte [ebp - 0x2c], 1
mov dword [0x43100c], esi
mov eax, dword [esi]
mov dword [0x431014], eax
je 0x40323f
inc dword [0x431018]
push 8
lea eax, [esi + 0x44]
pop ecx
sub eax, 8
add dword [eax], esi
dec ecx
jne 0x403245
push 1
push edi
push edi
push dword [ebp - 0x10]
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
mov dword [esi + 0x3c], eax
add esi, 4
push 0x40
push esi
push 0x431020
call fcn.00405ae6
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4