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
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, 0x42ac00
push 0x400
push esi
mov ebx, eax
push dword [0x424340]
add ebx, 0x3e8
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
push 3
push 0x80000000
push esi
call fcn.004057be
mov edi, eax
cmp edi, 0xffffffff
mov dword [0x40901c], edi
jne 0x402cb8
mov eax, str.Error_launching_installer
jmp 0x402f43
push esi
call fcn.00405641
push 0
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
test eax, eax
mov dword [0x41f118], eax
mov esi, eax
jle 0x402dff
mov eax, dword [0x42434c]
mov edi, esi
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
jl 0x402cf1
mov edi, eax
push edi
push 0x417118
call fcn.00403256
test eax, eax
je 0x402e96
xor eax, eax
cmp dword [0x42434c], eax
jne 0x402d8d
push 0x1c
lea eax, [ebp - 0x28]
push 0x417118
push eax
call fcn.0040579e
mov ecx, dword [ebp - 0x28]
test ecx, 0xfffffff0
jne 0x402dc7
cmp dword [ebp - 0x24], 0xdeadbeef
jne 0x402dc7
cmp dword [ebp - 0x18], 0x74736e49
jne 0x402dc7
cmp dword [ebp - 0x1c], 0x74666f73
jne 0x402dc7
cmp dword [ebp - 0x20], 0x6c6c754e
jne 0x402dc7
mov eax, dword [ebp - 0x10]
cmp eax, esi
jg 0x402ee8
or dword [ebp + 8], ecx
mov edx, dword [0x417108]
test byte [ebp + 8], 8
mov dword [0x42434c], edx
jne 0x402d7f
test byte [ebp + 8], 4
jne 0x402df0
inc dword [ebp - 8]
lea esi, [eax - 4]
cmp edi, esi
jbe 0x402dc7
mov edi, esi
jmp 0x402dc7
test byte [ebp + 8], 2
jne 0x402dc7
cmp dword [ebp - 4], eax
je 0x402da0
push eax
call fcn.00405e31
jmp 0x402dc7
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, ebx
jbe 0x402dc7
push str.verifying_installer:__d__
push 0x402ba5
push 0
push 0x6f
push dword [0x424340]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [ebp - 4], eax
cmp esi, dword [0x41f118]
jge 0x402de0
push edi
push 0x417118
push dword [ebp - 0xc]
call fcn.00405e64
mov dword [ebp - 0xc], eax
add dword [0x417108], edi
sub esi, edi
test esi, esi
jg 0x402cd6
cmp dword [ebp - 4], 0
je 0x402dff
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
cmp dword [0x42434c], 0
je 0x402ee8
cmp dword [ebp - 8], 0
je 0x402e3c
push dword [0x417108]
call fcn.00403288
lea eax, [ebp - 8]
push 4
push eax
call fcn.00403256
test eax, eax
je 0x402ee8
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp - 8]
jne 0x402ee8
push dword [ebp - 0x14]
push 0x40
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
mov ecx, 0x40b040
mov esi, eax
call fcn.00405ed2
lea eax, [ebp - 0x12c]
push 0x42b400
push eax
call fcn.004057ed
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 [0x409020], eax
jne 0x402ea7
mov eax, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
jmp 0x402f43
cmp dword [ebp - 4], 0
je 0x402ee8
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x402ee8
mov eax, dword [0x42434c]
add eax, 0x1c
push eax
call fcn.00403288
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.00402f4a
cmp eax, dword [ebp - 0x14]
je 0x402eef
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 0x402f43
test byte [ebp + 8], 2
mov dword [0x424348], esi
je 0x402efe
or dword [esi], 8
mov eax, dword [esi]
and eax, 0x18
test byte [ebp - 0x28], 1
mov dword [0x4243e0], eax
mov eax, dword [esi]
mov dword [0x424350], eax
je 0x402f1b
inc dword [0x424354]
push 8
lea eax, [esi + 0x44]
pop ecx
sub eax, 8
add dword [eax], esi
dec ecx
jne 0x402f21
mov eax, dword [0x41710c]
push 0x40
mov dword [esi + 0x3c], eax
add esi, 4
push esi
push 0x424360
call fcn.0040579e
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4