Function at 0x402c31
Capabilities:
Check for time delay via gettickcount
Get file size

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x2c
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
mov edi, eax
push esi
push ebx
add edi, 0x3e8
mov dword [ebp - 0xc], ebx
mov dword [ebp - 8], ebx
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
push 3
push 0x80000000
push esi
call fcn.0040568a
mov ebx, eax
cmp ebx, 0xffffffff
mov dword [ebp - 0x10], ebx
mov dword [0x409020], ebx
jne 0x402c8c
mov eax, str.Error_launching_installer
jmp 0x402eab
push esi
call fcn.004054ee
push 0
push ebx
call dword [sym.imp.KERNEL32.dll_GetFileSize]
test eax, eax
mov dword [0x41f0f0], eax
mov esi, eax
jle 0x402de6
mov eax, dword [0x42474c]
mov ebx, esi
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
jl 0x402cc5
mov ebx, eax
push ebx
push 0x4170f0
call fcn.004030af
test eax, eax
je 0x402e51
xor eax, eax
cmp dword [0x42474c], eax
jne 0x402d74
push 0x1c
lea eax, [ebp - 0x2c]
push 0x4170f0
push eax
call fcn.0040564b
mov eax, dword [ebp - 0x2c]
test eax, 0xfffffff0
jne 0x402dae
cmp dword [ebp - 0x28], 0xdeadbeef
jne 0x402dae
cmp dword [ebp - 0x1c], 0x74736e49
jne 0x402dae
cmp dword [ebp - 0x20], 0x74666f73
jne 0x402dae
cmp dword [ebp - 0x24], 0x6c6c754e
jne 0x402dae
or dword [ebp + 8], eax
mov eax, dword [ebp + 8]
mov ecx, dword [0x40b0e8]
and eax, 2
or dword [0x4247e0], eax
mov eax, dword [ebp - 0x14]
cmp eax, esi
mov dword [0x42474c], ecx
jg 0x402e4a
test byte [ebp + 8], 8
jne 0x402d66
test byte [ebp + 8], 4
jne 0x402dd7
inc dword [ebp - 8]
lea esi, [eax - 4]
cmp ebx, esi
jbe 0x402dae
mov ebx, esi
jmp 0x402dae
test byte [ebp + 8], 2
jne 0x402dae
cmp dword [ebp - 4], eax
je 0x402d87
push eax
call fcn.00405cd8
jmp 0x402dae
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, edi
jbe 0x402dae
push str.verifying_installer:__d__
push 0x402ba5
push 0
push 0x6f
push dword [0x424740]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [ebp - 4], eax
cmp esi, dword [0x41f0f0]
jge 0x402dc7
push ebx
push 0x4170f0
push dword [ebp - 0xc]
call fcn.00405d0b
mov dword [ebp - 0xc], eax
add dword [0x40b0e8], ebx
sub esi, ebx
test esi, esi
jg 0x402caa
cmp dword [ebp - 4], 0
je 0x402de6
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
xor edi, edi
cmp dword [0x42474c], edi
je 0x402e4a
cmp dword [ebp - 8], edi
je 0x402e17
push dword [0x40b0e8]
call fcn.004030e1
lea eax, [ebp + 8]
push 4
push eax
call fcn.004030af
test eax, eax
je 0x402e4a
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp + 8]
jne 0x402e4a
push dword [ebp - 0x18]
push 0x40
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
mov esi, eax
mov eax, dword [0x42474c]
add eax, 0x1c
push eax
call fcn.004030e1
push dword [ebp - 0x18]
push esi
push edi
push 0xffffffffffffffff
call fcn.00402eb2
cmp eax, dword [ebp - 0x18]
je 0x402e62
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 0x402eab
cmp dword [ebp - 4], 0
je 0x402e4a
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x402e4a
test byte [ebp - 0x2c], 1
mov dword [0x424748], esi
mov eax, dword [esi]
mov dword [0x424750], eax
je 0x402e7b
inc dword [0x424754]
push 8
lea eax, [esi + 0x44]
pop ecx
sub eax, 8
add dword [eax], esi
dec ecx
jne 0x402e81
push 1
push edi
push edi
push dword [ebp - 0x10]
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
mov dword [esi + 0x3c], eax
add esi, 4
push 0x40
push esi
push 0x424760
call fcn.0040564b
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4