Function at 0x402c58
Capabilities:
Check for time delay via gettickcount
Get file size

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x12c
push ebx
push esi
push edi
xor edi, edi
mov dword [ebp - 4], edi
call dword [sym.imp.KERNEL32.DLL_GetTickCount]
mov esi, 0x42ac00
push 0x400
mov ebx, eax
push esi
push edi
add ebx, 0x3e8
mov dword [ebp - 8], edi
mov dword [ebp - 0xc], edi
call dword [sym.imp.KERNEL32.DLL_GetModuleFileNameA]
push 3
push 0x80000000
push esi
call fcn.00405844
mov edi, eax
cmp edi, 0xffffffff
mov dword [0x409020], edi
jne 0x402cb3
mov eax, str.Error_launching_installer
jmp 0x402f3e
push esi
call fcn.004056a8
push 0
push edi
call dword [sym.imp.KERNEL32.DLL_GetFileSize]
test eax, eax
mov dword [0x41f118], eax
mov esi, eax
jle 0x402e0d
mov eax, dword [0x42476c]
mov edi, esi
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
jl 0x402cec
mov edi, eax
push edi
push 0x417118
call fcn.00403251
test eax, eax
je 0x402ea4
xor eax, eax
cmp dword [0x42476c], eax
jne 0x402d9b
push 0x1c
lea eax, [ebp - 0x28]
push 0x417118
push eax
call fcn.00405805
mov eax, dword [ebp - 0x28]
test eax, 0xfffffff0
jne 0x402dd5
cmp dword [ebp - 0x24], 0xdeadbeef
jne 0x402dd5
cmp dword [ebp - 0x18], 0x74736e49
jne 0x402dd5
cmp dword [ebp - 0x1c], 0x74666f73
jne 0x402dd5
cmp dword [ebp - 0x20], 0x6c6c754e
jne 0x402dd5
or dword [ebp + 8], eax
mov eax, dword [ebp + 8]
mov ecx, dword [0x417108]
and eax, 2
or dword [0x424800], eax
mov eax, dword [ebp - 0x10]
cmp eax, esi
mov dword [0x42476c], ecx
jg 0x402ef6
test byte [ebp + 8], 8
jne 0x402d8d
test byte [ebp + 8], 4
jne 0x402dfe
inc dword [ebp - 0xc]
lea esi, [eax - 4]
cmp edi, esi
jbe 0x402dd5
mov edi, esi
jmp 0x402dd5
test byte [ebp + 8], 2
jne 0x402dd5
cmp dword [ebp - 4], eax
je 0x402dae
push eax
call fcn.00405e92
jmp 0x402dd5
call dword [sym.imp.KERNEL32.DLL_GetTickCount]
cmp eax, ebx
jbe 0x402dd5
push str.verifying_installer:__d__
push 0x402ba5
push 0
push 0x6f
push dword [0x424760]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [ebp - 4], eax
cmp esi, dword [0x41f118]
jge 0x402dee
push edi
push 0x417118
push dword [ebp - 8]
call fcn.00405ec5
mov dword [ebp - 8], eax
add dword [0x417108], edi
sub esi, edi
test esi, esi
jg 0x402cd1
cmp dword [ebp - 4], 0
je 0x402e0d
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
cmp dword [0x42476c], 0
je 0x402ef6
cmp dword [ebp - 0xc], 0
je 0x402e4a
push dword [0x417108]
call fcn.00403283
lea eax, [ebp + 8]
push 4
push eax
call fcn.00403251
test eax, eax
je 0x402ef6
mov eax, dword [ebp - 8]
cmp eax, dword [ebp + 8]
jne 0x402ef6
push dword [ebp - 0x14]
push 0x40
call dword [sym.imp.KERNEL32.DLL_GlobalAlloc]
mov ecx, 0x40b040
mov esi, eax
call fcn.00405f33
lea eax, [ebp - 0x12c]
push 0x42b400
push eax
call fcn.00405873
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 [0x409024], eax
jne 0x402eb5
mov eax, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
jmp 0x402f3e
cmp dword [ebp - 4], 0
je 0x402ef6
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x402ef6
mov eax, dword [0x42476c]
add eax, 0x1c
push eax
call fcn.00403283
mov ecx, dword [ebp - 0x28]
push dword [ebp - 0x14]
not ecx
and ecx, 4
mov dword [0x41f11c], eax
sub eax, ecx
mov ecx, dword [ebp - 0x10]
push esi
push edi
lea eax, [eax + ecx - 0x1c]
push 0xffffffffffffffff
mov dword [0x417110], eax
call fcn.00402f45
cmp eax, dword [ebp - 0x14]
je 0x402efd
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 0x402f3e
test byte [ebp - 0x28], 1
mov dword [0x424768], esi
mov eax, dword [esi]
mov dword [0x424770], eax
je 0x402f16
inc dword [0x424774]
push 8
lea eax, [esi + 0x44]
pop ecx
sub eax, 8
add dword [eax], esi
dec ecx
jne 0x402f1c
mov eax, dword [0x41710c]
push 0x40
mov dword [esi + 0x3c], eax
add esi, 4
push esi
push 0x424780
call fcn.00405805
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4