Function at 0x40311b
Capabilities:
Get file size

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x28
push ebx
push esi
xor ebx, ebx
push edi
mov dword [ebp - 8], ebx
mov dword [ebp - 4], ebx
call dword [sym.imp.KERNEL32.dll_GetTickCount]
push 0x400
mov esi, 0x438800
push esi
add eax, 0x3e8
push ebx
mov dword [0x42a540], eax
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameW]
push 3
push 0x80000000
push esi
call fcn.004058fe
mov edi, eax
mov dword [ebp - 0xc], edi
mov dword [0x40a010], edi
cmp edi, 0xffffffff
jne 0x403175
mov eax, str.Error_launching_installer
jmp 0x40334a
push esi
mov esi, 0x436800
push esi
call fcn.00405ab7
push esi
call fcn.004060a2
push eax
push 0x439000
call fcn.00405ab7
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov dword [0x420998], eax
mov esi, eax
cmp eax, ebx
jle 0x403290
mov ebx, 0x418910
mov eax, dword [0x42a54c]
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
mov edi, esi
cmp esi, eax
jl 0x4031c9
mov edi, eax
push edi
push ebx
call fcn.00402ec7
test eax, eax
je 0x403351
cmp dword [0x42a54c], 0
jne 0x40325b
push 0x1c
push ebx
lea eax, [ebp - 0x28]
push eax
call fcn.004058ba
mov eax, dword [ebp - 0x28]
test eax, 0xfffffff0
jne 0x403269
cmp dword [ebp - 0x24], 0xa7190845
jne 0x403269
cmp dword [ebp - 0x18], 0x2617733f
jne 0x403269
cmp dword [ebp - 0x1c], 0xade48183
jne 0x403269
cmp dword [ebp - 0x20], 0x980d3f65
jne 0x403269
or dword [ebp + 8], eax
mov eax, dword [ebp + 8]
mov ecx, dword [0x41890c]
and eax, 2
or dword [0x42a5c0], eax
mov eax, dword [ebp - 0x10]
mov dword [0x42a54c], ecx
cmp eax, esi
jg 0x403359
test byte [ebp + 8], 8
jne 0x40324d
test byte [ebp + 8], 4
jne 0x40328e
inc dword [ebp - 4]
lea esi, [eax - 4]
cmp edi, esi
jbe 0x403269
mov edi, esi
jmp 0x403269
test byte [ebp + 8], 2
jne 0x403269
push 0
call fcn.00402e63
pop ecx
cmp esi, dword [0x420998]
jge 0x40327e
push edi
push ebx
push dword [ebp - 8]
call fcn.00406b61
mov dword [ebp - 8], eax
add dword [0x41890c], edi
sub esi, edi
test esi, esi
jg 0x4031ae
xor ebx, ebx
push 1
call fcn.00402e63
pop ecx
cmp dword [0x42a54c], ebx
je 0x403359
cmp dword [ebp - 4], ebx
je 0x4032d3
push dword [0x41890c]
call fcn.00402ef9
push 4
lea eax, [ebp + 8]
push eax
call fcn.00402ec7
test eax, eax
je 0x403359
mov eax, dword [ebp - 8]
cmp eax, dword [ebp + 8]
jne 0x403359
push dword [ebp - 0x14]
push 0x40
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
mov esi, eax
mov eax, dword [0x42a54c]
add eax, 0x1c
push eax
call fcn.00402ef9
push dword [ebp - 0x14]
push esi
push ebx
push 0xffffffffffffffff
call fcn.00402f13
cmp eax, dword [ebp - 0x14]
jne 0x403359
test byte [ebp - 0x28], 1
mov dword [0x42a4ec], esi
mov eax, dword [esi]
mov dword [0x42a548], eax
je 0x403318
inc dword [0x42a544]
push 8
pop ecx
lea eax, [esi + 0x44]
sub eax, 8
add dword [eax], esi
dec ecx
cmp ecx, ebx
jne 0x40331e
push 1
push ebx
push ebx
push dword [ebp - 0xc]
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
mov dword [esi + 0x3c], eax
push 0x40
add esi, 4
push esi
push 0x42a500
call fcn.004058ba
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4
push 1
call fcn.00402e63
pop ecx
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 0x40334a