Function at 0x403775
Capabilities:
Check for time delay via gettickcount
Get file size

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x14c
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
push esi
add eax, 0x3e8
push dword [0x424340]
mov dword [ebp - 8], eax
mov dword [ebp - 0xc], ebx
mov dword [ebp - 0x10], ebx
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
push 3
push 0x80000000
push esi
call fcn.00406300
mov edi, eax
cmp edi, 0xffffffff
mov dword [0x40901c], edi
jne 0x4037d5
mov eax, str.Error_launching_installer
jmp 0x403a74
push esi
call fcn.00406188
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
cmp eax, ebx
mov dword [0x41f510], eax
mov esi, eax
jle 0x403948
mov eax, dword [0x42434c]
mov edi, esi
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
jl 0x40380d
mov edi, eax
push edi
push 0x417510
call fcn.00403daa
test eax, eax
je 0x403923
cmp dword [0x42434c], ebx
jne 0x4038a7
push 0x1c
lea eax, [ebp - 0x2c]
push 0x417510
push eax
call fcn.004062e0
mov ecx, dword [ebp - 0x2c]
test ecx, 0xfffffff0
jne 0x4038d9
cmp dword [ebp - 0x28], 0xdeadbeef
jne 0x4038d9
cmp dword [ebp - 0x1c], 0x74736e49
jne 0x4038d9
cmp dword [ebp - 0x20], 0x74666f73
jne 0x4038d9
cmp dword [ebp - 0x24], 0x6c6c754e
jne 0x4038d9
mov eax, dword [ebp - 0x14]
cmp eax, esi
jg 0x403a19
or dword [ebp + 8], ecx
mov edx, dword [0x417500]
test byte [ebp + 8], 8
mov dword [0x42434c], edx
jne 0x403899
test byte [ebp + 8], 4
jne 0x40393a
inc dword [ebp - 0x10]
lea esi, [eax - 4]
cmp edi, esi
jbe 0x4038d9
mov edi, esi
jmp 0x4038d9
test byte [ebp + 8], 2
jne 0x4038d9
cmp dword [ebp - 4], ebx
jne 0x40390e
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, dword [ebp - 8]
jbe 0x4038d9
push str.verifying_installer:__d__
push 0x4036c2
push ebx
push 0x6f
push dword [0x424340]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [ebp - 4], eax
cmp esi, dword [0x41f510]
jge 0x4038f2
push edi
push 0x417510
push dword [ebp - 0xc]
call fcn.00401e38
mov dword [ebp - 0xc], eax
add dword [0x417500], edi
sub esi, edi
cmp esi, ebx
jg 0x4037f2
jmp 0x40393a
lea eax, [ebp - 0x48]
push eax
call dword [sym.imp.USER32.dll_DispatchMessageA]
push 1
push ebx
push ebx
lea eax, [ebp - 0x48]
push ebx
push eax
call dword [sym.imp.USER32.dll_PeekMessageA]
test eax, eax
jne 0x403904
jmp 0x4038d9
cmp dword [ebp - 4], ebx
je 0x403a19
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x403a19
cmp dword [ebp - 4], ebx
je 0x403948
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
cmp dword [0x42434c], ebx
je 0x403a19
cmp dword [ebp - 0x10], ebx
je 0x403983
push dword [0x417500]
call fcn.00403ddc
lea eax, [ebp - 8]
push 4
push eax
call fcn.00403daa
test eax, eax
je 0x403a19
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp - 8]
jne 0x403a19
push dword [ebp - 0x18]
call fcn.00405fb5
mov ecx, 0x40b438
mov esi, eax
call fcn.00401000
lea eax, [ebp - 0x14c]
push 0x42b400
push eax
call fcn.0040632f
push ebx
push 0x4000100
push 2
push ebx
push ebx
lea eax, [ebp - 0x14c]
push 0xc0000000
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
mov dword [0x409020], eax
jne 0x4039d8
mov eax, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
jmp 0x403a74
mov eax, dword [0x42434c]
add eax, 0x1c
push eax
call fcn.00403ddc
mov ecx, dword [ebp - 0x2c]
push dword [ebp - 0x18]
not ecx
and ecx, 4
mov dword [0x41f514], eax
sub eax, ecx
mov ecx, dword [ebp - 0x14]
push esi
push ebx
lea eax, [eax + ecx - 0x1c]
push 0xffffffffffffffff
mov dword [0x417508], eax
call fcn.00403a7b
cmp eax, dword [ebp - 0x18]
je 0x403a20
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 0x403a74
test byte [ebp + 8], 2
mov dword [0x424348], esi
je 0x403a2f
or dword [esi], 8
mov eax, dword [esi]
and eax, 0x18
test byte [ebp - 0x2c], 1
mov dword [0x4243e0], eax
mov eax, dword [esi]
mov dword [0x424350], eax
je 0x403a4c
inc dword [0x424354]
push 8
lea eax, [esi + 0x44]
pop ecx
sub eax, 8
add dword [eax], esi
dec ecx
jne 0x403a52
mov eax, dword [0x417504]
push 0x40
mov dword [esi + 0x3c], eax
add esi, 4
push esi
push 0x424360
call fcn.004062e0
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4