Function at 0x402c7e
Capabilities:
Check for time delay via gettickcount
Get file size

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x14c
push ebx
push esi
xor ebx, ebx
push edi
mov dword [ebp - 4], ebx
call dword [sym.imp.KERNEL32.dll_GetTickCount]
mov esi, 0x42ac00
push 0x400
push esi
add eax, 0x3e8
push dword [0x424340]
mov dword [ebp - 8], eax
mov dword [ebp - 0xc], ebx
mov dword [ebp - 0x10], ebx
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
push 3
push 0x80000000
push esi
call fcn.004057f3
mov edi, eax
cmp edi, 0xffffffff
mov dword [0x40901c], edi
jne 0x402cde
mov eax, str.Error_launching_installer
jmp 0x402f7d
push esi
call fcn.0040567b
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
cmp eax, ebx
mov dword [0x41f110], eax
mov esi, eax
jle 0x402e51
mov eax, dword [0x42434c]
mov edi, esi
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
jl 0x402d16
mov edi, eax
push edi
push 0x417110
call fcn.004032b3
test eax, eax
je 0x402e2c
cmp dword [0x42434c], ebx
jne 0x402db0
push 0x1c
lea eax, [ebp - 0x2c]
push 0x417110
push eax
call fcn.004057d3
mov ecx, dword [ebp - 0x2c]
test ecx, 0xfffffff0
jne 0x402de2
cmp dword [ebp - 0x28], 0xdeadbeef
jne 0x402de2
cmp dword [ebp - 0x1c], 0x74736e49
jne 0x402de2
cmp dword [ebp - 0x20], 0x74666f73
jne 0x402de2
cmp dword [ebp - 0x24], 0x6c6c754e
jne 0x402de2
mov eax, dword [ebp - 0x14]
cmp eax, esi
jg 0x402f22
or dword [ebp + 8], ecx
mov edx, dword [0x417100]
test byte [ebp + 8], 8
mov dword [0x42434c], edx
jne 0x402da2
test byte [ebp + 8], 4
jne 0x402e43
inc dword [ebp - 0x10]
lea esi, [eax - 4]
cmp edi, esi
jbe 0x402de2
mov edi, esi
jmp 0x402de2
test byte [ebp + 8], 2
jne 0x402de2
cmp dword [ebp - 4], ebx
jne 0x402e17
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, dword [ebp - 8]
jbe 0x402de2
push str.verifying_installer:__d__
push 0x402bcb
push ebx
push 0x6f
push dword [0x424340]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [ebp - 4], eax
cmp esi, dword [0x41f110]
jge 0x402dfb
push edi
push 0x417110
push dword [ebp - 0xc]
call fcn.00405e4d
mov dword [ebp - 0xc], eax
add dword [0x417100], edi
sub esi, edi
cmp esi, ebx
jg 0x402cfb
jmp 0x402e43
lea eax, [ebp - 0x48]
push eax
call dword [sym.imp.USER32.dll_DispatchMessageA]
push 1
push ebx
push ebx
lea eax, [ebp - 0x48]
push ebx
push eax
call dword [sym.imp.USER32.dll_PeekMessageA]
test eax, eax
jne 0x402e0d
jmp 0x402de2
cmp dword [ebp - 4], ebx
je 0x402f22
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x402f22
cmp dword [ebp - 4], ebx
je 0x402e51
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
cmp dword [0x42434c], ebx
je 0x402f22
cmp dword [ebp - 0x10], ebx
je 0x402e8c
push dword [0x417100]
call fcn.004032e5
lea eax, [ebp - 8]
push 4
push eax
call fcn.004032b3
test eax, eax
je 0x402f22
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp - 8]
jne 0x402f22
push dword [ebp - 0x18]
call fcn.00405480
mov ecx, 0x40b038
mov esi, eax
call fcn.00405ebb
lea eax, [ebp - 0x14c]
push 0x42b400
push eax
call fcn.00405822
push ebx
push 0x4000100
push 2
push ebx
push ebx
lea eax, [ebp - 0x14c]
push 0xc0000000
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
mov dword [0x409020], eax
jne 0x402ee1
mov eax, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
jmp 0x402f7d
mov eax, dword [0x42434c]
add eax, 0x1c
push eax
call fcn.004032e5
mov ecx, dword [ebp - 0x2c]
push dword [ebp - 0x18]
not ecx
and ecx, 4
mov dword [0x41f114], eax
sub eax, ecx
mov ecx, dword [ebp - 0x14]
push esi
push ebx
lea eax, [eax + ecx - 0x1c]
push 0xffffffffffffffff
mov dword [0x417108], eax
call fcn.00402f84
cmp eax, dword [ebp - 0x18]
je 0x402f29
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 0x402f7d
test byte [ebp + 8], 2
mov dword [0x424348], esi
je 0x402f38
or dword [esi], 8
mov eax, dword [esi]
and eax, 0x18
test byte [ebp - 0x2c], 1
mov dword [0x4243e0], eax
mov eax, dword [esi]
mov dword [0x424350], eax
je 0x402f55
inc dword [0x424354]
push 8
lea eax, [esi + 0x44]
pop ecx
sub eax, 8
add dword [eax], esi
dec ecx
jne 0x402f5b
mov eax, dword [0x417104]
push 0x40
mov dword [esi + 0x3c], eax
add esi, 4
push esi
push 0x424360
call fcn.004057d3
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4