Function at 0x402c7d
Capabilities:
Check for time delay via gettickcount
Get file size

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x130
push ebx
push esi
xor ebx, ebx
push edi
mov dword [ebp - 4], ebx
call dword [sym.imp.KERNEL32.dll_GetTickCount]
mov esi, 0x7a9c00
push 0x400
add eax, 0x3e8
push esi
push ebx
mov dword [ebp - 0x10], eax
mov dword [ebp - 8], ebx
mov dword [ebp - 0xc], ebx
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
push 3
push 0x80000000
push esi
call fcn.004057c5
mov edi, eax
cmp edi, 0xffffffff
mov dword [0x409020], edi
jne 0x402cd8
mov eax, str.Error_launching_installer
jmp 0x402f6d
push esi
mov esi, 0x7a8c00
push esi
call fcn.00405aee
push esi
call fcn.00405628
push eax
push 0x7aa000
call fcn.00405aee
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
cmp eax, ebx
mov dword [0x79d920], eax
mov esi, eax
jle 0x402e45
mov eax, dword [0x7a276c]
mov edi, esi
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
jl 0x402d27
mov edi, eax
push edi
push 0x795920
call fcn.00403280
test eax, eax
je 0x402edb
cmp dword [0x7a276c], ebx
jne 0x402dd4
push 0x1c
lea eax, [ebp - 0x2c]
push 0x795920
push eax
call fcn.00405786
mov eax, dword [ebp - 0x2c]
test eax, 0xfffffff0
jne 0x402e0e
cmp dword [ebp - 0x28], 0xdeadbeef
jne 0x402e0e
cmp dword [ebp - 0x1c], 0x74736e49
jne 0x402e0e
cmp dword [ebp - 0x20], 0x74666f73
jne 0x402e0e
cmp dword [ebp - 0x24], 0x6c6c754e
jne 0x402e0e
or dword [ebp + 8], eax
mov eax, dword [ebp + 8]
mov ecx, dword [0x795910]
and eax, 2
or dword [0x7a2800], eax
mov eax, dword [ebp - 0x14]
cmp eax, esi
mov dword [0x7a276c], ecx
jg 0x402f25
test byte [ebp + 8], 8
jne 0x402dc6
test byte [ebp + 8], 4
jne 0x402e37
inc dword [ebp - 0xc]
lea esi, [eax - 4]
cmp edi, esi
jbe 0x402e0e
mov edi, esi
jmp 0x402e0e
test byte [ebp + 8], 2
jne 0x402e0e
cmp dword [ebp - 4], ebx
je 0x402de7
push ebx
call fcn.00405e0d
jmp 0x402e0e
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, dword [ebp - 0x10]
jbe 0x402e0e
push str.verifying_installer:__d__
push 0x402bca
push ebx
push 0x6f
push dword [0x7a2760]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [ebp - 4], eax
cmp esi, dword [0x79d920]
jge 0x402e27
push edi
push 0x795920
push dword [ebp - 8]
call fcn.00405e40
mov dword [ebp - 8], eax
add dword [0x795910], edi
sub esi, edi
cmp esi, ebx
jg 0x402d0c
cmp dword [ebp - 4], ebx
je 0x402e45
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
cmp dword [0x7a276c], ebx
je 0x402f25
cmp dword [ebp - 0xc], ebx
je 0x402e80
push dword [0x795910]
call fcn.004032b2
lea eax, [ebp + 8]
push 4
push eax
call fcn.00403280
test eax, eax
je 0x402f25
mov eax, dword [ebp - 8]
cmp eax, dword [ebp + 8]
jne 0x402f25
push dword [ebp - 0x18]
push 0x40
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
mov esi, eax
lea eax, [ebp - 0x130]
push 0x7a9400
push eax
mov byte [0x40b018], 0xb
mov dword [0x40b030], ebx
call fcn.004057f4
push ebx
push 0x4000100
push 2
push ebx
push ebx
lea eax, [ebp - 0x130]
push 0xc0000000
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
mov dword [0x409024], eax
jne 0x402eeb
mov eax, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
jmp 0x402f6d
cmp dword [ebp - 4], ebx
je 0x402f25
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x402f25
mov eax, dword [0x7a276c]
add eax, 0x1c
push eax
call fcn.004032b2
mov ecx, dword [ebp - 0x2c]
push dword [ebp - 0x18]
not ecx
and ecx, 4
mov dword [0x79d924], eax
sub eax, ecx
mov ecx, dword [ebp - 0x14]
push esi
push ebx
lea eax, [eax + ecx - 0x1c]
push 0xffffffffffffffff
mov dword [0x795918], eax
call fcn.00402f74
cmp eax, dword [ebp - 0x18]
je 0x402f2c
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 0x402f6d
test byte [ebp - 0x2c], 1
mov dword [0x7a2768], esi
mov eax, dword [esi]
mov dword [0x7a2770], eax
je 0x402f45
inc dword [0x7a2774]
push 8
lea eax, [esi + 0x44]
pop ecx
sub eax, 8
add dword [eax], esi
dec ecx
jne 0x402f4b
mov eax, dword [0x795914]
push 0x40
mov dword [esi + 0x3c], eax
add esi, 4
push esi
push 0x7a2780
call fcn.00405786
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4