Function at 0x403050
Capabilities:
Check for time delay via gettickcount
Get file size

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x2c
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, 0x42bc00
push 0x400
push esi
mov edi, eax
push dword [0x425ae0]
add edi, 0x3e8
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
push 3
push 0x80000000
push esi
call fcn.00405bd2
mov ebx, eax
cmp ebx, 0xffffffff
mov dword [ebp - 0x10], ebx
mov dword [0x4095c4], ebx
jne 0x4030b0
mov eax, str.Error_launching_installer
jmp 0x4032cf
push esi
call fcn.00405a36
push 0
push ebx
call dword [sym.imp.KERNEL32.dll_GetFileSize]
test eax, eax
mov dword [0x41f888], eax
mov esi, eax
jle 0x4031f7
mov eax, dword [0x425aec]
mov ebx, esi
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
jl 0x4030e9
mov ebx, eax
push ebx
push 0x417888
call fcn.004034d3
test eax, eax
je 0x403262
xor eax, eax
cmp dword [0x425aec], eax
jne 0x403185
push 0x1c
lea eax, [ebp - 0x2c]
push 0x417888
push eax
call fcn.00405b93
mov ecx, dword [ebp - 0x2c]
test ecx, 0xfffffff0
jne 0x4031bf
cmp dword [ebp - 0x28], 0xdeadbeef
jne 0x4031bf
cmp dword [ebp - 0x1c], 0x74736e49
jne 0x4031bf
cmp dword [ebp - 0x20], 0x74666f73
jne 0x4031bf
cmp dword [ebp - 0x24], 0x6c6c754e
jne 0x4031bf
mov eax, dword [ebp - 0x14]
cmp eax, esi
jg 0x40325b
or dword [ebp + 8], ecx
mov edx, dword [0x40b880]
test byte [ebp + 8], 8
mov dword [0x425aec], edx
jne 0x403177
test byte [ebp + 8], 4
jne 0x4031e8
inc dword [ebp - 8]
lea esi, [eax - 4]
cmp ebx, esi
jbe 0x4031bf
mov ebx, esi
jmp 0x4031bf
test byte [ebp + 8], 2
jne 0x4031bf
cmp dword [ebp - 4], eax
je 0x403198
push eax
call fcn.004063e6
jmp 0x4031bf
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, edi
jbe 0x4031bf
push str.verifying_installer:__d__
push 0x402fc4
push 0
push 0x6f
push dword [0x425ae0]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [ebp - 4], eax
cmp esi, dword [0x41f888]
jge 0x4031d8
push ebx
push 0x417888
push dword [ebp - 0xc]
call fcn.00406419
mov dword [ebp - 0xc], eax
add dword [0x40b880], ebx
sub esi, ebx
test esi, esi
jg 0x4030ce
cmp dword [ebp - 4], 0
je 0x4031f7
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
xor edi, edi
cmp dword [0x425aec], edi
je 0x40325b
cmp dword [ebp - 8], edi
je 0x403228
push dword [0x40b880]
call fcn.00403505
lea eax, [ebp - 8]
push 4
push eax
call fcn.004034d3
test eax, eax
je 0x40325b
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp - 8]
jne 0x40325b
push dword [ebp - 0x18]
push 0x40
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
mov esi, eax
mov eax, dword [0x425aec]
add eax, 0x1c
push eax
call fcn.00403505
push dword [ebp - 0x18]
push esi
push edi
push 0xffffffffffffffff
call fcn.004032d6
cmp eax, dword [ebp - 0x18]
je 0x403273
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 0x4032cf
cmp dword [ebp - 4], 0
je 0x40325b
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x40325b
test byte [ebp + 8], 2
mov dword [0x425ae8], esi
je 0x403282
or dword [esi], 8
mov eax, dword [esi]
and eax, 0x18
test byte [ebp - 0x2c], 1
mov dword [0x425b80], eax
mov eax, dword [esi]
mov dword [0x425af0], eax
je 0x40329f
inc dword [0x425af4]
push 8
lea eax, [esi + 0x44]
pop ecx
sub eax, 8
add dword [eax], esi
dec ecx
jne 0x4032a5
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 0x425b00
call fcn.00405b93
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4