Function at 0x402cab
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, 0x42bc00
push 0x400
push esi
mov ebx, eax
push dword [0x425480]
add ebx, 0x3e8
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
push 3
push 0x80000000
push esi
call fcn.004058fd
mov edi, eax
cmp edi, 0xffffffff
mov dword [0x40a020], edi
jne 0x402d0b
mov eax, str.Error_launching_installer
jmp 0x402f99
push esi
call fcn.00405778
push 0
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
test eax, eax
mov dword [0x42024c], eax
mov esi, eax
jle 0x402e52
mov eax, dword [0x42548c]
mov edi, esi
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
jl 0x402d44
mov edi, eax
push edi
push 0x41824c
call fcn.004032bb
test eax, eax
je 0x402ee9
xor eax, eax
cmp dword [0x42548c], eax
jne 0x402de0
push 0x1c
lea eax, [ebp - 0x28]
push 0x41824c
push eax
call fcn.004058d7
mov ecx, dword [ebp - 0x28]
test ecx, 0xfffffff0
jne 0x402e1a
cmp dword [ebp - 0x24], 0xdeadbeef
jne 0x402e1a
cmp dword [ebp - 0x18], 0x74736e49
jne 0x402e1a
cmp dword [ebp - 0x1c], 0x74666f73
jne 0x402e1a
cmp dword [ebp - 0x20], 0x6c6c754e
jne 0x402e1a
mov eax, dword [ebp - 0x10]
cmp eax, esi
jg 0x402f3b
or dword [ebp + 8], ecx
mov edx, dword [0x418240]
test byte [ebp + 8], 8
mov dword [0x42548c], edx
jne 0x402dd2
test byte [ebp + 8], 4
jne 0x402e43
inc dword [ebp - 8]
lea esi, [eax - 4]
cmp edi, esi
jbe 0x402e1a
mov edi, esi
jmp 0x402e1a
test byte [ebp + 8], 2
jne 0x402e1a
cmp dword [ebp - 4], eax
je 0x402df3
push eax
call fcn.00405fa3
jmp 0x402e1a
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, ebx
jbe 0x402e1a
push str.verifying_installer:__d__
push 0x402bf8
push 0
push 0x6f
push dword [0x425480]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [ebp - 4], eax
cmp esi, dword [0x42024c]
jge 0x402e33
push edi
push 0x41824c
push dword [ebp - 0xc]
call fcn.00405fe0
mov dword [ebp - 0xc], eax
add dword [0x418240], edi
sub esi, edi
test esi, esi
jg 0x402d29
cmp dword [ebp - 4], 0
je 0x402e52
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
cmp dword [0x42548c], 0
je 0x402f3b
cmp dword [ebp - 8], 0
je 0x402e8f
push dword [0x418240]
call fcn.004032ed
lea eax, [ebp - 8]
push 4
push eax
call fcn.004032bb
test eax, eax
je 0x402f3b
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp - 8]
jne 0x402f3b
push dword [ebp - 0x14]
push 0x40
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
mov ecx, 0x40c038
mov esi, eax
call fcn.00406e51
lea eax, [ebp - 0x12c]
push 0x42c400
push eax
call fcn.0040592c
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 [0x40a024], eax
jne 0x402efa
mov eax, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
jmp 0x402f99
cmp dword [ebp - 4], 0
je 0x402f3b
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x402f3b
mov eax, dword [0x42548c]
add eax, 0x1c
push eax
call fcn.004032ed
mov ecx, dword [ebp - 0x28]
push dword [ebp - 0x14]
not ecx
and ecx, 4
mov dword [0x420250], eax
sub eax, ecx
mov ecx, dword [ebp - 0x10]
push esi
push edi
lea eax, [eax + ecx - 0x1c]
push 0xffffffffffffffff
mov dword [0x418248], eax
call fcn.00402fa0
cmp eax, dword [ebp - 0x14]
je 0x402f42
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 0x402f99
test byte [ebp + 8], 2
mov dword [0x425488], esi
je 0x402f51
or dword [esi], 8
mov eax, dword [esi]
and eax, 0x18
test byte [ebp - 0x28], 1
mov dword [0x425520], eax
mov eax, dword [esi]
mov dword [0x425490], eax
je 0x402f6e
inc dword [0x425494]
lea ecx, [esi + 0x3c]
push 8
mov eax, ecx
pop edx
add dword [eax], esi
dec edx
sub eax, 8
cmp edx, edi
ja 0x402f76
mov eax, dword [0x418244]
add esi, 4
push 0x40
push esi
push 0x4254a0
mov dword [ecx], eax
call fcn.004058d7
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4