Function at 0x4039ad
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, 0x429c00
push 0x400
push esi
add eax, 0x3e8
push dword [0x423f20]
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.00406643
mov edi, eax
cmp edi, 0xffffffff
mov dword [0x423f34], edi
jne 0x403a0d
mov eax, str.Error_launching_installer
jmp 0x403cac
push esi
call fcn.004064c5
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
cmp eax, ebx
mov dword [0x41f4e8], eax
mov esi, eax
jle 0x403b80
mov eax, dword [0x423f2c]
mov edi, esi
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
jl 0x403a45
mov edi, eax
push edi
push 0x4174e8
call fcn.00403fcb
test eax, eax
je 0x403b5b
cmp dword [0x423f2c], ebx
jne 0x403adf
push 0x1c
lea eax, [ebp - 0x2c]
push 0x4174e8
push eax
call fcn.0040661f
mov ecx, dword [ebp - 0x2c]
test ecx, 0xfffffff0
jne 0x403b11
cmp dword [ebp - 0x28], 0xdeadbeef
jne 0x403b11
cmp dword [ebp - 0x1c], 0x74736e49
jne 0x403b11
cmp dword [ebp - 0x20], 0x74666f73
jne 0x403b11
cmp dword [ebp - 0x24], 0x6c6c754e
jne 0x403b11
mov eax, dword [ebp - 0x14]
cmp eax, esi
jg 0x403c51
or dword [ebp + 8], ecx
mov edx, dword [0x4174d8]
test byte [ebp + 8], 8
mov dword [0x423f2c], edx
jne 0x403ad1
test byte [ebp + 8], 4
jne 0x403b72
inc dword [ebp - 0x10]
lea esi, [eax - 4]
cmp edi, esi
jbe 0x403b11
mov edi, esi
jmp 0x403b11
test byte [ebp + 8], 2
jne 0x403b11
cmp dword [ebp - 4], ebx
jne 0x403b46
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, dword [ebp - 8]
jbe 0x403b11
push str.verifying_installer:__d__
push 0x4038ec
push ebx
push 0x6f
push dword [0x423f20]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [ebp - 4], eax
cmp esi, dword [0x41f4e8]
jge 0x403b2a
push edi
push 0x4174e8
push dword [ebp - 0xc]
call fcn.00401efa
mov dword [ebp - 0xc], eax
add dword [0x4174d8], edi
sub esi, edi
cmp esi, ebx
jg 0x403a2a
jmp 0x403b72
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 0x403b3c
jmp 0x403b11
cmp dword [ebp - 4], ebx
je 0x403c51
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x403c51
cmp dword [ebp - 4], ebx
je 0x403b80
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
cmp dword [0x423f2c], ebx
je 0x403c51
cmp dword [ebp - 0x10], ebx
je 0x403bbb
push dword [0x4174d8]
call fcn.00403ffd
lea eax, [ebp - 8]
push 4
push eax
call fcn.00403fcb
test eax, eax
je 0x403c51
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp - 8]
jne 0x403c51
push dword [ebp - 0x18]
call fcn.00406405
push 0x40b440
mov esi, eax
call fcn.00401b7d
lea eax, [ebp - 0x14c]
push 0x42a400
push eax
call fcn.00406672
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 [0x409094], eax
jne 0x403c10
mov eax, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
jmp 0x403cac
mov eax, dword [0x423f2c]
add eax, 0x1c
push eax
call fcn.00403ffd
mov ecx, dword [ebp + 8]
push dword [ebp - 0x18]
not ecx
and ecx, 4
mov dword [0x41f4ec], eax
sub eax, ecx
mov ecx, dword [ebp - 0x14]
push esi
push ebx
lea eax, [eax + ecx - 0x1c]
push 0xffffffffffffffff
mov dword [0x4174e0], eax
call fcn.00403cb3
cmp eax, dword [ebp - 0x18]
je 0x403c58
push esi
call dword [sym.imp.KERNEL32.dll_GlobalFree]
mov eax, str.The_installer_you_are_trying_to_use_is_corrupted_or_incomplete._r_nThis_could_be_the_result_of_a_damaged_disk__a_failed_download_or_a_virus._r_n_r_nYou_may_want_to_contact_the_author_of_this_installer_to_obtain_a_new_copy._r_n_r_nIt_may_be_possible_to_skip_this_check_using_the__NCRC_command_line_switch_r_n_NOT_RECOMMENDED_.
jmp 0x403cac
test byte [ebp + 8], 2
mov dword [0x423f28], esi
je 0x403c67
or dword [esi], 8
mov eax, dword [esi]
and eax, 0x18
test byte [ebp - 0x2c], 1
mov dword [0x423f9c], eax
mov eax, dword [esi]
mov dword [0x423f30], eax
je 0x403c84
inc dword [0x423f38]
push 7
lea eax, [esi + 0x3c]
pop ecx
sub eax, 8
add dword [eax], esi
dec ecx
jne 0x403c8a
mov eax, dword [0x4174dc]
push 0x38
mov dword [esi + 0x34], eax
add esi, 4
push esi
push 0x423f40
call fcn.0040661f
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4