Function at 0x402c56
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.00405611
mov ebx, eax
cmp ebx, 0xffffffff
mov dword [ebp - 0x10], ebx
mov dword [0x409020], ebx
jne 0x402cb1
mov eax, str.Error_launching_installer
jmp 0x402ee0
push esi
mov esi, 0x429c00
push esi
call fcn.0040593a
push esi
call fcn.00405474
push eax
push 0x42b000
call fcn.0040593a
push 0
push ebx
call dword [sym.imp.KERNEL32.dll_GetFileSize]
test eax, eax
mov dword [0x41f0c0], eax
mov esi, eax
jle 0x402e22
mov eax, dword [0x423f0c]
mov ebx, esi
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
jl 0x402d01
mov ebx, eax
push ebx
push 0x4170c0
call fcn.004030e4
test eax, eax
je 0x402e86
xor eax, eax
cmp dword [0x423f0c], eax
jne 0x402db0
push 0x1c
lea eax, [ebp - 0x2c]
push 0x4170c0
push eax
call fcn.004055d2
mov eax, dword [ebp - 0x2c]
test eax, 0xfffffff0
jne 0x402dea
cmp dword [ebp - 0x28], 0xdeadbeef
jne 0x402dea
cmp dword [ebp - 0x1c], 0x74736e49
jne 0x402dea
cmp dword [ebp - 0x20], 0x74666f73
jne 0x402dea
cmp dword [ebp - 0x24], 0x6c6c754e
jne 0x402dea
or dword [ebp + 8], eax
mov eax, dword [ebp + 8]
mov ecx, dword [0x40b0b8]
and eax, 2
or dword [0x423fa0], eax
mov eax, dword [ebp - 0x14]
cmp eax, esi
mov dword [0x423f0c], ecx
jg 0x402e7f
test byte [ebp + 8], 8
jne 0x402da2
test byte [ebp + 8], 4
jne 0x402e13
inc dword [ebp - 8]
lea esi, [eax - 4]
cmp ebx, esi
jbe 0x402dea
mov ebx, esi
jmp 0x402dea
test byte [ebp + 8], 2
jne 0x402dea
cmp dword [ebp - 4], eax
je 0x402dc3
push eax
call fcn.00405c59
jmp 0x402dea
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, edi
jbe 0x402dea
push str.verifying_installer:__d__
push 0x402bca
push 0
push 0x6f
push dword [0x423f00]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [ebp - 4], eax
cmp esi, dword [0x41f0c0]
jge 0x402e03
push ebx
push 0x4170c0
push dword [ebp - 0xc]
call fcn.00405c8c
mov dword [ebp - 0xc], eax
add dword [0x40b0b8], ebx
sub esi, ebx
test esi, esi
jg 0x402ce6
cmp dword [ebp - 4], 0
je 0x402e22
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
xor edi, edi
cmp dword [0x423f0c], edi
je 0x402e7f
cmp dword [ebp - 8], edi
je 0x402e53
push dword [0x40b0b8]
call fcn.00403116
lea eax, [ebp + 8]
push 4
push eax
call fcn.004030e4
test eax, eax
je 0x402e7f
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp + 8]
jne 0x402e7f
push dword [ebp - 0x18]
push 0x40
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
mov esi, eax
mov eax, dword [0x423f0c]
add eax, 0x1c
push eax
call fcn.00403116
push dword [ebp - 0x18]
push esi
push edi
push 0xffffffffffffffff
call fcn.00402ee7
cmp eax, dword [ebp - 0x18]
je 0x402e97
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 0x402ee0
cmp dword [ebp - 4], 0
je 0x402e7f
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x402e7f
test byte [ebp - 0x2c], 1
mov dword [0x423f08], esi
mov eax, dword [esi]
mov dword [0x423f10], eax
je 0x402eb0
inc dword [0x423f14]
push 8
lea eax, [esi + 0x44]
pop ecx
sub eax, 8
add dword [eax], esi
dec ecx
jne 0x402eb6
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 0x423f20
call fcn.004055d2
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4