Function at 0x403020
Capabilities:
Get file size

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x128
push ebx
push esi
xor ebx, ebx
push edi
mov dword [ebp - 4], ebx
mov dword [ebp - 8], ebx
call dword [sym.imp.KERNEL32.dll_GetTickCount]
push 0x400
mov esi, 0x42ac00
push esi
add eax, 0x3e8
push ebx
mov dword [0x423c20], eax
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
push 3
push 0x80000000
push esi
call fcn.00405608
mov edi, eax
cmp edi, 0xffffffff
mov dword [0x409010], edi
jne 0x40307a
mov eax, str.Error_launching_installer
jmp 0x4032bf
push esi
mov esi, 0x429c00
push esi
call fcn.00405798
push esi
call fcn.00405913
push eax
push 0x42b000
call fcn.00405798
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
cmp eax, ebx
mov dword [0x41ad7c], eax
mov esi, eax
jle 0x403198
mov eax, dword [0x423c2c]
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
mov edi, esi
jl 0x4030c9
mov edi, eax
push edi
push 0x40acf0
call fcn.00402d2e
test eax, eax
je 0x403233
cmp dword [0x423c2c], ebx
jne 0x403162
push 0x1c
push 0x40acf0
lea eax, [ebp - 0x24]
push eax
call fcn.004055c8
mov eax, dword [ebp - 0x24]
test eax, 0xfffffff0
jne 0x40316f
cmp dword [ebp - 0x20], 0xdeadbeef
jne 0x40316f
cmp dword [ebp - 0x14], 0x74736e49
jne 0x40316f
cmp dword [ebp - 0x18], 0x74666f73
jne 0x40316f
cmp dword [ebp - 0x1c], 0x6c6c754e
jne 0x40316f
or dword [ebp + 8], eax
mov eax, dword [ebp + 8]
mov ecx, dword [0x41ad78]
and eax, 2
or dword [0x423ca0], eax
mov eax, dword [ebp - 0xc]
cmp eax, esi
mov dword [0x423c2c], ecx
jg 0x403277
test byte [ebp + 8], 8
jne 0x403154
test byte [ebp + 8], 4
jne 0x403198
inc dword [ebp - 8]
lea esi, [eax - 4]
cmp edi, esi
jbe 0x40316f
mov edi, esi
jmp 0x40316f
test byte [ebp + 8], 2
jne 0x40316f
push ebx
call fcn.00402c8f
pop ecx
cmp esi, dword [0x41ad7c]
jge 0x403188
push edi
push 0x40acf0
push dword [ebp - 4]
call fcn.00405fcd
mov dword [ebp - 4], eax
add dword [0x41ad78], edi
sub esi, edi
cmp esi, ebx
jg 0x4030ae
push 1
call fcn.00402c8f
cmp dword [0x423c2c], ebx
pop ecx
je 0x403277
cmp dword [ebp - 8], ebx
je 0x4031db
push dword [0x41ad78]
call fcn.00402d60
push 4
lea eax, [ebp + 8]
push eax
call fcn.00402d2e
test eax, eax
je 0x403277
mov eax, dword [ebp - 4]
cmp eax, dword [ebp + 8]
jne 0x403277
push dword [ebp - 0x10]
push 0x40
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
mov ecx, 0x412cf0
mov esi, eax
call fcn.00406036
push 0x42a400
lea eax, [ebp - 0x128]
push eax
call fcn.00405637
push ebx
push 0x4000100
push 2
push ebx
push ebx
push 0xc0000000
lea eax, [ebp - 0x128]
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
mov dword [0x409014], eax
jne 0x40323d
mov eax, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
jmp 0x4032bf
push 1
call fcn.00402c8f
pop ecx
jmp 0x403277
mov eax, dword [0x423c2c]
add eax, 0x1c
push eax
call fcn.00402d60
mov ecx, dword [ebp - 0x24]
push dword [ebp - 0x10]
not ecx
and ecx, 4
mov dword [0x41ed88], eax
sub eax, ecx
mov ecx, dword [ebp - 0xc]
push esi
push ebx
lea eax, [eax + ecx - 0x1c]
push 0xffffffffffffffff
mov dword [0x41ed84], eax
call fcn.00402ef5
cmp eax, dword [ebp - 0x10]
je 0x40327e
mov eax, str.Installer_integrity_check_has_failed._Common_causes_include_nincomplete_download_and_damaged_media._Contact_the_ninstallers_author_to_obtain_a_new_copy._n_nMore_information_at:_nhttp:__nsis.sf.net_NSIS_Error
jmp 0x4032bf
test byte [ebp - 0x24], 1
mov dword [0x423bcc], esi
mov eax, dword [esi]
mov dword [0x423c28], eax
je 0x403297
inc dword [0x423c24]
push 8
lea eax, [esi + 0x44]
pop ecx
sub eax, 8
add dword [eax], esi
dec ecx
jne 0x40329d
mov eax, dword [0x41ed80]
mov dword [esi + 0x3c], eax
push 0x40
add esi, 4
push esi
push 0x423be0
call fcn.004055c8
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4